public function getRegisteredStreamWrappersReturnsRegisteredStreamWrappers()
{
$mockStreamWrapper1ClassName = get_class($this->mockStreamWrapper);
$mockStreamWrapper2 = $this->createMock(StreamWrapperInterface::class);
$mockStreamWrapper2ClassName = get_class($mockStreamWrapper2);
StreamWrapperAdapter::registerStreamWrapper('mockScheme1', $mockStreamWrapper1ClassName);
StreamWrapperAdapter::registerStreamWrapper('mockScheme2', $mockStreamWrapper2ClassName);
$registeredStreamWrappers = StreamWrapperAdapter::getRegisteredStreamWrappers();
$this->assertSame($mockStreamWrapper1ClassName, $registeredStreamWrappers['mockScheme1']);
$this->assertSame($mockStreamWrapper2ClassName, $registeredStreamWrappers['mockScheme2']);
}