lib/tests/weblib_test.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * Weblib tests.
  19  *
  20  * @package    core
  21  * @category   phpunit
  22  * @copyright  &copy; 2006 The Open University
  23  * @author     T.J.Hunt@open.ac.uk
  24  * @license    http://www.gnu.org/copyleft/gpl.html GNU Public License
  25  */
  26
  27 defined('MOODLE_INTERNAL') || die();
  28
  29
  30 class core_weblib_testcase extends advanced_testcase {
  31
  32     public function test_format_string() {
  33         global $CFG;
  34
  35         // Ampersands.
  36         $this->assertSame("&amp; &amp;&amp;&amp;&amp;&amp; &amp;&amp;", format_string("& &&&&& &&"));
  37         $this->assertSame("ANother &amp; &amp;&amp;&amp;&amp;&amp; Category", format_string("ANother & &&&&& Category"));
  38         $this->assertSame("ANother &amp; &amp;&amp;&amp;&amp;&amp; Category", format_string("ANother & &&&&& Category", true));
  39         $this->assertSame("Nick's Test Site &amp; Other things", format_string("Nick's Test Site & Other things", true));
  40         $this->assertSame("& < > \" '", format_string("& < > \" '", true, ['escape' => false]));
  41
  42         // String entities.
  43         $this->assertSame("&quot;", format_string("&quot;"));
  44
  45         // Digital entities.
  46         $this->assertSame("&11234;", format_string("&11234;"));
  47
  48         // Unicode entities.
  49         $this->assertSame("&#4475;", format_string("&#4475;"));
  50
  51         // < and > signs.
  52         $originalformatstringstriptags = $CFG->formatstringstriptags;
  53
  54         $CFG->formatstringstriptags = false;
  55         $this->assertSame('x &lt; 1', format_string('x < 1'));
  56         $this->assertSame('x &gt; 1', format_string('x > 1'));
  57         $this->assertSame('x &lt; 1 and x &gt; 0', format_string('x < 1 and x > 0'));
  58
  59         $CFG->formatstringstriptags = true;
  60         $this->assertSame('x &lt; 1', format_string('x < 1'));
  61         $this->assertSame('x &gt; 1', format_string('x > 1'));
  62         $this->assertSame('x &lt; 1 and x &gt; 0', format_string('x < 1 and x > 0'));
  63
  64         $CFG->formatstringstriptags = $originalformatstringstriptags;
  65     }
  66
  67     public function test_s() {
  68         // Special cases.
  69         $this->assertSame('0', s(0));
  70         $this->assertSame('0', s('0'));
  71         $this->assertSame('0', s(false));
  72         $this->assertSame('', s(null));
  73
  74         // Normal cases.
  75         $this->assertSame('This Breaks &quot; Strict', s('This Breaks " Strict'));
  76         $this->assertSame('This Breaks &lt;a&gt;&quot; Strict&lt;/a&gt;', s('This Breaks <a>" Strict</a>'));
  77
  78         // Unicode characters.
  79         $this->assertSame('Café', s('Café'));
  80         $this->assertSame('一, 二, 三', s('一, 二, 三'));
  81
  82         // Don't escape already-escaped numeric entities. (Note, this behaviour
  83         // may not be desirable. Perhaps we should remove these tests and that
  84         // functionality, but we can only do that if we understand why it was added.)
