/**
* Tests ConfigNamesMapper::populateFromRequest().
*/
public function testPopulateFromRequest()
{
// Make sure the language code is not set initially.
$this->assertSame(NULL, $this->configNamesMapper->getInternalLangcode());
// Test that an empty request does not set the language code.
$request = Request::create('');
$this->configNamesMapper->populateFromRequest($request);
$this->assertSame(NULL, $this->configNamesMapper->getInternalLangcode());
// Test that a request with a 'langcode' attribute sets the language code.
$request->attributes->set('langcode', 'xx');
$this->configNamesMapper->populateFromRequest($request);
$this->assertSame('xx', $this->configNamesMapper->getInternalLangcode());
// Test that the language code gets unset with the wrong request.
$request->attributes->remove('langcode');
$this->configNamesMapper->populateFromRequest($request);
$this->assertSame(NULL, $this->configNamesMapper->getInternalLangcode());
}
