public async Task PutAsync_ServiceExists_ReturnsNoContent() { // Arrange _service.Setup(s => s.UpdateAsync(It.IsAny <int>(), It.IsAny <Service>())).ReturnsAsync(true); // Act var result = await _controller.PutAsync(It.IsAny <int>(), It.IsAny <ServiceUpdateDto>()); // Assert Assert.IsType <NoContentResult>(result); }