public async Task AddCategoryToShopTestAsync() { // Arrange Mock <ShopCategory> mockShopCategory = new Mock <ShopCategory>(); Mock <AddCategoryToShopDto> mockAddCategoryToShopDto = new Mock <AddCategoryToShopDto>(); ShopController controller = new ShopController(mockShopService.Object); // Act var result = await controller.AddCategoryToShop(mockAddCategoryToShopDto.Object); var okResult = Assert.IsType <OkObjectResult>(result); // Assert Assert.IsType <OkObjectResult>(result); mockShopService.Verify( mock => mock.AddCategoryToShop(mockShopCategory.Object), Times.Never()); }