<?php
/**
 * InflectorTest
 *
 * InflectorTest is used to test cases on the Inflector class
 *
 * CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
 * Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
 *
 * Licensed under The MIT License
 * For full copyright and license information, please see the LICENSE.txt
 * Redistributions of files must retain the above copyright notice.
 *
 * @copyright     Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
 * @link          https://book.cakephp.org/2.0/en/development/testing.html
 * @package       Cake.Test.Case.Utility
 * @since         CakePHP(tm) v 1.2.0.4206
 * @license       https://opensource.org/licenses/mit-license.php MIT License
 */

/**
 * Included libraries.
 */
App::uses('Inflector', 'Utility');

/**
 * Short description for class.
 *
 * @package       Cake.Test.Case.Utility
 */
class InflectorTest extends CakeTestCase {

/**
 * A list of chars to test transliteration.
 *
 * @var array
 */
	public static $maps = array (
		'de' => array ( /* German */
			'Ä' => 'Ae', 'Ö' => 'Oe', 'Ü' => 'Ue', 'ä' => 'ae', 'ö' => 'oe', 'ü' => 'ue', 'ß' => 'ss',
			'ẞ' => 'SS'
		),
		'latin' => array (
			'À' => 'A', 'Á' => 'A', 'Â' => 'A', 'Ã' => 'A', 'Å' => 'A', 'Ă' => 'A', 'Æ' => 'AE', 'Ç' =>
			'C', 'È' => 'E', 'É' => 'E', 'Ê' => 'E', 'Ë' => 'E', 'Ì' => 'I', 'Í' => 'I', 'Î' => 'I',
			'Ï' => 'I', 'Ð' => 'D', 'Ñ' => 'N', 'Ò' => 'O', 'Ó' => 'O', 'Ô' => 'O', 'Õ' => 'O', 'Ő' => 'O', 'Ø' => 'O',
			'Ș' => 'S', 'Ț' => 'T', 'Ù' => 'U', 'Ú' => 'U', 'Û' => 'U', 'Ű' => 'U',
			'Ý' => 'Y', 'Þ' => 'TH', 'à' => 'a', 'á' => 'a', 'â' => 'a', 'ã' => 'a',
			'å' => 'a', 'ă' => 'a', 'æ' => 'ae', 'ç' => 'c', 'è' => 'e', 'é' => 'e', 'ê' => 'e', 'ë' => 'e',
			'ì' => 'i', 'í' => 'i', 'î' => 'i', 'ï' => 'i', 'ð' => 'd', 'ñ' => 'n', 'ò' => 'o', 'ó' =>
			'o', 'ô' => 'o', 'õ' => 'o', 'ő' => 'o', 'ø' => 'o', 'ș' => 's', 'ț' => 't', 'ù' => 'u', 'ú' => 'u',
			'û' => 'u', 'ű' => 'u', 'ý' => 'y', 'þ' => 'th', 'ÿ' => 'y'
		),
		'tr' => array ( /* Turkish */
			'ş' => 's', 'Ş' => 'S', 'ı' => 'i', 'İ' => 'I', 'ç' => 'c', 'Ç' => 'C', 'ğ' => 'g', 'Ğ' => 'G'
		),
		'uk' => array ( /* Ukrainian */
			'Є' => 'Ye', 'І' => 'I', 'Ї' => 'Yi', 'Ґ' => 'G', 'є' => 'ye', 'і' => 'i', 'ї' => 'yi', 'ґ' => 'g'
		),
		'cs' => array ( /* Czech */
			'č' => 'c', 'ď' => 'd', 'ě' => 'e', 'ň' => 'n', 'ř' => 'r', 'š' => 's', 'ť' => 't', 'ů' => 'u',
			'ž' => 'z', 'Č' => 'C', 'Ď' => 'D', 'Ě' => 'E', 'Ň' => 'N', 'Ř' => 'R', 'Š' => 'S', 'Ť' => 'T',
			'Ů' => 'U', 'Ž' => 'Z'
		),
		'pl' => array ( /* Polish */
			'ą' => 'a', 'ć' => 'c', 'ę' => 'e', 'ł' => 'l', 'ń' => 'n', 'ó' => 'o', 'ś' => 's', 'ź' => 'z',
			'ż' => 'z', 'Ą' => 'A', 'Ć' => 'C', 'Ł' => 'L', 'Ń' => 'N', 'Ó' => 'O', 'Ś' => 'S',
			'Ź' => 'Z', 'Ż' => 'Z'
		),
		'ro' => array ( /* Romanian */
			'ă' => 'a', 'â' => 'a', 'î' => 'i', 'ș' => 's', 'ț' => 't', 'Ţ' => 'T', 'ţ' => 't'
		),
		'lv' => array ( /* Latvian */
			'ā' => 'a', 'č' => 'c', 'ē' => 'e', 'ģ' => 'g', 'ī' => 'i', 'ķ' => 'k', 'ļ' => 'l', 'ņ' => 'n',
			'š' => 's', 'ū' => 'u', 'ž' => 'z', 'Ā' => 'A', 'Č' => 'C', 'Ē' => 'E', 'Ģ' => 'G', 'Ī' => 'I',
			'Ķ' => 'K', 'Ļ' => 'L', 'Ņ' => 'N', 'Š' => 'S', 'Ū' => 'U', 'Ž' => 'Z'
		),
		'lt' => array ( /* Lithuanian */
			'ą' => 'a', 'č' => 'c', 'ę' => 'e', 'ė' => 'e', 'į' => 'i', 'š' => 's', 'ų' => 'u', 'ū' => 'u', 'ž' => 'z',
			'Ą' => 'A', 'Č' => 'C', 'Ę' => 'E', 'Ė' => 'E', 'Į' => 'I', 'Š' => 'S', 'Ų' => 'U', 'Ū' => 'U', 'Ž' => 'Z'
		)
	);