  85         $this->assertSame('An entity: &#x09ff;.', s('An entity: &#x09ff;.'));
  86         $this->assertSame('An entity: &#1073;.', s('An entity: &#1073;.'));
  87         $this->assertSame('An entity: &amp;amp;.', s('An entity: &amp;.'));
  88         $this->assertSame('Not an entity: &amp;amp;#x09ff;.', s('Not an entity: &amp;#x09ff;.'));
  89     }
  90
  91     public function test_format_text_email() {
  92         $this->assertSame("This is a TEST\n",
  93             format_text_email('<p>This is a <strong>test</strong></p>', FORMAT_HTML));
  94         $this->assertSame("This is a TEST\n",
  95             format_text_email('<p class="frogs">This is a <strong class=\'fishes\'>test</strong></p>', FORMAT_HTML));
  96         $this->assertSame('& so is this',
  97             format_text_email('&amp; so is this', FORMAT_HTML));
  98         $this->assertSame('Two bullets: ' . core_text::code2utf8(8226) . ' ' . core_text::code2utf8(8226),
  99             format_text_email('Two bullets: &#x2022; &#8226;', FORMAT_HTML));
 100         $this->assertSame(core_text::code2utf8(0x7fd2).core_text::code2utf8(0x7fd2),
 101             format_text_email('&#x7fd2;&#x7FD2;', FORMAT_HTML));
 102     }
 103
 104     public function test_obfuscate_email() {
 105         $email = 'some.user@example.com';
 106         $obfuscated = obfuscate_email($email);
 107         $this->assertNotSame($email, $obfuscated);
 108         $back = core_text::entities_to_utf8(urldecode($email), true);
 109         $this->assertSame($email, $back);
 110     }
 111
 112     public function test_obfuscate_text() {
 113         $text = 'Žluťoučký koníček 32131';
 114         $obfuscated = obfuscate_text($text);
 115         $this->assertNotSame($text, $obfuscated);
 116         $back = core_text::entities_to_utf8($obfuscated, true);
 117         $this->assertSame($text, $back);
 118     }
 119
 120     public function test_highlight() {
 121         $this->assertSame('This is <span class="highlight">good</span>',
 122                 highlight('good', 'This is good'));
 123
 124         $this->assertSame('<span class="highlight">span</span>',
 125                 highlight('SpaN', 'span'));
 126
 127         $this->assertSame('<span class="highlight">SpaN</span>',
 128                 highlight('span', 'SpaN'));
 129
 130         $this->assertSame('<span><span class="highlight">span</span></span>',
 131                 highlight('span', '<span>span</span>'));
 132
 133         $this->assertSame('He <span class="highlight">is</span> <span class="highlight">good</span>',
 134                 highlight('good is', 'He is good'));
 135
 136         $this->assertSame('This is <span class="highlight">good</span>',
 137                 highlight('+good', 'This is good'));
 138
 139         $this->assertSame('This is good',
 140                 highlight('-good', 'This is good'));
 141
 142         $this->assertSame('This is goodness',
 143                 highlight('+good', 'This is goodness'));
 144
 145         $this->assertSame('This is <span class="highlight">good</span>ness',
 146                 highlight('good', 'This is goodness'));
 147
 148         $this->assertSame('<p><b>test</b> <b>1</b></p><p><b>1</b></p>',
 149                 highlight('test 1', '<p>test 1</p><p>1</p>', false, '<b>', '</b>'));
 150
 151         $this->assertSame('<p><b>test</b> <b>1</b></p><p><b>1</b></p>',
 152                     highlight('test +1', '<p>test 1</p><p>1</p>', false, '<b>', '</b>'));
 153
 154         $this->assertSame('<p><b>test</b> 1</p><p>1</p>',
 155                     highlight('test -1', '<p>test 1</p><p>1</p>', false, '<b>', '</b>'));
 156     }
 157
 158     public function test_replace_ampersands() {
 159         $this->assertSame("This &amp; that &nbsp;", replace_ampersands_not_followed_by_entity("This & that &nbsp;"));
 160         $this->assertSame("This &amp;nbsp that &nbsp;", replace_ampersands_not_followed_by_entity("This &nbsp that &nbsp;"));
 161     }
 162
 163     public function test_strip_links() {
 164         $this->assertSame('this is a link', strip_links('this is a <a href="http://someaddress.com/query">link</a>'));
 165     }
 166
 167     public function test_wikify_links() {
 168         $this->assertSame('this is a link [ http://someaddress.com/query ]', wikify_links('this is a <a href="http://someaddress.com/query">link</a>'));
 169     }
 170
 171     /**
 172      * Test basic moodle_url construction.
