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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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* Class test_css_text_has_contrast 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_test
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*/
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class css_text_has_contrast_test extends all_checks {
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/** @var string The check type. */
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protected $checktype = 'css_text_has_contrast';
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/** @var string HTML that should get flagged. */
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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>OAC Testfile - Check #6 - Positive</title>
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</head>
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<body>
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<p style="color:#333333; background-color:#000000; font-weight: bold;">This is not contrasty enough.</p>
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</body>
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</html>
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EOD;
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/** @var string HTML that should get flagged. */
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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>OAC Testfile - Check #6 - Positive</title>
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</head>
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<body>
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<p style="color:#333333; background-color:#000000; font-size: 18px;">This is not contrasty enough.</p>
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</body>
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</html>
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EOD;
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/** @var string HTML that should get flagged. */
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private $htmlfail3 = <<<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>OAC Testfile - Check #6 - Positive</title>
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</head>
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<body>
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<p style="color:#333333; background-color:#000000; font-size: 18%;">This is not contrasty enough.</p>
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</body>
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</html>
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EOD;
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/** @var string HTML that should get flagged. */
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private $htmlfail4 = <<<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>OAC Testfile - Check #6 - Positive</title>
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</head>
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<body>
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<p style="color:#333333; background-color:#000000; font-size: 18em;">This is not contrasty enough.</p>
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</body>
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</html>
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EOD;
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/** @var string HTML that should get flagged. */
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private $htmlfail5 = <<<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>OAC Testfile - Check #6 - Positive</title>
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</head>
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<body>
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<p style="color:#333333; background-color:#000000; font-size: 18ex;">This is not contrasty enough.</p>
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</body>
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</html>
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EOD;
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/** @var string HTML that should get flagged. */
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private $htmlfail6 = <<<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>OAC Testfile - Check #6 - Positive</title>
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</head>
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<body>
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<p style="color:#333333; background-color:#000000;">This is not contrasty enough.</p>
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</body>
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</html>
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EOD;
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/** @var string HTML that should not get flagged. */
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private $htmlpass = <<<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>OAC Testfile - Check #6 - Positive</title>
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</head>
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<body>
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<p style="color:#333333; background-color:#ffffff;">This is contrasty enough.</p>
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</body>
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</html>
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EOD;
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/** @var string HTML that should get flagged. */
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private $namecolours = <<<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>OAC Testfile - Check #6 - Positive</title>
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</head>
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<body>
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<p style="color: red; background-color: blue;">This is not contrasty enough.</p>
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</body>
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</html>
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EOD;
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/** @var string HTML with invalid colour names. */
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private $invalidcolours = <<<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>OAC Testfile - Check #6 - Positive</title>
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</head>
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<body>
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<p style="color: grog; background-color: numpi;">This is not contrasty enough.</p>
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</body>
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</html>
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EOD;
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/** @var string HTML with invalid colour numeric values. */
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private $invalidvalue = <<<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>OAC Testfile - Check #6 - Positive</title>
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</head>
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<body>
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<p style="color: 10000500; background-color: -10234;">This is not contrasty enough.</p>
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</body>
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</html>
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EOD;
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/** @var string HTML with empty colour values. */
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private $emptyvalue = <<<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>OAC Testfile - Check #6 - Positive</title>
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</head>
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<body>
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<p style="color:; background-color:;">This is not contrasty enough.</p>
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</body>
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</html>
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EOD;
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/** @var string HTML with px18 fail colour values. */
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private $px18 = <<<EOD
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<body><p style="color:#EF0000; background-color:white; font-size: 18px">
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This is not contrasty enough.</p></body>
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EOD;
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/** @var string HTML with px19bold pass colour values. */
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private $px19bold = <<<EOD
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<body><p style="color:#EF0000; background-color:white; font-size: 19px; font-weight: bold;">
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This is contrasty enough.</p></body>
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EOD;
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/** @var string HTML with px18 pass colour values. */
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private $px18pass = <<<EOD
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<body><p style="color:#E60000; background-color:white; font-size: 18px">
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This is contrasty enough.</p></body>
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EOD;
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/** @var string HTML with medium size colour values. */
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private $mediumfail = <<<EOD
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<body><p style="color:#EF0000; background-color:white; font-size: medium">
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This is not contrasty enough.</p></body>
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EOD;
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/** @var string HTML with px18 colour values. */
