public async Task Put_ReturnsBadRequest_GivenNull()
        {
            // Arrange
            var mockRepo  = new Mock <IService <Code> >();
            var returning = "invalid";
            var dbMock    = GetCode(returning);

            mockRepo.Setup(x => x.Put(It.IsAny <int>(), It.IsAny <Code>()))
            .Returns(dbMock);

            var controller = new CodesController(mockRepo.Object);

            // Act
            var result = await controller.Put(1, new CodeDTO(1, "Test One"));

            // Assert
            Assert.IsType <BadRequestResult>(result);
        }
        public async Task Put_ReturnsCodeDTO_GivenCodeDTO()
        {
            // Arrange
            var mockRepo = new Mock <IService <Code> >();
            var dbMock   = GetCode();

            mockRepo.Setup(x => x.Put(It.IsAny <int>(), It.IsAny <Code>()))
            .Returns(dbMock).Verifiable();

            var controller = new CodesController(mockRepo.Object);

            // Act
            var result = await controller.Put(1, new CodeDTO(1, "Test One"));

            // Assert
            mockRepo.VerifyAll();
            var okResult   = Assert.IsType <OkObjectResult>(result);
            var returnCode = Assert.IsType <CodeDTO>(okResult.Value);

            Assert.Equal("Test One", returnCode.Name);
        }