 173      */
 174     public function test_moodle_url_constructor() {
 175         global $CFG;
 176
 177         $url = new moodle_url('/index.php');
 178         $this->assertSame($CFG->wwwroot.'/index.php', $url->out());
 179
 180         $url = new moodle_url('/index.php', array());
 181         $this->assertSame($CFG->wwwroot.'/index.php', $url->out());
 182
 183         $url = new moodle_url('/index.php', array('id' => 2));
 184         $this->assertSame($CFG->wwwroot.'/index.php?id=2', $url->out());
 185
 186         $url = new moodle_url('/index.php', array('id' => 'two'));
 187         $this->assertSame($CFG->wwwroot.'/index.php?id=two', $url->out());
 188
 189         $url = new moodle_url('/index.php', array('id' => 1, 'cid' => '2'));
 190         $this->assertSame($CFG->wwwroot.'/index.php?id=1&amp;cid=2', $url->out());
 191         $this->assertSame($CFG->wwwroot.'/index.php?id=1&cid=2', $url->out(false));
 192
 193         $url = new moodle_url('/index.php', null, 'test');
 194         $this->assertSame($CFG->wwwroot.'/index.php#test', $url->out());
 195
 196         $url = new moodle_url('/index.php', array('id' => 2), 'test');
 197         $this->assertSame($CFG->wwwroot.'/index.php?id=2#test', $url->out());
 198     }
 199
 200     /**
 201      * Tests moodle_url::get_path().
 202      */
 203     public function test_moodle_url_get_path() {
 204         $url = new moodle_url('http://www.example.org:447/my/file/is/here.txt?really=1');
 205         $this->assertSame('/my/file/is/here.txt', $url->get_path());
 206
 207         $url = new moodle_url('http://www.example.org/');
 208         $this->assertSame('/', $url->get_path());
 209
 210         $url = new moodle_url('http://www.example.org/pluginfile.php/slash/arguments');
 211         $this->assertSame('/pluginfile.php/slash/arguments', $url->get_path());
 212         $this->assertSame('/pluginfile.php', $url->get_path(false));
 213     }
 214
 215     public function test_moodle_url_round_trip() {
 216         $strurl = 'http://moodle.org/course/view.php?id=5';
 217         $url = new moodle_url($strurl);
 218         $this->assertSame($strurl, $url->out(false));
 219
 220         $strurl = 'http://moodle.org/user/index.php?contextid=53&sifirst=M&silast=D';
 221         $url = new moodle_url($strurl);
 222         $this->assertSame($strurl, $url->out(false));
 223     }
 224
 225     /**
 226      * Test Moodle URL objects created with a param with empty value.
 227      */
 228     public function test_moodle_url_empty_param_values() {
 229         $strurl = 'http://moodle.org/course/view.php?id=0';
 230         $url = new moodle_url($strurl, array('id' => 0));
 231         $this->assertSame($strurl, $url->out(false));
 232
 233         $strurl = 'http://moodle.org/course/view.php?id';
 234         $url = new moodle_url($strurl, array('id' => false));
 235         $this->assertSame($strurl, $url->out(false));
 236
 237         $strurl = 'http://moodle.org/course/view.php?id';
 238         $url = new moodle_url($strurl, array('id' => null));
 239         $this->assertSame($strurl, $url->out(false));
 240
 241         $strurl = 'http://moodle.org/course/view.php?id';
 242         $url = new moodle_url($strurl, array('id' => ''));
 243         $this->assertSame($strurl, $url->out(false));
 244
 245         $strurl = 'http://moodle.org/course/view.php?id';
 246         $url = new moodle_url($strurl);
 247         $this->assertSame($strurl, $url->out(false));
 248     }
 249
 250     /**
 251      * Test set good scheme on Moodle URL objects.
