Unit Testing .Net Core 8 Web API using XUnit and Moq

Hello Austin,

Please refer the below links

https://medium.com/@jaydeepvpatil225/implementation-of-unit-test-using-xunit-and-moq-in-net-core-6-web-api-539205f1d38f

https://www.hosting.work/aspnet-core-web-api-xunit-moq-unit-testing/

 

Thanks

To perform unit testing on your asynchronous Web API project using XUnit and Moq, you can follow the steps below:

1. Create a test project in your solution:

   • Right-click on the solution
   • Select "Add" -> "New Project"
   • Choose "xUnit Test Project" template
   • Name the project and click "Create"

2. Install necessary NuGet packages:

   • Install-Package Moq
   • Install-Package Microsoft.AspNetCore.Mvc.Core
   • Install-Package Microsoft.AspNetCore.Mvc.Testing

3. Write unit tests in your test project:

   public class MyServiceTests
   {
       private readonly Mock _myServiceMock = new Mock();
   
       [Fact]
       public async Task GetItems_ReturnsItems()
       {
           // Arrange
           var items = new List { new Item { Id = 1, Name = "Item 1" } };
           _myServiceMock.Setup(x => x.GetItems()).ReturnsAsync(items);
   
           var controller = new MyController(_myServiceMock.Object);
   
           // Act
           var result = await controller.GetItems();
   
           // Assert
           Assert.NotNull(result);
           Assert.Equal(items, result);
       }
   }
   

   Ensure your controller uses the interface that you are mocking in the test:

   public class MyController : ControllerBase
   {
       private readonly IMyService _myService;
   
       public MyController(IMyService myService)
       {
           _myService = myService;
       }
   
       [HttpGet]
       public async Task GetItems()
       {
           var items = await _myService.GetItems();
           return Ok(items);
       }
   }
   

    

4. Run your unit tests in Visual Studio by right-clicking on the test method and selecting "Run Test".

5. By following these steps, you should be able to write and run unit tests for your asynchronous Web API project using XUnit and Moq.