class StreamWrapperManagerTest

class StreamWrapperManagerTest extends KernelTestBase {
    
    /**
     * The stream wrapper manager.
     *
     * @var \Drupal\Core\StreamWrapper\StreamWrapperManagerInterface
     */
    protected $streamWrapperManager;
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'system',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->streamWrapperManager = \Drupal::service('stream_wrapper_manager');
    }
    
    /**
     * @covers ::getScheme
     *
     * @dataProvider providerTestUriScheme
     */
    public function testUriScheme($uri, $expected) {
        $this->assertSame($expected, StreamWrapperManager::getScheme($uri));
    }
    
    /**
     * Data provider.
     */
    public function providerTestUriScheme() {
        $data = [];
        $data[] = [
            'public://filename',
            'public',
        ];
        $data[] = [
            'public://extra://',
            'public',
        ];
        $data[] = [
            'invalid',
            FALSE,
        ];
        return $data;
    }

}