 252      */
 253     public function test_moodle_url_set_good_scheme() {
 254         $url = new moodle_url('http://moodle.org/foo/bar');
 255         $url->set_scheme('myscheme');
 256         $this->assertSame('myscheme://moodle.org/foo/bar', $url->out());
 257     }
 258
 259     /**
 260      * Test set bad scheme on Moodle URL objects.
 261      *
 262      * @expectedException coding_exception
 263      */
 264     public function test_moodle_url_set_bad_scheme() {
 265         $url = new moodle_url('http://moodle.org/foo/bar');
 266         $url->set_scheme('not a valid $ scheme');
 267     }
 268
 269     public function test_moodle_url_round_trip_array_params() {
 270         $strurl = 'http://example.com/?a%5B1%5D=1&a%5B2%5D=2';
 271         $url = new moodle_url($strurl);
 272         $this->assertSame($strurl, $url->out(false));
 273
 274         $url = new moodle_url('http://example.com/?a[1]=1&a[2]=2');
 275         $this->assertSame($strurl, $url->out(false));
 276
 277         // For un-keyed array params, we expect 0..n keys to be returned.
 278         $strurl = 'http://example.com/?a%5B0%5D=0&a%5B1%5D=1';
 279         $url = new moodle_url('http://example.com/?a[]=0&a[]=1');
 280         $this->assertSame($strurl, $url->out(false));
 281     }
 282
 283     public function test_compare_url() {
 284         $url1 = new moodle_url('index.php', array('var1' => 1, 'var2' => 2));
 285         $url2 = new moodle_url('index2.php', array('var1' => 1, 'var2' => 2, 'var3' => 3));
 286
 287         $this->assertFalse($url1->compare($url2, URL_MATCH_BASE));
 288         $this->assertFalse($url1->compare($url2, URL_MATCH_PARAMS));
 289         $this->assertFalse($url1->compare($url2, URL_MATCH_EXACT));
 290
 291         $url2 = new moodle_url('index.php', array('var1' => 1, 'var3' => 3));
 292
 293         $this->assertTrue($url1->compare($url2, URL_MATCH_BASE));
 294         $this->assertFalse($url1->compare($url2, URL_MATCH_PARAMS));
 295         $this->assertFalse($url1->compare($url2, URL_MATCH_EXACT));
 296
 297         $url2 = new moodle_url('index.php', array('var1' => 1, 'var2' => 2, 'var3' => 3));
 298
 299         $this->assertTrue($url1->compare($url2, URL_MATCH_BASE));
 300         $this->assertTrue($url1->compare($url2, URL_MATCH_PARAMS));
 301         $this->assertFalse($url1->compare($url2, URL_MATCH_EXACT));
 302
 303         $url2 = new moodle_url('index.php', array('var2' => 2, 'var1' => 1));
 304
 305         $this->assertTrue($url1->compare($url2, URL_MATCH_BASE));
 306         $this->assertTrue($url1->compare($url2, URL_MATCH_PARAMS));
 307         $this->assertTrue($url1->compare($url2, URL_MATCH_EXACT));
 308
 309         $url1->set_anchor('test');
 310         $this->assertTrue($url1->compare($url2, URL_MATCH_BASE));
 311         $this->assertTrue($url1->compare($url2, URL_MATCH_PARAMS));
 312         $this->assertFalse($url1->compare($url2, URL_MATCH_EXACT));
 313
 314         $url2->set_anchor('test');
 315         $this->assertTrue($url1->compare($url2, URL_MATCH_BASE));
 316         $this->assertTrue($url1->compare($url2, URL_MATCH_PARAMS));
 317         $this->assertTrue($url1->compare($url2, URL_MATCH_EXACT));
 318     }
 319
 320     public function test_out_as_local_url() {
 321         global $CFG;
 322         // Test http url.
