test/unit/selector.js

   1 QUnit.module( "selector", {
   2         beforeEach: function() {
   3                 this.safari = /\bsafari\b/i.test( navigator.userAgent ) &&
   4                         !/\bchrome\b/i.test( navigator.userAgent );
   5         },
   6         afterEach: moduleTeardown
   7 } );
   8
   9 QUnit.test( "empty", function( assert ) {
  10         assert.expect( 5 );
  11
  12         var form;
  13
  14         assert.strictEqual( jQuery( "" ).length, 0,
  15                 "Empty selector returns an empty array" );
  16
  17         assert.deepEqual( jQuery( "div", document.createTextNode( "" ) ).get(), [],
  18                 "Text element as context fails silently" );
  19         form = document.getElementById( "form" );
  20         assert.ok( !jQuery( form ).is( "" ), "Empty string passed to .is() does not match" );
  21
  22         if ( QUnit.jQuerySelectors ) {
  23                 assert.equal( jQuery( " " ).length, 0, "Empty selector returns an empty array" );
  24                 assert.equal( jQuery( "\t" ).length, 0, "Empty selector returns an empty array" );
  25         } else {
  26                 assert.ok( "skip", "whitespace-only selector not supported in selector-native" );
  27                 assert.ok( "skip", "whitespace-only selector not supported in selector-native" );
  28         }
  29 } );
  30
  31 QUnit.test( "star", function( assert ) {
  32         assert.expect( 2 );
  33
  34         var good, i;
  35         var all = jQuery( "*" );
  36
  37         assert.ok( all.length >= 30, "Select all" );
  38         good = true;
  39         for ( i = 0; i < all.length; i++ ) {
  40                 if ( all[ i ].nodeType === 8 ) {
  41                         good = false;
  42                 }
  43         }
  44         assert.ok( good, "Select all elements, no comment nodes" );
  45 } );
  46
  47 QUnit.test( "element", function( assert ) {
  48         assert.expect( 37 );
  49
  50         var i, lengthtest, siblingTest, html;
  51         var fixture = document.getElementById( "qunit-fixture" );
  52
  53         assert.deepEqual( jQuery( "p", fixture ).get(), q( "firstp", "ap", "sndp", "en", "sap", "first" ), "Finding elements with a Node context." );
  54         assert.deepEqual( jQuery( "p", "#qunit-fixture" ).get(), q( "firstp", "ap", "sndp", "en", "sap", "first" ), "Finding elements with a selector context." );
  55         assert.deepEqual( jQuery( "p", jQuery( "#qunit-fixture" ) ).get(), q( "firstp", "ap", "sndp", "en", "sap", "first" ), "Finding elements with a jQuery object context." );
  56         assert.deepEqual( jQuery( "#qunit-fixture" ).find( "p" ).get(), q( "firstp", "ap", "sndp", "en", "sap", "first" ), "Finding elements with a context via .find()." );
  57
  58         assert.ok( jQuery( "#length" ).length, "<input name=\"length\"> cannot be found under IE, see #945" );
  59         assert.ok( jQuery( "#lengthtest input" ).length, "<input name=\"length\"> cannot be found under IE, see #945" );
  60
  61         // #7533
  62         assert.equal( jQuery( "<div id=\"A'B~C.D[E]\"><p>foo</p></div>" ).find( "p" ).length, 1, "Find where context root is a node and has an ID with CSS3 meta characters" );
  63
  64         assert.equal( jQuery( "" ).length, 0, "Empty selector returns an empty array" );
  65         assert.deepEqual( jQuery( "div", document.createTextNode( "" ) ).get(), [],
  66                 "Text element as context fails silently" );
  67
  68         assert.t( "Element Selector", "html", [ "html" ] );
  69         assert.t( "Element Selector", "body", [ "body" ] );
  70         assert.t( "Element Selector", "#qunit-fixture p", [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
  71
  72         assert.t( "Leading space", " #qunit-fixture p", [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
  73         assert.t( "Leading tab", "\t#qunit-fixture p", [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
  74         assert.t( "Leading carriage return", "\r#qunit-fixture p", [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
  75         assert.t( "Leading line feed", "\n#qunit-fixture p", [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
  76         assert.t( "Leading form feed", "\f#qunit-fixture p", [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
  77         assert.t( "Trailing space", "#qunit-fixture p ", [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
  78         assert.t( "Trailing tab", "#qunit-fixture p\t", [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
  79         assert.t( "Trailing carriage return", "#qunit-fixture p\r",
  80                 [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
  81         assert.t( "Trailing line feed", "#qunit-fixture p\n", [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
  82         assert.t( "Trailing form feed", "#qunit-fixture p\f", [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
  83
  84         assert.deepEqual(
  85                 jQuery( jQuery( "div ol" ) ).filter( "#qunit-fixture *" ).get(),
  86                 q( "empty", "listWithTabIndex" ),
  87                 "Parent Element"
  88         );
  89         assert.deepEqual(
  90                 jQuery( jQuery( "div\tol" ) ).filter( "#qunit-fixture *" ).get(),
  91                 q( "empty", "listWithTabIndex" ),
  92                 "Parent Element (non-space descendant combinator)"
  93         );
  94
  95         // Check for unique-ness and sort order
  96         assert.deepEqual( jQuery( "p, div p" ), jQuery( "p" ), "Check for duplicates: p, div p" );
  97
  98         jQuery( "<h1 id='h1'></h1><h2 id='h2'></h2><h2 id='h2-2'></h2>" ).prependTo( "#qunit-fixture" );
  99         assert.t( "Checking sort order", "#qunit-fixture h2, #qunit-fixture h1", [ "h1", "h2", "h2-2" ] );
 100
 101         if ( QUnit.jQuerySelectorsPos ) {
 102                 assert.t( "Checking sort order", "#qunit-fixture h2:first, #qunit-fixture h1:first", [ "h1", "h2" ] );
 103         } else {
 104                 assert.ok( "skip", "Positional selectors are not supported" );
 105         }
 106
 107         assert.t( "Checking sort order", "#qunit-fixture p, #qunit-fixture p a",
 108                 [ "firstp", "simon1", "ap", "google", "groups", "anchor1", "mark", "sndp", "en", "yahoo",
 109                         "sap", "anchor2", "simon", "first" ] );
 110
 111         // Test Conflict ID
 112         lengthtest = document.getElementById( "lengthtest" );
 113         assert.deepEqual( jQuery( "#idTest", lengthtest ).get(), q( "idTest" ),
 114                 "Finding element with id of ID." );
 115         assert.deepEqual( jQuery( "[name='id']", lengthtest ).get(), q( "idTest" ),
 116                 "Finding element with id of ID." );
 117         assert.deepEqual( jQuery( "input[id='idTest']", lengthtest ).get(), q( "idTest" ),
 118                 "Finding elements with id of ID." );
 119
 120         if ( QUnit.jQuerySelectors ) {
 121                 siblingTest = document.getElementById( "siblingTest" );
 122                 assert.deepEqual( jQuery( "div em", siblingTest ).get(), [],
 123                         "Element-rooted QSA does not select based on document context" );
 124                 assert.deepEqual( jQuery( "div em, div em, div em:not(div em)", siblingTest ).get(), [],
 125                         "Element-rooted QSA does not select based on document context" );
 126                 assert.deepEqual( jQuery( "div em, em\\,", siblingTest ).get(), [],
 127                         "Escaped commas do not get treated with an id in element-rooted QSA" );
 128         } else {
 129                 assert.ok( "skip", "Element-rooted QSA behavior different in selector-native" );
 130                 assert.ok( "skip", "Element-rooted QSA behavior different in selector-native" );
 131                 assert.ok( "skip", "Element-rooted QSA behavior different in selector-native" );
 132         }
 133
 134         html = "";
 135         for ( i = 0; i < 100; i++ ) {
 136                 html = "<div>" + html + "</div>";
 137         }
 138         html = jQuery( html ).appendTo( document.body );
 139         assert.ok( !!jQuery( "body div div div" ).length,
 140                 "No stack or performance problems with large amounts of descendants" );
 141         assert.ok( !!jQuery( "body>div div div" ).length,
 142                 "No stack or performance problems with large amounts of descendants" );
 143         html.remove();
 144
 145         // Real use case would be using .watch in browsers with window.watch (see Issue #157)
 146         q( "qunit-fixture" )[ 0 ].appendChild( document.createElement( "toString" ) ).id = "toString";
 147         assert.t( "Element name matches Object.prototype property", "toString#toString", [ "toString" ] );
 148 } );
 149
 150 QUnit.test( "XML Document Selectors", function( assert ) {
 151         assert.expect( 11 );
 152
 153         var xml = createWithFriesXML();
 154
 155         assert.equal( jQuery( "foo_bar", xml ).length, 1, "Element Selector with underscore" );
 156         assert.equal( jQuery( ".component", xml ).length, 1, "Class selector" );
 157         assert.equal( jQuery( "[class*=component]", xml ).length, 1, "Attribute selector for class" );
 158         assert.equal( jQuery( "property[name=prop2]", xml ).length, 1, "Attribute selector with name" );
 159         assert.equal( jQuery( "[name=prop2]", xml ).length, 1, "Attribute selector with name" );
 160         assert.equal( jQuery( "#seite1", xml ).length, 1, "Attribute selector with ID" );
 161         assert.equal( jQuery( "component#seite1", xml ).length, 1, "Attribute selector with ID" );
 162         assert.equal( jQuery( "component", xml ).filter( "#seite1" ).length, 1,
 163                 "Attribute selector filter with ID" );
 164         assert.equal( jQuery( "meta property thing", xml ).length, 2,
 165                 "Descendent selector and dir caching" );
 166         if ( QUnit.jQuerySelectors ) {
 167                 assert.ok( jQuery( xml.lastChild ).is( "soap\\:Envelope" ), "Check for namespaced element" );
 168
 169                 xml = jQuery.parseXML( "<?xml version='1.0' encoding='UTF-8'?><root><elem id='1'/></root>" );
 170
 171                 assert.equal( jQuery( "elem:not(:has(*))", xml ).length, 1,
 172                         "Non-qSA path correctly handles numeric ids (jQuery #14142)" );
 173         } else {
 174                 assert.ok( "skip", "namespaced elements not matching correctly in selector-native" );
 175                 assert.ok( "skip", ":not(complex selector) not supported in selector-native" );
 176         }
 177 } );
 178
 179 QUnit.test( "broken selectors throw", function( assert ) {
 180         assert.expect( 33 );
 181
 182         function broken( name, selector ) {
 183                 assert.throws( function() {
 184                         jQuery( selector );
 185                 }, name + ": " + selector );
 186         }
 187
 188         broken( "Broken Selector", "[" );
 189         broken( "Broken Selector", "(" );
 190         broken( "Broken Selector", "{" );
 191         broken( "Broken Selector", "<" );
 192         broken( "Broken Selector", "()" );
 193         broken( "Broken Selector", "<>" );
 194         broken( "Broken Selector", "{}" );
 195         broken( "Broken Selector", "," );
 196         broken( "Broken Selector", ",a" );
 197         broken( "Broken Selector", "a," );
 198         broken( "Post-comma invalid selector", "*,:x" );
 199         broken( "Identifier with bad escape", "foo\\\fbaz" );
 200         broken( "Broken Selector", "[id=012345678901234567890123456789" );
 201         broken( "Doesn't exist", ":visble" );
 202         broken( "Nth-child", ":nth-child" );
 203         broken( "Nth-child", ":nth-child(-)" );
 204         broken( "Nth-child", ":nth-child(asdf)", [] );
 205         broken( "Nth-child", ":nth-child(2n+-0)" );
 206         broken( "Nth-child", ":nth-child(2+0)" );
 207         broken( "Nth-child", ":nth-child(- 1n)" );
 208         broken( "Nth-child", ":nth-child(-1 n)" );
 209         broken( "First-child", ":first-child(n)" );
 210         broken( "Last-child", ":last-child(n)" );
 211         broken( "Only-child", ":only-child(n)" );
 212         broken( "Nth-last-last-child", ":nth-last-last-child(1)" );
 213         broken( "First-last-child", ":first-last-child" );
 214         broken( "Last-last-child", ":last-last-child" );
 215         broken( "Only-last-child", ":only-last-child" );
 216
 217         // Make sure attribute value quoting works correctly. See: #6093
 218         jQuery( "<input type='hidden' value='2' name='foo.baz' id='attrbad1'/>" +
 219                 "<input type='hidden' value='2' name='foo[baz]' id='attrbad2'/>" )
 220                 .appendTo( "#qunit-fixture" );
 221
 222         broken( "Attribute equals non-value", "input[name=]" );
 223         broken( "Attribute equals unquoted non-identifier", "input[name=foo.baz]" );
 224         broken( "Attribute equals unquoted non-identifier", "input[name=foo[baz]]" );
 225         broken( "Attribute equals bad string", "input[name=''double-quoted'']" );
 226         broken( "Attribute equals bad string", "input[name='apostrophe'd']" );
 227 } );
 228
 229 QUnit.test( "id", function( assert ) {
 230         assert.expect( 34 );
 231
 232         var fiddle, a;
 233
 234         assert.t( "ID Selector", "#body", [ "body" ] );
 235         assert.t( "ID Selector w/ Element", "body#body", [ "body" ] );
 236         assert.t( "ID Selector w/ Element", "ul#first", [] );
 237         assert.t( "ID selector with existing ID descendant", "#firstp #simon1", [ "simon1" ] );
 238         assert.t( "ID selector with non-existent descendant", "#firstp #foobar", [] );
 239         assert.t( "ID selector using UTF8", "#台北Táiběi", [ "台北Táiběi" ] );
 240         assert.t( "Multiple ID selectors using UTF8", "#台北Táiběi, #台北", [ "台北Táiběi", "台北" ] );
 241         assert.t( "Descendant ID selector using UTF8", "div #台北", [ "台北" ] );
 242         assert.t( "Child ID selector using UTF8", "form > #台北", [ "台北" ] );
 243
 244         assert.t( "Escaped ID", "#foo\\:bar", [ "foo:bar" ] );
 245
 246         if ( QUnit.jQuerySelectors ) {
 247                 assert.t( "Escaped ID with descendant", "#foo\\:bar span:not(:input)", [ "foo_descendant" ] );
 248         } else {
 249                 assert.ok( "skip", ":input not supported in selector-native" );
 250         }
 251
 252         assert.t( "Escaped ID", "#test\\.foo\\[5\\]bar", [ "test.foo[5]bar" ] );
 253         assert.t( "Descendant escaped ID", "div #foo\\:bar", [ "foo:bar" ] );
 254         assert.t( "Descendant escaped ID", "div #test\\.foo\\[5\\]bar", [ "test.foo[5]bar" ] );
 255         assert.t( "Child escaped ID", "form > #foo\\:bar", [ "foo:bar" ] );
 256         assert.t( "Child escaped ID", "form > #test\\.foo\\[5\\]bar", [ "test.foo[5]bar" ] );
 257
 258         fiddle = jQuery( "<div id='fiddle\\Foo'><span id='fiddleSpan'></span></div>" )
 259                 .appendTo( "#qunit-fixture" );
 260
 261         if ( QUnit.jQuerySelectors ) {
 262                 assert.deepEqual( jQuery( "> span", jQuery( "#fiddle\\\\Foo" )[ 0 ] ).get(),
 263                         q( [ "fiddleSpan" ] ), "Escaped ID as context" );
 264         } else {
 265                 assert.ok( "skip", "leading > not supported in selector-native" );
 266         }
 267
 268         fiddle.remove();
 269
 270         assert.t( "ID Selector, child ID present", "#form > #radio1", [ "radio1" ] ); // bug #267
 271         assert.t( "ID Selector, not an ancestor ID", "#form #first", [] );
 272         assert.t( "ID Selector, not a child ID", "#form > #option1a", [] );
 273
 274         assert.t( "All Children of ID", "#foo > *", [ "sndp", "en", "sap" ] );
 275         assert.t( "All Children of ID with no children", "#firstUL > *", [] );
 276
 277         assert.equal( jQuery( "#tName1" )[ 0 ].id, "tName1",
 278                 "ID selector with same value for a name attribute" );
 279         assert.t( "ID selector non-existing but name attribute on an A tag", "#tName2", [] );
 280         assert.t( "Leading ID selector non-existing but name attribute on an A tag", "#tName2 span", [] );
 281         assert.t( "Leading ID selector existing, retrieving the child", "#tName1 span", [ "tName1-span" ] );
 282         assert.equal( jQuery( "div > div #tName1" )[ 0 ].id, jQuery( "#tName1-span" )[ 0 ].parentNode.id,
