.
/**
* Unit test for the filter_tex
*
* @package filter_tex
* @copyright 2014 Damyon Wiese
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
global $CFG;
require_once($CFG->dirroot . '/filter/tex/filter.php');
/**
* Unit tests for filter_tex.
*
* Test the delimiter parsing used by the tex filter.
*
* @copyright 2014 Damyon Wiese
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class filter_tex_testcase extends advanced_testcase {
protected $filter;
protected function setUp() {
parent::setUp();
$this->resetAfterTest(true);
$this->filter = new filter_tex(context_system::instance(), array());
}
function run_with_delimiters($start, $end, $filtershouldrun) {
$pre = 'Some pre text';
$post = 'Some post text';
$equation = ' \sum{a^b} ';
$before = $pre . $start . $equation . $end . $post;
$after = trim($this->filter->filter($before));
if ($filtershouldrun) {
$this->assertNotEquals($after, $before);
} else {
$this->assertEquals($after, $before);
}
}
function test_delimiters() {
// First test the list of supported delimiters.
$this->run_with_delimiters('$$', '$$', true);
$this->run_with_delimiters('\\(', '\\)', true);
$this->run_with_delimiters('\\[', '\\]', true);
$this->run_with_delimiters('[tex]', '[/tex]', true);
$this->run_with_delimiters('', '', true);
$this->run_with_delimiters('', '', true);
// Now test some cases that shouldn't be executed.
$this->run_with_delimiters('', false);
$this->run_with_delimiters('$', '$', false);
$this->run_with_delimiters('(', ')', false);
$this->run_with_delimiters('[', ']', false);
$this->run_with_delimiters('$$', '\\]', false);
}
}