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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 test_css_text_has_contrast_testcase
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*/
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class img_has_alt_test extends all_checks {
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/** @var string Check type */
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public $checktype = 'img_has_alt';
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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 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<html>
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<head>
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<title>Image alt attributes need to be specified - fail</title>
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</head>
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<body>
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<img src="rex.jpg" alt="">
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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 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<html>
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<head>
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<title>Image alt attributes need to be specified - fail</title>
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</head>
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<body>
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<img src="rex.jpg">
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</body>
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</html>
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EOD;
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/** @var string Html pass */
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private $htmlpass = <<<EOD
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<html>
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<head>
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<title>Image alt attributes need to be specified - fail</title>
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</head>
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<body>
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<img src="rex.jpg" alt="this is an image of rex">
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</body>
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</html>
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EOD;
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/**
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* Test for missing image alt text.
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*/
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public function test_check_fail(): void {
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$results = $this->get_checker_results($this->htmlfail1);
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$this->assertTrue($results[0]->element->tagName == 'img');
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$results = $this->get_checker_results($this->htmlfail2);
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$this->assertTrue($results[0]->element->tagName == 'img');
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}
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/**
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* Test for present image alt text.
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*/
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public function test_check_pass(): void {
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$results = $this->get_checker_results($this->htmlpass);
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$this->assertTrue(count($results) == 0);
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}
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}
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