/**
 * tearDown
 *
 * @return void
 */
	public function tearDown() {
		parent::tearDown();
		Inflector::reset();
	}

/**
 * testInflectingSingulars method
 *
 * @return void
 */
	public function testInflectingSingulars() {
		$this->assertEquals(Inflector::singularize('categorias'), 'categoria');
		$this->assertEquals(Inflector::singularize('menus'), 'menu');
		$this->assertEquals(Inflector::singularize('news'), 'news');
		$this->assertEquals(Inflector::singularize('food_menus'), 'food_menu');
		$this->assertEquals(Inflector::singularize('Menus'), 'Menu');
		$this->assertEquals(Inflector::singularize('FoodMenus'), 'FoodMenu');
		$this->assertEquals(Inflector::singularize('houses'), 'house');
		$this->assertEquals(Inflector::singularize('powerhouses'), 'powerhouse');
		$this->assertEquals(Inflector::singularize('quizzes'), 'quiz');
		$this->assertEquals(Inflector::singularize('Buses'), 'Bus');
		$this->assertEquals(Inflector::singularize('buses'), 'bus');
		$this->assertEquals(Inflector::singularize('matrix_rows'), 'matrix_row');
		$this->assertEquals(Inflector::singularize('matrices'), 'matrix');
		$this->assertEquals(Inflector::singularize('vertices'), 'vertex');
		$this->assertEquals(Inflector::singularize('indices'), 'index');
		$this->assertEquals(Inflector::singularize('Aliases'), 'Alias');
		$this->assertEquals(Inflector::singularize('Alias'), 'Alias');
		$this->assertEquals(Inflector::singularize('Media'), 'Media');
		$this->assertEquals(Inflector::singularize('NodeMedia'), 'NodeMedia');
		$this->assertEquals(Inflector::singularize('alumni'), 'alumnus');
		$this->assertEquals(Inflector::singularize('bacilli'), 'bacillus');
		$this->assertEquals(Inflector::singularize('cacti'), 'cactus');
		$this->assertEquals(Inflector::singularize('foci'), 'focus');
		$this->assertEquals(Inflector::singularize('fungi'), 'fungus');
		$this->assertEquals(Inflector::singularize('nuclei'), 'nucleus');
		$this->assertEquals(Inflector::singularize('octopuses'), 'octopus');
		$this->assertEquals(Inflector::singularize('octopuses'), 'octopus');
		$this->assertEquals(Inflector::singularize('radii'), 'radius');
		$this->assertEquals(Inflector::singularize('stimuli'), 'stimulus');
		$this->assertEquals(Inflector::singularize('syllabi'), 'syllabus');
		$this->assertEquals(Inflector::singularize('termini'), 'terminus');
		$this->assertEquals(Inflector::singularize('viruses'), 'virus');
		$this->assertEquals(Inflector::singularize('people'), 'person');
		$this->assertEquals(Inflector::singularize('gloves'), 'glove');
		$this->assertEquals(Inflector::singularize('doves'), 'dove');
		$this->assertEquals(Inflector::singularize('lives'), 'life');
		$this->assertEquals(Inflector::singularize('knives'), 'knife');
		$this->assertEquals(Inflector::singularize('wolves'), 'wolf');
		$this->assertEquals(Inflector::singularize('slaves'), 'slave');
		$this->assertEquals(Inflector::singularize('shelves'), 'shelf');
		$this->assertEquals(Inflector::singularize('taxis'), 'taxi');
