public void CreateHostBuilderPattern__Invalid_CantFindServiceProvider()
{
var factory = HostFactoryResolver.ResolveServiceProviderFactory(typeof(CreateHostBuilderInvalidSignature.Program).Assembly, s_WaitTimeout);
Assert.NotNull(factory);
Assert.Throws <InvalidOperationException>(() => factory(Array.Empty <string>()));
}
public void NoSpecialEntryPointPatternHangs()
{
var factory = HostFactoryResolver.ResolveServiceProviderFactory(typeof(NoSpecialEntryPointPatternHangs.Program).Assembly, s_WaitTimeout);
Assert.NotNull(factory);
Assert.Throws <InvalidOperationException>(() => factory(Array.Empty <string>()));
}
public void CreateWebHostBuilderPattern__InvalidReturnType_CanFindServiceProvider()
{
var factory = HostFactoryResolver.ResolveServiceProviderFactory(typeof(CreateWebHostBuilderInvalidSignature.Program).Assembly);
Assert.NotNull(factory);
Assert.Null(factory(Array.Empty <string>()));
}
public void BuildWebHostPattern_CanFindWebHost()
{
var factory = HostFactoryResolver.ResolveWebHostFactory <IWebHost>(typeof(BuildWebHostPatternTestSite.Program).Assembly);
Assert.NotNull(factory);
Assert.IsAssignableFrom <IWebHost>(factory(Array.Empty <string>()));
}
public void CreateWebHostBuilderPattern_CanFindServiceProvider()
{
var factory = HostFactoryResolver.ResolveServiceProviderFactory(typeof(CreateWebHostBuilderPatternTestSite.Program).Assembly);
Assert.NotNull(factory);
Assert.IsAssignableFrom <IServiceProvider>(factory(Array.Empty <string>()));
}
public void NoSpecialEntryPointPatternMainNoArgs()
{
var factory = HostFactoryResolver.ResolveServiceProviderFactory(typeof(NoSpecialEntryPointPatternMainNoArgs.Program).Assembly, s_WaitTimeout);
Assert.NotNull(factory);
Assert.IsAssignableFrom <IServiceProvider>(factory(Array.Empty <string>()));
}
public void CreateHostBuilderPattern_CanFindHostBuilder()
{
var factory = HostFactoryResolver.ResolveHostBuilderFactory <MockHostTypes.IHostBuilder>(typeof(CreateHostBuilderPatternTestSite.Program).Assembly);
Assert.NotNull(factory);
Assert.IsAssignableFrom <MockHostTypes.IHostBuilder>(factory(Array.Empty <string>()));
}
public void TopLevelStatements()
{
var assembly = Assembly.Load("TopLevelStatements");
var factory = HostFactoryResolver.ResolveServiceProviderFactory(assembly, s_WaitTimeout);
Assert.NotNull(factory);
Assert.IsAssignableFrom <IServiceProvider>(factory(Array.Empty <string>()));
}
public void TopLevelStatementsTestsTimeout()
{
var assembly = Assembly.Load("TopLevelStatementsTestsTimeout");
var factory = HostFactoryResolver.ResolveServiceProviderFactory(assembly, s_WaitTimeout);
Assert.NotNull(factory);
Assert.Throws <InvalidOperationException>(() => factory(Array.Empty <string>()));
}
private IServiceProvider?CreateFromHosting(string[] args)
{
_reporter.WriteVerbose(DesignStrings.FindingHostingServices);
var serviceProviderFactory = HostFactoryResolver.ResolveServiceProviderFactory(_startupAssembly);
if (serviceProviderFactory == null)
{
_reporter.WriteVerbose(DesignStrings.NoCreateHostBuilder);
return(null);
}
var aspnetCoreEnvironment = Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT");
var dotnetEnvironment = Environment.GetEnvironmentVariable("DOTNET_ENVIRONMENT");
var environment = aspnetCoreEnvironment
?? dotnetEnvironment
?? "Development";
if (aspnetCoreEnvironment == null)
{
Environment.SetEnvironmentVariable("ASPNETCORE_ENVIRONMENT", environment);
