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// Copyright (c) Martin Costello, 2020. All rights reserved.
// Licensed under the Apache 2.0 license. See the LICENSE file in the project root for full license information.
using System;
using System.Net.Http;
using System.Text.Json;
using System.Threading;
using System.Threading.Tasks;
using MartinCostello.Logging.XUnit;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc.Testing;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Xunit.Abstractions;
namespace TodoApp
/// <summary>
/// A class representing a factory for creating instances of the application.
/// </summary>
public class TestServerFixture : WebApplicationFactory<Startup>
/// <summary>
/// Initializes a new instance of the <see cref="TestServerFixture"/> class.
/// </summary>
public TestServerFixture()
: base()
ClientOptions.AllowAutoRedirect = false;
ClientOptions.BaseAddress = new Uri("https://localhost");
ClientOptions.HandleCookies = true;
// HACK Force HTTP server startup
using (CreateDefaultClient())
/// <summary>
/// Gets a set of valid antiforgery tokens for the application as an asynchronous operation.
/// </summary>
/// <param name="httpClientFactory">
/// An optional delegate to a method to provide an <see cref="HttpClient"/> to use to obtain the response.
/// </param>
/// <param name="cancellationToken">
/// The optional <see cref="CancellationToken"/> to use for the HTTP request to obtain the response.
/// </param>
/// <returns>
/// A <see cref="Task{TResult}"/> representing the asynchronous operation to get a set of valid
/// antiforgery (CSRF/XSRF) tokens to use for HTTP POST requests to the test server.
/// </returns>
public async Task<AntiforgeryTokens> GetAntiforgeryTokensAsync(
Func<HttpClient>? httpClientFactory = null,
CancellationToken cancellationToken = default)
using var httpClient = httpClientFactory?.Invoke() ?? CreateClient();
using var response = await httpClient.GetAsync(AntiforgeryTokenController.GetTokensUri, cancellationToken).ConfigureAwait(false);
string json = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
return JsonSerializer.Deserialize<AntiforgeryTokens>(json);
/// <summary>
/// Clears the current <see cref="ITestOutputHelper"/>.
/// </summary>
public virtual void ClearOutputHelper()
=> Server.Services.GetRequiredService<ITestOutputHelperAccessor>().OutputHelper = null;
/// <summary>
/// Sets the <see cref="ITestOutputHelper"/> to use.
/// </summary>
/// <param name="value">The <see cref="ITestOutputHelper"/> to use.</param>
public virtual void SetOutputHelper(ITestOutputHelper value)
=> Server.Services.GetRequiredService<ITestOutputHelperAccessor>().OutputHelper = value;
/// <inheritdoc />
protected override void ConfigureWebHost(IWebHostBuilder builder)
.ConfigureLogging((loggingBuilder) => loggingBuilder.ClearProviders().AddXUnit());