70 lines
2.7 KiB
C#
70 lines
2.7 KiB
C#
// Copyright (c) The Geekeey Authors
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// SPDX-License-Identifier: EUPL-1.2
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using System.Collections;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.Options;
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namespace Geekeey.Request.Dispatcher.Tests;
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internal sealed class SearchHandlerInAssemblyTests
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{
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[Test]
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public async Task I_can_search_handlers_in_an_assembly()
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{
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var assembly = Roslyn.Compile(options => options.AddFromEmbeddedSource("SearchTopLevelHandler.cs"));
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var services = new ServiceCollection();
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services.AddRequestDispatcher(builder => builder
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.SearchHandlerInAssembly(assembly));
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await using var provider = services.BuildServiceProvider();
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var options = provider.GetRequiredService<IOptions<RequestDispatcherOptions>>().Value;
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var requestType = assembly.GetType("Sample.Ping", throwOnError: true)!;
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var handlerType = assembly.GetType("Sample.PingHandler", throwOnError: true)!;
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var handlerInterface = typeof(IScalarRequestHandler<,>).MakeGenericType(requestType, typeof(string));
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var handlers = GetRequestHandlers(options, handlerInterface, provider).ToArray();
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using var scope = Assert.Multiple();
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await Assert.That(handlers).Count().IsEqualTo(1);
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await Assert.That(handlers.Single()!.GetType()).IsEqualTo(handlerType);
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}
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[Test]
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public async Task I_can_search_handlers_in_an_assembly_with_a_lifetime()
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{
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var assembly = Roslyn.Compile(options => options.AddFromEmbeddedSource("SearchTopLevelHandler.cs"));
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var services = new ServiceCollection();
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services.AddRequestDispatcher(builder => builder
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.SearchHandlerInAssembly(assembly, ServiceLifetime.Singleton));
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var handlerType = assembly.GetType("Sample.PingHandler", throwOnError: true)!;
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var descriptor = services.SingleOrDefault(service => service.ServiceType == handlerType);
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using var scope = Assert.Multiple();
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await Assert.That(descriptor).IsNotNull();
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await Assert.That(descriptor!.Lifetime).IsEqualTo(ServiceLifetime.Singleton);
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}
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[Test]
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public async Task I_can_get_an_exception_when_nested_handlers_are_present()
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{
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var assembly = Roslyn.Compile(options => options.AddFromEmbeddedSource("SearchNestedHandler.cs"));
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var services = new ServiceCollection();
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var builder = services.AddRequestDispatcher();
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await Assert.That(() => builder.SearchHandlerInAssembly(assembly))
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.Throws<InvalidOperationException>().And.HasMessageContaining("Sample.Container+PingHandler");
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}
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private static IEnumerable<object?> GetRequestHandlers(RequestDispatcherOptions options, Type handlerInterface,
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IServiceProvider provider)
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{
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return ((IEnumerable)typeof(RequestDispatcherOptions)
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.GetMethod(nameof(RequestDispatcherOptions.GetRequestHandlers))!
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.MakeGenericMethod(handlerInterface)
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.Invoke(options, [provider])!)
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.Cast<object?>();
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}
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}
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