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feat: create request projects for basic CQRS

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This commit is contained in:
Louis Seubert 2026-05-08 20:26:26 +02:00
commit d614788e06
Signed by: louis9902
GPG key ID: 4B9DB28F826553BD
190 changed files with 12236 additions and 0 deletions
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src/request.dispatcher.tests/SearchHandlerInAssemblyTests.cs Normal file
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// Copyright (c) The Geekeey Authors
// SPDX-License-Identifier: EUPL-1.2
using System.Collections;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Options;
namespace Geekeey.Request.Dispatcher.Tests;
internal sealed class SearchHandlerInAssemblyTests
{
[Test]
public async Task I_can_search_handlers_in_an_assembly()
{
var assembly = Roslyn.Compile(options => options.AddFromEmbeddedSource("SearchTopLevelHandler.cs"));
var services = new ServiceCollection();
services.AddRequestDispatcher(builder => builder
.SearchHandlerInAssembly(assembly));
await using var provider = services.BuildServiceProvider();
var options = provider.GetRequiredService<IOptions<RequestDispatcherOptions>>().Value;
var requestType = assembly.GetType("Sample.Ping", throwOnError: true)!;
var handlerType = assembly.GetType("Sample.PingHandler", throwOnError: true)!;
var handlerInterface = typeof(IScalarRequestHandler<,>).MakeGenericType(requestType, typeof(string));
var handlers = GetRequestHandlers(options, handlerInterface, provider).ToArray();
using var scope = Assert.Multiple();
await Assert.That(handlers).Count().IsEqualTo(1);
await Assert.That(handlers.Single()!.GetType()).IsEqualTo(handlerType);
}
[Test]
public async Task I_can_search_handlers_in_an_assembly_with_a_lifetime()
{
var assembly = Roslyn.Compile(options => options.AddFromEmbeddedSource("SearchTopLevelHandler.cs"));
var services = new ServiceCollection();
services.AddRequestDispatcher(builder => builder
.SearchHandlerInAssembly(assembly, ServiceLifetime.Singleton));
var handlerType = assembly.GetType("Sample.PingHandler", throwOnError: true)!;
var descriptor = services.SingleOrDefault(service => service.ServiceType == handlerType);
using var scope = Assert.Multiple();
await Assert.That(descriptor).IsNotNull();
await Assert.That(descriptor!.Lifetime).IsEqualTo(ServiceLifetime.Singleton);
}
[Test]
public async Task I_can_get_an_exception_when_nested_handlers_are_present()
{
var assembly = Roslyn.Compile(options => options.AddFromEmbeddedSource("SearchNestedHandler.cs"));
var services = new ServiceCollection();
var builder = services.AddRequestDispatcher();
await Assert.That(() => builder.SearchHandlerInAssembly(assembly))
.Throws<InvalidOperationException>().And.HasMessageContaining("Sample.Container+PingHandler");
}
private static IEnumerable<object?> GetRequestHandlers(RequestDispatcherOptions options, Type handlerInterface,
IServiceProvider provider)
{
return ((IEnumerable)typeof(RequestDispatcherOptions)
.GetMethod(nameof(RequestDispatcherOptions.GetRequestHandlers))!
.MakeGenericMethod(handlerInterface)
.Invoke(options, [provider])!)
.Cast<object?>();
}
}