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private $mediumpass = <<<EOD
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<body><p style="color:#E60000; background-color:white; font-size: medium">
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This is contrasty enough.</p></body>
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EOD;
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/** @var string HTML with larger fail colour values. */
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private $largerfail = <<<EOD
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<body><p style="color:#FF6161; background-color:white; font-size: larger">
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This is not contrasty enough.</p></body>
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EOD;
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/** @var string HTML with px18 colour values. */
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private $largerpass = <<<EOD
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<body><p style="color:#FF5C5C; background-color:white; font-size: larger;">
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This is contrasty enough.</p></body>
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EOD;
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/** @var string HTML with px18 colour values. */
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private $largerboldpass = <<<EOD
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<body><p style="color:#FF5C5C; background-color:white; font-size: larger; font-weight: bold;">
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This is contrasty enough.</p></body>
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EOD;
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/**
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* Test for the area assign intro
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*/
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public function test_check(): void {
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$results = $this->get_checker_results($this->htmlfail1);
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$this->assertTrue($results[0]->element->tagName == 'p');
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$results = $this->get_checker_results($this->htmlfail2);
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$this->assertTrue($results[0]->element->tagName == 'p');
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$results = $this->get_checker_results($this->htmlfail3);
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$this->assertTrue($results[0]->element->tagName == 'p');
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$results = $this->get_checker_results($this->htmlfail4);
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$this->assertTrue($results[0]->element->tagName == 'p');
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$results = $this->get_checker_results($this->htmlfail5);
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$this->assertTrue($results[0]->element->tagName == 'p');
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$results = $this->get_checker_results($this->htmlfail6);
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$this->assertTrue($results[0]->element->tagName == 'p');
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$results = $this->get_checker_results($this->htmlpass);
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$this->assertEmpty($results);
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}
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/**
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* Test with valid colour names.
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*/
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public function test_check_for_namedcolours(): void {
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$results = $this->get_checker_results($this->namecolours);
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$this->assertTrue($results[0]->element->tagName == 'p');
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}
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/**
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* Test with invalid colour names.
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*/
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public function test_check_for_invalidcolours(): void {
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$results = $this->get_checker_results($this->invalidcolours);
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$this->assertTrue($results[0]->element->tagName == 'p');
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}
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/**
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* Test with invalid colour numeric values.
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*/
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public function test_check_for_invalidvalues(): void {
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$results = $this->get_checker_results($this->invalidvalue);
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$this->assertTrue($results[0]->element->tagName == 'p');
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}
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/**
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* Test with empty colour values.
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*/
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public function test_check_for_emptyvalues(): void {
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$results = $this->get_checker_results($this->emptyvalue);
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$this->assertEmpty($results);
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}
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/**
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* Test for text px18 with insufficient contrast of 4.49.
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*/
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public function test_check_for_px18_fail(): void {
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$results = $this->get_checker_results($this->px18);
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$this->assertTrue($results[0]->element->tagName == 'p');
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}
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/**
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* Test for text px19 bold with sufficient contrast of 4.49.
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*/
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public function test_check_for_px19bold_pass(): void {
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$results = $this->get_checker_results($this->px19bold);
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$this->assertEmpty($results);
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}
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/**
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* Test for text px18 with sufficient contrast of 4.81.
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*/
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public function test_check_for_px18_pass(): void {
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$results = $this->get_checker_results($this->px18pass);
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$this->assertEmpty($results);
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}
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/**
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* Test for medium (12pt) text with insufficient contrast of 4.49.
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*/
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public function test_check_for_medium_fail(): void {
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$results = $this->get_checker_results($this->mediumfail);
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$this->assertTrue($results[0]->element->tagName == 'p');
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}
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/**
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* Test for medium (12pt) text with sufficient contrast of 4.81.
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*/
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public function test_check_for_medium_pass(): void {
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$results = $this->get_checker_results($this->mediumpass);
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$this->assertEmpty($results);
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}
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/**
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* Test for larger (14pt) text with insufficient contrast of 2.94.
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*/
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public function test_check_for_larger_fail(): void {
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$results = $this->get_checker_results($this->largerfail);
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$this->assertTrue($results[0]->element->tagName == 'p');
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}
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/**
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336 |
* Test for larger (14pt) text with insufficient contrast of 3.02.
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|
|
337 |
*/
|
| 11 |
efrain |
338 |
public function test_check_for_larger_pass(): void {
|
| 1 |
efrain |
339 |
$results = $this->get_checker_results($this->largerpass);
|
|
|
340 |
$this->assertTrue($results[0]->element->tagName == 'p');
|
|
|
341 |
}
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|
|
342 |
|
|
|
343 |
/**
|
|
|
344 |
* Test for larger (14pt) bold text with sufficient contrast of 3.02.
|
|
|
345 |
*/
|
| 11 |
efrain |
346 |
public function test_check_for_largerbold_pass(): void {
|
| 1 |
efrain |
347 |
$results = $this->get_checker_results($this->largerboldpass);
|
|
|
348 |
$this->assertEmpty($results);
|
|
|
349 |
}
|
|
|
350 |
}
|