		$this->assertEquals(Inflector::singularize('taxes'), 'tax');
		$this->assertEquals(Inflector::singularize('Taxes'), 'Tax');
		$this->assertEquals(Inflector::singularize('AwesomeTaxes'), 'AwesomeTax');
		$this->assertEquals(Inflector::singularize('faxes'), 'fax');
		$this->assertEquals(Inflector::singularize('waxes'), 'wax');
		$this->assertEquals(Inflector::singularize('niches'), 'niche');
		$this->assertEquals(Inflector::singularize('caves'), 'cave');
		$this->assertEquals(Inflector::singularize('graves'), 'grave');
		$this->assertEquals(Inflector::singularize('waves'), 'wave');
		$this->assertEquals(Inflector::singularize('bureaus'), 'bureau');
		$this->assertEquals(Inflector::singularize('genetic_analyses'), 'genetic_analysis');
		$this->assertEquals(Inflector::singularize('doctor_diagnoses'), 'doctor_diagnosis');
		$this->assertEquals(Inflector::singularize('parantheses'), 'paranthesis');
		$this->assertEquals(Inflector::singularize('Causes'), 'Cause');
		$this->assertEquals(Inflector::singularize('colossuses'), 'colossus');
		$this->assertEquals(Inflector::singularize('diagnoses'), 'diagnosis');
		$this->assertEquals(Inflector::singularize('bases'), 'basis');
		$this->assertEquals(Inflector::singularize('analyses'), 'analysis');
		$this->assertEquals(Inflector::singularize('curves'), 'curve');
		$this->assertEquals(Inflector::singularize('cafes'), 'cafe');
		$this->assertEquals(Inflector::singularize('roofs'), 'roof');
		$this->assertEquals(Inflector::singularize('foes'), 'foe');
		$this->assertEquals(Inflector::singularize('databases'), 'database');
		$this->assertEquals(Inflector::singularize('cookies'), 'cookie');
		$this->assertEquals(Inflector::singularize('thieves'), 'thief');
		$this->assertEquals(Inflector::singularize('potatoes'), 'potato');
		$this->assertEquals(Inflector::singularize('heroes'), 'hero');
		$this->assertEquals(Inflector::singularize('buffalos'), 'buffalo');
		$this->assertEquals(Inflector::singularize('babies'), 'baby');
		$this->assertEquals(Inflector::singularize('teeth'), 'tooth');
		$this->assertEquals(Inflector::singularize('geese'), 'goose');
		$this->assertEquals(Inflector::singularize('feet'), 'foot');
		$this->assertEquals(Inflector::singularize('objectives'), 'objective');
		$this->assertEquals(Inflector::singularize('archives'), 'archive');
		$this->assertEquals(Inflector::singularize('briefs'), 'brief');
		$this->assertEquals(Inflector::singularize('quotas'), 'quota');
		$this->assertEquals(Inflector::singularize('curves'), 'curve');
		$this->assertEquals(Inflector::singularize('body_curves'), 'body_curve');
		$this->assertEquals(Inflector::singularize('metadata'), 'metadata');
		$this->assertEquals(Inflector::singularize('files_metadata'), 'files_metadata');
		$this->assertEquals(Inflector::singularize('sieves'), 'sieve');
		$this->assertEquals(Inflector::singularize('blue_octopuses'), 'blue_octopus');
		$this->assertEquals(Inflector::singularize(''), '');
	}

