public void IsExists_ShouldReturnAircraftTypeDto_WhenAircraftTypeExists() { A.CallTo(() => _fakeUnitOfWork.Set <AircraftType>().Get(_aircraftTypeId)).Returns(new List <AircraftType> { _type1 }); var result = _aircraftTypeService.IsExist(_aircraftTypeId); Assert.AreEqual(_type1DTO, result); }