Proyectos de Subversion Moodle

<?php

// This file is part of Moodle - http://moodle.org/

//

// Moodle is free software: you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation, either version 3 of the License, or

// (at your option) any later version.

//

// Moodle is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**

 * Weblib tests.

 *

 * @package    core

 * @category   phpunit

 * @copyright  © 2006 The Open University

 * @author     T.J.Hunt@open.ac.uk

 * @license    http://www.gnu.org/copyleft/gpl.html GNU Public License

 */

class weblib_test extends advanced_testcase {

    /**

     * @covers ::s

     */

    public function test_s() {

        // Special cases.

        $this->assertSame('0', s(0));

        $this->assertSame('0', s('0'));

        $this->assertSame('0', s(false));

        $this->assertSame('', s(null));

        // Normal cases.

        $this->assertSame('This Breaks " Strict', s('This Breaks " Strict'));

        $this->assertSame('This Breaks &lt;a&gt;&quot; Strict&lt;/a&gt;', s('This Breaks <a>" Strict</a>'));

        // Unicode characters.

        $this->assertSame('Café', s('Café'));

        $this->assertSame('一, 二, 三', s('一, 二, 三'));

        // Don't escape already-escaped numeric entities. (Note, this behaviour

        // may not be desirable. Perhaps we should remove these tests and that

        // functionality, but we can only do that if we understand why it was added.)

        $this->assertSame('An entity: ৿.', s('An entity: ৿.'));

        $this->assertSame('An entity: б.', s('An entity: б.'));

        $this->assertSame('An entity: &.', s('An entity: &.'));

        $this->assertSame('Not an entity: ৿.', s('Not an entity: ৿.'));

        // Test all ASCII characters (0-127).

        for ($i = 0; $i <= 127; $i++) {

            $character = chr($i);

            $result = s($character);

            switch ($character) {

                case '"' :

                    $this->assertSame('"', $result);

                    break;

                case '&' :

                    $this->assertSame('&', $result);

                    break;

                case "'" :

                    $this->assertSame(''', $result);

                    break;

                case '<' :

                    $this->assertSame('<', $result);

                    break;

                case '>' :

                    $this->assertSame('>', $result);

                    break;

                default:

                    $this->assertSame($character, $result);

                    break;

            }

        }

    }

    /**

     * Test the format_string illegal options handling.

     *

     * @covers ::format_string

     * @dataProvider format_string_illegal_options_provider

     */

    public function test_format_string_illegal_options(

        string $input,

        string $result,

        mixed $options,

        string $pattern,

    ): void {

        $this->assertEquals(

            $result,

            format_string($input, false, $options),

        );

        $messages = $this->getDebuggingMessages();

        $this->assertdebuggingcalledcount(1);

        $this->assertMatchesRegularExpression(

            "/{$pattern}/",

            $messages[0]->message,

        );

    }

    /**

     * Data provider for test_format_string_illegal_options.

     * @return array

     */

    public static function format_string_illegal_options_provider(): array {

        return [

            [

                'Example',

                'Example',

                \core\context\system::instance(),

                preg_quote('The options argument should not be a context object directly.'),

            ],

            [

                'Example',

                'Example',

                true,

                preg_quote('The options argument should be an Array, or stdclass. boolean passed.'),

            ],

            [

                'Example',

                'Example',

                false,

                preg_quote('The options argument should be an Array, or stdclass. boolean passed.'),

            ],

        ];

    }

    /**

     * Ensure that if format_string is called with a context as the third param, that a debugging notice is emitted.

     *

     * @covers ::format_string

     */

    public function test_format_string_context(): void {

        global $CFG;

        $this->resetAfterTest(true);

        // Disable the formatstringstriptags option to ensure that the HTML tags are not stripped.

        $CFG->stringfilters = 'multilang';

        // Enable filters.

        $CFG->filterall = true;

        $course = $this->getDataGenerator()->create_course();

        $coursecontext = \core\context\course::instance($course->id);

        // Set up the multilang filter at the system context, but disable it at the course.

        filter_set_global_state('multilang', TEXTFILTER_ON);

        filter_set_local_state('multilang', $coursecontext->id, TEXTFILTER_OFF);

        // Previously, if a context was passed, it was converted into an Array, and ignored.

        // The PAGE context was used instead -- often this is the system context.

        $input = 'I really <span lang="en" class="multilang">do not </span><span lang="de" class="multilang">do not </span>like this!';

        $result = format_string(

            $input,

            true,

            $coursecontext,

        );

        // We emit a debugging notice to alert that the context has been moved to the options.