/**
 * Test that overlapping irregulars don't collide.
 *
 * @return void
 */
	public function testSingularizeMultiWordIrregular() {
		Inflector::rules('singular', array(
			'irregular' => array(
				'preguntas_frecuentes' => 'pregunta_frecuente',
				'categorias_preguntas_frecuentes' => 'categoria_pregunta_frecuente',
			)
		));
		$this->assertEquals('pregunta_frecuente', Inflector::singularize('preguntas_frecuentes'));
		$this->assertEquals(
			'categoria_pregunta_frecuente',
			Inflector::singularize('categorias_preguntas_frecuentes')
		);
		$this->assertEquals(
			'faq_categoria_pregunta_frecuente',
			Inflector::singularize('faq_categorias_preguntas_frecuentes')
		);
	}

/**
 * testInflectingPlurals method
 *
 * @return void
 */
	public function testInflectingPlurals() {
		$this->assertEquals(Inflector::pluralize('axman'), 'axmen');
		$this->assertEquals(Inflector::pluralize('man'), 'men');
		$this->assertEquals(Inflector::pluralize('woman'), 'women');
		$this->assertEquals(Inflector::pluralize('human'), 'humans');
		$this->assertEquals(Inflector::pluralize('categoria'), 'categorias');
		$this->assertEquals(Inflector::pluralize('house'), 'houses');
		$this->assertEquals(Inflector::pluralize('powerhouse'), 'powerhouses');
		$this->assertEquals(Inflector::pluralize('Bus'), 'Buses');
		$this->assertEquals(Inflector::pluralize('bus'), 'buses');
		$this->assertEquals(Inflector::pluralize('menu'), 'menus');
		$this->assertEquals(Inflector::pluralize('news'), 'news');
		$this->assertEquals(Inflector::pluralize('food_menu'), 'food_menus');
		$this->assertEquals(Inflector::pluralize('Menu'), 'Menus');
		$this->assertEquals(Inflector::pluralize('FoodMenu'), 'FoodMenus');
		$this->assertEquals(Inflector::pluralize('quiz'), 'quizzes');
		$this->assertEquals(Inflector::pluralize('matrix_row'), 'matrix_rows');
		$this->assertEquals(Inflector::pluralize('matrix'), 'matrices');
		$this->assertEquals(Inflector::pluralize('vertex'), 'vertices');
		$this->assertEquals(Inflector::pluralize('index'), 'indices');
		$this->assertEquals(Inflector::pluralize('Alias'), 'Aliases');
		$this->assertEquals(Inflector::pluralize('Aliases'), 'Aliases');
		$this->assertEquals(Inflector::pluralize('Media'), 'Media');
		$this->assertEquals(Inflector::pluralize('NodeMedia'), 'NodeMedia');
		$this->assertEquals(Inflector::pluralize('alumnus'), 'alumni');
		$this->assertEquals(Inflector::pluralize('bacillus'), 'bacilli');
		$this->assertEquals(Inflector::pluralize('cactus'), 'cacti');
		$this->assertEquals(Inflector::pluralize('focus'), 'foci');
		$this->assertEquals(Inflector::pluralize('fungus'), 'fungi');
		$this->assertEquals(Inflector::pluralize('nucleus'), 'nuclei');
		$this->assertEquals(Inflector::pluralize('octopus'), 'octopuses');
		$this->assertEquals(Inflector::pluralize('radius'), 'radii');
		$this->assertEquals(Inflector::pluralize('stimulus'), 'stimuli');
		$this->assertEquals(Inflector::pluralize('syllabus'), 'syllabi');
		$this->assertEquals(Inflector::pluralize('terminus'), 'termini');
		$this->assertEquals(Inflector::pluralize('virus'), 'viruses');
		$this->assertEquals(Inflector::pluralize('person'), 'people');
		$this->assertEquals(Inflector::pluralize('people'), 'people');
		$this->assertEquals(Inflector::pluralize('glove'), 'gloves');
		$this->assertEquals(Inflector::pluralize('crisis'), 'crises');
		$this->assertEquals(Inflector::pluralize('tax'), 'taxes');
		$this->assertEquals(Inflector::pluralize('wave'), 'waves');
		$this->assertEquals(Inflector::pluralize('bureau'), 'bureaus');
		$this->assertEquals(Inflector::pluralize('cafe'), 'cafes');
		$this->assertEquals(Inflector::pluralize('roof'), 'roofs');
		$this->assertEquals(Inflector::pluralize('foe'), 'foes');
		$this->assertEquals(Inflector::pluralize('cookie'), 'cookies');
		$this->assertEquals(Inflector::pluralize('wolf'), 'wolves');
		$this->assertEquals(Inflector::pluralize('thief'), 'thieves');
		$this->assertEquals(Inflector::pluralize('potato'), 'potatoes');
		$this->assertEquals(Inflector::pluralize('hero'), 'heroes');
		$this->assertEquals(Inflector::pluralize('buffalo'), 'buffalo');
		$this->assertEquals(Inflector::pluralize('tooth'), 'teeth');
		$this->assertEquals(Inflector::pluralize('goose'), 'geese');
		$this->assertEquals(Inflector::pluralize('foot'), 'feet');
		$this->assertEquals(Inflector::pluralize('objective'), 'objectives');
		$this->assertEquals(Inflector::pluralize('brief'), 'briefs');
		$this->assertEquals(Inflector::pluralize('quota'), 'quotas');
		$this->assertEquals(Inflector::pluralize('curve'), 'curves');
		$this->assertEquals(Inflector::pluralize('body_curve'), 'body_curves');
		$this->assertEquals(Inflector::pluralize('metadata'), 'metadata');
		$this->assertEquals(Inflector::pluralize('files_metadata'), 'files_metadata');
		$this->assertEquals(Inflector::pluralize('stadia'), 'stadia');
		$this->assertEquals(Inflector::pluralize('sieve'), 'sieves');
		$this->assertEquals(Inflector::pluralize('blue_octopus'), 'blue_octopuses');
		$this->assertEquals(Inflector::pluralize(''), '');
	}