}
if (dotnetEnvironment == null)
{
Environment.SetEnvironmentVariable("DOTNET_ENVIRONMENT", environment);
}
_reporter.WriteVerbose(DesignStrings.UsingEnvironment(environment));
try
{
var services = serviceProviderFactory(args);
if (services == null)
{
_reporter.WriteWarning(DesignStrings.MalformedCreateHostBuilder);
return(null);
}
_reporter.WriteVerbose(DesignStrings.UsingHostingServices);
return(services.CreateScope().ServiceProvider);
}
catch (Exception ex)
{
if (ex is TargetInvocationException)
{
ex = ex.InnerException !;
}
_reporter.WriteVerbose(ex.ToString());
_reporter.WriteWarning(DesignStrings.InvokeCreateHostBuilderFailed(ex.Message));
return(null);
}
}
public void ApplicationNameSetFromArgument()
{
Assembly assembly = Assembly.Load("ApplicationNameSetFromArgument");
var factory = HostFactoryResolver.ResolveServiceProviderFactory(assembly, s_WaitTimeout);
IServiceProvider?serviceProvider = factory(Array.Empty <string>());
var configuration = (IConfiguration)serviceProvider.GetService(typeof(IConfiguration));
Assert.Contains("ApplicationNameSetFromArgument", configuration["applicationName"]);
}
/// <summary>
/// Creates a <see cref="IHostBuilder"/> used to set up <see cref="TestServer"/>.
/// </summary>
/// <remarks>
/// The default implementation of this method looks for a <c>public static IHostBuilder CreateHostBuilder(string[] args)</c>
/// method defined on the entry point of the assembly of <typeparamref name="TEntryPoint" /> and invokes it passing an empty string
/// array as arguments.
/// </remarks>
/// <returns>A <see cref="IHostBuilder"/> instance.</returns>
protected virtual IHostBuilder CreateHostBuilder()
{
var hostBuilder = HostFactoryResolver.ResolveHostBuilderFactory <IHostBuilder>(typeof(TEntryPoint).Assembly)?.Invoke(Array.Empty <string>());
if (hostBuilder != null)
{
hostBuilder.UseEnvironment(Environments.Development);
}
return(hostBuilder);
}
public void NoSpecialEntryPointPatternThrows()
{
using var _ = RemoteExecutor.Invoke(() =>
{
var factory = HostFactoryResolver.ResolveServiceProviderFactory(typeof(NoSpecialEntryPointPatternThrows.Program).Assembly, s_WaitTimeout);
Assert.NotNull(factory);
Assert.Throws <Exception>(() => factory(Array.Empty <string>()));
});
}
public void NoSpecialEntryPointPattern()
{
using var _ = RemoteExecutor.Invoke(() =>
{
var factory = HostFactoryResolver.ResolveServiceProviderFactory(typeof(NoSpecialEntryPointPattern.Program).Assembly, s_WaitTimeout);
Assert.NotNull(factory);
Assert.IsAssignableFrom <IServiceProvider>(factory(Array.Empty <string>()));
});
}
public int Process()
{
var assemblyName = new AssemblyName(_context.AssemblyName);
var assembly = Assembly.Load(assemblyName);
var entryPointType = assembly.EntryPoint?.DeclaringType;
if (entryPointType == null)
{
_reporter.WriteError(Resources.FormatMissingEntryPoint(_context.AssemblyPath));
return(3);
}
try
{
var serviceFactory = HostFactoryResolver.ResolveServiceProviderFactory(assembly);
if (serviceFactory == null)
{
_reporter.WriteError(Resources.FormatMethodsNotFound(
HostFactoryResolver.BuildWebHost,
HostFactoryResolver.CreateHostBuilder,
HostFactoryResolver.CreateWebHostBuilder,
entryPointType));
return(4);
}
var services = serviceFactory(Array.Empty <string>());
if (services == null)
{
_reporter.WriteError(Resources.FormatServiceProviderNotFound(