        $this->assertdebuggingcalledcount(1);

        // Check the result was _not_ filtered.

        $this->assertEquals(

            // Tags are stripped out due to striptags.

            "I really do not do not like this!",

            $result,

        );

        // But it should be filtered if called with the system context.

        $result = format_string(

            $input,

            true,

            ['context' => \core\context\system::instance()],

        );

        $this->assertEquals(

            'I really do not like this!',

            $result,

        );

    }

    /**

     * @covers ::format_text_email

     */

    public function test_format_text_email() {

        $this->assertSame("This is a TEST\n",

            format_text_email('<p>This is a <strong>test</strong></p>', FORMAT_HTML));

        $this->assertSame("This is a TEST\n",

            format_text_email('<p class="frogs">This is a <strong class=\'fishes\'>test</strong></p>', FORMAT_HTML));

        $this->assertSame('& so is this',

            format_text_email('& so is this', FORMAT_HTML));

        $this->assertSame('Two bullets: ' . core_text::code2utf8(8226) . ' ' . core_text::code2utf8(8226),

            format_text_email('Two bullets: • •', FORMAT_HTML));

        $this->assertSame(core_text::code2utf8(0x7fd2).core_text::code2utf8(0x7fd2),

            format_text_email('習習', FORMAT_HTML));

    }

    /**

     * @covers ::obfuscate_email

     */

    public function test_obfuscate_email() {

        $email = 'some.user@example.com';

        $obfuscated = obfuscate_email($email);

        $this->assertNotSame($email, $obfuscated);

        $back = core_text::entities_to_utf8(urldecode($email), true);

        $this->assertSame($email, $back);

    }

    /**

     * @covers ::obfuscate_text

     */

    public function test_obfuscate_text() {

        $text = 'Žluťoučký koníček 32131';

        $obfuscated = obfuscate_text($text);

        $this->assertNotSame($text, $obfuscated);

        $back = core_text::entities_to_utf8($obfuscated, true);

        $this->assertSame($text, $back);

    }

    /**

     * @covers ::highlight

     */

    public function test_highlight() {

        $this->assertSame('This is <span class="highlight">good</span>',

                highlight('good', 'This is good'));

        $this->assertSame('<span class="highlight">span</span>',

                highlight('SpaN', 'span'));

        $this->assertSame('<span class="highlight">SpaN</span>',

                highlight('span', 'SpaN'));

        $this->assertSame('<span><span class="highlight">span</span></span>',

                highlight('span', '<span>span</span>'));

        $this->assertSame('He <span class="highlight">is</span> <span class="highlight">good</span>',

                highlight('good is', 'He is good'));

        $this->assertSame('This is <span class="highlight">good</span>',

                highlight('+good', 'This is good'));

        $this->assertSame('This is good',

                highlight('-good', 'This is good'));

        $this->assertSame('This is goodness',

                highlight('+good', 'This is goodness'));

        $this->assertSame('This is <span class="highlight">good</span>ness',

                highlight('good', 'This is goodness'));

        $this->assertSame('<p><b>test</b> <b>1</b></p><p><b>1</b></p>',

                highlight('test 1', '<p>test 1</p><p>1</p>', false, '<b>', '</b>'));

        $this->assertSame('<p><b>test</b> <b>1</b></p><p><b>1</b></p>',

                    highlight('test +1', '<p>test 1</p><p>1</p>', false, '<b>', '</b>'));

        $this->assertSame('<p><b>test</b> 1</p><p>1</p>',

                    highlight('test -1', '<p>test 1</p><p>1</p>', false, '<b>', '</b>'));

    }

    /**

     * @covers ::replace_ampersands_not_followed_by_entity

     */

    public function test_replace_ampersands() {

        $this->assertSame("This & that  ", replace_ampersands_not_followed_by_entity("This & that  "));

        $this->assertSame("This &nbsp that  ", replace_ampersands_not_followed_by_entity("This &nbsp that  "));

    }

    /**

     * @covers ::strip_links

     */

    public function test_strip_links() {

        $this->assertSame('this is a link', strip_links('this is a <a href="http://someaddress.com/query">link</a>'));

    }

    /**

     * @covers ::wikify_links

     */

    public function test_wikify_links() {

        $this->assertSame('this is a link [ http://someaddress.com/query ]', wikify_links('this is a <a href="http://someaddress.com/query">link</a>'));

    }

    /**

     * @covers ::clean_text

     */

    public function test_clean_text() {

        $text = "lala <applet>xx</applet>";

        $this->assertSame($text, clean_text($text, FORMAT_PLAIN));

        $this->assertSame('lala xx', clean_text($text, FORMAT_MARKDOWN));

        $this->assertSame('lala xx', clean_text($text, FORMAT_MOODLE));

        $this->assertSame('lala xx', clean_text($text, FORMAT_HTML));

    }

    /**

     * Test trusttext enabling.

