feat: add reusable fake time provider

Author: meaboutsoftware

Chapter-3-microservice-extraction/Fitnet.Common/Fitnet.Common.IntegrationTestsToolbox/GlobalUsings.cs

@@ -4,3 +4,4 @@
 global using Microsoft.AspNetCore.Mvc.Testing;
 global using Microsoft.AspNetCore.Hosting;
 global using Microsoft.Extensions.Configuration;
+global using Bogus;

Chapter-3-microservice-extraction/Fitnet.Common/Fitnet.Common.IntegrationTestsToolbox/TestEngine/Time/FakeTimeProvider.cs

@@ -0,0 +1,9 @@
+namespace EvolutionaryArchitecture.Fitnet.Common.IntegrationTestsToolbox.TestEngine.Time;
+
+[UsedImplicitly]
+public sealed class FakeTimeProvider(DateTimeOffset? now = null) : TimeProvider
+{
+    private DateTimeOffset TimeNowOffset { get; set; } = now ?? new Faker().Date.RecentOffset().UtcDateTime;
+
+    public override DateTimeOffset GetUtcNow() => TimeNowOffset;
+}

Chapter-3-microservice-extraction/Fitnet.Common/Fitnet.Common.IntegrationTestsToolbox/TestEngine/Time/TimeExtensions.cs

@@ -0,0 +1,13 @@
+namespace EvolutionaryArchitecture.Fitnet.Common.IntegrationTestsToolbox.TestEngine.Time;
+
+using Microsoft.AspNetCore.TestHost;
+using Microsoft.Extensions.DependencyInjection;
+
+public static class TimeExtensions
+{
+    public static WebApplicationFactory<T> WithTime<T>(
+        this WebApplicationFactory<T> webApplicationFactory, FakeTimeProvider fakeTimeProvider)
+        where T : class => webApplicationFactory
+        .WithWebHostBuilder(builder =>
+            builder.ConfigureTestServices(services => services.AddSingleton<TimeProvider>(fakeTimeProvider)));
+}