<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Inflector\Tests;

use PHPUnit\Framework\TestCase;
use Symfony\Component\Inflector\Inflector;

class InflectorTest extends TestCase
{
    public function singularizeProvider()
    {
        // see http://english-zone.com/spelling/plurals.html
        // see http://www.scribd.com/doc/3271143/List-of-100-Irregular-Plural-Nouns-in-English
        return [
            ['accesses', 'access'],
            ['addresses', 'address'],
            ['agendas', 'agenda'],
            ['alumnae', 'alumna'],
            ['alumni', 'alumnus'],
            ['analyses', ['analys', 'analyse', 'analysis']],
            ['antennae', 'antenna'],
            ['antennas', 'antenna'],
            ['appendices', ['appendex', 'appendix', 'appendice']],
            ['arches', ['arch', 'arche']],
            ['atlases', ['atlas', 'atlase', 'atlasis']],
            ['axes', ['ax', 'axe', 'axis']],
            ['babies', 'baby'],
            ['bacteria', ['bacterion', 'bacterium']],
            ['bases', ['bas', 'base', 'basis']],
            ['batches', ['batch', 'batche']],
            ['beaux', 'beau'],
            ['bees', ['be', 'bee']],
            ['boxes', 'box'],
            ['boys', 'boy'],
            ['bureaus', 'bureau'],
            ['bureaux', 'bureau'],
            ['buses', ['bus', 'buse', 'busis']],
            ['bushes', ['bush', 'bushe']],
            ['calves', ['calf', 'calve', 'calff']],
            ['cars', 'car'],
            ['cassettes', ['cassett', 'cassette']],
            ['caves', ['caf', 'cave', 'caff']],
            ['chateaux', 'chateau'],
            ['cheeses', ['chees', 'cheese', 'cheesis']],
            ['children', 'child'],
            ['circuses', ['circus', 'circuse', 'circusis']],
            ['cliffs', 'cliff'],
            ['committee', 'committee'],
            ['crises', ['cris', 'crise', 'crisis']],
            ['criteria', ['criterion', 'criterium']],
            ['cups', 'cup'],
            ['data', ['daton', 'datum']],
            ['days', 'day'],
            ['discos', 'disco'],
            ['devices', ['devex', 'devix', 'device']],
            ['drives', 'drive'],
            ['drivers', 'driver'],
            ['dwarves', ['dwarf', 'dwarve', 'dwarff']],
            ['echoes', ['echo', 'echoe']],
            ['elves', ['elf', 'elve', 'elff']],
            ['emphases', ['emphas', 'emphase', 'emphasis']],
            ['faxes', 'fax'],
            ['feet', 'foot'],
            ['feedback', 'feedback'],
            ['foci', 'focus'],
            ['focuses', ['focus', 'focuse', 'focusis']],
            ['formulae', 'formula'],
            ['formulas', 'formula'],
            ['fungi', 'fungus'],
            ['funguses', ['fungus', 'funguse', 'fungusis']],
            ['garages', ['garag', 'garage']],
            ['geese', 'goose'],
            ['halves', ['half', 'halve', 'halff']],
            ['hats', 'hat'],
            ['heroes', ['hero', 'heroe']],
            ['hippopotamuses', ['hippopotamus', 'hippopotamuse', 'hippopotamusis']], //hippopotami
            ['hoaxes', 'hoax'],
            ['hooves', ['hoof', 'hoove', 'hooff']],
            ['houses', ['hous', 'house', 'housis']],
            ['indexes', 'index'],
            ['indices', ['index', 'indix', 'indice']],
            ['ions', 'ion'],
            ['irises', ['iris', 'irise', 'irisis']],
            ['kisses', 'kiss'],
            ['knives', 'knife'],
            ['lamps', 'lamp'],
            ['leaves', ['leaf', 'leave', 'leaff']],
            ['lice', 'louse'],
            ['lives', 'life'],
            ['matrices', ['matrex', 'matrix', 'matrice']],
            ['matrixes', 'matrix'],
            ['men', 'man'],
            ['mice', 'mouse'],
            ['moves', 'move'],
            ['movies', 'movie'],
            ['nebulae', 'nebula'],
            ['neuroses', ['neuros', 'neurose', 'neurosis']],
            ['news', 'news'],
            ['oases', ['oas', 'oase', 'oasis']],
            ['objectives', 'objective'],
            ['oxen', 'ox'],
            ['parties', 'party'],
            ['people', 'person'],
            ['persons', 'person'],
            ['phenomena', ['phenomenon', 'phenomenum']],
            ['photos', 'photo'],
            ['pianos', 'piano'],
            ['plateaux', 'plateau'],
            ['poppies', 'poppy'],
            ['prices', ['prex', 'prix', 'price']],
            ['quizzes', 'quiz'],
            ['radii', 'radius'],
            ['roofs', 'roof'],
            ['roses', ['ros', 'rose', 'rosis']],
            ['sandwiches', ['sandwich', 'sandwiche']],
            ['scarves', ['scarf', 'scarve', 'scarff']],
            ['schemas', 'schema'], //schemata
            ['selfies', 'selfie'],
            ['series', 'series'],
            ['services', 'service'],
            ['sheriffs', 'sheriff'],
            ['shoes', ['sho', 'shoe']],
            ['spies', 'spy'],
            ['staves', ['staf', 'stave', 'staff']],
            ['stories', 'story'],
            ['strata', ['straton', 'stratum']],
            ['suitcases', ['suitcas', 'suitcase', 'suitcasis']],
            ['syllabi', 'syllabus'],
            ['tags', 'tag'],
            ['teeth', 'tooth'],
            ['theses', ['thes', 'these', 'thesis']],
            ['thieves', ['thief', 'thieve', 'thieff']],
            ['trees', ['tre', 'tree']],
            ['waltzes', ['waltz', 'waltze']],
            ['wives', 'wife'],

            // test casing: if the first letter was uppercase, it should remain so
            ['Men', 'Man'],
            ['GrandChildren', 'GrandChild'],
            ['SubTrees', ['SubTre', 'SubTree']],

            // Known issues
            //['insignia', 'insigne'],
            //['insignias', 'insigne'],
            //['rattles', 'rattle'],
        ];
    }

    /**
     * @dataProvider singularizeProvider
     */
    public function testSingularize($plural, $singular)
    {
        $single = Inflector::singularize($plural);
        if (\is_string($singular) && \is_array($single)) {
            $this->fail("--- Expected\n`string`: ".$singular."\n+++ Actual\n`array`: ".implode(', ', $single));
        } elseif (\is_array($singular) && \is_string($single)) {
            $this->fail("--- Expected\n`array`: ".implode(', ', $singular)."\n+++ Actual\n`string`: ".$single);
        }

        $this->assertEquals($singular, $single);
    }
}
