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           efrain | 
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           <?php
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           // This file is part of Moodle - http://moodle.org/
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           //
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           // Moodle is free software: you can redistribute it and/or modify
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           // it under the terms of the GNU General Public License as published by
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           // the Free Software Foundation, either version 3 of the License, or
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           // (at your option) any later version.
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           //
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           // Moodle is distributed in the hope that it will be useful,
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           // but WITHOUT ANY WARRANTY; without even the implied warranty of
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           // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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           // GNU General Public License for more details.
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           //
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           // You should have received a copy of the GNU General Public License
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           // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
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           /**
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            * tool_brickfield check test.
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            *
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            * @package    tool_brickfield
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            * @copyright  2020 onward: Brickfield Education Labs, https://www.brickfield.ie
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            * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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            */
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           namespace tool_brickfield\local\htmlchecker\common\checks;
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           defined('MOODLE_INTERNAL') || die();
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           require_once('all_checks.php');
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           /**
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            * Class header_h3_testcase
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            */
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           ariadna | 
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           final class header_h3_test extends all_checks {
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           efrain | 
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               /** @var string Check type */
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               protected $checktype = 'header_h3';
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               /** @var string Html fail 1 */
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               private $htmlfail1 = <<<EOD
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               <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN""http://www.w3.org/TR/REC-html40/loose.dtd">
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               <html lang="en">
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               <head>
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               <title>The header following an h3 must be h1, h2, h3 or h4.</title>
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               </head>
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               <body>
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               <h3>This is h3</h3>
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               <h5>This is h5</h5>
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               </body>
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               </html>
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           EOD;
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               /** @var string Html fail 2 */
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               private $htmlfail2 = <<<EOD
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               <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN""http://www.w3.org/TR/REC-html40/loose.dtd">
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               <html lang="en">
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               <head>
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               <title>The header following an h3 must be h1, h2, h3 or h4.</title>
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               </head>
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               <body>
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               <h3>This is h3</h3>
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               <h6>This is h6</h6>
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               </body>
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               </html>
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           EOD;
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               /** @var string Html pass 1 */
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               private $htmlpass1 = <<<EOD
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               <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN""http://www.w3.org/TR/REC-html40/loose.dtd">
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               <html lang="en">
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               <head>
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               <title>The header following an h3 must be h1, h2, h3 or h4.</title>
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               </head>
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               <body>
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               <h3>This is h3</h3>
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               <h1>This is h1</h1>
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               </body>
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               </html>
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           EOD;
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               /** @var string Html pass 2 */
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               private $htmlpass2 = <<<EOD
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               <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN""http://www.w3.org/TR/REC-html40/loose.dtd">
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               <html lang="en">
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               <head>
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               <title>The header following an h3 must be h1, h2, h3 or h4.</title>
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               </head>
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               <body>
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               <h3>This is h3</h3>
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               <h2>This is h2</h2>
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               </body>
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               </html>
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           EOD;
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               /** @var string Html pass 3 */
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               private $htmlpass3 = <<<EOD
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               <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN""http://www.w3.org/TR/REC-html40/loose.dtd">
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               <html lang="en">
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               <head>
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               <title>The header following an h3 must be h1, h2, h3 or h4.</title>
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               </head>
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               <body>
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               <h3>This is h3</h3>
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               <h3>This is h3</h3>
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               </body>
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               </html>
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           EOD;
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               /** @var string Html pass 4 */
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               private $htmlpass4 = <<<EOD
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               <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN""http://www.w3.org/TR/REC-html40/loose.dtd">
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               <html lang="en">
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               <head>
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               <title>The header following an h3 must be h1, h2, h3 or h4.</title>
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               </head>
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               <body>
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               <h3>This is h3</h3>
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               <h4>This is h4</h4>
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               </body>
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               </html>
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           EOD;
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               /**
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                * Test the header following an h3 must be h1, h2, h3 or h4.
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                */
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           efrain | 
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               public function test_check(): void {
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           efrain | 
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                   $results = $this->get_checker_results($this->htmlfail1);
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                   $this->assertTrue($results[0]->element->tagName == 'h5');
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                   $results = $this->get_checker_results($this->htmlfail2);
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                   $this->assertTrue($results[0]->element->tagName == 'h6');
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                   $results = $this->get_checker_results($this->htmlpass1);
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                   $this->assertEmpty($results);
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                   $results = $this->get_checker_results($this->htmlpass3);
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                   $this->assertEmpty($results);
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                   $results = $this->get_checker_results($this->htmlpass3);
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                   $this->assertEmpty($results);
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                   $results = $this->get_checker_results($this->htmlpass4);
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                   $this->assertEmpty($results);
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               }
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           }
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