     *

     * @covers ::trusttext_active

     */

    public function test_trusttext_active() {

        global $CFG;

        $this->resetAfterTest();

        $this->assertFalse(trusttext_active());

        $CFG->enabletrusttext = '1';

        $this->assertTrue(trusttext_active());

    }

    /**

     * Test trusttext detection.

     *

     * @covers ::trusttext_trusted

     */

    public function test_trusttext_trusted() {

        global $CFG;

        $this->resetAfterTest();

        $syscontext = context_system::instance();

        $course = $this->getDataGenerator()->create_course();

        $coursecontext = context_course::instance($course->id);

        $user1 = $this->getDataGenerator()->create_user();

        $user2 = $this->getDataGenerator()->create_user();

        $this->getDataGenerator()->enrol_user($user2->id, $course->id, 'editingteacher');

        $this->setAdminUser();

        $CFG->enabletrusttext = '0';

        $this->assertFalse(trusttext_trusted($syscontext));

        $this->assertFalse(trusttext_trusted($coursecontext));

        $CFG->enabletrusttext = '1';

        $this->assertTrue(trusttext_trusted($syscontext));

        $this->assertTrue(trusttext_trusted($coursecontext));

        $this->setUser($user1);

        $CFG->enabletrusttext = '0';

        $this->assertFalse(trusttext_trusted($syscontext));

        $this->assertFalse(trusttext_trusted($coursecontext));

        $CFG->enabletrusttext = '1';

        $this->assertFalse(trusttext_trusted($syscontext));

        $this->assertFalse(trusttext_trusted($coursecontext));

        $this->setUser($user2);

        $CFG->enabletrusttext = '0';

        $this->assertFalse(trusttext_trusted($syscontext));

        $this->assertFalse(trusttext_trusted($coursecontext));

        $CFG->enabletrusttext = '1';

        $this->assertFalse(trusttext_trusted($syscontext));

        $this->assertTrue(trusttext_trusted($coursecontext));

    }

    /**

     * Data provider for trusttext_pre_edit() tests.

     */

    public function trusttext_pre_edit_provider(): array {

        return [

            [true, 0, 'editingteacher', FORMAT_HTML, 1],

            [true, 0, 'editingteacher', FORMAT_MOODLE, 1],

            [false, 0, 'editingteacher', FORMAT_MARKDOWN, 1],

            [false, 0, 'editingteacher', FORMAT_PLAIN, 1],

            [false, 1, 'editingteacher', FORMAT_HTML, 1],

            [false, 1, 'editingteacher', FORMAT_MOODLE, 1],

            [false, 1, 'editingteacher', FORMAT_MARKDOWN, 1],

            [false, 1, 'editingteacher', FORMAT_PLAIN, 1],

            [true, 0, 'student', FORMAT_HTML, 1],

            [true, 0, 'student', FORMAT_MOODLE, 1],

            [false, 0, 'student', FORMAT_MARKDOWN, 1],

            [false, 0, 'student', FORMAT_PLAIN, 1],

            [true, 1, 'student', FORMAT_HTML, 1],

            [true, 1, 'student', FORMAT_MOODLE, 1],

            [false, 1, 'student', FORMAT_MARKDOWN, 1],

            [false, 1, 'student', FORMAT_PLAIN, 1],

        ];

    }

    /**

     * Test text cleaning before editing.

     *

     * @dataProvider trusttext_pre_edit_provider

     * @covers ::trusttext_pre_edit

     *

     * @param bool $expectedsanitised

     * @param int $enabled

     * @param string $rolename

     * @param string $format

     * @param int $trust

     */

    public function test_trusttext_pre_edit(bool $expectedsanitised, int $enabled, string $rolename,

                                            string $format, int $trust) {

        global $CFG, $DB;

        $this->resetAfterTest();

        $exploit = "abc<script>alert('xss')</script> < > &";

        $sanitised = purify_html($exploit);

        $course = $this->getDataGenerator()->create_course();

        $context = context_course::instance($course->id);

        $user = $this->getDataGenerator()->create_user();

        $this->getDataGenerator()->enrol_user($user->id, $course->id, $rolename);

        $this->setUser($user);

        $CFG->enabletrusttext = (string)$enabled;

        $object = new stdClass();

        $object->some = $exploit;

        $object->someformat = $format;

        $object->sometrust = (string)$trust;

        $result = trusttext_pre_edit(clone($object), 'some', $context);

        if ($expectedsanitised) {

            $message = "sanitisation is expected for: $enabled, $rolename, $format, $trust";

            $this->assertSame($sanitised, $result->some, $message);

        } else {

            $message = "sanitisation is not expected for: $enabled, $rolename, $format, $trust";

            $this->assertSame($exploit, $result->some, $message);

        }

    }

    /**

     * Test removal of legacy trusttext flag.

