public void GetAllFuelTypesReturnsOkAndListOfAllFueltypesWhenEverythingIsCorrect()
        {
            var fuelTypes = new List <FuelType>();

            _fuelTypeRepositoryMock.Setup(m => m.GetAll())
            .Returns(fuelTypes);

            var result = _sut.GetAllEntities() as OkObjectResult;

            Assert.That(result, Is.Not.Null);

            var value = result.Value as List <FuelTypeReturnModel>;

            Assert.That(value, Is.Not.Null);
            _fuelTypeRepositoryMock.Verify(m => m.GetAll(), Times.Once);
        }