 323         $url1 = new moodle_url('/lib/tests/weblib_test.php');
 324         $this->assertSame('/lib/tests/weblib_test.php', $url1->out_as_local_url());
 325
 326         // Test https url.
 327         $httpswwwroot = str_replace("http://", "https://", $CFG->wwwroot);
 328         $url2 = new moodle_url($httpswwwroot.'/login/profile.php');
 329         $this->assertSame('/login/profile.php', $url2->out_as_local_url());
 330
 331         // Test http url matching wwwroot.
 332         $url3 = new moodle_url($CFG->wwwroot);
 333         $this->assertSame('', $url3->out_as_local_url());
 334
 335         // Test http url matching wwwroot ending with slash (/).
 336         $url3 = new moodle_url($CFG->wwwroot.'/');
 337         $this->assertSame('/', $url3->out_as_local_url());
 338     }
 339
 340     /**
 341      * @expectedException coding_exception
 342      * @return void
 343      */
 344     public function test_out_as_local_url_error() {
 345         $url2 = new moodle_url('http://www.google.com/lib/tests/weblib_test.php');
 346         $url2->out_as_local_url();
 347     }
 348
 349     /**
 350      * You should get error with modified url
 351      *
 352      * @expectedException coding_exception
 353      * @return void
 354      */
 355     public function test_modified_url_out_as_local_url_error() {
 356         global $CFG;
 357
 358         $modifiedurl = $CFG->wwwroot.'1';
 359         $url3 = new moodle_url($modifiedurl.'/login/profile.php');
 360         $url3->out_as_local_url();
 361     }
 362
 363     /**
 364      * Try get local url from external https url and you should get error
 365      *
 366      * @expectedException coding_exception
 367      */
 368     public function test_https_out_as_local_url_error() {
 369         $url4 = new moodle_url('https://www.google.com/lib/tests/weblib_test.php');
 370         $url4->out_as_local_url();
 371     }
 372
 373     public function test_moodle_url_get_scheme() {
 374         // Should return the scheme only.
 375         $url = new moodle_url('http://www.example.org:447/my/file/is/here.txt?really=1');
 376         $this->assertSame('http', $url->get_scheme());
 377
 378         // Should work for secure URLs.
 379         $url = new moodle_url('https://www.example.org:447/my/file/is/here.txt?really=1');
 380         $this->assertSame('https', $url->get_scheme());
 381
 382         // Should return an empty string if no scheme is specified.
 383         $url = new moodle_url('www.example.org:447/my/file/is/here.txt?really=1');
 384         $this->assertSame('', $url->get_scheme());
 385     }
 386
 387     public function test_moodle_url_get_host() {
 388         // Should return the host part only.
 389         $url = new moodle_url('http://www.example.org:447/my/file/is/here.txt?really=1');
 390         $this->assertSame('www.example.org', $url->get_host());
 391     }
 392
 393     public function test_moodle_url_get_port() {
 394         // Should return the port if one provided.
 395         $url = new moodle_url('http://www.example.org:447/my/file/is/here.txt?really=1');
 396         $this->assertSame(447, $url->get_port());
 397
 398         // Should return an empty string if port not specified.