     * @covers ::trusttext_strip

     */

    public function test_trusttext_strip() {

        $this->assertSame('abc', trusttext_strip('abc'));

        $this->assertSame('abc', trusttext_strip('ab#####TRUSTTEXT#####c'));

    }

    /**

     * Test trust option of format_text().

     * @covers ::format_text

     */

    public function test_format_text_trusted() {

        global $CFG;

        $this->resetAfterTest();

        $text = "lala <object>xx</object>";

        $CFG->enabletrusttext = 0;

        $this->assertSame(s($text),

            format_text($text, FORMAT_PLAIN, ['trusted' => true]));

        $this->assertSame("<p>lala xx</p>\n",

            format_text($text, FORMAT_MARKDOWN, ['trusted' => true]));

        $this->assertSame('<div class="text_to_html">lala xx</div>',

            format_text($text, FORMAT_MOODLE, ['trusted' => true]));

        $this->assertSame('lala xx',

            format_text($text, FORMAT_HTML, ['trusted' => true]));

        $this->assertSame(s($text),

            format_text($text, FORMAT_PLAIN, ['trusted' => false]));

        $this->assertSame("<p>lala xx</p>\n",

            format_text($text, FORMAT_MARKDOWN, ['trusted' => false]));

        $this->assertSame('<div class="text_to_html">lala xx</div>',

            format_text($text, FORMAT_MOODLE, ['trusted' => false]));

        $this->assertSame('lala xx',

            format_text($text, FORMAT_HTML, ['trusted' => false]));

        $CFG->enabletrusttext = 1;

        $this->assertSame(s($text),

            format_text($text, FORMAT_PLAIN, ['trusted' => true]));

        $this->assertSame("<p>lala xx</p>\n",

            format_text($text, FORMAT_MARKDOWN, ['trusted' => true]));

        $this->assertSame('<div class="text_to_html">lala <object>xx</object></div>',

            format_text($text, FORMAT_MOODLE, ['trusted' => true]));

        $this->assertSame('lala <object>xx</object>',

            format_text($text, FORMAT_HTML, ['trusted' => true]));

        $this->assertSame(s($text),

            format_text($text, FORMAT_PLAIN, ['trusted' => false]));

        $this->assertSame("<p>lala xx</p>\n",

            format_text($text, FORMAT_MARKDOWN, ['trusted' => false]));

        $this->assertSame('<div class="text_to_html">lala xx</div>',

            format_text($text, FORMAT_MOODLE, ['trusted' => false]));

        $this->assertSame('lala xx',

            format_text($text, FORMAT_HTML, ['trusted' => false]));

        $this->assertSame("<p>lala <object>xx</object></p>\n",

            format_text($text, FORMAT_MARKDOWN, ['trusted' => true, 'noclean' => true]));

        $this->assertSame("<p>lala <object>xx</object></p>\n",

            format_text($text, FORMAT_MARKDOWN, ['trusted' => false, 'noclean' => true]));

    }

    /**

     * @covers ::qualified_me

     */

    public function test_qualified_me() {

        global $PAGE, $FULLME, $CFG;

        $this->resetAfterTest();

        $PAGE = new moodle_page();

        $FULLME = $CFG->wwwroot.'/course/view.php?id=1&xx=yy';

        $this->assertSame($FULLME, qualified_me());

        $PAGE->set_url('/course/view.php', array('id'=>1));

        $this->assertSame($CFG->wwwroot.'/course/view.php?id=1', qualified_me());

    }

    /**

     * @covers \null_progress_trace

     */

    public function test_null_progress_trace() {

        $this->resetAfterTest(false);

        $trace = new null_progress_trace();

        $trace->output('do');

        $trace->output('re', 1);

        $trace->output('mi', 2);

        $trace->finished();

        $output = ob_get_contents();

        $this->assertSame('', $output);

        $this->expectOutputString('');

    }

    /**

     * @covers \null_progress_trace

     */

    public function test_text_progress_trace() {

        $this->resetAfterTest(false);

        $trace = new text_progress_trace();

        $trace->output('do');

        $trace->output('re', 1);

        $trace->output('mi', 2);

