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

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

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//

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

// GNU General Public License for more details.

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

namespace filter_mathjaxloader;

use core\context\system as context_system;

/**

 * Unit tests for the MathJax loader filter.

 *

 * @package   filter_mathjaxloader

 * @category  test

 * @copyright 2018 Markku Riekkinen

 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 * @covers \filter_mathjaxloader\text_filter

 */

final class filtermath_test extends \advanced_testcase {

    /**

     * Test the functionality of {@see text_filter::filter()}.

     *

     * @param string $inputtext The text given by the user.

     * @param string $expected The expected output after filtering.

     * @dataProvider math_filtering_inputs

     */

    public function test_math_filtering($inputtext, $expected): void {

        $filter = new text_filter(context_system::instance(), []);

        $this->assertEquals($expected, $filter->filter($inputtext));

    }

    /**

     * Data provider for {@link self::test_math_filtering()}.

     *

     * @return array of [inputtext, expectedoutput] tuples.

     */

    public static function math_filtering_inputs(): array {

        // phpcs:disable moodle.Files.LineLength.TooLong

        return [

            // One inline formula.

            [

                'Some inline math \\( y = x^2 \\).',

                '<span class="filter_mathjaxloader_equation">Some inline math <span class="nolink">\\( y = x^2 \\)</span>.</span>',

            ],

            // One inline and one display.

            [

                'Some inline math \\( y = x^2 \\) and display formula \\[ S = \\sum_{n=1}^{\\infty} 2^n \\]',

                '<span class="filter_mathjaxloader_equation">Some inline math <span class="nolink">\\( y = x^2 \\)</span> and '

                    . 'display formula <span class="nolink">\\[ S = \\sum_{n=1}^{\\infty} 2^n \\]</span></span>',

            ],

            // One display and one inline.

            [

                'Display formula \\[ S = \\sum_{n=1}^{\\infty} 2^n \\] and some inline math \\( y = x^2 \\).',

                '<span class="filter_mathjaxloader_equation">Display formula <span class="nolink">\\[ S = \\sum_{n=1}^{\\infty} 2^n \\]</span> and '

                    . 'some inline math <span class="nolink">\\( y = x^2 \\)</span>.</span>',

            ],

            // One inline and one display (with dollars).

            [

                'Some inline math \\( y = x^2 \\) and display formula $$ S = \\sum_{n=1}^{\\infty} 2^n $$',

                '<span class="filter_mathjaxloader_equation">Some inline math <span class="nolink">\\( y = x^2 \\)</span> and '

                    . 'display formula <span class="nolink">$$ S = \\sum_{n=1}^{\\infty} 2^n $$</span></span>',

            ],

            // One display (with dollars) and one inline.

            [

                'Display formula $$ S = \\sum_{n=1}^{\\infty} 2^n $$ and some inline math \\( y = x^2 \\).',

                '<span class="filter_mathjaxloader_equation">Display formula <span class="nolink">$$ S = \\sum_{n=1}^{\\infty} 2^n $$</span> and '

                    . 'some inline math <span class="nolink">\\( y = x^2 \\)</span>.</span>',

            ],

            // Inline math environment nested inside display environment (using a custom LaTex macro).

            [

                '\\[ \\newcommand{\\False}{\\mathsf{F}} \\newcommand{\\NullF}{\\fbox{\\(\\False\\)}} \\] '

                    . 'Text with inline formula using the custom LaTex macro \\( a = \\NullF \\).',

                '<span class="filter_mathjaxloader_equation"><span class="nolink">'

                    . '\\[ \\newcommand{\\False}{\\mathsf{F}} \\newcommand{\\NullF}{\\fbox{\\(\\False\\)}} \\]</span> '

                    . 'Text with inline formula using the custom LaTex macro <span class="nolink">\\( a = \\NullF \\)</span>.</span>',

            ],

            // Nested environments and some more content.

            [

                '\\[ \\newcommand{\\False}{\\mathsf{F}} \\newcommand{\\NullF}{\\fbox{\\(\\False\\)}} \\] '

                    . 'Text with inline formula using the custom LaTex macro \\( a = \\NullF \\). Finally, a display formula '

                    . '$$ b = \\NullF $$',

                '<span class="filter_mathjaxloader_equation"><span class="nolink">'

                    . '\\[ \\newcommand{\\False}{\\mathsf{F}} \\newcommand{\\NullF}{\\fbox{\\(\\False\\)}} \\]</span> '

                    . 'Text with inline formula using the custom LaTex macro <span class="nolink">\\( a = \\NullF \\)</span>. '

                    . 'Finally, a display formula <span class="nolink">$$ b = \\NullF $$</span></span>',

            ],

            // Broken math: the delimiters ($$) are not closed.

            [

                'Writing text and starting display math. $$ k = i^3 \\newcommand{\\False}{\\mathsf{F}} \\newcommand{\\NullF}{\\fbox{\\(\\False\\)}} '

                    . 'More text and inline math \\( x = \\NullF \\).',

                'Writing text and starting display math. $$ k = i^3 \\newcommand{\\False}{\\mathsf{F}} \\newcommand{\\NullF}{\\fbox{\\(\\False\\)}} '

                    . 'More text and inline math \\( x = \\NullF \\).',

            ],

        ];

    }

}