 283                 "Ending with ID" );
 284
 285         a = jQuery( "<a id='backslash\\foo'></a>" ).appendTo( "#qunit-fixture" );
 286         assert.t( "ID Selector contains backslash", "#backslash\\\\foo", [ "backslash\\foo" ] );
 287         a.remove();
 288
 289         assert.t( "ID Selector on Form with an input that has a name of 'id'", "#lengthtest", [ "lengthtest" ] );
 290
 291         assert.t( "ID selector with non-existent ancestor", "#asdfasdf #foobar", [] ); // bug #986
 292
 293         assert.deepEqual( jQuery( "div#form", document.body ).get(), [],
 294                 "ID selector within the context of another element" );
 295
 296         assert.t( "Underscore ID", "#types_all", [ "types_all" ] );
 297         assert.t( "Dash ID", "#qunit-fixture", [ "qunit-fixture" ] );
 298
 299         assert.t( "ID with weird characters in it", "#name\\+value", [ "name+value" ] );
 300 } );
 301
 302 QUnit.test( "class", function( assert ) {
 303         assert.expect( 32 );
 304
 305         assert.deepEqual( jQuery( ".blog", document.getElementsByTagName( "p" ) ).get(),
 306                 q( "mark", "simon" ), "Finding elements with a context." );
 307         assert.deepEqual( jQuery( ".blog", "p" ).get(),
 308                 q( "mark", "simon" ), "Finding elements with a context." );
 309         assert.deepEqual( jQuery( ".blog", jQuery( "p" ) ).get(),
 310                 q( "mark", "simon" ), "Finding elements with a context." );
 311         assert.deepEqual( jQuery( "p" ).find( ".blog" ).get(),
 312                 q( "mark", "simon" ), "Finding elements with a context." );
 313
 314         assert.t( "Class Selector", ".blog", [ "mark", "simon" ] );
 315         assert.t( "Class Selector", ".GROUPS", [ "groups" ] );
 316         assert.t( "Class Selector", ".blog.link", [ "simon" ] );
 317         assert.t( "Class Selector w/ Element", "a.blog", [ "mark", "simon" ] );
 318         assert.t( "Parent Class Selector", "p .blog", [ "mark", "simon" ] );
 319
 320         assert.t( "Class selector using UTF8", ".台北Táiběi", [ "utf8class1" ] );
 321         assert.t( "Class selector using UTF8", ".台北", [ "utf8class1", "utf8class2" ] );
 322         assert.t( "Class selector using UTF8", ".台北Táiběi.台北", [ "utf8class1" ] );
 323         assert.t( "Class selector using UTF8", ".台北Táiběi, .台北", [ "utf8class1", "utf8class2" ] );
 324         assert.t( "Descendant class selector using UTF8", "div .台北Táiběi", [ "utf8class1" ] );
 325         assert.t( "Child class selector using UTF8", "form > .台北Táiběi", [ "utf8class1" ] );
 326
 327         assert.t( "Escaped Class", ".foo\\:bar", [ "foo:bar" ] );
 328         assert.t( "Escaped Class", ".test\\.foo\\[5\\]bar", [ "test.foo[5]bar" ] );
 329         assert.t( "Descendant escaped Class", "div .foo\\:bar", [ "foo:bar" ] );
 330         assert.t( "Descendant escaped Class", "div .test\\.foo\\[5\\]bar", [ "test.foo[5]bar" ] );
 331         assert.t( "Child escaped Class", "form > .foo\\:bar", [ "foo:bar" ] );
 332         assert.t( "Child escaped Class", "form > .test\\.foo\\[5\\]bar", [ "test.foo[5]bar" ] );
 333
 334         var div = document.createElement( "div" );
 335         div.innerHTML = "<div class='test e'></div><div class='test'></div>";
 336         assert.deepEqual( jQuery( ".e", div ).get(), [ div.firstChild ], "Finding a second class." );
 337
 338         div.lastChild.className = "e";
 339
 340         assert.ok( !jQuery( div ).is( ".null" ),
 341                 ".null does not match an element with no class" );
 342         assert.ok( !jQuery( div.firstChild ).is( ".null div" ),
 343                 ".null does not match an element with no class" );
 344         div.className = "null";
 345         assert.ok( jQuery( div ).is( ".null" ), ".null matches element with class 'null'" );
 346         assert.ok( jQuery( div.firstChild ).is( ".null div" ),
 347                 "caching system respects DOM changes" );
 348         assert.ok( !jQuery( document ).is( ".foo" ),
 349                 "testing class on document doesn't error" );
 350         assert.ok( !jQuery( window ).is( ".foo" ), "testing class on window doesn't error" );
 351
 352         assert.deepEqual( jQuery( ".e", div ).get(), [ div.firstChild, div.lastChild ],
 353                 "Finding a modified class." );
 354
 355         div.lastChild.className += " hasOwnProperty toString";
 356         assert.deepEqual( jQuery( ".e.hasOwnProperty.toString", div ).get(), [ div.lastChild ],
 357                 "Classes match Object.prototype properties" );
 358
 359         div = jQuery( "<div><svg width='200' height='250' version='1.1'" +
 360                 " xmlns='http://www.w3.org/2000/svg'><rect x='10' y='10' width='30' height='30'" +
 361                 "class='foo'></rect></svg></div>" )[ 0 ];
 362         assert.equal( jQuery( ".foo", div ).length, 1, "Class selector against SVG container" );
 363         assert.equal( jQuery( ".foo", div.firstChild ).length, 1,
 364                 "Class selector directly against SVG" );
 365 } );
 366
 367 QUnit.test( "name", function( assert ) {
 368         assert.expect( 14 );
 369
 370         var form;
 371
 372         assert.t( "Name selector", "input[name=action]", [ "text1" ] );
 373         assert.t( "Name selector with single quotes", "input[name='action']", [ "text1" ] );
 374         assert.t( "Name selector with double quotes", "input[name=\"action\"]", [ "text1" ] );
 375
 376         assert.t( "Name selector non-input", "[name=example]", [ "name-is-example" ] );
 377         assert.t( "Name selector non-input", "[name=div]", [ "name-is-div" ] );
 378         assert.t( "Name selector non-input", "*[name=iframe]", [ "iframe" ] );
 379
 380         assert.t( "Name selector for grouped input", "input[name='types[]']", [ "types_all", "types_anime", "types_movie" ] );
 381
 382         form = document.getElementById( "form" );
 383         assert.deepEqual( jQuery( "input[name=action]", form ).get(), q( "text1" ),
 384                 "Name selector within the context of another element" );
 385         assert.deepEqual( jQuery( "input[name='foo[bar]']", form ).get(), q( "hidden2" ),
 386                 "Name selector for grouped form element within the context of another element" );
 387
 388         form = jQuery( "<form><input name='id'/></form>" ).appendTo( "body" );
 389         assert.equal( jQuery( "input", form[ 0 ] ).length, 1,
 390                 "Make sure that rooted queries on forms (with possible expandos) work." );
 391
 392         form.remove();
 393
 394         assert.t( "Find elements that have similar IDs", "[name=tName1]", [ "tName1ID" ] );
 395         assert.t( "Find elements that have similar IDs", "[name=tName2]", [ "tName2ID" ] );
 396         assert.t( "Find elements that have similar IDs", "#tName2ID", [ "tName2ID" ] );
 397
 398         assert.t( "Case-sensitivity", "[name=tname1]", [] );
 399 } );
 400
 401 QUnit.test( "comma-separated", function( assert ) {
 402         assert.expect( 4 );
 403
 404         var fixture = jQuery( "<div><h2><span></span></h2><div><p><span></span></p><p></p></div></div>" );
 405
 406         assert.equal( fixture.find( "h2, div p" ).filter( "p" ).length, 2, "has to find two <p>" );
 407         assert.equal( fixture.find( "h2, div p" ).filter( "h2" ).length, 1, "has to find one <h2>" );
 408         assert.equal( fixture.find( "h2 , div p" ).filter( "p" ).length, 2, "has to find two <p>" );
 409         assert.equal( fixture.find( "h2 , div p" ).filter( "h2" ).length, 1, "has to find one <h2>" );
 410 } );
 411
 412 QUnit.test( "child and adjacent", function( assert ) {
 413         assert.expect( 43 );
 414
 415         var siblingFirst, en, nothiddendiv;
 416
 417         assert.t( "Child", "p > a", [ "simon1", "google", "groups", "mark", "yahoo", "simon" ] );
 418         assert.t( "Child minus leading whitespace", "p> a", [ "simon1", "google", "groups", "mark", "yahoo", "simon" ] );
 419         assert.t( "Child minus trailing whitespace", "p >a", [ "simon1", "google", "groups", "mark", "yahoo", "simon" ] );
 420         assert.t( "Child minus whitespace", "p>a", [ "simon1", "google", "groups", "mark", "yahoo", "simon" ] );
 421         assert.t( "Child w/ Class", "p > a.blog", [ "mark", "simon" ] );
 422         assert.t( "All Children", "code > *", [ "anchor1", "anchor2" ] );
 423         assert.selectInFixture( "All Grandchildren", "p > * > *", [ "anchor1", "anchor2" ] );
 424
 425         assert.t( "Rooted tag adjacent", "#qunit-fixture a + a", [ "groups", "tName2ID" ] );
 426         assert.t( "Rooted tag adjacent minus whitespace", "#qunit-fixture a+a", [ "groups", "tName2ID" ] );
 427         assert.t( "Rooted tag adjacent minus leading whitespace", "#qunit-fixture a +a",
 428                 [ "groups", "tName2ID" ] );
 429         assert.t( "Rooted tag adjacent minus trailing whitespace", "#qunit-fixture a+ a",
 430                 [ "groups", "tName2ID" ] );
 431
 432         assert.t( "Tag adjacent", "p + p", [ "ap", "en", "sap" ] );
 433         assert.t( "#id adjacent", "#firstp + p", [ "ap" ] );
 434         assert.t( "Tag#id adjacent", "p#firstp + p", [ "ap" ] );
 435         assert.t( "Tag[attr] adjacent", "p[lang=en] + p", [ "sap" ] );
 436         assert.t( "Tag.class adjacent", "a.GROUPS + code + a", [ "mark" ] );
 437         assert.t( "Comma, Child, and Adjacent", "#qunit-fixture a + a, code > a",
 438                 [ "groups", "anchor1", "anchor2", "tName2ID" ] );
 439
 440         assert.t( "Element Preceded By", "#qunit-fixture p ~ div",
 441                 [ "foo", "nothiddendiv", "moretests", "tabindex-tests", "liveHandlerOrder", "siblingTest", "fx-test-group" ] );
 442         assert.t( "Element Preceded By", "#first ~ div",
 443                 [ "moretests", "tabindex-tests", "liveHandlerOrder", "siblingTest", "fx-test-group" ] );
 444         assert.t( "Element Preceded By", "#groups ~ a", [ "mark" ] );
 445         assert.t( "Element Preceded By", "#length ~ input", [ "idTest" ] );
 446         assert.t( "Element Preceded By", "#siblingfirst ~ em", [ "siblingnext", "siblingthird" ] );
 447         assert.t( "Element Preceded By (multiple)", "#siblingTest em ~ em ~ em ~ span", [ "siblingspan" ] );
 448
 449         siblingFirst = document.getElementById( "siblingfirst" );
 450
 451         if ( QUnit.jQuerySelectors ) {
 452                 assert.deepEqual( jQuery( "+ em", siblingFirst ).get(), q( "siblingnext" ),
 453                         "Element Directly Preceded By with a context." );
 454                 assert.deepEqual( jQuery( "~ em", siblingFirst ).get(), q( "siblingnext", "siblingthird" ),
 455                         "Element Preceded By with a context." );
 456         } else {
 457                 assert.ok( "skip", "leading + not supported in selector-native" );
 458                 assert.ok( "skip", "leading ~ not supported in selector-native" );
 459         }
 460
 461         if ( QUnit.jQuerySelectorsPos ) {
 462                 assert.deepEqual( jQuery( "~ em:first", siblingFirst ).get(), q( "siblingnext" ),
 463                         "Element Preceded By positional with a context." );
 464         } else {
 465                 assert.ok( "skip", "Positional selectors are not supported" );
 466         }
 467
 468         if ( QUnit.jQuerySelectors ) {
 469                 en = document.getElementById( "en" );
 470                 assert.deepEqual( jQuery( "+ p, a", en ).get(), q( "yahoo", "sap" ),
 471                         "Compound selector with context, beginning with sibling test." );
 472                 assert.deepEqual( jQuery( "a, + p", en ).get(), q( "yahoo", "sap" ),
 473                         "Compound selector with context, containing sibling test." );
 474         } else {
 475                 assert.ok( "skip", "leading + not supported in selector-native" );
 476                 assert.ok( "skip", "leading + not supported in selector-native" );
 477         }
 478
 479         if ( QUnit.jQuerySelectors ) {
 480                 assert.t( "Element Preceded By, Containing", "#liveHandlerOrder ~ div em:contains('1')", [ "siblingfirst" ] );
 481                 assert.t( "Combinators are not skipped when mixing general and specific", "#siblingTest > em:contains('x') + em ~ span", [] );
 482         } else {
 483                 assert.ok( "skip", ":contains not supported in selector-native" );
 484                 assert.ok( "skip", ":contains not supported in selector-native" );
 485         }
 486
 487         if ( QUnit.jQuerySelectorsPos ) {
 488                 assert.equal( jQuery( "#listWithTabIndex li:eq(2) ~ li" ).length, 1, "Find by general sibling combinator (#8310)" );
 489
 490                 nothiddendiv = document.getElementById( "nothiddendiv" );
 491                 assert.deepEqual( jQuery( "> :first", nothiddendiv ).get(), q( "nothiddendivchild" ),
 492                         "Verify child context positional selector" );
 493                 assert.deepEqual( jQuery( "> :eq(0)", nothiddendiv ).get(), q( "nothiddendivchild" ),
 494                         "Verify child context positional selector" );
 495                 assert.deepEqual( jQuery( "> *:first", nothiddendiv ).get(), q( "nothiddendivchild" ),
 496                         "Verify child context positional selector" );
 497         } else {
 498                 assert.ok( "skip", "Positional selectors are not supported" );
 499                 assert.ok( "skip", "Positional selectors are not supported" );
 500                 assert.ok( "skip", "Positional selectors are not supported" );
 501                 assert.ok( "skip", "Positional selectors are not supported" );
 502         }
 503
 504         assert.t( "Multiple combinators selects all levels", "#siblingTest em *", [ "siblingchild", "siblinggrandchild", "siblinggreatgrandchild" ] );
 505         assert.t( "Multiple combinators selects all levels", "#siblingTest > em *", [ "siblingchild", "siblinggrandchild", "siblinggreatgrandchild" ] );
 506         assert.t( "Multiple sibling combinators doesn't miss general siblings", "#siblingTest > em:first-child + em ~ span", [ "siblingspan" ] );
 507
 508         assert.equal( jQuery( "#listWithTabIndex" ).length, 1, "Parent div for next test is found via ID (#8310)" );
 509         assert.equal( jQuery( "#__sizzle__" ).length, 0, "Make sure the temporary id assigned by sizzle is cleared out (#8310)" );
 510         assert.equal( jQuery( "#listWithTabIndex" ).length, 1, "Parent div for previous test is still found via ID (#8310)" );
 511
 512         assert.t( "Verify deep class selector", "div.blah > p > a", [] );
 513         assert.t( "No element deep selector", "div.foo > span > a", [] );
 514         assert.t( "Non-existent ancestors", ".fototab > .thumbnails > a", [] );
 515 } );
 516
 517 QUnit.test( "attributes - existence", function( assert ) {
 518         assert.expect( 7 );
 519
 520         assert.t( "On element", "#qunit-fixture a[title]", [ "google" ] );
 521         assert.t( "On element (whitespace ignored)", "#qunit-fixture a[ title ]", [ "google" ] );
 522         assert.t( "On element (case-insensitive)", "#qunit-fixture a[TITLE]", [ "google" ] );
 523         assert.t( "On any element", "#qunit-fixture *[title]", [ "google" ] );
 524         assert.t( "On implicit element", "#qunit-fixture [title]", [ "google" ] );
 525         assert.t( "Boolean", "#select2 option[selected]", [ "option2d" ] );
 526         assert.t( "For attribute on label", "form label[for]", [ "label-for" ] );
 527 } );
 528
 529 QUnit.test( "attributes - equals", function( assert ) {
 530         assert.expect( 20 );
 531
 532         var withScript;
 533
 534         assert.t( "Identifier", "#qunit-fixture a[rel=bookmark]", [ "simon1" ] );
 535         assert.t( "Identifier with underscore", "input[id=types_all]", [ "types_all" ] );
 536         assert.t( "String", "#qunit-fixture a[rel='bookmark']", [ "simon1" ] );
 537         assert.t( "String (whitespace ignored)", "#qunit-fixture a[ rel = 'bookmark' ]", [ "simon1" ] );
 538         assert.t( "Non-identifier string", "#qunit-fixture a[href='https://www.google.com/']", [ "google" ] );
 539         assert.t( "Empty string", "#select1 option[value='']", [ "option1a" ] );
 540
 541         if ( QUnit.jQuerySelectors ) {
 542                 assert.t( "Number",
 543                         "#qunit-fixture option[value=1]",
 544                         [ "option1b", "option2b", "option3b", "option4b", "option5c" ] );
 545                 assert.t( "negative number",
