public async Task PostAsync_ValidObjectPassed_ReturnsCreatedResponse(
            [Frozen] Service testService)
        {
            // Arrange
            _service.Setup(s => s.AddAsync(It.IsAny <Service>())).ReturnsAsync(testService);

            // Act
            var createdResponse = await _controller.PostAsync(It.IsAny <ServiceCreateDto>());

            // Assert
            Assert.IsType <CreatedAtActionResult>(createdResponse.Result);
        }