aspnetcore/test/IISExpress.FunctionalTests/OutOfProcess/MultipleAppTests.cs

82 lines
3.6 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.Collections.Generic;
using System.Net;
using System.Net.Http;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Server.IIS.FunctionalTests.Utilities;
using Microsoft.AspNetCore.Server.IntegrationTesting;
using Microsoft.AspNetCore.Testing.xunit;
using Xunit;
namespace Microsoft.AspNetCore.Server.IISIntegration.FunctionalTests
{
[Collection(PublishedSitesCollection.Name)]
public class MultipleAppTests : IISFunctionalTestBase
{
private readonly PublishedSitesFixture _fixture;
public MultipleAppTests(PublishedSitesFixture fixture)
{
_fixture = fixture;
}
[ConditionalTheory]
[InlineData(AncmVersion.AspNetCoreModule)]
[InlineData(AncmVersion.AspNetCoreModuleV2)]
public Task Startup(AncmVersion ancmVersion)
{
// ANCM v1 currently does *not* retry if an app fails to start the first time due to a port collision.
// So, this test is expected to fail on v1 approximately 1 in 1,000 times (probably of at least one collision
// when 10 sites choose a random port from the range 1025-48000). Adding one retry should reduce the failure
// rate from 1 in 1,000 to 1 in 1,000,000. The previous product code (with "srand(GetTickCount())") should still
// fail the test reliably.
// https://github.com/aspnet/IISIntegration/issues/1350
//
// ANCM v2 does retry on port collisions, so no retries should be required.
var attempts = (ancmVersion == AncmVersion.AspNetCoreModule) ? 2 : 1;
return Helpers.Retry(async () =>
{
const int numApps = 10;
using (var deployers = new DisposableList<ApplicationDeployer>())
{
var deploymentResults = new List<DeploymentResult>();
// Deploy all apps
for (var i = 0; i < numApps; i++)
{
var deploymentParameters = _fixture.GetBaseDeploymentParameters(hostingModel: IntegrationTesting.HostingModel.OutOfProcess);
deploymentParameters.AncmVersion = ancmVersion;
var deployer = CreateDeployer(deploymentParameters);
deployers.Add(deployer);
deploymentResults.Add(await deployer.DeployAsync());
}
// Start all requests as quickly as possible, so apps are started as quickly as possible,
// to test possible race conditions when multiple apps start at the same time.
var requestTasks = new List<Task<HttpResponseMessage>>();
foreach (var deploymentResult in deploymentResults)
{
requestTasks.Add(deploymentResult.HttpClient.GetAsync("/HelloWorld"));
}
// Verify all apps started and return expected response
foreach (var requestTask in requestTasks)
{
var response = await requestTask;
Assert.Equal(HttpStatusCode.OK, response.StatusCode);
var responseText = await response.Content.ReadAsStringAsync();
Assert.Equal("Hello World", responseText);
}
}
},
attempts: attempts, msDelay: 0);
}
}
}