 546                         "#qunit-fixture li[tabIndex=-1]", [ "foodWithNegativeTabIndex" ] );
 547         } else {
 548                 assert.ok( "skip", "Number value not supported in selector-native" );
 549                 assert.ok( "skip", "Negative number value not supported in selector-native" );
 550         }
 551
 552         assert.t( "Non-ASCII identifier", "span[lang=中文]", [ "台北" ] );
 553
 554         assert.t( "input[type=text]", "#form input[type=text]", [ "text1", "text2", "hidden2", "name" ] );
 555         assert.t( "input[type=search]", "#form input[type=search]", [ "search" ] );
 556
 557         withScript = supportjQuery( "<div><span><script src=''></script></span></div>" );
 558         assert.ok( withScript.find( "#moretests script[src]" ).has( "script" ), "script[src] (jQuery #13777)" );
 559
 560         assert.t( "Boolean attribute equals name", "#select2 option[selected='selected']", [ "option2d" ] );
 561         assert.t( "for Attribute in form", "#form [for=action]", [ "label-for" ] );
 562         assert.t( "Grouped Form Elements - name", "input[name='foo[bar]']", [ "hidden2" ] );
 563         assert.t( "Value", "input[value=Test]", [ "text1", "text2" ] );
 564
 565         assert.deepEqual(
 566                 jQuery( "input[data-comma='0,1']" ).get(),
 567                 q( "el12087" ),
 568                 "Without context, single-quoted attribute containing ','" );
 569         assert.deepEqual(
 570                 jQuery( "input[data-comma=\"0,1\"]" ).get(),
 571                 q( "el12087" ),
 572                 "Without context, double-quoted attribute containing ','" );
 573         assert.deepEqual(
 574                 jQuery( "input[data-comma='0,1']", document.getElementById( "t12087" ) ).get(),
 575                 q( "el12087" ),
 576                 "With context, single-quoted attribute containing ','" );
 577         assert.deepEqual(
 578                 jQuery( "input[data-comma=\"0,1\"]", document.getElementById( "t12087" ) ).get(),
 579                 q( "el12087" ),
 580                 "With context, double-quoted attribute containing ','" );
 581 } );
 582
 583 QUnit[ QUnit.jQuerySelectors ? "test" : "skip" ]( "attributes - does not equal", function( assert ) {
 584         assert.expect( 2 );
 585
 586         assert.t( "string", "#ap a[hreflang!='en']", [ "google", "groups", "anchor1" ] );
 587         assert.t( "Empty values", "#select1 option[value!='']", [ "option1b", "option1c", "option1d" ] );
 588 } );
 589
 590 QUnit.test( "attributes - starts with", function( assert ) {
 591         assert.expect( 4 );
 592
 593         assert.t( "string (whitespace ignored)", "a[href ^= 'https://www']", [ "google", "yahoo" ] );
 594         assert.t( "href starts with hash", "p a[href^='#']", [ "anchor2" ] );
 595         assert.t( "string containing '['", "input[name^='foo[']", [ "hidden2" ] );
 596         assert.t( "string containing '[' ... ']'", "input[name^='foo[bar]']", [ "hidden2" ] );
 597 } );
 598
 599 QUnit.test( "attributes - contains", function( assert ) {
 600         assert.expect( 4 );
 601
 602         assert.t( "string (whitespace ignored)", "a[href *= 'google']", [ "google", "groups" ] );
 603         assert.t( "string like '[' ... ']']", "input[name*='[bar]']", [ "hidden2" ] );
 604         assert.t( "string containing '['...']", "input[name*='foo[bar]']", [ "hidden2" ] );
 605         assert.t( "href contains hash", "p a[href*='#']", [ "simon1", "anchor2" ] );
 606 } );
 607
 608 QUnit.test( "attributes - ends with", function( assert ) {
 609         assert.expect( 4 );
 610
 611         assert.t( "string (whitespace ignored)", "a[href $= 'org/']", [ "mark" ] );
 612         assert.t( "string ending with ']'", "input[name$='bar]']", [ "hidden2" ] );
 613         assert.t( "string like '[' ... ']'", "input[name$='[bar]']", [ "hidden2" ] );
 614         assert.t( "Attribute containing []", "input[name$='foo[bar]']", [ "hidden2" ] );
 615 } );
 616
 617 QUnit.test( "attributes - whitespace list includes", function( assert ) {
 618         assert.expect( 3 );
 619
 620         assert.t( "string found at the beginning",
 621                 "input[data-15233~='foo']",
 622                 [ "t15233-single", "t15233-double", "t15233-double-tab", "t15233-double-nl", "t15233-triple" ] );
 623         assert.t( "string found in the middle",
 624                 "input[data-15233~='bar']",
 625                 [ "t15233-double", "t15233-double-tab", "t15233-double-nl", "t15233-triple" ] );
 626         assert.t( "string found at the end", "input[data-15233~='baz']", [ "t15233-triple" ] );
 627 } );
 628
 629 QUnit.test( "attributes - hyphen-prefix matches", function( assert ) {
 630         assert.expect( 3 );
 631
 632         assert.t( "string", "#names-group span[id|='name']", [ "name-is-example", "name-is-div" ] );
 633         assert.t( "string containing hyphen",
 634                 "#names-group span[id|='name-is']",
 635                 [ "name-is-example", "name-is-div" ] );
 636         assert.t( "string ending with hyphen", "#names-group span[id|='name-is-']", [] );
 637 } );
 638
 639 QUnit.test( "attributes - special characters", function( assert ) {
 640         assert.expect( 16 );
 641
 642         var attrbad;
 643         var div = document.createElement( "div" );
 644
 645         // trac-3279
 646         div.innerHTML = "<div id='foo' xml:test='something'></div>";
 647         assert.deepEqual( jQuery( "[xml\\:test]", div ).get(),
 648                 [ div.firstChild ],
 649                 "attribute name containing colon" );
 650
 651         // Make sure attribute value quoting works correctly.
 652         // See jQuery trac-6093; trac-6428; trac-13894.
 653         // Use seeded results to bypass querySelectorAll optimizations.
 654         attrbad = jQuery(
 655                 "<input type='hidden' id='attrbad_space' name='foo bar'/>" +
 656                 "<input type='hidden' id='attrbad_dot' value='2' name='foo.baz'/>" +
 657                 "<input type='hidden' id='attrbad_brackets' value='2' name='foo[baz]'/>" +
 658                 "<input type='hidden' id='attrbad_leading_digits' name='agent' value='007'/>" +
 659                 "<input type='hidden' id='attrbad_injection' data-attr='foo_baz&#39;]'/>" +
 660                 "<input type='hidden' id='attrbad_quote' data-attr='&#39;'/>" +
 661                 "<input type='hidden' id='attrbad_backslash' data-attr='&#92;'/>" +
 662                 "<input type='hidden' id='attrbad_backslash_quote' data-attr='&#92;&#39;'/>" +
 663                 "<input type='hidden' id='attrbad_backslash_backslash' data-attr='&#92;&#92;'/>" +
 664                 "<input type='hidden' id='attrbad_unicode' data-attr='&#x4e00;'/>"
 665         ).appendTo( "#qunit-fixture" ).get();
 666
 667
 668         assert.deepEqual( jQuery( attrbad ).filter( "input[name=foo\\ bar]" ).get(),
 669                 q( "attrbad_space" ),
 670                 "identifier containing space" );
 671         assert.deepEqual( jQuery( attrbad ).filter( "input[name=foo\\.baz]" ).get(),
 672                 q( "attrbad_dot" ),
 673                 "identifier containing dot" );
 674         assert.deepEqual( jQuery( attrbad ).filter( "input[name=foo\\[baz\\]]" ).get(),
 675                 q( "attrbad_brackets" ),
 676                 "identifier containing brackets" );
 677         assert.deepEqual( jQuery( attrbad ).filter( "input[data-attr='foo_baz\\']']" ).get(),
 678                 q( "attrbad_injection" ),
 679                 "string containing quote and right bracket" );
 680
 681         assert.deepEqual( jQuery( attrbad ).filter( "input[value=\\30 \\30\\37 ]" ).get(),
 682                 q( "attrbad_leading_digits" ),
 683                 "identifier containing escaped leading digits with whitespace termination" );
 684         assert.deepEqual( jQuery( attrbad ).filter( "input[value=\\00003007]" ).get(),
 685                 q( "attrbad_leading_digits" ),
 686                 "identifier containing escaped leading digits without whitespace termination" );
 687
 688         assert.deepEqual( jQuery( attrbad ).filter( "input[data-attr='\\'']" ).get(),
 689                 q( "attrbad_quote" ),
 690                 "string containing quote" );
 691         assert.deepEqual( jQuery( attrbad ).filter( "input[data-attr='\\\\']" ).get(),
 692                 q( "attrbad_backslash" ),
 693                 "string containing backslash" );
 694         assert.deepEqual( jQuery( attrbad ).filter( "input[data-attr='\\\\\\'']" ).get(),
 695                 q( "attrbad_backslash_quote" ),
 696                 "string containing backslash and quote" );
 697         assert.deepEqual( jQuery( attrbad ).filter( "input[data-attr='\\\\\\\\']" ).get(),
 698                 q( "attrbad_backslash_backslash" ),
 699                 "string containing adjacent backslashes" );
 700
 701         assert.deepEqual( jQuery( attrbad ).filter( "input[data-attr='\\5C\\\\']" ).get(),
 702                 q( "attrbad_backslash_backslash" ),
 703                 "string containing numeric-escape backslash and backslash" );
 704         assert.deepEqual( jQuery( attrbad ).filter( "input[data-attr='\\5C \\\\']" ).get(),
 705                 q( "attrbad_backslash_backslash" ),
 706                 "string containing numeric-escape-with-trailing-space backslash and backslash" );
 707         assert.deepEqual( jQuery( attrbad ).filter( "input[data-attr='\\5C\t\\\\']" ).get(),
 708                 q( "attrbad_backslash_backslash" ),
 709                 "string containing numeric-escape-with-trailing-tab backslash and backslash" );
 710         assert.deepEqual( jQuery( attrbad ).filter( "input[data-attr='\\04e00']" ).get(),
 711                 q( "attrbad_unicode" ),
 712                 "Long numeric escape (BMP)" );
 713
 714         document.getElementById( "attrbad_unicode" ).setAttribute( "data-attr", "\uD834\uDF06A" );
 715         assert.deepEqual( jQuery( attrbad ).filter( "input[data-attr='\\01D306A']" ).get(),
 716                 q( "attrbad_unicode" ),
 717                 "Long numeric escape (non-BMP)" );
 718 } );
 719
 720 QUnit.test( "attributes - others", function( assert ) {
 721         assert.expect( 14 );
 722
 723         var div = document.getElementById( "foo" );
 724
 725         assert.t( "Find elements with a tabindex attribute", "[tabindex]", [ "listWithTabIndex", "foodWithNegativeTabIndex", "linkWithTabIndex", "linkWithNegativeTabIndex", "linkWithNoHrefWithTabIndex", "linkWithNoHrefWithNegativeTabIndex" ] );
 726
 727         assert.t( "Selector list with multiple quoted attribute-equals",
 728                 "#form input[type='radio'], #form input[type='hidden']",
 729                 [ "radio1", "radio2", "hidden1" ] );
 730         assert.t( "Selector list with differently-quoted attribute-equals",
 731                 "#form input[type='radio'], #form input[type=\"hidden\"]",
 732                 [ "radio1", "radio2", "hidden1" ] );
 733         assert.t( "Selector list with quoted and unquoted attribute-equals",
 734                 "#form input[type='radio'], #form input[type=hidden]",
 735                 [ "radio1", "radio2", "hidden1" ] );
 736
 737         assert.t( "Object.prototype property \"constructor\" (negative)", "[constructor]", [] );
 738         assert.t( "Gecko Object.prototype property \"watch\" (negative)", "[watch]", [] );
 739         div.setAttribute( "constructor", "foo" );
 740         div.setAttribute( "watch", "bar" );
 741         assert.t( "Object.prototype property \"constructor\"", "[constructor='foo']", [ "foo" ] );
 742         assert.t( "Gecko Object.prototype property \"watch\"", "[watch='bar']", [ "foo" ] );
 743
 744         // #11115
 745         assert.ok( jQuery( "<input type='checkbox' checked='checked'/>" ).prop( "checked", false ).is( "[checked]" ),
 746                 "[checked] selects by attribute (positive)"
 747         );
 748         assert.ok( !jQuery( "<input type='checkbox'/>" ).prop( "checked", true ).is( "[checked]" ),
 749                 "[checked] selects by attribute (negative)"
 750         );
 751
 752         assert.t( "empty name", "[name='']", [ "name-empty" ] );
 753         assert.t( "prefixed empty name", "#empty-name-parent [name='']", [ "name-empty" ] );
 754
 755         var emptyNameContainer = jQuery( ".empty-name-container" );
 756         assert.deepEqual( emptyNameContainer.find( "[name='']" ).get(),
 757                 q( "name-empty" ),
 758                 "empty name with context" );
 759         assert.deepEqual( emptyNameContainer.find( "#empty-name-parent [name='']" ).get(),
 760                 q( "name-empty" ),
 761                 "prefixed empty name with context" );
 762 } );
 763
 764 QUnit.test( "pseudo - (parent|empty)", function( assert ) {
 765         assert.expect( 3 );
 766         assert.t( "Empty", "#qunit-fixture ul:empty", [ "firstUL" ] );
 767         assert.t( "Empty with comment node", "#qunit-fixture ol:empty", [ "empty" ] );
 768
 769         if ( QUnit.jQuerySelectors ) {
 770                 assert.t( "Is A Parent", "#qunit-fixture p:parent",
 771                         [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
 772         } else {
 773                 assert.ok( "skip", ":parent not supported in selector-native" );
 774         }
 775 } );
 776
 777 QUnit.test( "pseudo - (first|last|only)-(child|of-type)", function( assert ) {
 778         assert.expect( 12 );
 779
 780         assert.t( "First Child", "#qunit-fixture p:first-child", [ "firstp", "sndp" ] );
 781         assert.t( "First Child (leading id)", "#qunit-fixture p:first-child", [ "firstp", "sndp" ] );
 782         assert.t( "First Child (leading class)", ".nothiddendiv div:first-child", [ "nothiddendivchild" ] );
 783         assert.t( "First Child (case-insensitive)", "#qunit-fixture p:FIRST-CHILD", [ "firstp", "sndp" ] );
 784
 785         assert.t( "Last Child", "#qunit-fixture p:last-child", [ "sap" ] );
 786         assert.t( "Last Child (leading id)", "#qunit-fixture a:last-child", [ "simon1", "anchor1", "mark", "yahoo", "anchor2", "simon", "liveLink1", "liveLink2" ] );
 787
 788         assert.t( "Only Child", "#qunit-fixture a:only-child", [ "simon1", "anchor1", "yahoo", "anchor2", "liveLink1", "liveLink2" ] );
 789
 790         assert.t( "First-of-type", "#qunit-fixture > p:first-of-type", [ "firstp" ] );
 791         assert.t( "Last-of-type", "#qunit-fixture > p:last-of-type", [ "first" ] );
 792         assert.t( "Only-of-type", "#qunit-fixture > :only-of-type", [ "name+value", "firstUL", "empty", "floatTest", "iframe", "table", "last" ] );
 793
 794         // Verify that the child position isn't being cached improperly
 795         var secondChildren = jQuery( "p:nth-child(2)" ).before( "<div></div>" );
 796
 797         assert.t( "No longer second child", "p:nth-child(2)", [] );
 798         secondChildren.prev().remove();
 799         assert.t( "Restored second child", "p:nth-child(2)", [ "ap", "en" ] );
 800 } );
 801
 802 QUnit.test( "pseudo - nth-child", function( assert ) {
 803         assert.expect( 30 );
 804
 805         assert.t( "Nth-child", "p:nth-child(1)", [ "firstp", "sndp" ] );
 806         assert.t( "Nth-child (with whitespace)", "p:nth-child( 1 )", [ "firstp", "sndp" ] );
 807         assert.t( "Nth-child (case-insensitive)", "#form #select1 option:NTH-child(3)", [ "option1c" ] );
 808         assert.t( "Not nth-child", "#qunit-fixture p:not(:nth-child(1))", [ "ap", "en", "sap", "first" ] );
 809
 810         assert.t( "Nth-child(2)", "#qunit-fixture form#form > *:nth-child(2)", [ "text1" ] );
 811         assert.t( "Nth-child(2)", "#qunit-fixture form#form > :nth-child(2)", [ "text1" ] );
 812
 813         assert.t( "Nth-child(-1)", "#form #select1 option:nth-child(-1)", [] );
 814         assert.t( "Nth-child(3)", "#form #select1 option:nth-child(3)", [ "option1c" ] );
 815         assert.t( "Nth-child(0n+3)", "#form #select1 option:nth-child(0n+3)", [ "option1c" ] );
 816         assert.t( "Nth-child(1n+0)", "#form #select1 option:nth-child(1n+0)", [ "option1a", "option1b", "option1c", "option1d" ] );
 817         assert.t( "Nth-child(1n)", "#form #select1 option:nth-child(1n)", [ "option1a", "option1b", "option1c", "option1d" ] );
 818         assert.t( "Nth-child(n)", "#form #select1 option:nth-child(n)", [ "option1a", "option1b", "option1c", "option1d" ] );
 819         assert.t( "Nth-child(even)", "#form #select1 option:nth-child(even)", [ "option1b", "option1d" ] );
