js/jquery/src/jquery/sizzle/test/unit/extending.js

   1 module("extending", { teardown: moduleTeardown });
   2
   3 test("custom pseudos", function() {
   4         expect( 6 );
   5
   6         Sizzle.selectors.filters.foundation = Sizzle.selectors.filters.root;
   7         deepEqual( Sizzle(":foundation"), [ document.documentElement ], "Copy element filter with new name" );
   8         delete Sizzle.selectors.filters.foundation;
   9
  10         Sizzle.selectors.setFilters.primary = Sizzle.selectors.setFilters.first;
  11         t( "Copy set filter with new name", "div:primary", ["qunit"] );
  12         delete Sizzle.selectors.setFilters.primary;
  13
  14         Sizzle.selectors.filters.aristotlean = Sizzle.selectors.createPseudo(function() {
  15                 return function( elem ) {
  16                         return !!elem.id;
  17                 };
  18         });
  19         t( "Custom element filter", "#foo :aristotlean", [ "sndp", "en", "yahoo", "sap", "anchor2", "simon" ] );
  20         delete Sizzle.selectors.filters.aristotlean;
  21
  22         Sizzle.selectors.filters.endswith = Sizzle.selectors.createPseudo(function( text ) {
  23                 return function( elem ) {
  24                         return Sizzle.getText( elem ).slice( -text.length ) === text;
  25                 };
  26         });
  27         t( "Custom element filter with argument", "a:endswith(ogle)", ["google"] );
  28         delete Sizzle.selectors.filters.endswith;
  29
  30         Sizzle.selectors.setFilters.second = Sizzle.selectors.createPseudo(function() {
  31                 return Sizzle.selectors.createPseudo(function( seed, matches ) {
  32                         if ( seed[1] ) {
  33                                 matches[1] = seed[1];
  34                                 seed[1] = false;
  35                         }
  36                 });
  37         });
  38         t( "Custom set filter", "#qunit-fixture p:second", ["ap"] );
  39         delete Sizzle.selectors.filters.second;
  40
  41         Sizzle.selectors.setFilters.slice = Sizzle.selectors.createPseudo(function( argument ) {
  42                 var bounds = argument.split(":");
  43                 return Sizzle.selectors.createPseudo(function( seed, matches ) {
  44                         var i = bounds[1];
  45
  46                         // Match elements found at the specified indexes
  47                         while ( --i >= bounds[0] ) {
  48                                 if ( seed[i] ) {
  49                                         matches[i] = seed[i];
  50                                         seed[i] = false;
  51                                 }
  52                         }
  53                 });
  54         });
  55         t( "Custom set filter with argument", "#qunit-fixture p:slice(1:3)", [ "ap", "sndp" ] );
  56         delete Sizzle.selectors.filters.slice;
  57 });
  58
  59 test("backwards-compatible custom pseudos", function() {
  60         expect( 3 );
  61
  62         Sizzle.selectors.filters.icontains = function( elem, i, match ) {
  63                 return Sizzle.getText( elem ).toLowerCase().indexOf( (match[3] || "").toLowerCase() ) > -1;
  64         };
  65         t( "Custom element filter with argument", "a:icontains(THIS BLOG ENTRY)", ["simon1"] );
  66         delete Sizzle.selectors.filters.icontains;
  67
  68         Sizzle.selectors.setFilters.podium = function( elements, argument ) {
  69                 var count = argument == null || argument === "" ? 3 : +argument;
  70                 return elements.slice( 0, count );
  71         };
  72         // Using TAG as the first token here forces this setMatcher into a fail state
  73         // Where the descendent combinator was lost
  74         t( "Custom setFilter", "form#form :PODIUM", ["label-for", "text1", "text2"] );
  75         t( "Custom setFilter with argument", "#form input:Podium(1)", ["text1"] );
  76         delete Sizzle.selectors.setFilters.podium;
  77 });
  78
  79 test("custom attribute getters", function() {
  80         expect( 2 );
  81
  82         var original = Sizzle.selectors.attrHandle.hreflang,
  83                 selector = "a:contains('mark')[hreflang='http://diveintomark.org/en']";
  84
  85         Sizzle.selectors.attrHandle.hreflang = function( elem, name ) {
  86                 var href = elem.getAttribute("href"),
  87                         lang = elem.getAttribute( name );
  88                 return lang && ( href + lang );
  89         };
  90
  91         deepEqual( Sizzle(selector, createWithFriesXML()), [], "Custom attrHandle (preferred document)" );
  92         t( "Custom attrHandle (preferred document)", selector, ["mark"] );
  93
  94         Sizzle.selectors.attrHandle.hreflang = original;
  95 });