/**
 * Test that overlapping irregulars don't collide.
 *
 * @return void
 */
	public function testPluralizeMultiWordIrregular() {
		Inflector::rules('plural', array(
			'irregular' => array(
				'mytable1' => 'mytables1',
				'mytable2' => 'mytables2',
				'mytable1_mytable2' => 'mytables1_mytables2',
				'pregunta_frecuente' => 'preguntas_frecuentes',
				'categoria_pregunta_frecuente' => 'categorias_preguntas_frecuentes',
			)
		));
		$this->assertEquals('preguntas_frecuentes', Inflector::pluralize('pregunta_frecuente'));
		$this->assertEquals(
			'categorias_preguntas_frecuentes',
			Inflector::pluralize('categoria_pregunta_frecuente')
		);
		$this->assertEquals(
			'faq_categorias_preguntas_frecuentes',
			Inflector::pluralize('faq_categoria_pregunta_frecuente')
		);
		$this->assertEquals('mytables1', Inflector::pluralize('mytable1'));
		$this->assertEquals('mytables2', Inflector::pluralize('mytable2'));
		$this->assertEquals('mytables1_mytables2', Inflector::pluralize('mytable1_mytable2'));
		$this->assertEquals('mytables1_mytables2', Inflector::tableize('Mytable1Mytable2'));
	}

/**
 * testInflectingMultiWordIrregulars
 *
 * @return void
 */
	public function testInflectingMultiWordIrregulars() {
		// unset the default rules in order to avoid them possibly matching
		// the words in case the irregular regex won't match, the tests
		// should fail in that case
		Inflector::rules('plural', array(
			'rules' => array(),
		));
		Inflector::rules('singular', array(
			'rules' => array(),
		));

		$this->assertEquals(Inflector::singularize('wisdom teeth'), 'wisdom tooth');
		$this->assertEquals(Inflector::singularize('wisdom-teeth'), 'wisdom-tooth');
		$this->assertEquals(Inflector::singularize('wisdom_teeth'), 'wisdom_tooth');

		$this->assertEquals(Inflector::pluralize('sweet potato'), 'sweet potatoes');
		$this->assertEquals(Inflector::pluralize('sweet-potato'), 'sweet-potatoes');
		$this->assertEquals(Inflector::pluralize('sweet_potato'), 'sweet_potatoes');
	}