 820         assert.t( "Nth-child(odd)", "#form #select1 option:nth-child(odd)", [ "option1a", "option1c" ] );
 821         assert.t( "Nth-child(2n)", "#form #select1 option:nth-child(2n)", [ "option1b", "option1d" ] );
 822         assert.t( "Nth-child(2n+1)", "#form #select1 option:nth-child(2n+1)", [ "option1a", "option1c" ] );
 823         assert.t( "Nth-child(2n + 1)", "#form #select1 option:nth-child(2n + 1)", [ "option1a", "option1c" ] );
 824         assert.t( "Nth-child(+2n + 1)", "#form #select1 option:nth-child(+2n + 1)", [ "option1a", "option1c" ] );
 825         assert.t( "Nth-child(3n)", "#form #select1 option:nth-child(3n)", [ "option1c" ] );
 826         assert.t( "Nth-child(3n+1)", "#form #select1 option:nth-child(3n+1)", [ "option1a", "option1d" ] );
 827         assert.t( "Nth-child(3n+2)", "#form #select1 option:nth-child(3n+2)", [ "option1b" ] );
 828         assert.t( "Nth-child(3n+3)", "#form #select1 option:nth-child(3n+3)", [ "option1c" ] );
 829         assert.t( "Nth-child(3n-1)", "#form #select1 option:nth-child(3n-1)", [ "option1b" ] );
 830         assert.t( "Nth-child(3n-2)", "#form #select1 option:nth-child(3n-2)", [ "option1a", "option1d" ] );
 831         assert.t( "Nth-child(3n-3)", "#form #select1 option:nth-child(3n-3)", [ "option1c" ] );
 832         assert.t( "Nth-child(3n+0)", "#form #select1 option:nth-child(3n+0)", [ "option1c" ] );
 833         assert.t( "Nth-child(-1n+3)", "#form #select1 option:nth-child(-1n+3)", [ "option1a", "option1b", "option1c" ] );
 834         assert.t( "Nth-child(-n+3)", "#form #select1 option:nth-child(-n+3)", [ "option1a", "option1b", "option1c" ] );
 835         assert.t( "Nth-child(-1n + 3)", "#form #select1 option:nth-child(-1n + 3)", [ "option1a", "option1b", "option1c" ] );
 836
 837         if ( QUnit.jQuerySelectors || this.safari ) {
 838                 assert.deepEqual(
 839                         jQuery( [ document.createElement( "a" ) ].concat( q( "ap" ) ) )
 840                                 .filter( ":nth-child(n)" )
 841                                 .get(),
 842                         q( "ap" ),
 843                         "Seeded nth-child"
 844                 );
 845         } else {
 846                 // Support: Chrome 75+, Firefox 67+
 847                 // Some browsers mark disconnected elements as matching `:nth-child(n)`
 848                 // so let's skip the test.
 849                 assert.ok( "skip", "disconnected elements match ':nth-child(n)' in Chrome/Firefox" );
 850         }
 851 } );
 852
 853 QUnit.test( "pseudo - nth-last-child", function( assert ) {
 854         assert.expect( 30 );
 855
 856         jQuery( "#qunit-fixture" ).append( "<form id='nth-last-child-form'></form><i></i><i></i><i></i><i></i>" );
 857         assert.t( "Nth-last-child", "form:nth-last-child(5)", [ "nth-last-child-form" ] );
 858         assert.t( "Nth-last-child (with whitespace)", "form:nth-last-child( 5 )", [ "nth-last-child-form" ] );
 859
 860
 861         assert.t( "Nth-last-child (case-insensitive)", "#form #select1 option:NTH-last-child(3)", [ "option1b" ] );
 862         assert.t( "Not nth-last-child", "#qunit-fixture p:not(:nth-last-child(1))", [ "firstp", "ap", "sndp", "en", "first" ] );
 863
 864         assert.t( "Nth-last-child(-1)", "#form #select1 option:nth-last-child(-1)", [] );
 865         assert.t( "Nth-last-child(3)", "#form #select1 :nth-last-child(3)", [ "option1b" ] );
 866         assert.t( "Nth-last-child(3)", "#form #select1 *:nth-last-child(3)", [ "option1b" ] );
 867         assert.t( "Nth-last-child(3)", "#form #select1 option:nth-last-child(3)", [ "option1b" ] );
 868         assert.t( "Nth-last-child(0n+3)", "#form #select1 option:nth-last-child(0n+3)", [ "option1b" ] );
 869         assert.t( "Nth-last-child(1n+0)", "#form #select1 option:nth-last-child(1n+0)", [ "option1a", "option1b", "option1c", "option1d" ] );
 870         assert.t( "Nth-last-child(1n)", "#form #select1 option:nth-last-child(1n)", [ "option1a", "option1b", "option1c", "option1d" ] );
 871         assert.t( "Nth-last-child(n)", "#form #select1 option:nth-last-child(n)", [ "option1a", "option1b", "option1c", "option1d" ] );
 872         assert.t( "Nth-last-child(even)", "#form #select1 option:nth-last-child(even)", [ "option1a", "option1c" ] );
 873         assert.t( "Nth-last-child(odd)", "#form #select1 option:nth-last-child(odd)", [ "option1b", "option1d" ] );
 874         assert.t( "Nth-last-child(2n)", "#form #select1 option:nth-last-child(2n)", [ "option1a", "option1c" ] );
 875         assert.t( "Nth-last-child(2n+1)", "#form #select1 option:nth-last-child(2n+1)", [ "option1b", "option1d" ] );
 876         assert.t( "Nth-last-child(2n + 1)", "#form #select1 option:nth-last-child(2n + 1)", [ "option1b", "option1d" ] );
 877         assert.t( "Nth-last-child(+2n + 1)", "#form #select1 option:nth-last-child(+2n + 1)", [ "option1b", "option1d" ] );
 878         assert.t( "Nth-last-child(3n)", "#form #select1 option:nth-last-child(3n)", [ "option1b" ] );
 879         assert.t( "Nth-last-child(3n+1)", "#form #select1 option:nth-last-child(3n+1)", [ "option1a", "option1d" ] );
 880         assert.t( "Nth-last-child(3n+2)", "#form #select1 option:nth-last-child(3n+2)", [ "option1c" ] );
 881         assert.t( "Nth-last-child(3n+3)", "#form #select1 option:nth-last-child(3n+3)", [ "option1b" ] );
 882         assert.t( "Nth-last-child(3n-1)", "#form #select1 option:nth-last-child(3n-1)", [ "option1c" ] );
 883         assert.t( "Nth-last-child(3n-2)", "#form #select1 option:nth-last-child(3n-2)", [ "option1a", "option1d" ] );
 884         assert.t( "Nth-last-child(3n-3)", "#form #select1 option:nth-last-child(3n-3)", [ "option1b" ] );
 885         assert.t( "Nth-last-child(3n+0)", "#form #select1 option:nth-last-child(3n+0)", [ "option1b" ] );
 886         assert.t( "Nth-last-child(-1n+3)", "#form #select1 option:nth-last-child(-1n+3)", [ "option1b", "option1c", "option1d" ] );
 887         assert.t( "Nth-last-child(-n+3)", "#form #select1 option:nth-last-child(-n+3)", [ "option1b", "option1c", "option1d" ] );
 888         assert.t( "Nth-last-child(-1n + 3)", "#form #select1 option:nth-last-child(-1n + 3)", [ "option1b", "option1c", "option1d" ] );
 889
 890         if ( QUnit.jQuerySelectors || this.safari ) {
 891                 assert.deepEqual(
 892                         jQuery( [ document.createElement( "a" ) ].concat( q( "ap" ) ) )
 893                                 .filter( ":nth-last-child(n)" )
 894                                 .get(),
 895                         q( "ap" ),
 896                         "Seeded nth-last-child"
 897                 );
 898         } else {
 899                 // Support: Chrome 75+, Firefox 67+
 900                 // Some browsers mark disconnected elements as matching `:nth-last-child(n)`
 901                 // so let's skip the test.
 902                 assert.ok( "skip", "disconnected elements match ':nth-last-child(n)' in Chrome/Firefox" );
 903         }
 904 } );
 905
 906 QUnit.test( "pseudo - nth-of-type", function( assert ) {
 907         assert.expect( 9 );
 908         assert.t( "Nth-of-type(-1)", ":nth-of-type(-1)", [] );
 909         assert.t( "Nth-of-type(3)", "#ap :nth-of-type(3)", [ "mark" ] );
 910         assert.t( "Nth-of-type(n)", "#ap :nth-of-type(n)", [ "google", "groups", "code1", "anchor1", "mark" ] );
 911         assert.t( "Nth-of-type(0n+3)", "#ap :nth-of-type(0n+3)", [ "mark" ] );
 912         assert.t( "Nth-of-type(2n)", "#ap :nth-of-type(2n)", [ "groups" ] );
 913         assert.t( "Nth-of-type(even)", "#ap :nth-of-type(even)", [ "groups" ] );
 914         assert.t( "Nth-of-type(2n+1)", "#ap :nth-of-type(2n+1)", [ "google", "code1", "anchor1", "mark" ] );
 915         assert.t( "Nth-of-type(odd)", "#ap :nth-of-type(odd)", [ "google", "code1", "anchor1", "mark" ] );
 916         assert.t( "Nth-of-type(-n+2)", "#qunit-fixture > :nth-of-type(-n+2)", [ "firstp", "ap", "foo", "nothiddendiv", "name+value", "firstUL", "empty", "form", "floatTest", "iframe", "lengthtest", "table", "last" ] );
 917 } );
 918
 919 QUnit.test( "pseudo - nth-last-of-type", function( assert ) {
 920         assert.expect( 9 );
 921         assert.t( "Nth-last-of-type(-1)", ":nth-last-of-type(-1)", [] );
 922         assert.t( "Nth-last-of-type(3)", "#ap :nth-last-of-type(3)", [ "google" ] );
 923         assert.t( "Nth-last-of-type(n)", "#ap :nth-last-of-type(n)", [ "google", "groups", "code1", "anchor1", "mark" ] );
 924         assert.t( "Nth-last-of-type(0n+3)", "#ap :nth-last-of-type(0n+3)", [ "google" ] );
 925         assert.t( "Nth-last-of-type(2n)", "#ap :nth-last-of-type(2n)", [ "groups" ] );
 926         assert.t( "Nth-last-of-type(even)", "#ap :nth-last-of-type(even)", [ "groups" ] );
 927         assert.t( "Nth-last-of-type(2n+1)", "#ap :nth-last-of-type(2n+1)", [ "google", "code1", "anchor1", "mark" ] );
 928         assert.t( "Nth-last-of-type(odd)", "#ap :nth-last-of-type(odd)", [ "google", "code1", "anchor1", "mark" ] );
 929         assert.t( "Nth-last-of-type(-n+2)", "#qunit-fixture > :nth-last-of-type(-n+2)", [ "ap", "name+value", "first", "firstUL", "empty", "floatTest", "iframe", "table", "testForm", "disabled-tests", "siblingTest", "fx-test-group", "last" ] );
 930 } );
 931
 932 QUnit[ QUnit.jQuerySelectors ? "test" : "skip" ]( "pseudo - has", function( assert ) {
 933         assert.expect( 3 );
 934
 935         assert.t( "Basic test", "p:has(a)", [ "firstp", "ap", "en", "sap" ] );
 936         assert.t( "Basic test (irrelevant whitespace)", "p:has( a )", [ "firstp", "ap", "en", "sap" ] );
 937         assert.t( "Nested with overlapping candidates",
 938                 "#qunit-fixture div:has(div:has(div:not([id])))",
 939                 [ "moretests", "t2037", "fx-test-group", "fx-queue" ] );
 940 } );
 941
 942 QUnit[ QUnit.jQuerySelectors ? "test" : "skip" ]( "pseudo - contains", function( assert ) {
 943         assert.expect( 9 );
 944
 945         var gh335 = document.getElementById( "qunit-fixture" ).appendChild(
 946                 document.createElement( "mark" ) );
 947         gh335.id = "gh-335";
 948         gh335.appendChild( document.createTextNode( "raw line 1\nline 2" ) );
 949
 950         assert.ok( jQuery( "a:contains('')" ).length, "empty string" );
 951         assert.t( "unquoted argument", "a:contains(Google)", [ "google", "groups" ] );
 952         assert.t( "unquoted argument with whitespace", "a:contains(Google Groups)", [ "groups" ] );
 953         assert.t( "quoted argument with whitespace and parentheses",
 954                 "a:contains('Google Groups (Link)')", [ "groups" ] );
 955         assert.t( "quoted argument with double quotes and parentheses",
 956                 "a:contains(\"(Link)\")", [ "groups" ] );
 957         assert.t( "unquoted argument with whitespace and paired parentheses",
 958                 "a:contains(Google Groups (Link))", [ "groups" ] );
 959         assert.t( "unquoted argument with paired parentheses", "a:contains((Link))", [ "groups" ] );
 960         assert.t( "quoted argument with CSS escapes",
 961                 "span:contains(\"\\\"'\\53F0 \\5317 Ta\\301 ibe\\30C i\")",
 962                 [ "utf8class1" ] );
 963
 964         assert.t( "collapsed whitespace", "mark:contains('line 1\\A line')", [ "gh-335" ] );
 965 } );
 966
 967 QUnit.test( "pseudo - misc", function( assert ) {
 968         assert.expect( 32 );
 969
 970         var select, tmp, input;
 971
 972         jQuery( "<h1 id='h1'></h1><h2 id='h2'></h2><h2 id='h2-2'></h2>" ).prependTo( "#qunit-fixture" );
 973
 974         if ( QUnit.jQuerySelectors ) {
 975                 assert.t( "Headers", "#qunit-fixture :header", [ "h1", "h2", "h2-2" ] );
 976                 assert.t( "Headers(case-insensitive)", "#qunit-fixture :Header", [ "h1", "h2", "h2-2" ] );
 977         } else {
 978                 assert.ok( "skip", ":header not supported in selector-native" );
 979                 assert.ok( "skip", ":header not supported in selector-native" );
 980         }
 981
 982         if ( QUnit.jQuerySelectors ) {
 983                 assert.t( "Multiple matches with the same context (cache check)",
 984                         "#form select:has(option:first-child:contains('o'))",
 985                         [ "select1", "select2", "select3", "select4" ]
 986                 );
 987                 assert.ok( jQuery( "#qunit-fixture :not(:has(:has(*)))" ).length, "All not grandparents" );
 988
 989                 select = document.getElementById( "select1" );
 990                 assert.ok( jQuery( select ).is( ":has(option)" ), "Has Option Matches" );
 991         } else {
 992                 assert.ok( "skip", ":has not supported in selector-native" );
 993                 assert.ok( "skip", ":has not supported in selector-native" );
 994                 assert.ok( "skip", ":has not supported in selector-native" );
 995         }
 996
 997         tmp = document.createElement( "div" );
 998         tmp.id = "tmp_input";
 999         document.body.appendChild( tmp );
1000
1001         jQuery.each( [ "button", "submit", "reset" ], function( i, type ) {
1002                 var els = jQuery(
1003                         "<input id='input_%' type='%'/><button id='button_%' type='%'>test</button>"
1004                                 .replace( /%/g, type )
1005                 ).appendTo( tmp );
1006
1007                 if ( QUnit.jQuerySelectors ) {
1008                         assert.t( "Input Buttons :" + type, "#tmp_input :" + type, [ "input_" + type, "button_" + type ] );
1009
1010                         assert.ok( jQuery( els[ 0 ] ).is( ":" + type ), "Input Matches :" + type );
1011                         assert.ok( jQuery( els[ 1 ] ).is( ":" + type ), "Button Matches :" + type );
1012                 } else {
1013                         assert.ok( "skip", ":" + type + " not supported in selector-native" );
1014                         assert.ok( "skip", ":" + type + " not supported in selector-native" );
1015                         assert.ok( "skip", ":" + type + " not supported in selector-native" );
1016                 }
1017         } );
1018
1019         document.body.removeChild( tmp );
1020
1021         // Recreate tmp
1022         tmp = document.createElement( "div" );
1023         tmp.id = "tmp_input";
1024         tmp.innerHTML = "<span>Hello I am focusable.</span>";
1025         // Setting tabIndex should make the element focusable
1026         // https://html.spec.whatwg.org/#the-tabindex-attribute
1027         document.body.appendChild( tmp );
1028         tmp.tabIndex = 0;
1029         tmp.focus();
1030         if ( document.activeElement !== tmp || ( document.hasFocus && !document.hasFocus() ) ||
1031                 ( document.querySelectorAll && !document.querySelectorAll( "div:focus" ).length ) ) {
1032                 assert.ok( true, "The div was not focused. Skip checking the :focus match." );
1033                 assert.ok( true, "The div was not focused. Skip checking the :focus match." );
1034         } else {
1035                 assert.t( "tabIndex element focused", ":focus", [ "tmp_input" ] );
1036                 assert.ok( jQuery( tmp ).is( ":focus" ), ":focus matches tabIndex div" );
1037         }
1038
1039         // Blur tmp
1040         tmp.blur();
1041         document.body.focus();
1042         assert.ok( !jQuery( tmp ).is( ":focus" ), ":focus doesn't match tabIndex div" );
1043         document.body.removeChild( tmp );
1044
1045         // Input focus/active
1046         input = document.createElement( "input" );
1047         input.type = "text";
1048         input.id = "focus-input";
1049
1050         document.body.appendChild( input );
1051         input.focus();
1052
1053         // Inputs can't be focused unless the document has focus
1054         if ( document.activeElement !== input || ( document.hasFocus && !document.hasFocus() ) ||
1055                 ( document.querySelectorAll && !document.querySelectorAll( "input:focus" ).length ) ) {
1056                 assert.ok( true, "The input was not focused. Skip checking the :focus match." );
1057                 assert.ok( true, "The input was not focused. Skip checking the :focus match." );
1058         } else {
1059                 assert.t( "Element focused", "input:focus", [ "focus-input" ] );
1060                 assert.ok( jQuery( input ).is( ":focus" ), ":focus matches" );
1061         }
1062
1063         input.blur();
1064
1065         // When IE is out of focus, blur does not work. Force it here.
