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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Runtime.CompilerServices;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Server.IntegrationTesting;
using Microsoft.AspNetCore.InternalTesting;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Logging.Testing;
using Microsoft.Net.Http.Headers;
using Xunit;
using Xunit.Abstractions;
using Xunit.Sdk;
namespace ServerComparison.FunctionalTests;
public class ResponseTests : LoggedTest
{
public ResponseTests(ITestOutputHelper output) : base(output)
{
}
public static TestMatrix TestVariants
=> TestMatrix.ForServers(/* ServerType.IISExpress, https://github.com/dotnet/aspnetcore/issues/6168, */ ServerType.Kestrel, ServerType.Nginx, ServerType.HttpSys)
.WithTfms(Tfm.Default)
.WithAllHostingModels();
[ConditionalTheory]
[MemberData(nameof(TestVariants))]
public Task ResponseFormats_ContentLength(TestVariant variant)
{
return ResponseFormats(variant, CheckContentLengthAsync);
}
[ConditionalTheory]
[MemberData(nameof(TestVariants))]
public Task ResponseFormats_Chunked(TestVariant variant)
{
return ResponseFormats(variant, CheckChunkedAsync);
}
[ConditionalTheory]
[MemberData(nameof(TestVariants))]
public Task ResponseFormats_ManuallyChunk(TestVariant variant)
{
return ResponseFormats(variant, CheckManuallyChunkedAsync);
}
public static TestMatrix SelfhostTestVariants
=> TestMatrix.ForServers(ServerType.Kestrel, ServerType.HttpSys)
.WithTfms(Tfm.Default);
// Connection Close tests do not work through reverse proxies
[ConditionalTheory]
[MemberData(nameof(SelfhostTestVariants))]
public Task ResponseFormats_Http10ConnectionClose(TestVariant variant)
{
return ResponseFormats(variant, CheckHttp10ConnectionCloseAsync);
}
[ConditionalTheory]
[MemberData(nameof(SelfhostTestVariants))]
public Task ResponseFormats_Http11ConnectionClose(TestVariant variant)
{
return ResponseFormats(variant, CheckHttp11ConnectionCloseAsync);
}
[ConditionalTheory]
[MemberData(nameof(SelfhostTestVariants))]
public Task ResponseFormats_ManuallyChunkAndClose(TestVariant variant)
{
return ResponseFormats(variant, CheckManuallyChunkedAndCloseAsync);
}
private async Task ResponseFormats(TestVariant variant, Func<HttpClient, ILogger, Task> scenario, [CallerMemberName] string testName = null)
{
testName = $"{testName}_{variant.Server}_{variant.Tfm}_{variant.Architecture}_{variant.ApplicationType}";
using (StartLog(out var loggerFactory,
variant.Server == ServerType.Nginx ? LogLevel.Trace : LogLevel.Debug, // https://github.com/aspnet/ServerTests/issues/144
testName))
{
var logger = loggerFactory.CreateLogger("ResponseFormats");
var deploymentParameters = new DeploymentParameters(variant)
{
ApplicationPath = Helpers.GetApplicationPath(),
EnvironmentName = "Responses"
};
if (variant.Server == ServerType.Nginx)
{
deploymentParameters.ServerConfigTemplateContent = Helpers.GetNginxConfigContent("nginx.conf");
}
using (var deployer = IISApplicationDeployerFactory.Create(deploymentParameters, loggerFactory))
{
var deploymentResult = await deployer.DeployAsync();
// Request to base address and check if various parts of the body are rendered & measure the cold startup time.