/**
 * testInflectorSlug method
 *
 * @return void
 */
	public function testInflectorSlug() {
		$result = Inflector::slug('Foo Bar: Not just for breakfast any-more');
		$expected = 'Foo_Bar_Not_just_for_breakfast_any_more';
		$this->assertEquals($expected, $result);

		$result = Inflector::slug('this/is/a/path');
		$expected = 'this_is_a_path';
		$this->assertEquals($expected, $result);

		$result = Inflector::slug('Foo Bar: Not just for breakfast any-more', "-");
		$expected = 'Foo-Bar-Not-just-for-breakfast-any-more';
		$this->assertEquals($expected, $result);

		$result = Inflector::slug('Foo Bar: Not just for breakfast any-more', "+");
		$expected = 'Foo+Bar+Not+just+for+breakfast+any+more';
		$this->assertEquals($expected, $result);

		$result = Inflector::slug('Äpfel Über Öl grün ärgert groß öko', '-');
		$expected = 'Aepfel-Ueber-Oel-gruen-aergert-gross-oeko';
		$this->assertEquals($expected, $result);

		$result = Inflector::slug('The truth - and- more- news', '-');
		$expected = 'The-truth-and-more-news';
		$this->assertEquals($expected, $result);

		$result = Inflector::slug('The truth: and more news', '-');
		$expected = 'The-truth-and-more-news';
		$this->assertEquals($expected, $result);

		$result = Inflector::slug('La langue française est un attribut de souveraineté en France', '-');
		$expected = 'La-langue-francaise-est-un-attribut-de-souverainete-en-France';
		$this->assertEquals($expected, $result);

		$result = Inflector::slug('!@$#exciting stuff! - what !@-# was that?', '-');
		$expected = 'exciting-stuff-what-was-that';
		$this->assertEquals($expected, $result);

		$result = Inflector::slug('20% of profits went to me!', '-');
		$expected = '20-of-profits-went-to-me';
		$this->assertEquals($expected, $result);

		$result = Inflector::slug('#this melts your face1#2#3', '-');
		$expected = 'this-melts-your-face1-2-3';
		$this->assertEquals($expected, $result);

		$result = Inflector::slug('controller/action/りんご/1');
		$expected = 'controller_action_りんご_1';
		$this->assertEquals($expected, $result);

		$result = Inflector::slug('の話が出たので大丈夫かなあと');
		$expected = 'の話が出たので大丈夫かなあと';
		$this->assertEquals($expected, $result);

		$result = Inflector::slug('posts/view/한국어/page:1/sort:asc');
		$expected = 'posts_view_한국어_page_1_sort_asc';
		$this->assertEquals($expected, $result);

		$result = Inflector::slug("non\xc2\xa0breaking\xc2\xa0space");
		$this->assertEquals('non_breaking_space', $result);
	}

/**
 * Test slug() with a complete list of special chars.
 *
 * @return void
 */
	public function testInflectorSlugCharList() {
		foreach (static::$maps as $language => $list) {
			foreach ($list as $from => $to) {
				$result = Inflector::slug($from);
				$this->assertEquals($to, $result, $from . ' (' . $language . ') should be ' . $to . ' - but is ' . $result);
			}
		}
	}

/**
 * testInflectorSlugWithMap method
 *
 * @return void
 */
	public function testInflectorSlugWithMap() {
		Inflector::rules('transliteration', array('/r/' => '1'));
		$result = Inflector::slug('replace every r');
		$expected = '1eplace_eve1y_1';
		$this->assertEquals($expected, $result);

		$result = Inflector::slug('replace every r', '_');
		$expected = '1eplace_eve1y_1';
		$this->assertEquals($expected, $result);
	}

/**
 * testInflectorSlugWithMapOverridingDefault method
 *
 * @return void
 */
	public function testInflectorSlugWithMapOverridingDefault() {
		Inflector::rules('transliteration', array('/å/' => 'aa', '/ø/' => 'oe'));
		$result = Inflector::slug('Testing æ ø å', '-');
		$expected = 'Testing-ae-oe-aa';
		$this->assertEquals($expected, $result);
	}