1066         if ( document.activeElement === input ) {
1067                 document.body.focus();
1068         }
1069
1070         assert.ok( !jQuery( input ).is( ":focus" ), ":focus doesn't match" );
1071         document.body.removeChild( input );
1072
1073
1074         assert.deepEqual(
1075                 jQuery( "[id='select1'] *:not(:last-child), [id='select2'] *:not(:last-child)", q( "qunit-fixture" )[ 0 ] ).get(),
1076                 q( "option1a", "option1b", "option1c", "option2a", "option2b", "option2c" ),
1077                 "caching system tolerates recursive selection"
1078         );
1079
1080         if ( QUnit.jQuerySelectors ) {
1081                 // Tokenization edge cases
1082                 assert.t( "Sequential pseudos", "#qunit-fixture p:has(:contains(mark)):has(code)", [ "ap" ] );
1083                 assert.t( "Sequential pseudos", "#qunit-fixture p:has(:contains(mark)):has(code):contains(This link)", [ "ap" ] );
1084
1085                 assert.t( "Pseudo argument containing ')'", "p:has(>a.GROUPS[src!=')'])", [ "ap" ] );
1086                 assert.t( "Pseudo argument containing ')'", "p:has(>a.GROUPS[src!=')'])", [ "ap" ] );
1087                 assert.t( "Pseudo followed by token containing ')'", "p:contains(id=\"foo\")[id!=\\)]", [ "sndp" ] );
1088                 assert.t( "Pseudo followed by token containing ')'", "p:contains(id=\"foo\")[id!=')']", [ "sndp" ] );
1089
1090                 assert.t( "Multi-pseudo", "#ap:has(*), #ap:has(*)", [ "ap" ] );
1091                 assert.t( "Multi-pseudo with leading nonexistent id", "#nonexistent:has(*), #ap:has(*)", [ "ap" ] );
1092
1093                 assert.t( "Tokenization stressor", "a[class*=blog]:not(:has(*, :contains(!)), :contains(!)), br:contains(]), p:contains(]):not(.qunit-source), :not(:empty):not(:parent):not(.qunit-source)", [ "ap", "mark", "yahoo", "simon" ] );
1094         } else {
1095                 assert.ok( "skip", ":has not supported in selector-native" );
1096                 assert.ok( "skip", ":has not supported in selector-native" );
1097
1098                 assert.ok( "skip", ":has not supported in selector-native" );
1099                 assert.ok( "skip", ":has not supported in selector-native" );
1100                 assert.ok( "skip", ":contains not supported in selector-native" );
1101                 assert.ok( "skip", ":contains not supported in selector-native" );
1102
1103                 assert.ok( "skip", ":has not supported in selector-native" );
1104                 assert.ok( "skip", ":has supported in selector-native" );
1105
1106                 assert.ok( "skip", ":has not supported in selector-native" );
1107         }
1108
1109         if ( QUnit.jQuerySelectorsPos ) {
1110                 assert.t( "Multi-positional", "#ap:gt(0), #ap:lt(1)", [ "ap" ] );
1111                 assert.t( "Multi-positional with leading nonexistent id", "#nonexistent:gt(0), #ap:lt(1)", [ "ap" ] );
1112         } else {
1113                 assert.ok( "skip", "Positional selectors are not supported" );
1114                 assert.ok( "skip", "Positional selectors are not supported" );
1115         }
1116 } );
1117
1118 QUnit.test( "pseudo - :not", function( assert ) {
1119         assert.expect( 43 );
1120
1121         assert.t( "Not", "a.blog:not(.link)", [ "mark" ] );
1122
1123         if ( QUnit.jQuerySelectors ) {
1124                 assert.t( "Not - multiple", "#form option:not(:contains(Nothing),#option1b,:selected)", [ "option1c", "option1d", "option2b", "option2c", "option3d", "option3e", "option4e", "option5b", "option5c" ] );
1125                 assert.t( "Not - recursive", "#form option:not(:not(:selected))[id^='option3']", [ "option3b", "option3c" ] );
1126         } else {
1127                 assert.ok( "skip", ":contains not supported in selector-native" );
1128                 assert.ok( "skip", ":selected not supported in selector-native" );
1129         }
1130
1131         if ( QUnit.jQuerySelectorsPos ) {
1132                 assert.t( ":not() with :first", "#foo p:not(:first) .link", [ "simon" ] );
1133         } else {
1134                 assert.ok( "skip", "Positional selectors are not supported" );
1135         }
1136
1137         assert.t( ":not() failing interior", "#qunit-fixture p:not(.foo)", [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
1138         assert.t( ":not() failing interior", "#qunit-fixture p:not(#blargh)", [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
1139
1140         if ( QUnit.jQuerySelectors || !QUnit.isIE ) {
1141                 assert.t( ":not() failing interior", "#qunit-fixture p:not(div.foo)", [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
1142                 assert.t( ":not() failing interior", "#qunit-fixture p:not(p.foo)", [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
1143                 assert.t( ":not() failing interior", "#qunit-fixture p:not(div#blargh)", [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
1144                 assert.t( ":not() failing interior", "#qunit-fixture p:not(p#blargh)", [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
1145         } else {
1146                 // Support: IE 11+
1147                 // IE doesn't support `:not(complex selector)`.
1148                 assert.ok( "skip", ":not(complex selector) not supported in selector-native" );
1149                 assert.ok( "skip", ":not(complex selector) not supported in selector-native" );
1150                 assert.ok( "skip", ":not(complex selector) not supported in selector-native" );
1151                 assert.ok( "skip", ":not(complex selector) not supported in selector-native" );
1152         }
1153
1154         assert.t( ":not Multiple", "#qunit-fixture p:not(a)", [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
1155         assert.t( ":not Multiple", "#qunit-fixture p:not( a )", [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
1156         assert.t( ":not Multiple", "#qunit-fixture p:not( p )", [] );
1157         assert.t( ":not Multiple", "p:not(p)", [] );
1158
1159         if ( QUnit.jQuerySelectors || !QUnit.isIE ) {
1160                 assert.t( ":not Multiple", "#qunit-fixture p:not(a, b)", [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
1161                 assert.t( ":not Multiple", "#qunit-fixture p:not(a, b, div)", [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
1162                 assert.t( ":not Multiple", "p:not(a,p)", [] );
1163                 assert.t( ":not Multiple", "p:not(p,a)", [] );
1164                 assert.t( ":not Multiple", "p:not(a,p,b)", [] );
1165         } else {
1166                 // Support: IE 11+
1167                 // IE doesn't support `:not(complex selector)`.
1168                 assert.ok( "skip", ":not(complex selector) not supported in selector-native" );
1169                 assert.ok( "skip", ":not(complex selector) not supported in selector-native" );
1170                 assert.ok( "skip", ":not(complex selector) not supported in selector-native" );
1171                 assert.ok( "skip", ":not(complex selector) not supported in selector-native" );
1172                 assert.ok( "skip", ":not(complex selector) not supported in selector-native" );
1173         }
1174
1175         if ( QUnit.jQuerySelectors ) {
1176                 assert.t( ":not Multiple", ":input:not(:image,:input,:submit)", [] );
1177                 assert.t( ":not Multiple", "#qunit-fixture p:not(:has(a), :nth-child(1))", [ "first" ] );
1178         } else {
1179                 assert.ok( "skip", ":image, :input, :submit not supported in selector-native" );
1180                 assert.ok( "skip", ":has not supported in selector-native" );
1181         }
1182
1183         assert.t( "No element not selector", ".container div:not(.excluded) div", [] );
1184
1185         assert.t( ":not() Existing attribute", "#form select:not([multiple])", [ "select1", "select2", "select5" ] );
1186         assert.t( ":not() Equals attribute", "#form select:not([name=select1])", [ "select2", "select3", "select4", "select5" ] );
1187         assert.t( ":not() Equals quoted attribute", "#form select:not([name='select1'])", [ "select2", "select3", "select4", "select5" ] );
1188
1189         assert.t( ":not() Multiple Class", "#foo a:not(.blog)", [ "yahoo", "anchor2" ] );
1190         assert.t( ":not() Multiple Class", "#foo a:not(.link)", [ "yahoo", "anchor2" ] );
1191
1192         if ( QUnit.jQuerySelectors || !QUnit.isIE ) {
1193                 assert.t( ":not() Multiple Class", "#foo a:not(.blog.link)", [ "yahoo", "anchor2" ] );
1194         } else {
1195                 // Support: IE 11+
1196                 // IE doesn't support `:not(complex selector)`.
