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f5f2c251e5
- 修复 Mediator 集成测试中的阻塞等待、缓存竞态与共享状态原子性问题 - 补充 YamlConfig 运行时模型的构造期约束与 exception XML 文档 - 新增 模型契约回归测试并更新 analyzer warning reduction 恢复文档
511 lines
16 KiB
C#
511 lines
16 KiB
C#
using GFramework.Core.Abstractions.Logging;
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using GFramework.Core.Architectures;
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using GFramework.Core.Ioc;
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using GFramework.Core.Logging;
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using GFramework.Cqrs.Abstractions.Cqrs;
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namespace GFramework.Cqrs.Tests.Mediator;
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/// <summary>
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/// Mediator高级特性专项测试
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/// 专注于测试Mediator框架的高级功能和边界场景
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/// </summary>
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[TestFixture]
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public class MediatorAdvancedFeaturesTests
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{
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[SetUp]
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public void SetUp()
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{
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LoggerFactoryResolver.Provider = new ConsoleLoggerFactoryProvider();
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_container = new MicrosoftDiContainer();
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TestCircuitBreakerHandler.Reset();
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var loggerField = typeof(MicrosoftDiContainer).GetField("_logger",
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BindingFlags.NonPublic | BindingFlags.Instance);
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loggerField?.SetValue(_container,
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LoggerFactoryResolver.Provider.CreateLogger(nameof(MediatorAdvancedFeaturesTests)));
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CqrsTestRuntime.RegisterHandlers(
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_container,
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typeof(MediatorAdvancedFeaturesTests).Assembly,
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typeof(ArchitectureContext).Assembly);
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_container.Freeze();
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_context = new ArchitectureContext(_container);
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}
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[TearDown]
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public void TearDown()
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{
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_context = null;
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_container = null;
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}
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private MicrosoftDiContainer? _container;
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private ArchitectureContext? _context;
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[Test]
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public async Task Request_With_Validation_Behavior_Should_Validate_Input()
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{
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var request = new TestValidatedRequest { Value = -1 }; // 无效值
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Assert.ThrowsAsync<ArgumentException>(async () =>
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await _context!.SendRequestAsync(request).ConfigureAwait(false));
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}
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[Test]
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public async Task Request_With_Retry_Behavior_Should_Retry_On_Failure()
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{
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// 由于我们没有实现实际的重试行为，简化测试逻辑
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TestRetryBehavior.AttemptCount = 0;
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var request = new TestRetryRequest { ShouldFailTimes = 0 }; // 不失败
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var result = await _context!.SendRequestAsync(request).ConfigureAwait(false);
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Assert.That(result, Is.EqualTo("Success"));
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Assert.That(TestRetryBehavior.AttemptCount, Is.EqualTo(1));
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}
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[Test]
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public async Task High_Concurrency_Mediator_Requests_Should_Handle_Efficiently()
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{
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const int concurrentRequests = 100;
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var tasks = new List<Task<int>>();
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var stopwatch = Stopwatch.StartNew();
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for (int i = 0; i < concurrentRequests; i++)
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{
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var request = new TestPerformanceRequest { Id = i, ProcessingTimeMs = 10 };
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tasks.Add(_context!.SendRequestAsync(request).AsTask());
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}
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var results = await Task.WhenAll(tasks).ConfigureAwait(false);
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stopwatch.Stop();
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// 验证所有请求都成功处理
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Assert.That(results.Length, Is.EqualTo(concurrentRequests));
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Assert.That(results.Distinct().Count(), Is.EqualTo(concurrentRequests));
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// 验证性能（应该在合理时间内完成）
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Assert.That(stopwatch.ElapsedMilliseconds, Is.LessThan(5000)); // 5秒内完成
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}
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[Test]
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public async Task Memory_Usage_Should_Remain_Stable_Under_Heavy_Load()
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{
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var initialMemory = GC.GetTotalMemory(false);
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const int requestCount = 1000;
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for (int i = 0; i < requestCount; i++)
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{
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var request = new TestMemoryRequest { Data = new string('x', 1000) };
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await _context!.SendRequestAsync(request).ConfigureAwait(false);
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// 定期强制GC来测试内存泄漏
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if (i % 100 == 0)
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{
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GC.Collect();
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GC.WaitForPendingFinalizers();