        $trace->finished();

        $this->expectOutputString("do\n  re\n    mi\n");

    }

    /**

     * @covers \html_progress_trace

     */

    public function test_html_progress_trace() {

        $this->resetAfterTest(false);

        $trace = new html_progress_trace();

        $trace->output('do');

        $trace->output('re', 1);

        $trace->output('mi', 2);

        $trace->finished();

        $this->expectOutputString("<p>do</p>\n<p>&#160;&#160;re</p>\n<p>&#160;&#160;&#160;&#160;mi</p>\n");

    }

    /**

     * @covers \html_list_progress_trace

     */

    public function test_html_list_progress_trace() {

        $this->resetAfterTest(false);

        $trace = new html_list_progress_trace();

        $trace->output('do');

        $trace->output('re', 1);

        $trace->output('mi', 2);

        $trace->finished();

        $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");

    }

    /**

     * @covers \progress_trace_buffer

     */

    public function test_progress_trace_buffer() {

        $this->resetAfterTest(false);

        $trace = new progress_trace_buffer(new html_progress_trace());

        ob_start();

        $trace->output('do');

        $trace->output('re', 1);

        $trace->output('mi', 2);

        $trace->finished();

        $output = ob_get_contents();

        ob_end_clean();

        $this->assertSame("<p>do</p>\n<p>&#160;&#160;re</p>\n<p>&#160;&#160;&#160;&#160;mi</p>\n", $output);

        $this->assertSame($output, $trace->get_buffer());

        $trace = new progress_trace_buffer(new html_progress_trace(), false);

        $trace->output('do');

        $trace->output('re', 1);

        $trace->output('mi', 2);

        $trace->finished();

        $this->assertSame("<p>do</p>\n<p>&#160;&#160;re</p>\n<p>&#160;&#160;&#160;&#160;mi</p>\n", $trace->get_buffer());

        $this->assertSame("<p>do</p>\n<p>&#160;&#160;re</p>\n<p>&#160;&#160;&#160;&#160;mi</p>\n", $trace->get_buffer());

        $trace->reset_buffer();

        $this->assertSame('', $trace->get_buffer());

        $this->expectOutputString('');

    }

    /**

     * @covers \combined_progress_trace

     */

    public function test_combined_progress_trace() {

        $this->resetAfterTest(false);

        $trace1 = new progress_trace_buffer(new html_progress_trace(), false);

        $trace2 = new progress_trace_buffer(new text_progress_trace(), false);

        $trace = new combined_progress_trace(array($trace1, $trace2));

        $trace->output('do');

        $trace->output('re', 1);

        $trace->output('mi', 2);

        $trace->finished();

        $this->assertSame("<p>do</p>\n<p>&#160;&#160;re</p>\n<p>&#160;&#160;&#160;&#160;mi</p>\n", $trace1->get_buffer());

        $this->assertSame("do\n  re\n    mi\n", $trace2->get_buffer());

        $this->expectOutputString('');

    }

    /**

     * @covers ::set_debugging

     */

    public function test_set_debugging() {

        global $CFG;

        $this->resetAfterTest();

        $this->assertEquals(DEBUG_DEVELOPER, $CFG->debug);

        $this->assertTrue($CFG->debugdeveloper);

        $this->assertNotEmpty($CFG->debugdisplay);

        set_debugging(DEBUG_DEVELOPER, true);

        $this->assertEquals(DEBUG_DEVELOPER, $CFG->debug);

        $this->assertTrue($CFG->debugdeveloper);

        $this->assertNotEmpty($CFG->debugdisplay);

        set_debugging(DEBUG_DEVELOPER, false);

        $this->assertEquals(DEBUG_DEVELOPER, $CFG->debug);

        $this->assertTrue($CFG->debugdeveloper);

        $this->assertEmpty($CFG->debugdisplay);

        set_debugging(-1);

        $this->assertEquals(-1, $CFG->debug);

        $this->assertTrue($CFG->debugdeveloper);

        set_debugging(DEBUG_ALL);

        $this->assertEquals(DEBUG_ALL, $CFG->debug);

        $this->assertFalse($CFG->debugdeveloper);

        set_debugging(DEBUG_NORMAL);

        $this->assertEquals(DEBUG_NORMAL, $CFG->debug);

        $this->assertFalse($CFG->debugdeveloper);

        set_debugging(DEBUG_MINIMAL);

        $this->assertEquals(DEBUG_MINIMAL, $CFG->debug);

        $this->assertFalse($CFG->debugdeveloper);

        set_debugging(DEBUG_NONE);

        $this->assertEquals(DEBUG_NONE, $CFG->debug);

        $this->assertFalse($CFG->debugdeveloper);

    }

    /**

     * @covers ::strip_pluginfile_content

     */

    public function test_strip_pluginfile_content() {

        $source = <<<SOURCE

Hello!

