<?php
/**
 * Unit tests.
 *
 * @file
 * @author Niklas Laxström
 * @copyright Copyright © 2012-2013, Niklas Laxström
 * @license GPL-2.0+
 */

/**
 * Unit tests for MediaWikiMessageCheckerTest class.
 */
class MediaWikiMessageCheckerTest extends MediaWikiTestCase {

	/**
	 * @dataProvider getPluralFormCountProvider
	 */
	public function testGetPluralFormCount( $expected, $code, $comment ) {
		$provided = MediaWikiMessageChecker::GetPluralFormCount( $code );
		$this->assertEquals( $expected, $provided, $comment );
	}

	public function getPluralFormCountProvider() {
		return array(
			array( 2, 'en', 'English has two plural forms' ),
			array( 3, 'ro', 'Romanian has three plural forms' ),
			array( 5, 'br', 'Breton has five plural forms' ),
		);
	}

	/**
	 * @dataProvider getPluralFormsProvider
	 */
	public function testGetPluralForms( $expected, $string, $comment ) {
		$provided = MediaWikiMessageChecker::getPluralForms( $string );
		$this->assertSame( $expected, $provided, $comment );
	}

	public function getPluralFormsProvider() {
		return array(
			array(
				array( array( '1', '2' ) ),
				'a{{PLURAL:#|1|2}}b',
				'one plural magic word is parsed correctly'
			),

			array(
				array( array( '1', '2' ), array( '3', '4' ) ),
				'{{PLURAL:#|1|2}}{{PLURAL:#|3|4}}',
				'two plural magic words are parsed correctly'
			),

			array(
				array( array( '1', '2{{}}3' ) ),
				'a{{PLURAL:#|1|2{{}}3}}',
				'one plural magic word with curlies inside is parsed correctly'
			),

			array(
				array( array( '0=0', '1=one', '1', '2' ) ),
				'a{{PLURAL:#|0=0|1=one|1|2}}',
				'one plural magic word with explicit forms is parsed correctly'
			),
			array(
				array(),
				'a{{PLURAL:#|0=0|1=one|1|2}',
				'unclosed plural tag is ignored'
			),
			array(
				array( array( '1=foo', '{{GENDER:#|he}}' ) ),
				'a{{PLURAL:#|1=foo|{{GENDER:#|he}}}}',
				'pipes in subtemplates are ignored'
			),
			array(
				array( array( '[[Special:A|письмо]]', '[[Special:A|писем]]', '[[Special:A|письма]]' ) ),
				'{{PLURAL:#|[[Special:A|письмо]]|[[Special:A|писем]]|[[Special:A|письма]]}}',
				'pipes in links are ignored'
			),
			array(
				array(
					array( 'a', 'b' ),
					array( 'c', 'd' ),
					array( '{{PLURAL:#|a|b}}', '{{PLURAL:#|c|d}}' ),
					),
				'{{PLURAL:#|{{PLURAL:#|a|b}}|{{PLURAL:#|c|d}}}}',
				'nested plurals are handled correctly'
			)
		);
	}

	/**
	 * @dataProvider removeExplicitPluralFormsProvider
	 */
	public function testRemoveExplicitPluralForms( $expected, $forms, $comment ) {
		$provided = MediaWikiMessageChecker::removeExplicitPluralForms( $forms );
		$this->assertEquals( $expected, $provided, $comment );
	}

	public function removeExplicitPluralFormsProvider() {
		return array(
			array(
				array( '1', '2' ),
				array( '1', '2' ),
				'default forms are not removed',
			),

			array(
				array( '1', '2' ),
				array( '0=0', '1', '0=0', '2', '1=one' ),
				'explicit forms are removed regardless of position',
			),

			array(
				array( '1', '2' ),
				array( '1', '2', '500=lots' ),
				'works for any number',
			),
		);
	}
}
