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Differences Between: [Versions 310 and 400] [Versions 39 and 400]

   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  /**
  18   * Unit test for the filter_tex
  19   *
  20   * @package    filter_tex
  21   * @copyright  2014 Damyon Wiese
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  namespace filter_tex;
  26  
  27  use filter_tex;
  28  
  29  defined('MOODLE_INTERNAL') || die();
  30  
  31  global $CFG;
  32  require_once($CFG->dirroot . '/filter/tex/filter.php');
  33  
  34  
  35  /**
  36   * Unit tests for filter_tex.
  37   *
  38   * Test the delimiter parsing used by the tex filter.
  39   *
  40   * @copyright  2014 Damyon Wiese
  41   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  42   */
  43  class filter_test extends \advanced_testcase {
  44  
  45      protected $filter;
  46  
  47      protected function setUp(): void {
  48          parent::setUp();
  49          $this->resetAfterTest(true);
  50          $this->filter = new filter_tex(\context_system::instance(), array());
  51      }
  52  
  53      function run_with_delimiters($start, $end, $filtershouldrun) {
  54          $pre = 'Some pre text';
  55          $post = 'Some post text';
  56          $equation = ' \sum{a^b} ';
  57  
  58          $before = $pre . $start . $equation . $end . $post;
  59  
  60          $after = trim($this->filter->filter($before));
  61  
  62          if ($filtershouldrun) {
  63              $this->assertNotEquals($after, $before);
  64          } else {
  65              $this->assertEquals($after, $before);
  66          }
  67      }
  68  
  69      function test_delimiters() {
  70          // First test the list of supported delimiters.
  71          $this->run_with_delimiters('$$', '$$', true);
  72          $this->run_with_delimiters('\\(', '\\)', true);
  73          $this->run_with_delimiters('\\[', '\\]', true);
  74          $this->run_with_delimiters('[tex]', '[/tex]', true);
  75          $this->run_with_delimiters('<tex>', '</tex>', true);
  76          $this->run_with_delimiters('<tex alt="nonsense">', '</tex>', true);
  77          // Now test some cases that shouldn't be executed.
  78          $this->run_with_delimiters('<textarea>', '</textarea>', false);
  79          $this->run_with_delimiters('$', '$', false);
  80          $this->run_with_delimiters('(', ')', false);
  81          $this->run_with_delimiters('[', ']', false);
  82          $this->run_with_delimiters('$$', '\\]', false);
  83      }
  84  
  85  }