I'm writing to you from the Moodle Majlis in Muscat, Oman, where we just had several days of Moodle community goodness.

URL outside a tag: https://moodle.org/logo/logo-240x60.gif

Plugin url outside a tag: @@PLUGINFILE@@/logo-240x60.gif

External link 1:<img src='https://moodle.org/logo/logo-240x60.gif' alt='Moodle'/>

External link 2:<img alt="Moodle" src="https://moodle.org/logo/logo-240x60.gif"/>

Internal link 1:<img src='@@PLUGINFILE@@/logo-240x60.gif' alt='Moodle'/>

Internal link 2:<img alt="Moodle" src="@@PLUGINFILE@@logo-240x60.gif"/>

Anchor link 1:<a href="@@PLUGINFILE@@logo-240x60.gif" alt="bananas">Link text</a>

Anchor link 2:<a title="bananas" href="../logo-240x60.gif">Link text</a>

Anchor + ext. img:<a title="bananas" href="../logo-240x60.gif"><img alt="Moodle" src="@@PLUGINFILE@@logo-240x60.gif"/></a>

Ext. anchor + img:<a href="@@PLUGINFILE@@logo-240x60.gif"><img alt="Moodle" src="https://moodle.org/logo/logo-240x60.gif"/></a>

SOURCE;

        $expected = <<<EXPECTED

Hello!

I'm writing to you from the Moodle Majlis in Muscat, Oman, where we just had several days of Moodle community goodness.

URL outside a tag: https://moodle.org/logo/logo-240x60.gif

Plugin url outside a tag: @@PLUGINFILE@@/logo-240x60.gif

External link 1:<img src="https://moodle.org/logo/logo-240x60.gif" alt="Moodle" />

External link 2:<img alt="Moodle" src="https://moodle.org/logo/logo-240x60.gif" />

Internal link 1:

Internal link 2:

Anchor link 1:Link text

Anchor link 2:<a title="bananas" href="../logo-240x60.gif">Link text</a>

Anchor + ext. img:<a title="bananas" href="../logo-240x60.gif"></a>

Ext. anchor + img:<img alt="Moodle" src="https://moodle.org/logo/logo-240x60.gif" />

EXPECTED;

        $this->assertSame($expected, strip_pluginfile_content($source));

    }

    /**

     * @covers \purify_html

     */

    public function test_purify_html_ruby() {

        $this->resetAfterTest();

        $ruby =

            "<p><ruby><rb>京都</rb><rp>(</rp><rt>きょうと</rt><rp>)</rp></ruby>は" .

            "<ruby><rb>日本</rb><rp>(</rp><rt>にほん</rt><rp>)</rp></ruby>の" .

            "<ruby><rb>都</rb><rp>(</rp><rt>みやこ</rt><rp>)</rp></ruby>です。</p>";

        $illegal = '<script src="//code.jquery.com/jquery-1.11.3.min.js"></script>';

        $cleaned = purify_html($ruby . $illegal);

        $this->assertEquals($ruby, $cleaned);

    }

    /**

     * Tests for content_to_text.

     *

     * @param string    $content   The content

     * @param int|false $format    The content format

     * @param string    $expected  Expected value

     * @dataProvider provider_content_to_text

     * @covers ::content_to_text

     */

    public function test_content_to_text($content, $format, $expected) {

        $content = content_to_text($content, $format);

        $this->assertEquals($expected, $content);

    }

    /**

     * Data provider for test_content_to_text.

     */

    public static function provider_content_to_text() {

        return array(

            array('asd', false, 'asd'),

            // Trim '\r\n '.

            array("Note that:\n\n3 > 1 ", FORMAT_PLAIN, "Note that:\n\n3 > 1"),

            array("Note that:\n\n3 > 1\r\n", FORMAT_PLAIN, "Note that:\n\n3 > 1"),

            // Multiple spaces to one.

            array('<span class="eheh">京都</span>  ->  hehe', FORMAT_HTML, '京都 -> hehe'),

            array('<span class="eheh">京都</span>  ->  hehe', false, '京都 -> hehe'),

            array('asd    asd', false, 'asd asd'),

            // From markdown to html and html to text.

            array('asd __lera__ con la', FORMAT_MARKDOWN, 'asd LERA con la'),

            // HTML to text.

            array('<p class="frogs">This is a <strong class=\'fishes\'>test</strong></p>', FORMAT_HTML, 'This is a TEST'),

            array("<span lang='en' class='multilang'>english</span>

<span lang='ca' class='multilang'>català</span>

<span lang='es' class='multilang'>español</span>

<span lang='fr' class='multilang'>français</span>", FORMAT_HTML, "english català español français")

        );

    }

    /**

     * Data provider for validate_email() function.