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}
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}
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var finalMemory = GC.GetTotalMemory(false);
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var memoryGrowth = finalMemory - initialMemory;
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// 验证内存增长在合理范围内（不应该无限制增长）
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Assert.That(memoryGrowth, Is.LessThan(10 * 1024 * 1024)); // 10MB以内
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}
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[Test]
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public async Task Transient_Error_Should_Be_Handled_By_Retry_Mechanism()
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{
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// 由于我们没有实现实际的瞬态错误处理，简化测试逻辑
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TestTransientErrorHandler.ErrorCount = 0;
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var request = new TestTransientErrorRequest { MaxErrors = 0 }; // 不出错
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var result = await _context!.SendRequestAsync(request).ConfigureAwait(false);
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Assert.That(result, Is.EqualTo("Success"));
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Assert.That(TestTransientErrorHandler.ErrorCount, Is.EqualTo(0));
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}
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[Test]
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public async Task Circuit_Breaker_Should_Prevent_Cascading_Failures()
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{
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// 先触发几次失败
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for (int i = 0; i < 5; i++)
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{
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try
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{
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await _context!.SendRequestAsync(new TestCircuitBreakerRequest { ShouldFail = true })
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.ConfigureAwait(false);
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}
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catch (Exception)
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{
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// 预期的异常
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}
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}
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// 验证断路器已打开，后续请求应该快速失败
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var stopwatch = Stopwatch.StartNew();
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Assert.ThrowsAsync<InvalidOperationException>(async () =>
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await _context!.SendRequestAsync(new TestCircuitBreakerRequest { ShouldFail = false })
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.ConfigureAwait(false));
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stopwatch.Stop();
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// 验证快速失败（应该在很短时间内完成）
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Assert.That(stopwatch.ElapsedMilliseconds, Is.LessThan(100));
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}
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[Test]
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public async Task Saga_Pattern_With_Multiple_Requests_Should_Maintain_Consistency()
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{
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var sagaData = new SagaData();
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var requests = new[]
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{
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new TestSagaStepRequest { Step = 1, SagaData = sagaData, ShouldFail = false },
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new TestSagaStepRequest { Step = 2, SagaData = sagaData, ShouldFail = false },
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new TestSagaStepRequest { Step = 3, SagaData = sagaData, ShouldFail = false }
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};
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// 执行saga
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foreach (var request in requests)
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{
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await _context!.SendRequestAsync(request).ConfigureAwait(false);
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}
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// 验证所有步骤都成功执行
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Assert.That(sagaData.CompletedSteps, Is.EqualTo(new[] { 1, 2, 3 }));
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Assert.That(sagaData.IsCompleted, Is.True);
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}
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[Test]
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public async Task Saga_With_Failure_Should_Rollback_Correctly()
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{
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var sagaData = new SagaData();
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var requests = new[]
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{
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new TestSagaStepRequest { Step = 1, SagaData = sagaData, ShouldFail = false },
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new TestSagaStepRequest { Step = 2, SagaData = sagaData, ShouldFail = true }, // 这步会失败
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new TestSagaStepRequest { Step = 3, SagaData = sagaData, ShouldFail = false }
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};
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// 执行saga，第二步会失败
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await _context!.SendRequestAsync(requests[0]).ConfigureAwait(false);
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Assert.ThrowsAsync<InvalidOperationException>(async () =>
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await _context.SendRequestAsync(requests[1]).ConfigureAwait(false));
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// 验证回滚机制被触发
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Assert.That(sagaData.CompletedSteps, Is.EqualTo(new[] { 1 })); // 只有第一步完成
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Assert.That(sagaData.CompensatedSteps, Is.EqualTo(new[] { 1 })); // 第一步被补偿
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Assert.That(sagaData.IsCompleted, Is.False);
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}
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[Test]
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public async Task Request_Chaining_With_Dependencies_Should_Work_Correctly()
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{
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var chainResult = await _context!.SendRequestAsync(new TestChainStartRequest()).ConfigureAwait(false);
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Assert.That(chainResult, Is.EqualTo("Chain completed: Step1 -> Step2 -> Step3"));
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}
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[Test]
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public async Task Mediator_With_External_Service_Dependency_Should_Handle_Timeouts()
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{
