function LanguageNegotiationContentEntityTest::testGetLangcode

@covers ::getLangcode

File

core/modules/language/tests/src/Unit/Plugin/LanguageNegotiation/LanguageNegotiationContentEntityTest.php, line 100

Class

LanguageNegotiationContentEntityTest

Tests the LanguageNegotiationContentEntity plugin class.

Namespace

Code

public function testGetLangcode() : void {
    $languageNegotiationContentEntity = $this->createLanguageNegotiationPlugin();
    // Case 1: Empty request.
    $this->assertEquals(NULL, $languageNegotiationContentEntity->getLangcode());
    // Case 2: A request is available, but the languageManager is not set and
    // the static::QUERY_PARAMETER is not provided as a named parameter.
    $request = Request::create('/de/foo', 'GET');
    $request->query = new InputBag();
    $this->assertEquals(NULL, $languageNegotiationContentEntity->getLangcode($request));
    // Case 3: A request is available, the languageManager is set, but the
    // static::QUERY_PARAMETER is not provided as a named parameter.
    $languageNegotiationContentEntity->setLanguageManager($this->languageManager);
    $this->assertEquals(NULL, $languageNegotiationContentEntity->getLangcode($request));
    // Case 4: A request is available, the languageManager is set and the
    // static::QUERY_PARAMETER is provided as a named parameter.
    $expectedLangcode = 'de';
    $request->query
        ->set(LanguageNegotiationContentEntity::QUERY_PARAMETER, $expectedLangcode);
    $this->assertEquals($expectedLangcode, $languageNegotiationContentEntity->getLangcode($request));
    // Case 5: A request is available, the languageManager is set and the
    // static::QUERY_PARAMETER is provided as a named parameter with a given
    // langcode that is not one of the system supported ones.
    $unknownLangcode = 'xx';
    $request->query
        ->set(LanguageNegotiationContentEntity::QUERY_PARAMETER, $unknownLangcode);
    $this->assertNull($languageNegotiationContentEntity->getLangcode($request));
}