/**
 * testInflectorUnderscore method
 *
 * @return void
 */
	public function testInflectorUnderscore() {
		$this->assertSame(Inflector::underscore('TestThing'), 'test_thing');
		$this->assertSame(Inflector::underscore('testThing'), 'test_thing');
		$this->assertSame(Inflector::underscore('TestThingExtra'), 'test_thing_extra');
		$this->assertSame(Inflector::underscore('testThingExtra'), 'test_thing_extra');
		$this->assertSame(Inflector::underscore('testThingExtrå'), 'test_thing_extrå');

		// Identical checks test the cache code path.
		$this->assertSame(Inflector::underscore('TestThing'), 'test_thing');
		$this->assertSame(Inflector::underscore('testThing'), 'test_thing');
		$this->assertSame(Inflector::underscore('TestThingExtra'), 'test_thing_extra');
		$this->assertSame(Inflector::underscore('testThingExtra'), 'test_thing_extra');
		$this->assertSame(Inflector::underscore('testThingExtrå'), 'test_thing_extrå');

		// Test stupid values
		$this->assertSame(Inflector::underscore(''), '');
		$this->assertSame(Inflector::underscore(0), '0');
		$this->assertSame(Inflector::underscore(false), '');
	}

/**
 * Test camelize()
 *
 * @return void
 */
	public function testCamelize() {
		$this->assertSame('BlogArticles', Inflector::camelize('blog_articles'));
		$this->assertSame('BlogArticles', Inflector::camelize('blog articles'));
		$this->assertSame('MyPlugin.MyClass', Inflector::camelize('MyPlugin.MyClass'));
		$this->assertSame('MyPlugin.MyClass', Inflector::camelize('my_plugin.MyClass'));
		$this->assertSame('MyPlugin.myClass', Inflector::camelize('MyPlugin.my_class'));
	}

/**
 * testVariableNaming method
 *
 * @return void
 */
	public function testVariableNaming() {
		$this->assertEquals(Inflector::variable('test_field'), 'testField');
		$this->assertEquals(Inflector::variable('test_fieLd'), 'testFieLd');
		$this->assertEquals(Inflector::variable('test field'), 'testField');
		$this->assertEquals(Inflector::variable('Test_field'), 'testField');
	}

/**
 * testClassNaming method
 *
 * @return void
 */
	public function testClassNaming() {
		$this->assertEquals(Inflector::classify('artists_genres'), 'ArtistsGenre');
		$this->assertEquals(Inflector::classify('file_systems'), 'FileSystem');
		$this->assertEquals(Inflector::classify('news'), 'News');
		$this->assertEquals(Inflector::classify('bureaus'), 'Bureau');
	}

/**
 * testTableNaming method
 *
 * @return void
 */
	public function testTableNaming() {
		$this->assertEquals('artists_genres', Inflector::tableize('ArtistsGenre'));
		$this->assertEquals('file_systems', Inflector::tableize('FileSystem'));
		$this->assertEquals('news', Inflector::tableize('News'));
		$this->assertEquals('bureaus', Inflector::tableize('Bureau'));
	}

/**
 * testHumanization method
 *
 * @return void
 */
	public function testHumanization() {
		$this->assertEquals('Posts', Inflector::humanize('posts'));
		$this->assertEquals('Posts Tags', Inflector::humanize('posts_tags'));
		$this->assertEquals('File Systems', Inflector::humanize('file_systems'));
		$this->assertEquals('FiLe SysTems', Inflector::humanize('FiLe_SysTems'));
		$this->assertEquals('Hello Wörld', Inflector::humanize('hello_wörld'));
		$this->assertEquals('福岡 City', Inflector::humanize('福岡_city'));
	}

/**
 * testCustomPluralRule method
 *
 * @return void
 */
	public function testCustomPluralRule() {
		Inflector::rules('plural', array('/^(custom)$/i' => '\1izables'));
		$this->assertEquals(Inflector::pluralize('custom'), 'customizables');

		Inflector::rules('plural', array('uninflected' => array('uninflectable')));
		$this->assertEquals(Inflector::pluralize('uninflectable'), 'uninflectable');