1197                 assert.ok( "skip", ":not(complex selector) not supported in selector-native" );
1198         }
1199
1200         if ( QUnit.jQuerySelectors ) {
1201                 assert.t( ":not chaining (compound)", "#qunit-fixture div[id]:not(:has(div, span)):not(:has(*))", [ "nothiddendivchild", "divWithNoTabIndex", "fx-tests" ] );
1202                 assert.t( ":not chaining (with attribute)", "#qunit-fixture form[id]:not([action$='formaction']):not(:button)", [ "lengthtest", "name-tests", "testForm", "disabled-tests" ] );
1203                 assert.t( ":not chaining (colon in attribute)", "#qunit-fixture form[id]:not([action='form:action']):not(:button)", [ "form", "lengthtest", "name-tests", "testForm", "disabled-tests" ] );
1204                 assert.t( ":not chaining (colon in attribute and nested chaining)", "#qunit-fixture form[id]:not([action='form:action']:button):not(:input)", [ "form", "lengthtest", "name-tests", "testForm", "disabled-tests" ] );
1205                 assert.t( ":not chaining", "#form select:not(.select1):contains(Nothing) > option:not(option)", [] );
1206         } else {
1207                 assert.ok( "skip", ":has not supported in selector-native" );
1208                 assert.ok( "skip", ":button not supported in selector-native" );
1209                 assert.ok( "skip", ":button not supported in selector-native" );
1210                 assert.ok( "skip", ":button not supported in selector-native" );
1211                 assert.ok( "skip", ":contains not supported in selector-native" );
1212         }
1213
1214         if ( QUnit.jQuerySelectorsPos ) {
1215                 assert.t( "positional :not()", "#foo p:not(:last)", [ "sndp", "en" ] );
1216                 assert.t( "positional :not() prefix", "#foo p:not(:last) a", [ "yahoo" ] );
1217                 assert.t( "compound positional :not()", "#foo p:not(:first, :last)", [ "en" ] );
1218                 assert.t( "compound positional :not()", "#foo p:not(:first, :even)", [ "en" ] );
1219                 assert.t( "compound positional :not()", "#foo p:not(:first, :odd)", [ "sap" ] );
1220                 assert.t( "reordered compound positional :not()", "#foo p:not(:odd, :first)", [ "sap" ] );
1221
1222                 assert.t( "positional :not() with pre-filter", "#foo p:not([id]:first)", [ "en", "sap" ] );
1223                 assert.t( "positional :not() with post-filter", "#foo p:not(:first[id])", [ "en", "sap" ] );
1224                 assert.t( "positional :not() with pre-filter", "#foo p:not([lang]:first)", [ "sndp", "sap" ] );
1225                 assert.t( "positional :not() with post-filter", "#foo p:not(:first[lang])", [ "sndp", "en", "sap" ] );
1226         } else {
1227                 assert.ok( "skip", "Positional selectors are not supported" );
1228                 assert.ok( "skip", "Positional selectors are not supported" );
1229                 assert.ok( "skip", "Positional selectors are not supported" );
1230                 assert.ok( "skip", "Positional selectors are not supported" );
1231                 assert.ok( "skip", "Positional selectors are not supported" );
1232                 assert.ok( "skip", "Positional selectors are not supported" );
1233
1234                 assert.ok( "skip", "Positional selectors are not supported" );
1235                 assert.ok( "skip", "Positional selectors are not supported" );
1236                 assert.ok( "skip", "Positional selectors are not supported" );
1237                 assert.ok( "skip", "Positional selectors are not supported" );
1238         }
1239 } );
1240
1241 QUnit[ QUnit.jQuerySelectorsPos ? "test" : "skip" ]( "pseudo - position", function( assert ) {
1242         assert.expect( 34 );
1243
1244         assert.t( "First element", "#qunit-fixture p:first", [ "firstp" ] );
1245         assert.t( "First element(case-insensitive)", "#qunit-fixture p:fiRst", [ "firstp" ] );
1246         assert.t( "nth Element", "#qunit-fixture p:nth(1)", [ "ap" ] );
1247         assert.t( "First Element", "#qunit-fixture p:first", [ "firstp" ] );
1248         assert.t( "Last Element", "p:last", [ "first" ] );
1249         assert.t( "Even Elements", "#qunit-fixture p:even", [ "firstp", "sndp", "sap" ] );
1250         assert.t( "Odd Elements", "#qunit-fixture p:odd", [ "ap", "en", "first" ] );
1251         assert.t( "Position Equals", "#qunit-fixture p:eq(1)", [ "ap" ] );
1252         assert.t( "Position Equals (negative)", "#qunit-fixture p:eq(-1)", [ "first" ] );
1253         assert.t( "Position Greater Than", "#qunit-fixture p:gt(0)", [ "ap", "sndp", "en", "sap", "first" ] );
1254         assert.t( "Position Less Than", "#qunit-fixture p:lt(3)", [ "firstp", "ap", "sndp" ] );
1255         assert.t( "Position Less Than Big Number", "#qunit-fixture p:lt(9007199254740991)", [ "firstp", "ap", "sndp", "en", "sap", "first" ] );
1256
1257         assert.t( "Check position filtering", "div#nothiddendiv:eq(0)", [ "nothiddendiv" ] );
1258         assert.t( "Check position filtering", "div#nothiddendiv:last", [ "nothiddendiv" ] );
1259         assert.t( "Check position filtering", "div#nothiddendiv:not(:gt(0))", [ "nothiddendiv" ] );
1260         assert.t( "Check position filtering", "#foo > :not(:first)", [ "en", "sap" ] );
1261         assert.t( "Check position filtering", "#qunit-fixture select > :not(:gt(2))", [ "option1a", "option1b", "option1c" ] );
1262         assert.t( "Check position filtering", "#qunit-fixture select:lt(2) :not(:first)", [ "option1b", "option1c", "option1d", "option2a", "option2b", "option2c", "option2d" ] );
1263         assert.t( "Check position filtering", "div.nothiddendiv:eq(0)", [ "nothiddendiv" ] );
1264         assert.t( "Check position filtering", "div.nothiddendiv:last", [ "nothiddendiv" ] );
1265         assert.t( "Check position filtering", "div.nothiddendiv:not(:lt(0))", [ "nothiddendiv" ] );
1266
1267         assert.t( "Check element position", "#qunit-fixture div div:eq(0)", [ "nothiddendivchild" ] );
1268         assert.t( "Check element position", "#select1 option:eq(3)", [ "option1d" ] );
1269         assert.t( "Check element position", "#qunit-fixture div div:eq(10)", [ "no-clone-exception" ] );
1270         assert.t( "Check element position", "#qunit-fixture div div:first", [ "nothiddendivchild" ] );
1271         assert.t( "Check element position", "#qunit-fixture div > div:first", [ "nothiddendivchild" ] );
1272         assert.t( "Check element position", "#qunit-fixture div:first a:first", [ "yahoo" ] );
1273         assert.t( "Check element position", "#qunit-fixture div:first > p:first", [ "sndp" ] );
1274         assert.t( "Check element position", "div#nothiddendiv:first > div:first", [ "nothiddendivchild" ] );
1275         assert.t( "Chained pseudo after a pos pseudo", "#listWithTabIndex li:eq(0):contains(Rice)", [ "foodWithNegativeTabIndex" ] );
1276
1277         assert.t( "Check sort order with POS and comma", "#qunit-fixture em>em>em>em:first-child,div>em:first", [ "siblingfirst", "siblinggreatgrandchild" ] );
1278
1279         assert.t( "Isolated position", "#qunit-fixture :last", [ "last" ] );
1280
1281         assert.deepEqual(
1282                 jQuery( "#qunit-fixture > p" ).filter( "*:lt(2) + *" ).get(),
1283                 q( "ap" ),
1284                 "Seeded pos with trailing relative" );
1285
1286         // jQuery #12526
1287         var context = jQuery( "#qunit-fixture" ).append( "<div id='jquery12526'></div>" )[ 0 ];
1288         assert.deepEqual( jQuery( ":last", context ).get(), q( "jquery12526" ),
1289                 "Post-manipulation positional" );
1290 } );
1291
1292 QUnit.test( "pseudo - form", function( assert ) {
1293         assert.expect( 16 );
1294
1295         var extraTexts = jQuery( "<input id=\"impliedText\"/><input id=\"capitalText\" type=\"TEXT\">" ).appendTo( "#form" );
1296
1297         if ( QUnit.jQuerySelectors ) {
1298                 assert.t( "Form element :radio", "#form :radio", [ "radio1", "radio2" ] );
1299                 assert.t( "Form element :checkbox", "#form :checkbox", [ "check1", "check2" ] );
1300                 assert.t( "Form element :text", "#form :text", [ "text1", "text2", "hidden2", "name", "impliedText", "capitalText" ] );
1301                 assert.t( "Form element :radio:checked", "#form :radio:checked", [ "radio2" ] );
1302                 assert.t( "Form element :checkbox:checked", "#form :checkbox:checked", [ "check1" ] );
1303                 assert.t( "Form element :radio:checked, :checkbox:checked", "#form :radio:checked, #form :checkbox:checked", [ "radio2", "check1" ] );
1304         } else {
1305                 assert.ok( "skip", ":radio not supported in selector-native" );
1306                 assert.ok( "skip", ":checkbox not supported in selector-native" );
1307                 assert.ok( "skip", ":text not supported in selector-native" );
1308                 assert.ok( "skip", ":radio not supported in selector-native" );
1309                 assert.ok( "skip", ":checkbox not supported in selector-native" );
1310                 assert.ok( "skip", ":radio not supported in selector-native" );
1311         }
1312
1313         if ( QUnit.jQuerySelectors ) {
1314                 assert.t( "Selected option element",
1315                         "#form option:selected",
1316                         [ "option1a", "option2d", "option3b", "option3c", "option4b", "option4c", "option4d",
1317                                 "option5a" ] );
1318                 assert.t( "Select options via :selected", "#select1 option:selected", [ "option1a" ] );
1319                 assert.t( "Select options via :selected", "#select2 option:selected", [ "option2d" ] );
1320                 assert.t( "Select options via :selected", "#select3 option:selected", [ "option3b", "option3c" ] );
1321                 assert.t( "Select options via :selected", "select[name='select2'] option:selected", [ "option2d" ] );
1322         } else {
1323                 assert.ok( "skip", ":selected not supported in selector-native" );
1324                 assert.ok( "skip", ":selected not supported in selector-native" );
1325                 assert.ok( "skip", ":selected not supported in selector-native" );
1326                 assert.ok( "skip", ":selected not supported in selector-native" );
1327                 assert.ok( "skip", ":selected not supported in selector-native" );
1328         }
1329
1330         if ( QUnit.jQuerySelectors ) {
1331                 assert.t( "Form element :input", "#form :input", [ "text1", "text2", "radio1", "radio2", "check1", "check2", "hidden1", "hidden2", "name", "search", "button", "area1", "select1", "select2", "select3", "select4", "select5", "impliedText", "capitalText" ] );
1332
1333                 // trac-12600
1334                 assert.ok(
1335                         jQuery( "<select value='12600'><option value='option' selected='selected'></option><option value=''></option></select>" )
1336                                 .prop( "value", "option" )
1337                                 .is( ":input[value='12600']" ),
1338
1339                         ":input[value=foo] selects select by attribute"
1340                 );
1341                 assert.ok( jQuery( "<input type='text' value='12600'/>" ).prop( "value", "option" ).is( ":input[value='12600']" ),
1342                         ":input[value=foo] selects text input by attribute"
1343                 );
1344         } else {
1345                 assert.ok( "skip", ":input not supported in selector-native" );
1346                 assert.ok( "skip", ":input not supported in selector-native" );
1347                 assert.ok( "skip", ":input not supported in selector-native" );
1348         }
1349
1350         assert.t( "Selected option elements are also :checked", "#form option:checked",
1351                 [ "option1a", "option2d", "option3b", "option3c", "option4b", "option4c", "option4d",
1352                         "option5a" ] );
1353         assert.t( "Hidden inputs are still :enabled",
1354                 "#hidden1:enabled",
1355                 [ "hidden1" ] );
1356
1357         extraTexts.remove();
1358 } );
1359
1360 QUnit.test( "pseudo - :(dis|en)abled, explicitly disabled", function( assert ) {
1361         assert.expect( 2 );
1362
1363         // Set a meaningless disabled property on a common ancestor
1364         var container = document.getElementById( "disabled-tests" );
1365         container.disabled = true;
1366
1367         // Support: IE 6 - 11
1368         // Unset the property where it is not meaningless
1369         if ( document.getElementById( "enabled-input" ).isDisabled ) {
1370                 container.disabled = undefined;
1371         }
1372
1373         assert.t(
1374                 "Explicitly disabled elements",
1375                 "#enabled-fieldset :disabled",
1376                 [ "disabled-input", "disabled-textarea", "disabled-button",
1377                         "disabled-select", "disabled-optgroup", "disabled-option" ]
1378         );
1379
1380         if ( QUnit.jQuerySelectors ) {
1381                 assert.t(
1382                         "Enabled elements",
1383                         "#enabled-fieldset :enabled",
1384                         [ "enabled-input", "enabled-textarea", "enabled-button",
1385                                 "enabled-select", "enabled-optgroup", "enabled-option" ]
1386                 );
1387         } else {
1388                 assert.ok( "skip", ":enabled broken in Chrome in selector-native" );
1389         }
1390 } );
1391
1392 QUnit.test( "pseudo - :(dis|en)abled, optgroup and option", function( assert ) {
1393         assert.expect( 2 );
1394
1395         assert.t(
1396                 ":disabled",
1397                 "#disabled-select-inherit :disabled, #enabled-select-inherit :disabled",
1398                 [ "disabled-optgroup-inherit", "disabled-optgroup-option", "en_disabled-optgroup-inherit",
1399                         "en_disabled-optgroup-option" ]
1400         );
1401
1402         assert.t(
1403                 ":enabled",
1404                 "#disabled-select-inherit :enabled, #enabled-select-inherit :enabled",
1405                 [ "enabled-optgroup-inherit", "enabled-optgroup-option", "enabled-select-option" ]
1406         );
1407 } );
1408
1409 QUnit.test( "pseudo - fieldset:(dis|en)abled", function( assert ) {
1410         assert.expect( 2 );
1411
1412         assert.t( "Disabled fieldset", "fieldset:disabled", [ "disabled-fieldset" ] );
1413         assert.t( "Enabled fieldset", "fieldset:enabled", [ "enabled-fieldset" ] );
1414 } );
1415
1416 QUnit.test( "pseudo - :disabled by ancestry", function( assert ) {
1417         assert.expect( 1 );
1418
1419         assert.t(
1420                 "Inputs inherit disabled from fieldset",
1421                 "#disabled-fieldset :disabled",
1422                 [ "disabled-fieldset-input", "disabled-fieldset-textarea",
1423                         "disabled-fieldset-button" ]
1424         );
1425 } );
1426
1427 QUnit.test( "pseudo - a:(dis|en)abled", function( assert ) {
1428         assert.expect( 2 );
1429
1430         var enabled, disabled,
1431                 container = jQuery( "<div></div>" ),
1432                 anchor = jQuery( "<a href='#'>Link</a>" );
1433
1434         container.appendTo( "#qunit-fixture" );
1435
1436         enabled = container.find( "a:enabled" );
1437         disabled = container.find( "a:disabled" );
1438
1439         assert.strictEqual( enabled.length, 0, ":enabled doesn't match anchor elements" );
1440         assert.strictEqual( disabled.length, 0, ":disabled doesn't match anchor elements" );
1441 } );
1442
1443 QUnit.test( "pseudo - :target and :root", function( assert ) {
1444         assert.expect( 2 );
1445
1446         // Target
1447         var oldHash,
1448                 $link = jQuery( "<a></a>" ).attr( {
1449                         href: "#",
1450                         id: "new-link"
1451                 } ).appendTo( "#qunit-fixture" );
1452
1453         oldHash = window.location.hash;
1454         window.location.hash = "new-link";
1455
1456         assert.t( ":target", ":target", [ "new-link" ] );
1457
1458         $link.remove();
1459         window.location.hash = oldHash;
1460
1461         // Root
1462         assert.equal( jQuery( ":root" )[ 0 ], document.documentElement, ":root selector" );
1463 } );
1464
1465 QUnit.test( "pseudo - :lang", function( assert ) {
1466         assert.expect( QUnit.jQuerySelectors ? 105 : 55 );
1467
1468         var docElem = document.documentElement,
1469                 docXmlLang = docElem.getAttribute( "xml:lang" ),
1470                 docLang = docElem.lang,
1471                 foo = document.getElementById( "foo" ),
1472                 anchor = document.getElementById( "anchor2" ),
1473                 xml = createWithFriesXML(),
1474                 testLang = function( text, elem, container, lang, extra ) {
1475                         var message,
1476                                 full = lang + "-" + extra;
1477
1478                         message = "lang=" + lang + " " + text;
1479                         container.setAttribute( container.ownerDocument.documentElement.nodeName === "HTML" ? "lang" : "xml:lang", lang );
1480                         assertMatch( message, elem, ":lang(" + lang + ")" );
1481                         assertMatch( message, elem, ":lang(" + mixCase( lang ) + ")" );
1482                         assertNoMatch( message, elem, ":lang(" + full + ")" );
1483                         assertNoMatch( message, elem, ":lang(" + mixCase( full ) + ")" );
1484                         assertNoMatch( message, elem, ":lang(" + lang + "-)" );
1485                         assertNoMatch( message, elem, ":lang(" + full + "-)" );
1486                         assertNoMatch( message, elem, ":lang(" + lang + "glish)" );
1487                         assertNoMatch( message, elem, ":lang(" + full + "glish)" );
