- Yioop Repo - Seekquarry

<?php
/**
 * SeekQuarry/Yioop --
 * Open Source Pure PHP Search Engine, Crawler, and Indexer
 *
 * Copyright (C) 2009 - 2026  Chris Pollett chris@pollett.org
 *
 * LICENSE:
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 *
 * @author Chris Pollett chris@pollett.org
 * @license https://www.gnu.org/licenses/ GPL3
 * @link https://www.seekquarry.com/
 * @copyright 2009 - 2026
 * @filesource
 */
namespace seekquarry\yioop\tests;

use seekquarry\yioop\library\JavascriptUnitTest;

/**
 * SuggestJavascriptTest tests the spelling correction of suggest.js, which
 * offers a corrected query under the search box on a page of results.
 *
 * @author Chris Pollett
 */
class SuggestJavascriptTest extends JavascriptUnitTest
{
    /**
     * correctSpellingKeepsNumbersAndShortWordsTestCase checks
     * correctSpelling against a small dictionary holding the words p,
     * cities, legacy and pandemic. The number 6 and the two letter word
     * at must be kept as typed, though p is one edit from 6 and a is in
     * the dictionary's letters. The misspelled word pandemc must still be
     * corrected to pandemic, and a word that no candidate beats must be
     * left alone.
     *
     * @return string html and Javascript that checks the corrections in a
     *      browser or, from the command line, under node
     */
    public function correctSpellingKeepsNumbersAndShortWordsTestCase()
    {
        ob_start();
        ?>
        <div id="suggestTest">
        </div>
        <script src="../scripts/basic.js" ></script>
        <script src="../scripts/suggest.js" ></script>
        <script src="../scripts/javascript_unit_test.js" ></script>
        <script>
        END_OF_TERM_MARKER = " ";
        alpha = "abcdefghijklmnopqrstuvwxyz0123456789";
        dictionary = {};
        let frequencies = {"p": 900, "a": 900, "cities": 300,
            "legacy": 200, "pandemic": 100};
        for (let word in frequencies) {
            let node = dictionary;
            for (let i = 0; i < word.length; i++) {
                let key = encode(word.charAt(i));
                if (!node[key]) {
                    node[key] = {};
                }
                node = node[key];
            }
            node[END_OF_TERM_MARKER] = frequencies[word];
        }
        let results = [
            { name: "6 is kept", pass: correctSpelling("6") === "6" },
            { name: "a two letter word is kept",
                pass: correctSpelling("at") === "at" },
            { name: "pandemc becomes pandemic",
                pass: correctSpelling("pandemc") === "pandemic" },
            { name: "a word in the dictionary is kept",
                pass: correctSpelling("cities") === "cities" }];
        reportUnitTestResults("suggestTest",
            "correctSpellingKeepsNumbersAndShortWordsTestCase", results);
        </script>
        <?php
        $out_data = ob_get_contents();
        ob_end_clean();
        return $out_data;
    }
}