Automatic testing of ApiController

Question

I have an ApiController and would like to test it with unit tests including the routing.

An example:

[RoutePrefix(\"prefix\")]
public class          


        

Answer 1

1. Create an OWIN StartUp class using Microsoft ASP.NET Web API 2.2 OWIN package:

   public class Startup
   { 
       public void Configuration(IAppBuilder builder)
       {
           var config = new HttpConfiguration();
   
           builder.UseWebApi(config);
   
           config.MapHttpAttributeRoutes();
           config.EnsureInitialized();
       }
   }
   

2. Use Microsoft ASP.NET Web API 2.2 Self Host package in your tests (used NUnit for example):

   [Test]
   [TestCase(10, 5, 15)]
   [TestCase(1, 2, 3)]
   // add your test cases
   public async Task AdditionTests(int a, int b, int result) 
   {
       // Arrange
       var address = "http://localhost:5050";
   
       using (WebApp.Start(address))
       {
           var client = new HttpClient();
   
           var requestUri = $"{address}/prefix/{a}?id2={b}";
   
           // Act
           var response = await client.GetAsync(requestUri);
   
           // Assert
           Assert.IsTrue(await response.Content.ReadAsAsync() == result);
       }
   }