Merge pull request #2 from FromDoppler/DE-135-self-hosting-integration-test

test: add an example of self-hosting integration test

Author: andresmoschini

Doppler.HelloMicroservice.Test/Doppler.HelloMicroservice.Test.csproj

@@ -8,6 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.7.1" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="5.0.5" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>

Doppler.HelloMicroservice.Test/IntegrationTest1.cs

@@ -0,0 +1,44 @@
+using System;
+using System.Net;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc.Testing;
+using Xunit;
+
+namespace Doppler.HelloMicroservice
+{
+    public class IntegrationTest1
+        : IClassFixture<WebApplicationFactory<Startup>>
+    {
+        private readonly WebApplicationFactory<Startup> _factory;
+
+        public IntegrationTest1(WebApplicationFactory<Startup> factory)
+        {
+            _factory = factory;
+        }
+
+        [Theory]
+        [InlineData("/WeatherForecast", HttpStatusCode.OK, "application/json; charset=utf-8")]
+        [InlineData("/swagger", HttpStatusCode.Moved, null)]
+        [InlineData("/swagger/index.html", HttpStatusCode.OK, "text/html; charset=utf-8")]
+        [InlineData("/robots.txt", HttpStatusCode.OK, "text/plain")]
+        [InlineData("/favicon.ico", HttpStatusCode.OK, "image/x-icon")]
+        [InlineData("/swagger/v1/swagger.json", HttpStatusCode.OK, "application/json; charset=utf-8")]
+        [InlineData("/", HttpStatusCode.NotFound, null)]
+        [InlineData("/Not/Found", HttpStatusCode.NotFound, null)]
+        public async Task GET_endpoints_return_correct_status_and_contentType(string url, HttpStatusCode expectedStatusCode, string expectedContentType)
+        {
+            // Arrange
+            var client = _factory.CreateClient(new WebApplicationFactoryClientOptions()
+            {
+                AllowAutoRedirect = false
+            });
+
+            // Act
+            var response = await client.GetAsync(url);
+
+            // Assert
+            Assert.Equal(expectedStatusCode, response.StatusCode);
+            Assert.Equal(expectedContentType, response.Content?.Headers?.ContentType?.ToString());
+        }
+    }
+}

README.md

@@ -54,4 +54,6 @@ If you prefer to run these commands without docker, you can read [Dockerfile](./
 
 - Allow overriding project settings based on our Doppler conventions.
 
-- Expose Swagger (with support for segment prefix)
+- Expose Swagger (with support for segment prefix).
+
+- Including an example of a self-hosting integration test.