class DrupalTagsHandlingTestCase

class DrupalTagsHandlingTestCase extends DrupalUnitTestCase {
    var $validTags = array(
        'Drupal' => 'Drupal',
        'Drupal with some spaces' => 'Drupal with some spaces',
        '"Legendary Drupal mascot of doom: ""Druplicon"""' => 'Legendary Drupal mascot of doom: "Druplicon"',
        '"Drupal, although it rhymes with sloopal, is as awesome as a troopal!"' => 'Drupal, although it rhymes with sloopal, is as awesome as a troopal!',
    );
    public static function getInfo() {
        return array(
            'name' => 'Drupal tags handling',
            'description' => "Performs tests on Drupal's handling of tags, both explosion and implosion tactics used.",
            'group' => 'System',
        );
    }
    
    /**
     * Explode a series of tags.
     */
    function testDrupalExplodeTags() {
        $string = implode(', ', array_keys($this->validTags));
        $tags = drupal_explode_tags($string);
        $this->assertTags($tags);
    }
    
    /**
     * Implode a series of tags.
     */
    function testDrupalImplodeTags() {
        $tags = array_values($this->validTags);
        // Let's explode and implode to our heart's content.
        for ($i = 0; $i < 10; $i++) {
            $string = drupal_implode_tags($tags);
            $tags = drupal_explode_tags($string);
        }
        $this->assertTags($tags);
    }
    
    /**
     * Helper function: asserts that the ending array of tags is what we wanted.
     */
    function assertTags($tags) {
        $original = $this->validTags;
        foreach ($tags as $tag) {
            $key = array_search($tag, $original);
            $this->assertTrue($key, format_string('Make sure tag %tag shows up in the final tags array (originally %original)', array(
                '%tag' => $tag,
                '%original' => $key,
            )));
            unset($original[$key]);
        }
        foreach ($original as $leftover) {
            $this->fail(format_string('Leftover tag %leftover was left over.', array(
                '%leftover' => $leftover,
            )));
        }
    }

}