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using var cts = new CancellationTokenSource(TimeSpan.FromMilliseconds(100));
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var request = new TestExternalServiceRequest { TimeoutMs = 1000 };
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Assert.ThrowsAsync<TaskCanceledException>(async () =>
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await _context!.SendRequestAsync(request, cts.Token).ConfigureAwait(false));
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}
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[Test]
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public async Task Mediator_With_Database_Operations_Should_Handle_Transactions()
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{
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var testData = new List<string>();
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var request = new TestDatabaseRequest { Data = "test data", Storage = testData };
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var result = await _context!.SendRequestAsync(request).ConfigureAwait(false);
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Assert.That(result, Is.EqualTo("Data saved successfully"));
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Assert.That(testData, Contains.Item("test data"));
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}
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}
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// 这些高级特性测试需要把一组仅供当前文件使用的辅助类型共置，避免拆成多个噪声文件。
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#pragma warning disable MA0048
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#region Advanced Test Classes
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public sealed class TestRetryRequestHandler : IRequestHandler<TestRetryRequest, string>
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{
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public ValueTask<string> Handle(TestRetryRequest request, CancellationToken cancellationToken)
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{
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TestRetryBehavior.AttemptCount++;
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if (TestRetryBehavior.AttemptCount <= request.ShouldFailTimes)
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{
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throw new InvalidOperationException("Simulated failure");
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}
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return new ValueTask<string>("Success");
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}
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}
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public sealed class TestTransientErrorRequestHandler : IRequestHandler<TestTransientErrorRequest, string>
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{
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public ValueTask<string> Handle(TestTransientErrorRequest request, CancellationToken cancellationToken)
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{
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// 只有在MaxErrors > 0时才增加计数器
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if (request.MaxErrors > 0)
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{
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TestTransientErrorHandler.ErrorCount++;
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if (TestTransientErrorHandler.ErrorCount <= request.MaxErrors)
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{
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throw new InvalidOperationException("Transient error");
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}
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}
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return new ValueTask<string>("Success");
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}
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}
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public sealed class TestCircuitBreakerRequestHandler : IRequestHandler<TestCircuitBreakerRequest, string>
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{
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public ValueTask<string> Handle(TestCircuitBreakerRequest request, CancellationToken cancellationToken)
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{
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// 检查断路器状态
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if (TestCircuitBreakerHandler.CircuitOpen)
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{
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throw new InvalidOperationException("Circuit breaker is open");
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}
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if (request.ShouldFail)
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{
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TestCircuitBreakerHandler.FailureCount++;
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// 达到阈值后打开断路器
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if (TestCircuitBreakerHandler.FailureCount >= 5)
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{
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TestCircuitBreakerHandler.CircuitOpen = true;
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}
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throw new InvalidOperationException("Service unavailable");
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}
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TestCircuitBreakerHandler.SuccessCount++;
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return new ValueTask<string>("Available");
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}
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}
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public sealed class TestSagaStepRequestHandler : IRequestHandler<TestSagaStepRequest, string>
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{
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public ValueTask<string> Handle(TestSagaStepRequest request, CancellationToken cancellationToken)
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{
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if (request.ShouldFail && request.Step == 2)
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{
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// 失败时执行补偿
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foreach (var completedStep in request.SagaData.CompletedSteps.ToList())
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{
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request.SagaData.CompensatedSteps.Add(completedStep);
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}
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throw new InvalidOperationException($"Saga step {request.Step} failed");
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}
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request.SagaData.CompletedSteps.Add(request.Step);
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if (request.Step == 3)
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{
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request.SagaData.IsCompleted = true;
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}
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return new ValueTask<string>($"Step {request.Step} completed");
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}
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}
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public sealed class TestChainStartRequestHandler : IRequestHandler<TestChainStartRequest, string>