		Inflector::rules('plural', array(
			'rules' => array('/^(alert)$/i' => '\1ables'),
			'uninflected' => array('noflect', 'abtuse'),
			'irregular' => array('amaze' => 'amazable', 'phone' => 'phonezes')
		));
		$this->assertEquals(Inflector::pluralize('noflect'), 'noflect');
		$this->assertEquals(Inflector::pluralize('abtuse'), 'abtuse');
		$this->assertEquals(Inflector::pluralize('alert'), 'alertables');
		$this->assertEquals(Inflector::pluralize('amaze'), 'amazable');
		$this->assertEquals(Inflector::pluralize('phone'), 'phonezes');
	}

/**
 * testCustomSingularRule method
 *
 * @return void
 */
	public function testCustomSingularRule() {
		Inflector::rules('singular', array('/(eple)r$/i' => '\1', '/(jente)r$/i' => '\1'));

		$this->assertEquals(Inflector::singularize('epler'), 'eple');
		$this->assertEquals(Inflector::singularize('jenter'), 'jente');

		Inflector::rules('singular', array(
			'rules' => array('/^(bil)er$/i' => '\1', '/^(inflec|contribu)tors$/i' => '\1ta'),
			'uninflected' => array('singulars'),
			'irregular' => array('spins' => 'spinor')
		));

		$this->assertEquals(Inflector::singularize('inflectors'), 'inflecta');
		$this->assertEquals(Inflector::singularize('contributors'), 'contributa');
		$this->assertEquals(Inflector::singularize('spins'), 'spinor');
		$this->assertEquals(Inflector::singularize('singulars'), 'singulars');
	}

/**
 * testCustomTransliterationRule method
 *
 * @return void
 */
	public function testCustomTransliterationRule() {
		$this->assertEquals(Inflector::slug('Testing æ ø å'), 'Testing_ae_o_a');

		Inflector::rules('transliteration', array('/å/' => 'aa', '/ø/' => 'oe'));
		$this->assertEquals(Inflector::slug('Testing æ ø å'), 'Testing_ae_oe_aa');

		Inflector::rules('transliteration', array('/ä|æ/' => 'ae', '/å/' => 'aa'), true);
		$this->assertEquals(Inflector::slug('Testing æ ø å'), 'Testing_ae_ø_aa');
	}

/**
 * test that setting new rules clears the inflector caches.
 *
 * @return void
 */
	public function testRulesClearsCaches() {
		$this->assertEquals(Inflector::singularize('Bananas'), 'Banana');
		$this->assertEquals(Inflector::tableize('Banana'), 'bananas');
		$this->assertEquals(Inflector::pluralize('Banana'), 'Bananas');

		Inflector::rules('singular', array(
			'rules' => array('/(.*)nas$/i' => '\1zzz')
		));
		$this->assertEquals('Banazzz', Inflector::singularize('Bananas'), 'Was inflected with old rules.');

		Inflector::rules('plural', array(
			'rules' => array('/(.*)na$/i' => '\1zzz'),
			'irregular' => array('corpus' => 'corpora')
		));
		$this->assertEquals(Inflector::pluralize('Banana'), 'Banazzz', 'Was inflected with old rules.');
		$this->assertEquals(Inflector::pluralize('corpus'), 'corpora', 'Was inflected with old irregular form.');
	}

/**
 * Test resetting inflection rules.
 *
 * @return void
 */
	public function testCustomRuleWithReset() {
		$uninflected = array('atlas', 'lapis', 'onibus', 'pires', 'virus', '.*x');
		$pluralIrregular = array('as' => 'ases');

		Inflector::rules('singular', array(
			'rules' => array('/^(.*)(a|e|o|u)is$/i' => '\1\2l'),
			'uninflected' => $uninflected,
		), true);

		Inflector::rules('plural', array(
			'rules' => array(
				'/^(.*)(a|e|o|u)l$/i' => '\1\2is',
			),
			'uninflected' => $uninflected,
			'irregular' => $pluralIrregular
		), true);

		$this->assertEquals(Inflector::pluralize('Alcool'), 'Alcoois');
		$this->assertEquals(Inflector::pluralize('Atlas'), 'Atlas');
		$this->assertEquals(Inflector::singularize('Alcoois'), 'Alcool');
		$this->assertEquals(Inflector::singularize('Atlas'), 'Atlas');
	}

}