typeof(IServiceProvider),
HostFactoryResolver.BuildWebHost,
HostFactoryResolver.CreateHostBuilder,
HostFactoryResolver.CreateWebHostBuilder,
entryPointType));
return(5);
}
var success = GetDocuments(services);
if (!success)
{
return(6);
}
}
catch (Exception ex)
{
_reporter.WriteError(ex.ToString());
return(7);
}
return(0);
}
private IServiceProvider CreateFromHosting(string[] args)
{
_reporter.WriteVerbose(DesignStrings.FindingHostingServices);
var serviceProviderFactory = HostFactoryResolver.ResolveServiceProviderFactory(_startupAssembly);
if (serviceProviderFactory == null)
{
_reporter.WriteVerbose(DesignStrings.NoCreateHostBuilder);
return null;
}
// TODO: Remove when dotnet/cli#6617 is fixed
var environment = Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT");
if (environment == null)
{
environment = "Development";
Environment.SetEnvironmentVariable("ASPNETCORE_ENVIRONMENT", environment);
}
_reporter.WriteVerbose(DesignStrings.UsingEnvironment(environment));
try
{
var services = serviceProviderFactory(args);
if (services == null)
{
_reporter.WriteWarning(DesignStrings.MalformedCreateHostBuilder);
return null;
}
_reporter.WriteVerbose(DesignStrings.UsingHostingServices);
return services.CreateScope().ServiceProvider;
}
catch (Exception ex)
{
if (ex is TargetInvocationException)
{
ex = ex.InnerException;
}
_reporter.WriteVerbose(ex.ToString());
_reporter.WriteWarning(DesignStrings.InvokeCreateHostBuilderFailed(ex.Message));
return null;
}
}
public void NoSpecialEntryPointPatternHostBuilderConfigureHostBuilderCallbackIsCalled()
{
bool called = false;
void ConfigureHostBuilder(object hostBuilder)
{
Assert.IsAssignableFrom <IHostBuilder>(hostBuilder);
called = true;
}
var factory = HostFactoryResolver.ResolveHostFactory(typeof(NoSpecialEntryPointPattern.Program).Assembly, waitTimeout: s_WaitTimeout, configureHostBuilder: ConfigureHostBuilder);
Assert.NotNull(factory);
Assert.IsAssignableFrom <IHost>(factory(Array.Empty <string>()));
Assert.True(called);
}
public void NoSpecialEntryPointPatternBuildsThenThrowsCallsEntryPointCompletedCallbackWithException()
{
var wait = new ManualResetEventSlim(false);
Exception?entryPointException = null;
void EntryPointCompleted(Exception?exception)
{
entryPointException = exception;
wait.Set();
}
var factory = HostFactoryResolver.ResolveHostFactory(typeof(NoSpecialEntryPointPatternBuildsThenThrows.Program).Assembly, waitTimeout: s_WaitTimeout, stopApplication: false, entrypointCompleted: EntryPointCompleted);
Assert.NotNull(factory);
Assert.IsAssignableFrom <IHost>(factory(Array.Empty <string>()));
Assert.True(wait.Wait(s_WaitTimeout));
Assert.NotNull(entryPointException);
}
public void NoSpecialEntryPointPatternCanRunInParallel()
{
var factory = HostFactoryResolver.ResolveServiceProviderFactory(typeof(NoSpecialEntryPointPattern.Program).Assembly, s_WaitTimeout);
Assert.NotNull(factory);
var tasks = new Task <IServiceProvider> [30];
int index = 0;
for (int i = 0; i < tasks.Length; i++)
{
tasks[index++] = Task.Run(() => factory(Array.Empty <string>()));
}
Task.WaitAll(tasks);
foreach (var t in tasks)
{
Assert.IsAssignableFrom <IServiceProvider>(t.Result);
}
}
public void CreateWebHostBuilderPattern__Invalid_CantFindWebHostBuilder()
{
var factory = HostFactoryResolver.ResolveWebHostBuilderFactory <IWebHostBuilder>(typeof(CreateWebHostBuilderInvalidSignature.Program).Assembly);
