Ticket #6464: test_smilies.php

<?php

// test convert_smilies and related functions


/* Skip test? */
function test_smilies_skip() {
        global $wpsmiliestrans;

        return ( count($wpsmiliestrans) == 0);
}

/* Parse text for image strings.
 * 
 * Returns array of results with [0] as whole match including tag, [1] is src.
 */
function test_smilies_match_in_img($text) {
        $match = "/<img.*src=(?:'|\")(.*)(?:'|\").*>/U";
        preg_match_all($match, $text, $result, PREG_SET_ORDER);
        return $result;
}

/*
 * Create a random printable string of specified length, htmlentities-ed. More
 * "aggressive" than rand_str().
 */
function test_smilies_random_string($length) {
        $start_ascii_printable = 33;
        $end_ascii_printable = 126;

        $result = '';
        while ($length--) {
                $result .= chr(rand($start_ascii_printable, $end_ascii_printable));
        }
        return htmlentities($result);
}

/* Create a number of random words */
function test_smilies_random_words($words, $strip_smilies=true, $min_length=3, $max_length=10) {
        $result = ' ';
        while($words--) {
                $result .= test_smilies_random_string(rand($min_length, $max_length)) . ' ';
        }
        return ($strip_smilies ? test_smilies_strip_smilies($result) : $result);
}

/* Brute force strip smilies from string */
function test_smilies_strip_smilies($text) {
        global $wpsmiliestrans;
        return str_replace(array_keys($wpsmiliestrans), '', $text);
}

/* 
 * Get specified number of random smilies from $wpsmiliestrans. Returns same
 * format: <smilie> => <filename>
 */
function test_smilies_get_random_smilies($nr) {
        global $wpsmiliestrans;

        $keys = array_keys($wpsmiliestrans);
        $values = array_values($wpsmiliestrans);

        $count = count($keys);
        while ($nr--) {
                $i = rand(0, $count-1);
                $result[$keys[$i]] = $values[$i];
        }
        return $result;
}

/* Get filename for smilie (as returned from test_smilies_match_in_img() */
function test_smilies_get_filename($s) {
        if (is_array($s)) {
                $s = pathinfo($s[1]);
                return $s['basename'];
        } else {
                return $s;
        }
}

/*
 * Convert $text using convert_smilies, and check that any smilies in converted
 * text match one to one against array of smilie filenames supplied.
 */
function test_smilies_test_text($text, $smilies) {
        $smilies_arr = test_smilies_match_in_img(convert_smilies($text));

        if (count($smilies_arr) != count($smilies)) {
                return FALSE;
        }

        /* make sure the filenames match */
        $s = reset($smilies_arr);
        $sfile = reset($smilies);
        while ($s && $sfile) {
                if (strcmp(test_smilies_get_filename($s), $sfile) != 0) {
                        echo($s . ' / ' . test_smilies_get_filename($s) . '/' . $sfile);
                        return FALSE;
                }

                $s = next($smilies_arr);
                $sfile = next($smilies);
        }

        return TRUE;
}


class WPTestSmilies extends WPTestCase {
        /*
         * Test a few smilies among random text
         */
        function test_smilies_in_text() {
                if (test_smilies_skip()) {
                        $this->markTestSkipped();
                }

                $nr_of_smilies = 5;
                $smilies = test_smilies_get_random_smilies($nr_of_smilies);

                $text = '';
                for ( $v = reset($smilies), $k = key($smilies);
                          $v;
                          $v = next($smilies), $k = key($smilies)) {
                        $text .= test_smilies_random_words(rand(0, 15)) . $k . test_smilies_random_words(rand(0, 15));
                }

                $this->assertTrue(test_smilies_test_text($text, array_values($smilies)));
        }

        /*
         * Test a smilie inside html tag
         */
        function test_smilies_in_tag() {
                if (test_smilies_skip()) {
                        $this->markTestSkipped();
                }

                $nr_of_smilies = 2;
                $smilies = test_smilies_get_random_smilies($nr_of_smilies);

                $text = '';
                for ( $v = reset($smilies), $k = key($smilies);
                          $v;
                          $v = next($smilies), $k = key($smilies)) {
                        $text .= '<label name="'. $k . '">';
                }

                // check against empty array
                $this->assertTrue(test_smilies_test_text($text, array()));
        }

        /*
         * Test a few smilies among html tags
         */
        function test_smilies_among_tags() {
                if (test_smilies_skip()) {
                        $this->markTestSkipped();
                }

                $nr_of_smilies = 5;
                $smilies = test_smilies_get_random_smilies($nr_of_smilies);

                $text = '';
                for ( $v = reset($smilies), $k = key($smilies);
                          $v;
                          $v = next($smilies), $k = key($smilies)) {
                        $text .=  '<p>' . $k . '</p>';
                }

                $this->assertTrue(test_smilies_test_text($text, array_values($smilies)));
        }

        /*
         * Test one of each smilie
         */
        function test_all_smiles_and_filenames() {
                if (test_smilies_skip()) {
                        $this->markTestSkipped();
                }

                global $wpsmiliestrans;

                /* make string with one of each smiley */
                $smilies_text = '';
                foreach (array_keys($wpsmiliestrans) as $smiley) {
                        $smilies_text .= " $smiley ";
                }

                $this->assertTrue(test_smilies_test_text($smilies_text, array_values($wpsmiliestrans)));
        }

        /*
         * Test a new $wpsmiliestrans with some random smilies
         */
        function test_smilies_new_wpsmiliestrans() {
                /* This we can test even if test_smilies_skip() == true */

                global $wpsmiliestrans;
                $nr_of_smilies = 10;

                /* backup */
                $old_wpsmiliestrans = $wpsmiliestrans;
                $old_option = get_option('use_smilies');
                if (!$old_option) {
                        update_option('use_smilies', 1);
                }

                unset($wpsmiliestrans);
                while ($nr_of_smilies--) {
                        $wpsmiliestrans[test_smilies_random_string(rand(2, 5))] = test_smilies_random_string(5, 10) . '.gif';
                }

                smilies_init();

                $this->test_all_smiles_and_filenames();

                /* restore */
                $wpsmiliestrans = $old_wpsmiliestrans;
                if (!$old_option) {
                        update_option('use_smilies', $old_option);
                }
                smilies_init();
        }
}

?>