var response = await RetryHelper.RetryRequest(() =>
{
return deploymentResult.HttpClient.GetAsync(string.Empty);
}, logger, deploymentResult.HostShutdownToken);
var responseText = await response.Content.ReadAsStringAsync();
try
{
Assert.Equal("Running", responseText);
}
catch (XunitException)
{
logger.LogWarning(response.ToString());
logger.LogWarning(responseText);
throw;
}
await scenario(deploymentResult.HttpClient, logger);
}
}
}
private static async Task CheckContentLengthAsync(HttpClient client, ILogger logger)
{
logger.LogInformation("Testing ContentLength");
var requestMessage = new HttpRequestMessage(HttpMethod.Get, "contentlength")
{
Version = new Version(1, 1)
};
var response = await client.SendAsync(requestMessage);
var responseText = await response.Content.ReadAsStringAsync();
try
{
Assert.Equal("Content Length", responseText);
Assert.Null(response.Headers.TransferEncodingChunked);
Assert.Null(response.Headers.ConnectionClose);
Assert.Equal("14", GetContentLength(response));
}
catch (XunitException)
{
logger.LogWarning(response.ToString());
logger.LogWarning(responseText);
throw;
}
}
private static async Task CheckHttp11ConnectionCloseAsync(HttpClient client, ILogger logger)
{
logger.LogInformation("Testing Http11ConnectionClose");
var response = await client.GetAsync("connectionclose");
var responseText = await response.Content.ReadAsStringAsync();
try
{
Assert.Equal("Connnection Close", responseText);
Assert.True(response.Headers.ConnectionClose, "/connectionclose, closed?");
Assert.True(response.Headers.TransferEncodingChunked);
Assert.Null(GetContentLength(response));
}
catch (XunitException)
{
logger.LogWarning(response.ToString());
logger.LogWarning(responseText);
throw;
}
}
private static async Task CheckHttp10ConnectionCloseAsync(HttpClient client, ILogger logger)
{
logger.LogInformation("Testing Http10ConnectionClose");
var requestMessage = new HttpRequestMessage(HttpMethod.Get, "connectionclose")
{
Version = new Version(1, 0)
};
var response = await client.SendAsync(requestMessage);
var responseText = await response.Content.ReadAsStringAsync();
try
{
Assert.Equal("Connnection Close", responseText);
Assert.True(response.Headers.ConnectionClose, "/connectionclose, closed?");
Assert.Null(response.Headers.TransferEncodingChunked);
Assert.Null(GetContentLength(response));
}
catch (XunitException)
{
logger.LogWarning(response.ToString());
logger.LogWarning(responseText);
throw;
}
}
private static async Task CheckChunkedAsync(HttpClient client, ILogger logger)
{
logger.LogInformation("Testing Chunked");
var requestMessage = new HttpRequestMessage(HttpMethod.Get, "chunked")
{
Version = new Version(1, 1)
};
var response = await client.SendAsync(requestMessage);
var responseText = await response.Content.ReadAsStringAsync();
try
{
Assert.Equal("Chunked", responseText);
Assert.True(response.Headers.TransferEncodingChunked, "/chunked, chunked?");
Assert.Null(response.Headers.ConnectionClose);
Assert.Null(GetContentLength(response));
}
catch (XunitException)
{
logger.LogWarning(response.ToString());
logger.LogWarning(responseText);
throw;
}
}
private static async Task CheckManuallyChunkedAsync(HttpClient client, ILogger logger)
{
logger.LogInformation("Testing ManuallyChunked");
var requestMessage = new HttpRequestMessage(HttpMethod.Get, "manuallychunked")
{
Version = new Version(1, 1)
};
var response = await client.SendAsync(requestMessage);
var responseText = await response.Content.ReadAsStringAsync();
try
{
Assert.Equal("Manually Chunked", responseText);
Assert.True(response.Headers.TransferEncodingChunked, "/manuallychunked, chunked?");
Assert.Null(response.Headers.ConnectionClose);
Assert.Null(GetContentLength(response));
}
catch (XunitException)
{
logger.LogWarning(response.ToString());
logger.LogWarning(responseText);
throw;
}
}
private static async Task CheckManuallyChunkedAndCloseAsync(HttpClient client, ILogger logger)
{
logger.LogInformation("Testing ManuallyChunkedAndClose");
var response = await client.GetAsync("manuallychunkedandclose");
var responseText = await response.Content.ReadAsStringAsync();
try
{
Assert.Equal("Manually Chunked and Close", responseText);
Assert.True(response.Headers.TransferEncodingChunked, "/manuallychunkedandclose, chunked?");
Assert.True(response.Headers.ConnectionClose, "/manuallychunkedandclose, closed?");
Assert.Null(GetContentLength(response));
}
catch (XunitException)
{
logger.LogWarning(response.ToString());
logger.LogWarning(responseText);
throw;
}
}
private static string GetContentLength(HttpResponseMessage response)
{
// Don't use response.Content.Headers.ContentLength, it will dynamically calculate the value if it can.
IEnumerable<string> values;
return response.Content.Headers.TryGetValues(HeaderNames.ContentLength, out values) ? values.FirstOrDefault() : null;
}
}
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