     *

     * @return array Returns aray of test data for the test_validate_email function

     */

    public function data_validate_email() {

        return [

            // Test addresses that should pass.

            [

                'email' => 'moodle@example.com',

                'result' => true

            ],

            [

                'email' => 'moodle@localhost.local',

                'result' => true

            ],

            [

                'email' => 'verp_email+is=mighty@moodle.org',

                'result' => true

            ],

            [

                'email' => "but_potentially'dangerous'too@example.org",

                'result' => true

            ],

            [

                'email' => 'posts+AAAAAAAAAAIAAAAAAAAGQQAAAAABFSXz1eM/P/lR2bYyljM+@posts.moodle.org',

                'result' => true

            ],

            // Test addresses that should NOT pass.

            [

                'email' => 'moodle@localhost',

                'result' => false

            ],

            [

                'email' => '"attacker\\" -oQ/tmp/ -X/var/www/vhost/moodle/backdoor.php  some"@email.com',

                'result' => false

            ],

            [

                'email' => "moodle@example.com>\r\nRCPT TO:<victim@example.com",

                'result' => false

            ],

            [

                'email' => 'greater>than@example.com',

                'result' => false

            ],

            [

                'email' => 'less<than@example.com',

                'result' => false

            ],

            [

                'email' => '"this<is>validbutwerejectit"@example.com',

                'result' => false

            ],

            // Empty e-mail addresess are not valid.

            [

                'email' => '',

                'result' => false,

            ],

            [

                'email' => null,

                'result' => false,

            ],

            [

                'email' => false,

                'result' => false,

            ],

            // Extra email addresses from Wikipedia page on Email Addresses.

            // Valid.

            [

                'email' => 'simple@example.com',

                'result' => true

            ],

            [

                'email' => 'very.common@example.com',

                'result' => true

            ],

            [

                'email' => 'disposable.style.email.with+symbol@example.com',

                'result' => true

            ],

            [

                'email' => 'other.email-with-hyphen@example.com',

                'result' => true

            ],

            [

                'email' => 'fully-qualified-domain@example.com',

                'result' => true

            ],

            [

                'email' => 'user.name+tag+sorting@example.com',

                'result' => true

            ],

            // One-letter local-part.

            [

                'email' => 'x@example.com',

                'result' => true

            ],

            [

                'email' => 'example-indeed@strange-example.com',

                'result' => true

            ],

            // See the List of Internet top-level domains.

            [

                'email' => 'example@s.example',

                'result' => true

            ],

            // Quoted double dot.

            [

                'email' => '"john..doe"@example.org',

                'result' => true

            ],

            // Invalid.

            // No @ character.

            [

                'email' => 'Abc.example.com',

                'result' => false

            ],

            // Only one @ is allowed outside quotation marks.

            [

                'email' => 'A@b@c@example.com',

                'result' => false

            ],

            // None of the special characters in this local-part are allowed outside quotation marks.

            [

                'email' => 'a"b(c)d,e:f;g<h>i[j\k]l@example.com',

                'result' => false

            ],

            // Quoted strings must be dot separated or the only element making up the local-part.

            [

                'email' => 'just"not"right@example.com',

                'result' => false

            ],

            // Spaces, quotes, and backslashes may only exist when within quoted strings and preceded by a backslash.

            [

                'email' => 'this is"not\allowed@example.com',

                'result' => false

            ],

            // Even if escaped (preceded by a backslash), spaces, quotes, and backslashes must still be contained by quotes.

            [

                'email' => 'this\ still\"not\\allowed@example.com',

                'result' => false

            ],

            // Local part is longer than 64 characters.

            [

                'email' => '1234567890123456789012345678901234567890123456789012345678901234+x@example.com',

                'result' => false

            ],

        ];

    }

    /**

     * Tests valid and invalid email address using the validate_email() function.

     *

     * @param string $email the email address to test

     * @param boolean $result Expected result (true or false)

     * @dataProvider    data_validate_email

     * @covers ::validate_email

     */

    public function test_validate_email($email, $result) {

        if ($result) {

            $this->assertTrue(validate_email($email));

        } else {

            $this->assertFalse(validate_email($email));

        }

    }

    /**

     * Data provider for test_get_file_argument.

