class TranslationManagerTest

class TranslationManagerTest extends UnitTestCase {
    
    /**
     * The tested translation manager.
     *
     * @var \Drupal\Core\StringTranslation\TranslationManager
     */
    protected $translationManager;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() {
        $this->translationManager = new TestTranslationManager();
    }
    
    /**
     * Provides some test data for formatPlural()
     * @return array
     */
    public function providerTestFormatPlural() {
        return [
            [
                1,
                'Singular',
                '@count plural',
                [],
                [],
                'Singular',
            ],
            [
                2,
                'Singular',
                '@count plural',
                [],
                [],
                '2 plural',
            ],
            // @todo support locale_get_plural
[
                2,
                'Singular',
                '@count @arg',
                [
                    '@arg' => '<script>',
                ],
                [],
                '2 &lt;script&gt;',
            ],
            [
                2,
                'Singular',
                '@count %arg',
                [
                    '%arg' => '<script>',
                ],
                [],
                '2 <em class="placeholder">&lt;script&gt;</em>',
            ],
            [
                1,
                'Singular',
                '@count plural',
                [],
                [
                    'langcode' => NULL,
                ],
                'Singular',
            ],
            [
                1,
                'Singular',
                '@count plural',
                [],
                [
                    'langcode' => 'es',
                ],
                'Singular',
            ],
        ];
    }
    
    /**
     * @dataProvider providerTestFormatPlural
     */
    public function testFormatPlural($count, $singular, $plural, array $args, array $options, $expected) {
        $langcode = empty($options['langcode']) ? 'fr' : $options['langcode'];
        $translator = $this->createMock('\\Drupal\\Core\\StringTranslation\\Translator\\TranslatorInterface');
        $translator->expects($this->once())
            ->method('getStringTranslation')
            ->with($langcode, $this->anything(), $this->anything())
            ->will($this->returnCallback(function ($langcode, $string, $context) {
            return $string;
        }));
        $this->translationManager
            ->setDefaultLangcode('fr');
        $this->translationManager
            ->addTranslator($translator);
        $result = $this->translationManager
            ->formatPlural($count, $singular, $plural, $args, $options);
        $this->assertEquals($expected, $result);
        $this->assertInstanceOf(MarkupInterface::class, $result);
    }
    
    /**
     * Tests translation using placeholders.
     *
     * @param string $string
     *   A string containing the English text to translate.
     * @param array $args
     *   An associative array of replacements to make after translation.
     * @param string $expected_string
     *   The expected translated string value.
     *
     * @dataProvider providerTestTranslatePlaceholder
     */
    public function testTranslatePlaceholder($string, array $args, $expected_string) {
        $actual = $this->translationManager
            ->translate($string, $args);
        $this->assertInstanceOf(MarkupInterface::class, $actual);
        $this->assertEquals($expected_string, (string) $actual);
    }
    
    /**
     * Provides test data for translate().
     *
     * @return array
     */
    public function providerTestTranslatePlaceholder() {
        return [
            [
                'foo @bar',
                [
                    '@bar' => 'bar',
                ],
                'foo bar',
            ],
            [
                'bar %baz',
                [
                    '%baz' => 'baz',
                ],
                'bar <em class="placeholder">baz</em>',
            ],
            [
                'bar @bar %baz',
                [
                    '@bar' => 'bar',
                    '%baz' => 'baz',
                ],
                'bar bar <em class="placeholder">baz</em>',
            ],
            [
                'bar %baz @bar',
                [
                    '%baz' => 'baz',
                    '@bar' => 'bar',
                ],
                'bar <em class="placeholder">baz</em> bar',
            ],
        ];
    }

}