1488
1489                         message = "lang=" + full + " " + text;
1490                         container.setAttribute( container.ownerDocument.documentElement.nodeName === "HTML" ? "lang" : "xml:lang", full );
1491                         assertMatch( message, elem, ":lang(" + lang + ")" );
1492                         assertMatch( message, elem, ":lang(" + mixCase( lang ) + ")" );
1493                         assertMatch( message, elem, ":lang(" + full + ")" );
1494                         assertMatch( message, elem, ":lang(" + mixCase( full ) + ")" );
1495                         assertNoMatch( message, elem, ":lang(" + lang + "-)" );
1496                         assertNoMatch( message, elem, ":lang(" + full + "-)" );
1497                         assertNoMatch( message, elem, ":lang(" + lang + "glish)" );
1498                         assertNoMatch( message, elem, ":lang(" + full + "glish)" );
1499                 },
1500                 mixCase = function( str ) {
1501                         var ret = str.split( "" ),
1502                                 i = ret.length;
1503                         while ( i-- ) {
1504                                 if ( i & 1 ) {
1505                                         ret[ i ] = ret[ i ].toUpperCase();
1506                                 }
1507                         }
1508                         return ret.join( "" );
1509                 },
1510                 assertMatch = function( text, elem, selector ) {
1511                         assert.ok( jQuery( elem ).is( selector ), text + " match " + selector );
1512                 },
1513                 assertNoMatch = function( text, elem, selector ) {
1514                         assert.ok( !jQuery( elem ).is( selector ), text + " fail " + selector );
1515                 };
1516
1517         // Prefixing and inheritance
1518         assert.ok( jQuery( docElem ).is( ":lang(" + docElem.lang + ")" ), "starting :lang" );
1519         testLang( "document", anchor, docElem, "en", "us" );
1520         testLang( "grandparent", anchor, anchor.parentNode.parentNode, "yue", "hk" );
1521         assert.ok( !jQuery( anchor ).is( ":lang(en), :lang(en-us)" ),
1522                 ":lang does not look above an ancestor with specified lang" );
1523         testLang( "self", anchor, anchor, "es", "419" );
1524         assert.ok(
1525                 !jQuery( anchor ).is( ":lang(en), :lang(en-us), :lang(yue), :lang(yue-hk)" ),
1526                 ":lang does not look above self with specified lang"
1527         );
1528
1529         // Searching by language tag
1530         anchor.parentNode.parentNode.lang = "arab";
1531         anchor.parentNode.lang = anchor.parentNode.id = "ara-sa";
1532         anchor.lang = "ara";
1533         assert.deepEqual( jQuery( ":lang(ara)", foo ).get(), [ anchor.parentNode, anchor ], "Find by :lang" );
1534
1535         // Selector validity
1536         anchor.parentNode.lang = "ara";
1537         anchor.lang = "ara\\b";
1538         assert.deepEqual( jQuery( ":lang(ara\\b)", foo ).get(), [], ":lang respects backslashes" );
1539         assert.deepEqual( jQuery( ":lang(ara\\\\b)", foo ).get(), [ anchor ],
1540                 ":lang respects escaped backslashes" );
1541         assert.throws( function() {
1542                 jQuery( "#qunit-fixture:lang(c++)" );
1543         }, ":lang value must be a valid identifier" );
1544
1545         if ( QUnit.jQuerySelectors ) {
1546
1547                 // XML
1548                 foo = jQuery( "response", xml )[ 0 ];
1549                 anchor = jQuery( "#seite1", xml )[ 0 ];
1550                 testLang( "XML document", anchor, xml.documentElement, "en", "us" );
1551                 testLang( "XML grandparent", anchor, foo, "yue", "hk" );
1552                 assert.ok( !jQuery( anchor ).is( ":lang(en), :lang(en-us)" ),
1553                         "XML :lang does not look above an ancestor with specified lang" );
1554                 testLang( "XML self", anchor, anchor, "es", "419" );
1555                 assert.ok(
1556                         !jQuery( anchor ).is( ":lang(en), :lang(en-us), :lang(yue), :lang(yue-hk)" ),
1557                         "XML :lang does not look above self with specified lang" );
1558         }
1559
1560         // Cleanup
1561         if ( docXmlLang == null ) {
1562                 docElem.removeAttribute( "xml:lang" );
1563         } else {
1564                 docElem.setAttribute( "xml:lang", docXmlLang );
1565         }
1566         docElem.lang = docLang;
1567 } );
1568
1569 QUnit.test( "context", function( assert ) {
1570         assert.expect( 21 );
1571
1572         var context,
1573                 selector = ".blog",
1574                 expected = q( "mark", "simon" ),
1575                 iframe = document.getElementById( "iframe" ),
1576                 iframeDoc = iframe.contentDocument || iframe.contentWindow.document;
1577
1578         assert.deepEqual( jQuery( selector, document ).get(), expected, "explicit document context" );
1579         assert.deepEqual( jQuery( selector ).get(), expected, "unspecified context becomes document" );
1580         assert.deepEqual( jQuery( selector, undefined ).get(), expected,
1581                 "undefined context becomes document" );
1582         assert.deepEqual( jQuery( selector, null ).get(), expected, "null context becomes document" );
1583
1584         iframeDoc.open();
1585         iframeDoc.write( "<body><p id='foo'>bar</p></body>" );
1586         iframeDoc.close();
1587         expected = [ iframeDoc.getElementById( "foo" ) ];
1588         assert.deepEqual( jQuery( "p", iframeDoc ).get(), expected, "Other document context (simple)" );
1589
1590         if ( QUnit.jQuerySelectors ) {
1591                 assert.deepEqual( jQuery( "p:contains(ar)", iframeDoc ).get(), expected,
1592                         "Other document context (complex)" );
1593         } else {
1594                 assert.ok( "skip", ":contains not supported in selector-native" );
1595         }
1596
1597         assert.deepEqual( jQuery( "span", iframeDoc ).get(), [],
1598                 "Other document context (simple, no results)" );
1599         assert.deepEqual( jQuery( "* span", iframeDoc ).get(), [],
1600                 "Other document context (complex, no results)" );
1601
1602         context = document.getElementById( "nothiddendiv" );
1603         assert.deepEqual( jQuery( "*", context ).get(), q( "nothiddendivchild" ), "<div> context" );
1604
1605         if ( QUnit.jQuerySelectors ) {
1606                 assert.deepEqual( jQuery( "* > *", context ).get(), [], "<div> context (no results)" );
1607         } else {
1608                 assert.ok( "skip", "The whole selector not required to be under context in selector-native" );
1609         }
1610
1611         context.removeAttribute( "id" );
1612         assert.deepEqual( jQuery( "*", context ).get(), q( "nothiddendivchild" ), "no-id element context" );
1613
1614         if ( QUnit.jQuerySelectors ) {
1615                 assert.deepEqual( jQuery( "* > *", context ).get(), [], "no-id element context (no results)" );
1616         } else {
1617                 assert.ok( "skip", ":contains not supported in selector-native" );
1618         }
1619
1620         assert.strictEqual( context.getAttribute( "id" ) || "", "", "id not added by no-id selection" );
1621
1622         context = document.getElementById( "lengthtest" );
1623         assert.deepEqual( jQuery( "input", context ).get(), q( "length", "idTest" ), "<form> context" );
1624         assert.deepEqual( jQuery( "select", context ).get(), [], "<form> context (no results)" );
1625
1626         context = document.getElementById( "台北Táiběi" );
1627         expected = q( "台北Táiběi-child" );
1628         assert.deepEqual( jQuery( "span[id]", context ).get(), expected, "context with non-ASCII id" );
1629         assert.deepEqual( jQuery( "#台北Táiběi span[id]", context.parentNode ).get(), expected,
1630                 "context with non-ASCII id selector prefix" );
1631
1632         context = document.createDocumentFragment();
1633
1634         // Capture *independent* expected nodes before they're detached from the page
1635         expected = q( "siblingnext", "siblingspan" );
1636         context.appendChild( document.getElementById( "siblingTest" ) );
1637
1638         if ( QUnit.jQuerySelectors ) {
1639                 assert.deepEqual(
1640                         jQuery( "em:nth-child(2)", context ).get(),
1641                         expected.slice( 0, 1 ),
1642                         "DocumentFragment context"
1643                 );
1644                 assert.deepEqual( jQuery( "span", context ).get(), expected.slice( 1 ),
1645                         "DocumentFragment context by tag name" );
1646                 assert.deepEqual( jQuery( "p", context ).get(), [], "DocumentFragment context (no results)" );
1647         } else {
1648                 assert.ok( "skip", "selection on document fragments not supported in selector-native" );
1649                 assert.ok( "skip", "selection on document fragments not supported in selector-native" );
1650                 assert.ok( "skip", "selection on document fragments not supported in selector-native" );
1651         }
1652
1653         if ( QUnit.jQuerySelectors ) {
1654                 assert.deepEqual(
1655                         jQuery( "em + :not(:has(*)):not(:empty), foo", context.firstChild ).get(),
1656                         expected.slice( 0, 1 ),
1657                         "Non-qSA path correctly sets detached context for sibling selectors (jQuery #14351)"
1658                 );
1659         } else {
1660                 assert.ok( "skip", ":has not supported in selector-native" );
1661         }
1662 } );
1663
1664 // Support: IE 11+
1665 // IE doesn't support the :scope pseudo-class so it will trigger MutationObservers.
1666 // The test is skipped there.
1667 QUnit.testUnlessIE( "selectors maintaining context don't trigger mutation observers", function( assert ) {
1668         assert.expect( 1 );
1669
1670         var timeout,
1671                 done = assert.async(),
1672                 container = jQuery( "<div></div>" ),
1673                 child = jQuery( "<div></div>" );
1674
1675         child.appendTo( container );
1676         container.appendTo( "#qunit-fixture" );
1677
1678         var observer = new MutationObserver(  function() {
1679                 clearTimeout( timeout );
1680                 observer.disconnect();
1681                 assert.ok( false, "Mutation observer fired during selection" );
1682                 done();
1683         } );
1684         observer.observe( container[ 0 ], { attributes: true } );
1685
1686         container.find( "div div" );
1687
1688         timeout = setTimeout( function() {
1689                 observer.disconnect();
1690                 assert.ok( true, "Mutation observer didn't fire during selection" );
1691                 done();
1692         } );
1693 } );
1694
1695 QUnit.test( "caching does not introduce bugs", function( assert ) {
1696         assert.expect( 3 );
1697
1698         var sap = document.getElementById( "sap" );
1699
1700         jQuery( ":not(code)", document.getElementById( "ap" ) );
1701         assert.deepEqual(
1702                 jQuery( ":not(code)", document.getElementById( "foo" ) ).get(),
1703                 q( "sndp", "en", "yahoo", "sap", "anchor2", "simon" ),
1704                 "Reusing selector with new context"
1705         );
1706
1707         if ( QUnit.jQuerySelectorsPos ) {
1708                 assert.t( "Deep ancestry caching in post-positional element matcher (jQuery #14657)",
1709                         "#qunit-fixture a:lt(3):parent",
1710                         [ "simon1", "google", "groups" ] );
1711         } else {
1712                 assert.ok( "skip", "Positional selectors are not supported" );
1713         }
1714
1715         sap.className = "original";
1716         jQuery( "#qunit-fixture .original" );
1717         document.getElementById( "nothiddendiv" ).appendChild(
1718                 sap.cloneNode( true ) ).className = "clone";
1719         assert.equal( jQuery( "#qunit-fixture .clone [href*='2']" ).length, 1,
1720                 "Cloning does not poison caches" );
1721 } );
1722
1723
1724 QUnit.test( "disconnected nodes", function( assert ) {
1725         assert.expect( 1 );
1726
1727         var $div = jQuery( "<div></div>" );
1728         assert.equal( $div.is( "div" ), true, "Make sure .is('nodeName') works on disconnected nodes." );
1729 } );
1730
1731 QUnit[ QUnit.jQuerySelectors ? "test" : "skip" ]( "disconnected nodes", function( assert ) {
1732         assert.expect( 3 );
1733
1734         var $opt = jQuery( "<option></option>" ).attr( "value", "whipit" ).appendTo( "#qunit-fixture" ).detach();
1735         assert.equal( $opt.val(), "whipit", "option value" );
1736         assert.equal( $opt.is( ":selected" ), false, "unselected option" );
1737         $opt.prop( "selected", true );
1738         assert.equal( $opt.is( ":selected" ), true, "selected option" );
1739 } );
1740
1741 // Support: IE 11+
1742 // IE doesn't support Shadow DOM.
1743 // selector-native doesn't support querying inside of Shadow DOM.
1744 QUnit[ QUnit.jQuerySelectors && !QUnit.isIE ? "test" : "skip" ](
1745         "Shadow DOM nodes supported as root", function( assert ) {
1746         assert.expect( 2 );
1747
1748         var shadowHost = jQuery( "<div></div>" ).appendTo( "#qunit-fixture" )[ 0 ];
1749         var shadowRoot = shadowHost.attachShadow( { mode: "open" } );
1750
1751         shadowRoot.innerHTML = "<div class='vagabond'><p></p></div>";
1752         assert.equal( jQuery( shadowRoot ).find( ".vagabond" ).length, 1,
1753                 "Selection by class with shadow root" );
1754         assert.equal( jQuery( shadowRoot ).find( "p" ).length, 1,
1755                 "Paragraph element selected from shadow root" );
1756 } );
1757
1758 testIframe(
1759         "attributes - jQuery.attr",
1760         "selector/html5_selector.html",
1761         function( assert, jQuery, window, document ) {
1762                 assert.expect( 38 );
1763
1764                 /**
1765                  * Returns an array of elements with the given IDs
1766                  * q & t are added here for the iFrame's context
1767                  */
1768                 function q() {
1769                         var r = [],
1770                                 i = 0;
1771
1772                         for ( ; i < arguments.length; i++ ) {
1773                                 r.push( document.getElementById( arguments[ i ] ) );
1774                         }
1775                         return r;
1776                 }
1777
1778                 /**
1779                  * Asserts that a select matches the given IDs
1780                  * @example t("Check for something", "//[a]", ["foo", "bar"]);
1781                  * @param {String} message - Assertion name
1782                  * @param {String} selector - jQuery selector
1783                  * @param {Array} expectedIds - Array of ids to construct what is expected
1784                  */
1785                 function t( message, selector, expectedIds ) {
1786                         var elems = jQuery( selector ).get();
1787
1788                         assert.deepEqual( elems, q.apply( q, expectedIds ), message + " (" + selector + ")" );
1789                 }
1790
1791                 // ====== All known boolean attributes, including html5 booleans ======
1792                 // autobuffer, autofocus, autoplay, async, checked,
1793                 // compact, controls, declare, defer, disabled,
1794                 // formnovalidate, hidden, indeterminate (property only),
1795                 // ismap, itemscope, loop, multiple, muted, nohref, noresize,
1796                 // noshade, nowrap, novalidate, open, pubdate, readonly, required,
1797                 // reversed, scoped, seamless, selected, truespeed, visible (skipping visible attribute, which is on a barprop object)
1798
1799                 t( "Attribute Exists", "[autobuffer]",     [ "video1" ] );
1800                 t( "Attribute Exists", "[autofocus]",      [ "text1" ] );
1801                 t( "Attribute Exists", "[autoplay]",       [ "video1" ] );
1802                 t( "Attribute Exists", "[async]",          [ "script1" ] );
1803                 t( "Attribute Exists", "[checked]",        [ "check1" ] );
1804                 t( "Attribute Exists", "[compact]",        [ "dl" ] );
1805                 t( "Attribute Exists", "[controls]",       [ "video1" ] );
1806                 t( "Attribute Exists", "[declare]",        [ "object1" ] );
1807                 t( "Attribute Exists", "[defer]",          [ "script1" ] );
1808                 t( "Attribute Exists", "[disabled]",       [ "check1" ] );
1809                 t( "Attribute Exists", "[formnovalidate]", [ "form1" ] );
1810                 t( "Attribute Exists", "[hidden]",         [ "div1" ] );
1811                 t( "Attribute Exists", "[indeterminate]",  [] );
1812                 t( "Attribute Exists", "[ismap]",          [ "img1" ] );
1813                 t( "Attribute Exists", "[itemscope]",      [ "div1" ] );
1814                 t( "Attribute Exists", "[loop]",           [ "video1" ] );
1815                 t( "Attribute Exists", "[multiple]",       [ "select1" ] );
1816                 t( "Attribute Exists", "[muted]",          [ "audio1" ] );
1817                 t( "Attribute Exists", "[nohref]",         [ "area1" ] );
1818                 t( "Attribute Exists", "[noresize]",       [ "textarea1" ] );
1819                 t( "Attribute Exists", "[noshade]",        [ "hr1" ] );
1820                 t( "Attribute Exists", "[nowrap]",         [ "td1", "div1" ] );
1821                 t( "Attribute Exists", "[novalidate]",     [ "form1" ] );
1822                 t( "Attribute Exists", "[open]",           [ "details1" ] );
