public void Post_Return500_When_CrewWithoutStewardesses()
        {
            //Arrange
            var correctItem = new CrewDTO {
                PilotId = 1
            };
            //Act
            var result = _crewController.Put(1, correctItem).Result as StatusCodeResult;

            //Assert
            Assert.AreEqual(result.StatusCode, 500);
        }