 399         $url = new moodle_url('http://www.example.org/some/path/here.php');
 400         $this->assertSame('', $url->get_port());
 401     }
 402
 403     public function test_clean_text() {
 404         $text = "lala <applet>xx</applet>";
 405         $this->assertSame($text, clean_text($text, FORMAT_PLAIN));
 406         $this->assertSame('lala xx', clean_text($text, FORMAT_MARKDOWN));
 407         $this->assertSame('lala xx', clean_text($text, FORMAT_MOODLE));
 408         $this->assertSame('lala xx', clean_text($text, FORMAT_HTML));
 409     }
 410
 411     public function test_qualified_me() {
 412         global $PAGE, $FULLME, $CFG;
 413         $this->resetAfterTest();
 414
 415         $PAGE = new moodle_page();
 416
 417         $FULLME = $CFG->wwwroot.'/course/view.php?id=1&xx=yy';
 418         $this->assertSame($FULLME, qualified_me());
 419
 420         $PAGE->set_url('/course/view.php', array('id'=>1));
 421         $this->assertSame($CFG->wwwroot.'/course/view.php?id=1', qualified_me());
 422     }
 423
 424     public function test_null_progres_trace() {
 425         $this->resetAfterTest(false);
 426
 427         $trace = new null_progress_trace();
 428         $trace->output('do');
 429         $trace->output('re', 1);
 430         $trace->output('mi', 2);
 431         $trace->finished();
 432         $output = ob_get_contents();
 433         $this->assertSame('', $output);
 434         $this->expectOutputString('');
 435     }
 436
 437     public function test_text_progres_trace() {
 438         $this->resetAfterTest(false);
 439
 440         $trace = new text_progress_trace();
 441         $trace->output('do');
 442         $trace->output('re', 1);
 443         $trace->output('mi', 2);
 444         $trace->finished();
 445         $this->expectOutputString("do\n  re\n    mi\n");
 446     }
 447
 448     public function test_html_progres_trace() {
 449         $this->resetAfterTest(false);
 450
 451         $trace = new html_progress_trace();
 452         $trace->output('do');
 453         $trace->output('re', 1);
 454         $trace->output('mi', 2);
 455         $trace->finished();
 456         $this->expectOutputString("<p>do</p>\n<p>&#160;&#160;re</p>\n<p>&#160;&#160;&#160;&#160;mi</p>\n");
 457     }
 458
 459     public function test_html_list_progress_trace() {
 460         $this->resetAfterTest(false);
 461
 462         $trace = new html_list_progress_trace();
 463         $trace->output('do');
 464         $trace->output('re', 1);
 465         $trace->output('mi', 2);
 466         $trace->finished();
 467         $this->expectOutputString("<ul>\n<li>do<ul>\n<li>re<ul>\n<li>mi</li>\n</ul>\n</li>\n</ul>\n</li>\n</ul>\n");
 468     }
 469
 470     public function test_progres_trace_buffer() {
 471         $this->resetAfterTest(false);
 472
 473         $trace = new progress_trace_buffer(new html_progress_trace());
 474         ob_start();
 475         $trace->output('do');
 476         $trace->output('re', 1);
 477         $trace->output('mi', 2);
 478         $trace->finished();
 479         $output = ob_get_contents();
 480         ob_end_clean();
 481         $this->assertSame("<p>do</p>\n<p>&#160;&#160;re</p>\n<p>&#160;&#160;&#160;&#160;mi</p>\n", $output);
 482         $this->assertSame($output, $trace->get_buffer());
 483
 484         $trace = new progress_trace_buffer(new html_progress_trace(), false);
 485         $trace->output('do');
 486         $trace->output('re', 1);
 487         $trace->output('mi', 2);
 488         $trace->finished();
 489         $this->assertSame("<p>do</p>\n<p>&#160;&#160;re</p>\n<p>&#160;&#160;&#160;&#160;mi</p>\n", $trace->get_buffer());
 490         $this->assertSame("<p>do</p>\n<p>&#160;&#160;re</p>\n<p>&#160;&#160;&#160;&#160;mi</p>\n", $trace->get_buffer());
