aspnetcore/test/Microsoft.AspNetCore.Diagno.../TestFixture.cs

74 lines
3.2 KiB
C#

// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using System;
using System.IO;
using System.Net.Http;
using System.Reflection;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc.Infrastructure;
using Microsoft.AspNetCore.TestHost;
using Microsoft.AspNetCore.Testing;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.PlatformAbstractions;
namespace Microsoft.AspNetCore.Diagnostics.FunctionalTests
{
public class TestFixture<TStartup> : IDisposable
{
private readonly TestServer _server;
public TestFixture()
{
// RequestLocalizationOptions saves the current culture when constructed, potentially changing response
// localization i.e. RequestLocalizationMiddleware behavior. Ensure the saved culture
// (DefaultRequestCulture) is consistent regardless of system configuration or personal preferences.
using (new CultureReplacer())
{
var builder = new WebHostBuilder()
.ConfigureServices(InitializeServices)
.UseStartup(typeof(TStartup));
_server = new TestServer(builder);
}
Client = _server.CreateClient();
Client.BaseAddress = new Uri("http://localhost");
}
public HttpClient Client { get; }
public void Dispose()
{
Client.Dispose();
_server.Dispose();
}
protected virtual void InitializeServices(IServiceCollection services)
{
var libraryManager = DnxPlatformServices.Default.LibraryManager;
// When an application executes in a regular context, the application base path points to the root
// directory where the application is located, for example .../samples/MvcSample.Web. However, when
// executing an application as part of a test, the ApplicationBasePath of the IApplicationEnvironment
// points to the root folder of the test project.
// To compensate, we need to calculate the correct project path and override the application
// environment value so that components like the view engine work properly in the context of the test.
var startupAssembly = typeof(TStartup).GetTypeInfo().Assembly;
var applicationName = startupAssembly.GetName().Name;
var library = libraryManager.GetLibrary(applicationName);
var applicationRoot = Path.GetDirectoryName(library.Path);
var applicationEnvironment = PlatformServices.Default.Application;
services.AddSingleton<IApplicationEnvironment>(
new TestApplicationEnvironment(applicationEnvironment, applicationName, applicationRoot));
// Inject a custom assembly provider. Overrides AddMvc() because that uses TryAdd().
var assemblyProvider = new StaticAssemblyProvider();
assemblyProvider.CandidateAssemblies.Add(startupAssembly);
services.AddSingleton<IAssemblyProvider>(assemblyProvider);
}
}
}