test: mock WebApplicationFactory

Author: csvitor-dev

src/BackEnd/RecipesApp.API/appsettings.Testing.json

@@ -0,0 +1,12 @@
+{
+  "EnvironmentTesting": true,
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "Settings": {
+    "key": "dot"
+  }
+}

test/API.Test/User/Register/RegisterUserEndpoint.cs

@@ -2,12 +2,12 @@
 using System.Net.Http.Json;
 using System.Text.Json;
 using CommonTestUtilities.Requests;
-using Microsoft.AspNetCore.Mvc.Testing;
+using CommonTestUtilities.Services;
 
 namespace API.Test.User.Register;
 
-public class RegisterUserEndpoint(WebApplicationFactory<Program> factory)
-    : IClassFixture<WebApplicationFactory<Program>>
+public class RegisterUserEndpoint(WebApplicationMockFactory factory)
+    : IClassFixture<WebApplicationMockFactory>
 {
     private readonly HttpClient _client = factory.CreateClient();
 

test/CommonTestUtilities/Services/EncryptMockFactory.cs

@@ -2,8 +2,7 @@
 
 namespace CommonTestUtilities.Services;
 
-public class EncryptMockFactory
+public static class EncryptMockFactory
 {
-    public static PasswordEncryptionService CreateMock()
-        => new PasswordEncryptionService("dot");
+    public static PasswordEncryptionService CreateMock() => new("dot");
 }

test/CommonTestUtilities/Services/MapperMockFactory.cs

@@ -3,7 +3,7 @@
 
 namespace CommonTestUtilities.Services;
 
-public class MapperMockFactory
+public static class MapperMockFactory
 {
     public static IMapper CreateMock()
     {

test/CommonTestUtilities/Services/WebApplicationMockFactory.cs

@@ -0,0 +1,30 @@
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.Mvc.Testing;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+using RecipesApp.Infra.Data;
+
+namespace CommonTestUtilities.Services;
+
+public class WebApplicationMockFactory : WebApplicationFactory<Program>
+{
+    protected override void ConfigureWebHost(IWebHostBuilder builder)
+    {
+        builder.UseEnvironment("Testing")
+            .ConfigureServices(services =>
+            {
+                var descriptor = services.SingleOrDefault(d => d.ServiceType == typeof(DbContextOptions<RecipesAppContext>));
+                
+                if (descriptor is not null)
+                    services.Remove(descriptor);
+                var provider = services.AddEntityFrameworkInMemoryDatabase()
+                    .BuildServiceProvider();
+
+                services.AddDbContext<RecipesAppContext>(options =>
+                {
+                    options.UseInMemoryDatabase("InMemoryDatabaseForTesting");
+                    options.UseInternalServiceProvider(provider);
+                });
+            });
+    }
+}