 491         $trace->reset_buffer();
 492         $this->assertSame('', $trace->get_buffer());
 493         $this->expectOutputString('');
 494     }
 495
 496     public function test_combined_progres_trace() {
 497         $this->resetAfterTest(false);
 498
 499         $trace1 = new progress_trace_buffer(new html_progress_trace(), false);
 500         $trace2 = new progress_trace_buffer(new text_progress_trace(), false);
 501
 502         $trace = new combined_progress_trace(array($trace1, $trace2));
 503         $trace->output('do');
 504         $trace->output('re', 1);
 505         $trace->output('mi', 2);
 506         $trace->finished();
 507         $this->assertSame("<p>do</p>\n<p>&#160;&#160;re</p>\n<p>&#160;&#160;&#160;&#160;mi</p>\n", $trace1->get_buffer());
 508         $this->assertSame("do\n  re\n    mi\n", $trace2->get_buffer());
 509         $this->expectOutputString('');
 510     }
 511
 512     public function test_set_debugging() {
 513         global $CFG;
 514
 515         $this->resetAfterTest();
 516
 517         $this->assertEquals(DEBUG_DEVELOPER, $CFG->debug);
 518         $this->assertTrue($CFG->debugdeveloper);
 519         $this->assertNotEmpty($CFG->debugdisplay);
 520
 521         set_debugging(DEBUG_DEVELOPER, true);
 522         $this->assertEquals(DEBUG_DEVELOPER, $CFG->debug);
 523         $this->assertTrue($CFG->debugdeveloper);
 524         $this->assertNotEmpty($CFG->debugdisplay);
 525
 526         set_debugging(DEBUG_DEVELOPER, false);
 527         $this->assertEquals(DEBUG_DEVELOPER, $CFG->debug);
 528         $this->assertTrue($CFG->debugdeveloper);
 529         $this->assertEmpty($CFG->debugdisplay);
 530
 531         set_debugging(-1);
 532         $this->assertEquals(-1, $CFG->debug);
 533         $this->assertTrue($CFG->debugdeveloper);
 534
 535         set_debugging(DEBUG_ALL);
 536         $this->assertEquals(DEBUG_ALL, $CFG->debug);
 537         $this->assertFalse($CFG->debugdeveloper);
 538
 539         set_debugging(DEBUG_NORMAL);
 540         $this->assertEquals(DEBUG_NORMAL, $CFG->debug);
 541         $this->assertFalse($CFG->debugdeveloper);
 542
 543         set_debugging(DEBUG_MINIMAL);
 544         $this->assertEquals(DEBUG_MINIMAL, $CFG->debug);
 545         $this->assertFalse($CFG->debugdeveloper);
 546
 547         set_debugging(DEBUG_NONE);
 548         $this->assertEquals(DEBUG_NONE, $CFG->debug);
 549         $this->assertFalse($CFG->debugdeveloper);
 550     }
 551
 552     public function test_strip_pluginfile_content() {
 553         $source = <<<SOURCE
 554 Hello!
 555
 556 I'm writing to you from the Moodle Majlis in Muscat, Oman, where we just had several days of Moodle community goodness.
 557
 558 URL outside a tag: https://moodle.org/logo/logo-240x60.gif
 559 Plugin url outside a tag: @@PLUGINFILE@@/logo-240x60.gif
 560
 561 External link 1:<img src='https://moodle.org/logo/logo-240x60.gif' alt='Moodle'/>
 562 External link 2:<img alt="Moodle" src="https://moodle.org/logo/logo-240x60.gif"/>
 563 Internal link 1:<img src='@@PLUGINFILE@@/logo-240x60.gif' alt='Moodle'/>
 564 Internal link 2:<img alt="Moodle" src="@@PLUGINFILE@@logo-240x60.gif"/>
 565 Anchor link 1:<a href="@@PLUGINFILE@@logo-240x60.gif" alt="bananas">Link text</a>
 566 Anchor link 2:<a title="bananas" href="../logo-240x60.gif">Link text</a>
 567 Anchor + ext. img:<a title="bananas" href="../logo-240x60.gif"><img alt="Moodle" src="@@PLUGINFILE@@logo-240x60.gif"/></a>
 568 Ext. anchor + img:<a href="@@PLUGINFILE@@logo-240x60.gif"><img alt="Moodle" src="https://moodle.org/logo/logo-240x60.gif"/></a>
 569 SOURCE;
 570         $expected = <<<EXPECTED
 571 Hello!
 572
 573 I'm writing to you from the Moodle Majlis in Muscat, Oman, where we just had several days of Moodle community goodness.
