Наследование: implements Pyrech\ComposerChangelogs\OperationHandler\OperationHandler
 /**
  * @expectedException \LogicException
  * @expectedExceptionMessage Operation should be an instance of UninstallOperation
  */
 public function test_it_throws_exception_when_getting_output_from_non_uninstall_operation()
 {
     $this->SUT->getOutput(new FakeOperation(''));
 }