     */

    public static function provider_get_file_argument() {

        return array(

            // Serving SCORM content w/o HTTP GET params.

            array(array(

                    'SERVER_SOFTWARE' => 'Apache',

                    'SERVER_PORT' => '80',

                    'REQUEST_METHOD' => 'GET',

                    'REQUEST_URI' => '/pluginfile.php/3854/mod_scorm/content/1/swf.html',

                    'SCRIPT_NAME' => '/pluginfile.php',

                    'PATH_INFO' => '/3854/mod_scorm/content/1/swf.html',

                ), 0, '/3854/mod_scorm/content/1/swf.html'),

            array(array(

                    'SERVER_SOFTWARE' => 'Apache',

                    'SERVER_PORT' => '80',

                    'REQUEST_METHOD' => 'GET',

                    'REQUEST_URI' => '/pluginfile.php/3854/mod_scorm/content/1/swf.html',

                    'SCRIPT_NAME' => '/pluginfile.php',

                    'PATH_INFO' => '/3854/mod_scorm/content/1/swf.html',

                ), 1, '/3854/mod_scorm/content/1/swf.html'),

            // Serving SCORM content w/ HTTP GET 'file' as first param.

            array(array(

                    'SERVER_SOFTWARE' => 'Apache',

                    'SERVER_PORT' => '80',

                    'REQUEST_METHOD' => 'GET',

                    'REQUEST_URI' => '/pluginfile.php/3854/mod_scorm/content/1/swf.html?file=video_.swf',

                    'SCRIPT_NAME' => '/pluginfile.php',

                    'PATH_INFO' => '/3854/mod_scorm/content/1/swf.html',

                ), 0, '/3854/mod_scorm/content/1/swf.html'),

            array(array(

                    'SERVER_SOFTWARE' => 'Apache',

                    'SERVER_PORT' => '80',

                    'REQUEST_METHOD' => 'GET',

                    'REQUEST_URI' => '/pluginfile.php/3854/mod_scorm/content/1/swf.html?file=video_.swf',

                    'SCRIPT_NAME' => '/pluginfile.php',

                    'PATH_INFO' => '/3854/mod_scorm/content/1/swf.html',

                ), 1, '/3854/mod_scorm/content/1/swf.html'),

            // Serving SCORM content w/ HTTP GET 'file' not as first param.

            array(array(

                    'SERVER_SOFTWARE' => 'Apache',

                    'SERVER_PORT' => '80',

                    'REQUEST_METHOD' => 'GET',

                    'REQUEST_URI' => '/pluginfile.php/3854/mod_scorm/content/1/swf.html?foo=bar&file=video_.swf',

                    'SCRIPT_NAME' => '/pluginfile.php',

                    'PATH_INFO' => '/3854/mod_scorm/content/1/swf.html',

                ), 0, '/3854/mod_scorm/content/1/swf.html'),

            array(array(

                    'SERVER_SOFTWARE' => 'Apache',

                    'SERVER_PORT' => '80',

                    'REQUEST_METHOD' => 'GET',

                    'REQUEST_URI' => '/pluginfile.php/3854/mod_scorm/content/1/swf.html?foo=bar&file=video_.swf',

                    'SCRIPT_NAME' => '/pluginfile.php',

                    'PATH_INFO' => '/3854/mod_scorm/content/1/swf.html',

                ), 1, '/3854/mod_scorm/content/1/swf.html'),

            // Serving content from a generic activity w/ HTTP GET 'file', still forcing slash arguments.

            array(array(

                    'SERVER_SOFTWARE' => 'Apache',

                    'SERVER_PORT' => '80',

                    'REQUEST_METHOD' => 'GET',

                    'REQUEST_URI' => '/pluginfile.php/3854/whatever/content/1/swf.html?file=video_.swf',

                    'SCRIPT_NAME' => '/pluginfile.php',

                    'PATH_INFO' => '/3854/whatever/content/1/swf.html',

                ), 0, '/3854/whatever/content/1/swf.html'),

            array(array(

                    'SERVER_SOFTWARE' => 'Apache',

                    'SERVER_PORT' => '80',

                    'REQUEST_METHOD' => 'GET',

                    'REQUEST_URI' => '/pluginfile.php/3854/whatever/content/1/swf.html?file=video_.swf',

                    'SCRIPT_NAME' => '/pluginfile.php',

                    'PATH_INFO' => '/3854/whatever/content/1/swf.html',

                ), 1, '/3854/whatever/content/1/swf.html'),

            // Serving content from a generic activity w/ HTTP GET 'file', still forcing slash arguments (edge case).