1823                 t( "Attribute Exists", "[pubdate]",        [ "article1" ] );
1824                 t( "Attribute Exists", "[readonly]",       [ "text1" ] );
1825                 t( "Attribute Exists", "[required]",       [ "text1" ] );
1826                 t( "Attribute Exists", "[reversed]",       [ "ol1" ] );
1827                 t( "Attribute Exists", "[scoped]",         [ "style1" ] );
1828                 t( "Attribute Exists", "[seamless]",       [ "iframe1" ] );
1829                 t( "Attribute Exists", "[selected]",       [ "option1" ] );
1830                 t( "Attribute Exists", "[truespeed]",      [ "marquee1" ] );
1831
1832                 // Enumerated attributes (these are not boolean content attributes)
1833                 jQuery.expandedEach = jQuery.each;
1834                 jQuery.expandedEach( [ "draggable", "contenteditable", "aria-disabled" ], function( i, val ) {
1835                         t( "Enumerated attribute", "[" + val + "]", [ "div1" ] );
1836                 } );
1837                 t( "Enumerated attribute", "[spellcheck]", [ "span1" ] );
1838
1839                 t( "tabindex selector does not retrieve all elements in IE6/7 (#8473)",
1840                         "form, [tabindex]", [ "form1", "text1" ] );
1841                 t( "Improperly named form elements do not interfere with form selections (#9570)", "form[name='formName']", [ "form1" ] );
1842         }
1843 );
1844
1845 QUnit.test( "jQuery.contains", function( assert ) {
1846         assert.expect( 16 );
1847
1848         var container = document.getElementById( "nonnodes" ),
1849                 element = container.firstChild,
1850                 text = element.nextSibling,
1851                 nonContained = container.nextSibling,
1852                 detached = document.createElement( "a" );
1853         assert.ok( element && element.nodeType === 1, "preliminary: found element" );
1854         assert.ok( text && text.nodeType === 3, "preliminary: found text" );
1855         assert.ok( nonContained, "preliminary: found non-descendant" );
1856         assert.ok( jQuery.contains( container, element ), "child" );
1857         assert.ok( jQuery.contains( container.parentNode, element ), "grandchild" );
1858         assert.ok( jQuery.contains( container, text ), "text child" );
1859         assert.ok( jQuery.contains( container.parentNode, text ), "text grandchild" );
1860         assert.ok( !jQuery.contains( container, container ), "self" );
1861         assert.ok( !jQuery.contains( element, container ), "parent" );
1862         assert.ok( !jQuery.contains( container, nonContained ), "non-descendant" );
1863         assert.ok( !jQuery.contains( container, document ), "document" );
1864         assert.ok( !jQuery.contains( container, document.documentElement ), "documentElement (negative)" );
1865         assert.ok( !jQuery.contains( container, null ), "Passing null does not throw an error" );
1866         assert.ok( jQuery.contains( document, document.documentElement ), "documentElement (positive)" );
1867         assert.ok( jQuery.contains( document, element ), "document container (positive)" );
1868         assert.ok( !jQuery.contains( document, detached ), "document container (negative)" );
1869 } );
1870
1871 QUnit.test( "jQuery.contains in SVG (jQuery trac-10832)", function( assert ) {
1872         assert.expect( 4 );
1873
1874         var svg = jQuery(
1875                 "<svg xmlns='http://www.w3.org/2000/svg' version='1.1' height='1' width='1'>" +
1876                 "<g><circle cx='1' cy='1' r='1' /></g>" +
1877                 "</svg>"
1878         ).appendTo( "#qunit-fixture" )[ 0 ];
1879
1880         assert.ok( jQuery.contains( svg, svg.firstChild ), "root child" );
1881         assert.ok( jQuery.contains( svg.firstChild, svg.firstChild.firstChild ), "element child" );
1882         assert.ok( jQuery.contains( svg, svg.firstChild.firstChild ), "root granchild" );
1883         assert.ok( !jQuery.contains( svg.firstChild.firstChild, svg.firstChild ),
1884                 "parent (negative)" );
1885 } );
1886
1887 QUnit.test( "jQuery.uniqueSort", function( assert ) {
1888         assert.expect( 14 );
1889
1890         function Arrayish( arr ) {
1891                 var i = this.length = arr.length;
1892                 while ( i-- ) {
1893                         this[ i ] = arr[ i ];
1894                 }
1895         }
1896         Arrayish.prototype = {
1897                 slice: [].slice,
1898                 sort: [].sort,
1899                 splice: [].splice
1900         };
1901
1902         var i, tests,
1903                 detached = [],
1904                 body = document.body,
1905                 fixture = document.getElementById( "qunit-fixture" ),
1906                 detached1 = document.createElement( "p" ),
1907                 detached2 = document.createElement( "ul" ),
1908                 detachedChild = detached1.appendChild( document.createElement( "a" ) ),
1909                 detachedGrandchild = detachedChild.appendChild( document.createElement( "b" ) );
1910
1911         for ( i = 0; i < 12; i++ ) {
1912                 detached.push( document.createElement( "li" ) );
1913                 detached[ i ].id = "detached" + i;
1914                 detached2.appendChild( document.createElement( "li" ) ).id = "detachedChild" + i;
1915         }
1916
1917         tests = {
1918                 "Empty": {
1919                         input: [],
1920                         expected: []
1921                 },
1922                 "Single-element": {
1923                         input: [ fixture ],
1924                         expected: [ fixture ]
1925                 },
1926                 "No duplicates": {
1927                         input: [ fixture, body ],
1928                         expected: [ body, fixture ]
1929                 },
1930                 "Duplicates": {
1931                         input: [ body, fixture, fixture, body ],
1932                         expected: [ body, fixture ]
1933                 },
1934                 "Detached": {
1935                         input: detached.slice( 0 ),
1936                         expected: detached.slice( 0 )
1937                 },
1938                 "Detached children": {
1939                         input: [
1940                                 detached2.childNodes[ 3 ],
1941                                 detached2.childNodes[ 0 ],
1942                                 detached2.childNodes[ 2 ],
1943                                 detached2.childNodes[ 1 ]
1944                         ],
1945                         expected: [
1946                                 detached2.childNodes[ 0 ],
1947                                 detached2.childNodes[ 1 ],
1948                                 detached2.childNodes[ 2 ],
1949                                 detached2.childNodes[ 3 ]
1950                         ]
1951                 },
1952                 "Attached/detached mixture": {
1953                         input: [ detached1, fixture, detached2, document, detachedChild, body, detachedGrandchild ],
1954                         expected: [ document, body, fixture ],
1955                         length: 3
1956                 }
1957         };
1958
1959         jQuery.each( tests, function( label, test ) {
1960                 var length = test.length || test.input.length;
1961                 assert.deepEqual( jQuery.uniqueSort( test.input ).slice( 0, length ), test.expected, label + " (array)" );
1962                 assert.deepEqual( jQuery.uniqueSort( new Arrayish( test.input ) ).slice( 0, length ), test.expected, label + " (quasi-array)" );
1963         } );
1964 } );
1965
1966 testIframe(
1967         "jQuery.uniqueSort works cross-window (trac-14381)",
1968         "selector/mixed_sort.html",
1969         function( assert, jQuery, window, document, actual, expected ) {
1970                 assert.expect( 1 );
1971
1972                 assert.deepEqual( actual, expected, "Mixed array was sorted correctly" );
1973         }
1974 );
1975
1976 testIframe(
1977         "jQuery selector cache collides with multiple jQueries on a page",
1978         "selector/cache.html",
1979         function( assert, jQuery, window, document ) {
1980                 var $cached = window.$cached;
1981
1982                 assert.expect( 4 );
1983                 assert.notStrictEqual( jQuery, $cached, "Loaded two engines" );
1984                 assert.deepEqual( $cached( ".test a" ).get(), [ document.getElementById( "collision" ) ], "Select collision anchor with first sizzle" );
1985                 assert.equal( jQuery( ".evil a" ).length, 0, "Select nothing with second sizzle" );
1986                 assert.equal( jQuery( ".evil a" ).length, 0, "Select nothing again with second sizzle" );
1987         }
1988 );
1989
1990 QUnit.test( "Iframe dispatch should not affect jQuery (#13936)", function( assert ) {
1991         assert.expect( 1 );
1992         var loaded = false,
1993                 thrown = false,
1994                 iframe = document.getElementById( "iframe" ),
1995                 iframeDoc = iframe.contentDocument || iframe.contentWindow.document,
1996                 done = assert.async();
1997
1998         jQuery( iframe ).on( "load", function() {
1999                 var form;
2000
2001                 try {
2002                         iframeDoc = this.contentDocument || this.contentWindow.document;
2003                         form = jQuery( "#navigate", iframeDoc )[ 0 ];
2004                 } catch ( e ) {
2005                         thrown = e;
2006                 }
2007
2008                 if ( loaded ) {
2009                         assert.strictEqual( thrown, false, "No error thrown from post-reload jQuery call" );
2010
2011                         // clean up
2012                         jQuery( iframe ).off();
2013
2014                         done();
2015                 } else {
2016                         loaded = true;
2017                         form.submit();
2018                 }
2019         } );
2020
2021         iframeDoc.open();
2022         iframeDoc.write( "<body><form id='navigate' action='?'></form></body>" );
2023         iframeDoc.close();
2024 } );
2025
2026 QUnit.test( "jQuery.escapeSelector", function( assert ) {
2027         assert.expect( 58 );
2028
2029         // Edge cases
2030         assert.equal( jQuery.escapeSelector(), "undefined", "Converts undefined to string" );
2031         assert.equal( jQuery.escapeSelector( "-" ), "\\-", "Escapes standalone dash" );
2032         assert.equal( jQuery.escapeSelector( "-a" ), "-a", "Doesn't escape leading dash followed by non-number" );
2033         assert.equal( jQuery.escapeSelector( "--" ), "--", "Doesn't escape standalone double dash" );
2034         assert.equal( jQuery.escapeSelector( "\uFFFD" ), "\uFFFD",
2035                 "Doesn't escape standalone replacement character" );
2036         assert.equal( jQuery.escapeSelector( "a\uFFFD" ), "a\uFFFD",
2037                 "Doesn't escape trailing replacement character" );
2038         assert.equal( jQuery.escapeSelector( "\uFFFDb" ), "\uFFFDb",
2039                 "Doesn't escape leading replacement character" );
2040         assert.equal( jQuery.escapeSelector( "a\uFFFDb" ), "a\uFFFDb",
2041                 "Doesn't escape embedded replacement character" );
2042
2043         // Derived from CSSOM tests
2044         // https://test.csswg.org/harness/test/cssom-1_dev/section/7.1/
2045
2046         // String conversion
2047         assert.equal( jQuery.escapeSelector( true ), "true", "Converts boolean true to string" );
2048         assert.equal( jQuery.escapeSelector( false ), "false", "Converts boolean true to string" );
2049         assert.equal( jQuery.escapeSelector( null ), "null", "Converts null to string" );
2050         assert.equal( jQuery.escapeSelector( "" ), "", "Doesn't modify empty string" );
2051
2052         // Null bytes
2053         assert.equal( jQuery.escapeSelector( "\0" ), "\uFFFD",
2054                 "Escapes null-character input as replacement character" );
2055         assert.equal( jQuery.escapeSelector( "a\0" ), "a\uFFFD",
2056                 "Escapes trailing-null input as replacement character" );
2057         assert.equal( jQuery.escapeSelector( "\0b" ), "\uFFFDb",
2058                 "Escapes leading-null input as replacement character" );
2059         assert.equal( jQuery.escapeSelector( "a\0b" ), "a\uFFFDb",
2060                 "Escapes embedded-null input as replacement character" );
2061
2062         // Number prefix
2063         assert.equal( jQuery.escapeSelector( "0a" ), "\\30 a", "Escapes leading 0" );
2064         assert.equal( jQuery.escapeSelector( "1a" ), "\\31 a", "Escapes leading 1" );
2065         assert.equal( jQuery.escapeSelector( "2a" ), "\\32 a", "Escapes leading 2" );
2066         assert.equal( jQuery.escapeSelector( "3a" ), "\\33 a", "Escapes leading 3" );
2067         assert.equal( jQuery.escapeSelector( "4a" ), "\\34 a", "Escapes leading 4" );
2068         assert.equal( jQuery.escapeSelector( "5a" ), "\\35 a", "Escapes leading 5" );
2069         assert.equal( jQuery.escapeSelector( "6a" ), "\\36 a", "Escapes leading 6" );
2070         assert.equal( jQuery.escapeSelector( "7a" ), "\\37 a", "Escapes leading 7" );
2071         assert.equal( jQuery.escapeSelector( "8a" ), "\\38 a", "Escapes leading 8" );
2072         assert.equal( jQuery.escapeSelector( "9a" ), "\\39 a", "Escapes leading 9" );
2073
2074         // Letter-number prefix
2075         assert.equal( jQuery.escapeSelector( "a0b" ), "a0b", "Doesn't escape embedded 0" );
2076         assert.equal( jQuery.escapeSelector( "a1b" ), "a1b", "Doesn't escape embedded 1" );
2077         assert.equal( jQuery.escapeSelector( "a2b" ), "a2b", "Doesn't escape embedded 2" );
2078         assert.equal( jQuery.escapeSelector( "a3b" ), "a3b", "Doesn't escape embedded 3" );
2079         assert.equal( jQuery.escapeSelector( "a4b" ), "a4b", "Doesn't escape embedded 4" );
2080         assert.equal( jQuery.escapeSelector( "a5b" ), "a5b", "Doesn't escape embedded 5" );
2081         assert.equal( jQuery.escapeSelector( "a6b" ), "a6b", "Doesn't escape embedded 6" );
2082         assert.equal( jQuery.escapeSelector( "a7b" ), "a7b", "Doesn't escape embedded 7" );
2083         assert.equal( jQuery.escapeSelector( "a8b" ), "a8b", "Doesn't escape embedded 8" );
2084         assert.equal( jQuery.escapeSelector( "a9b" ), "a9b", "Doesn't escape embedded 9" );
2085
2086         // Dash-number prefix
2087         assert.equal( jQuery.escapeSelector( "-0a" ), "-\\30 a", "Escapes 0 after leading dash" );
2088         assert.equal( jQuery.escapeSelector( "-1a" ), "-\\31 a", "Escapes 1 after leading dash" );
2089         assert.equal( jQuery.escapeSelector( "-2a" ), "-\\32 a", "Escapes 2 after leading dash" );
2090         assert.equal( jQuery.escapeSelector( "-3a" ), "-\\33 a", "Escapes 3 after leading dash" );
2091         assert.equal( jQuery.escapeSelector( "-4a" ), "-\\34 a", "Escapes 4 after leading dash" );
2092         assert.equal( jQuery.escapeSelector( "-5a" ), "-\\35 a", "Escapes 5 after leading dash" );
2093         assert.equal( jQuery.escapeSelector( "-6a" ), "-\\36 a", "Escapes 6 after leading dash" );
2094         assert.equal( jQuery.escapeSelector( "-7a" ), "-\\37 a", "Escapes 7 after leading dash" );
2095         assert.equal( jQuery.escapeSelector( "-8a" ), "-\\38 a", "Escapes 8 after leading dash" );
2096         assert.equal( jQuery.escapeSelector( "-9a" ), "-\\39 a", "Escapes 9 after leading dash" );
2097
2098         // Double dash prefix
2099         assert.equal( jQuery.escapeSelector( "--a" ), "--a", "Doesn't escape leading double dash" );
2100
2101         // Miscellany
2102         assert.equal( jQuery.escapeSelector( "\x01\x02\x1E\x1F" ), "\\1 \\2 \\1e \\1f ",
2103                 "Escapes C0 control characters" );
2104         assert.equal( jQuery.escapeSelector( "\x80\x2D\x5F\xA9" ), "\x80\x2D\x5F\xA9",
2105                 "Doesn't escape general punctuation or non-ASCII ISO-8859-1 characters" );
2106         assert.equal(
2107                 jQuery.escapeSelector( "\x7F\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8A\x8B\x8C\x8D\x8E\x8F\x90" +
2108                         "\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9A\x9B\x9C\x9D\x9E\x9F" ),
2109                 "\\7f \x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8A\x8B\x8C\x8D\x8E\x8F\x90" +
2110                 "\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9A\x9B\x9C\x9D\x9E\x9F",
2111                 "Escapes DEL control character"
2112         );
2113         assert.equal( jQuery.escapeSelector( "\xA0\xA1\xA2" ), "\xA0\xA1\xA2",
2114                 "Doesn't escape non-ASCII ISO-8859-1 characters" );
2115         assert.equal( jQuery.escapeSelector( "a0123456789b" ), "a0123456789b",
2116                 "Doesn't escape embedded numbers" );
2117         assert.equal( jQuery.escapeSelector( "abcdefghijklmnopqrstuvwxyz" ), "abcdefghijklmnopqrstuvwxyz",
2118                 "Doesn't escape lowercase ASCII letters" );
2119         assert.equal( jQuery.escapeSelector( "ABCDEFGHIJKLMNOPQRSTUVWXYZ" ), "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
2120                 "Doesn't escape uppercase ASCII letters" );
2121         assert.equal( jQuery.escapeSelector( "\x20\x21\x78\x79" ), "\\ \\!xy",
2122                 "Escapes non-word ASCII characters" );
2123
2124         // Astral symbol (U+1D306 TETRAGRAM FOR CENTRE)
2125         assert.equal( jQuery.escapeSelector( "\uD834\uDF06" ), "\uD834\uDF06",
2126                 "Doesn't escape astral characters" );
2127
2128         // Lone surrogates
2129         assert.equal( jQuery.escapeSelector( "\uDF06" ), "\uDF06", "Doesn't escape lone low surrogate" );
2130         assert.equal( jQuery.escapeSelector( "\uD834" ), "\uD834", "Doesn't escape lone high surrogate" );
2131 } );