 574
 575 URL outside a tag: https://moodle.org/logo/logo-240x60.gif
 576 Plugin url outside a tag: @@PLUGINFILE@@/logo-240x60.gif
 577
 578 External link 1:<img src="https://moodle.org/logo/logo-240x60.gif" alt="Moodle" />
 579 External link 2:<img alt="Moodle" src="https://moodle.org/logo/logo-240x60.gif" />
 580 Internal link 1:
 581 Internal link 2:
 582 Anchor link 1:Link text
 583 Anchor link 2:<a title="bananas" href="../logo-240x60.gif">Link text</a>
 584 Anchor + ext. img:<a title="bananas" href="../logo-240x60.gif"></a>
 585 Ext. anchor + img:<img alt="Moodle" src="https://moodle.org/logo/logo-240x60.gif" />
 586 EXPECTED;
 587         $this->assertSame($expected, strip_pluginfile_content($source));
 588     }
 589
 590     public function test_purify_html_ruby() {
 591
 592         $this->resetAfterTest();
 593
 594         $ruby =
 595             "<p><ruby><rb>京都</rb><rp>(</rp><rt>きょうと</rt><rp>)</rp></ruby>は" .
 596             "<ruby><rb>日本</rb><rp>(</rp><rt>にほん</rt><rp>)</rp></ruby>の" .
 597             "<ruby><rb>都</rb><rp>(</rp><rt>みやこ</rt><rp>)</rp></ruby>です。</p>";
 598         $illegal = '<script src="//code.jquery.com/jquery-1.11.3.min.js"></script>';
 599
 600         $cleaned = purify_html($ruby . $illegal);
 601         $this->assertEquals($ruby, $cleaned);
 602
 603     }
 604
 605     /**
 606      * Tests for content_to_text.
 607      *
 608      * @param string    $content   The content
 609      * @param int|false $format    The content format
 610      * @param string    $expected  Expected value
 611      * @dataProvider provider_content_to_text
 612      */
 613     public function test_content_to_text($content, $format, $expected) {
 614         $content = content_to_text($content, $format);
 615         $this->assertEquals($expected, $content);
 616     }
 617
 618     /**
 619      * Data provider for test_content_to_text.
 620      */
 621     public static function provider_content_to_text() {
 622         return array(
 623             array('asd', false, 'asd'),
 624             // Trim '\r\n '.
 625             array("Note that:\n\n3 > 1 ", FORMAT_PLAIN, "Note that:\n\n3 > 1"),
 626             array("Note that:\n\n3 > 1\r\n", FORMAT_PLAIN, "Note that:\n\n3 > 1"),
 627             // Multiple spaces to one.
 628             array('<span class="eheh">京都</span>  ->  hehe', FORMAT_HTML, '京都 -> hehe'),
 629             array('<span class="eheh">京都</span>  ->  hehe', false, '京都 -> hehe'),
 630             array('asd    asd', false, 'asd asd'),
 631             // From markdown to html and html to text.
 632             array('asd __lera__ con la', FORMAT_MARKDOWN, 'asd LERA con la'),
 633             // HTML to text.
 634             array('<p class="frogs">This is a <strong class=\'fishes\'>test</strong></p>', FORMAT_HTML, 'This is a TEST'),
 635             array("<span lang='en' class='multilang'>english</span>
 636 <span lang='ca' class='multilang'>català</span>
 637 <span lang='es' class='multilang'>español</span>
 638 <span lang='fr' class='multilang'>français</span>", FORMAT_HTML, "english català español français")
 639         );
 640     }
 641
 642 }