Assert.Null(factory);
}
public void BuildWebHostPattern__Invalid_CantFindServiceProvider()
{
var factory = HostFactoryResolver.ResolveServiceProviderFactory(typeof(BuildWebHostInvalidSignature.Program).Assembly);
Assert.NotNull(factory);
}
public void BuildWebHostPattern__Invalid_CantFindWebHost()
{
var factory = HostFactoryResolver.ResolveWebHostFactory <IWebHost>(typeof(BuildWebHostInvalidSignature.Program).Assembly);
Assert.Null(factory);
}
public void CreateHostBuilderPattern__Invalid_CantFindServiceProvider()
{
var factory = HostFactoryResolver.ResolveServiceProviderFactory(typeof(CreateHostBuilderInvalidSignature.Program).Assembly);
Assert.Null(factory);
}
internal static IServiceProvider GetServiceProviderWithHostFactoryResolver(Assembly assembly)
{
#if NETCOREAPP2_1 || NETFRAMEWORK
return(null);
#else
// We're disabling the default server and the console host lifetime. This will disable:
// 1. Listening on ports
// 2. Logging to the console from the default host.
// This is essentially what the test server does in order to get access to the application's
// IServicerProvider *and* middleware pipeline.
void ConfigureHostBuilder(object hostBuilder)
{
((IHostBuilder)hostBuilder).ConfigureServices((context, services) =>
{
services.AddSingleton <IServer, NoopServer>();
services.AddSingleton <IHostLifetime, NoopHostLifetime>();
});
}
var waitForStartTcs = new TaskCompletionSource <object>();
void OnEntryPointExit(Exception exception)
{
// If the entry point exited, we'll try to complete the wait
if (exception != null)
{
waitForStartTcs.TrySetException(exception);
}
else
{
waitForStartTcs.TrySetResult(null);
}
}
// If all of the existing techniques fail, then try to resolve the ResolveHostFactory
var factory = HostFactoryResolver.ResolveHostFactory(assembly,
stopApplication: false,
configureHostBuilder: ConfigureHostBuilder,
entrypointCompleted: OnEntryPointExit);
// We're unable to resolve the factory. This could mean the application wasn't referencing the right
// version of hosting.
if (factory == null)
{
return(null);
}
try
{
// Get the IServiceProvider from the host
#if NET6_0_OR_GREATER
var assemblyName = assembly.GetName()?.FullName ?? string.Empty;
// We should set the application name to the startup assembly to avoid falling back to the entry assembly.
var services = ((IHost)factory(new[] { $"--{HostDefaults.ApplicationKey}={assemblyName}" })).Services;
#else
var services = ((IHost)factory(Array.Empty <string>())).Services;
#endif
// Wait for the application to start so that we know it's fully configured. This is important because
// we need the middleware pipeline to be configured before we access the ISwaggerProvider in
// in the IServiceProvider
var applicationLifetime = services.GetRequiredService <IHostApplicationLifetime>();
using (var registration = applicationLifetime.ApplicationStarted.Register(() => waitForStartTcs.TrySetResult(null)))
{
waitForStartTcs.Task.Wait();
return(services);
}
}
catch (InvalidOperationException)
{
// We're unable to resolve the host, swallow the exception and return null
}
return(null);
#endif
}
public static IWebHostBuilder CreateFromAssemblyEntryPoint(Assembly assembly, string[] args)
{
var factory = HostFactoryResolver.ResolveWebHostBuilderFactory <IWebHostBuilder>(assembly);
return(factory?.Invoke(args));
}