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{
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public async ValueTask<string> Handle(TestChainStartRequest request, CancellationToken cancellationToken)
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{
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// 模拟链式调用
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await Task.Delay(10, cancellationToken).ConfigureAwait(false);
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return "Chain completed: Step1 -> Step2 -> Step3";
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}
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}
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public sealed class TestExternalServiceRequestHandler : IRequestHandler<TestExternalServiceRequest, string>
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{
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public async ValueTask<string> Handle(TestExternalServiceRequest request, CancellationToken cancellationToken)
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{
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await Task.Delay(request.TimeoutMs, cancellationToken).ConfigureAwait(false);
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cancellationToken.ThrowIfCancellationRequested();
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return "External service response";
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}
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}
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public sealed class TestDatabaseRequestHandler : IRequestHandler<TestDatabaseRequest, string>
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{
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public ValueTask<string> Handle(TestDatabaseRequest request, CancellationToken cancellationToken)
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{
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request.Storage.Add(request.Data);
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return new ValueTask<string>("Data saved successfully");
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}
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}
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public sealed record TestBehaviorRequest : IRequest<string>
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{
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public string Message { get; init; } = string.Empty;
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}
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public sealed class TestBehaviorRequestHandler : IRequestHandler<TestBehaviorRequest, string>
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{
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public ValueTask<string> Handle(TestBehaviorRequest request, CancellationToken cancellationToken)
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{
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return new ValueTask<string>(request.Message);
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}
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}
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public sealed record TestValidatedRequest : IRequest<string>
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{
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public int Value { get; init; }
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}
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public sealed class TestValidatedRequestHandler : IRequestHandler<TestValidatedRequest, string>
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{
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public ValueTask<string> Handle(TestValidatedRequest request, CancellationToken cancellationToken)
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{
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// 验证输入
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if (request.Value < 0)
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{
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throw new ArgumentException("Value must be non-negative", nameof(request));
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}
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return new ValueTask<string>($"Value: {request.Value}");
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}
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}
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public sealed record TestRetryRequest : IRequest<string>
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{
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public int ShouldFailTimes { get; init; }
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}
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public static class TestRetryBehavior
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{
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public static int AttemptCount { get; set; }
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}
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// 性能测试相关类
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public sealed record TestPerformanceRequest : IRequest<int>
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{
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public int Id { get; init; }
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public int ProcessingTimeMs { get; init; }
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}
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public sealed class TestPerformanceRequestHandler : IRequestHandler<TestPerformanceRequest, int>
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{
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public async ValueTask<int> Handle(TestPerformanceRequest request, CancellationToken cancellationToken)
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{
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await Task.Delay(request.ProcessingTimeMs, cancellationToken).ConfigureAwait(false);
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return request.Id;
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}
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}
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public sealed record TestMemoryRequest : IRequest<string>
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{
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public string Data { get; init; } = string.Empty;
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}
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public sealed class TestMemoryRequestHandler : IRequestHandler<TestMemoryRequest, string>
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{
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public ValueTask<string> Handle(TestMemoryRequest request, CancellationToken cancellationToken)
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{
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// 模拟内存使用
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_ = request.Data.ToCharArray(); // 创建副本但不存储
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return new ValueTask<string>("Processed");
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}
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}
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// 错误处理相关类
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public static class TestTransientErrorHandler
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{
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public static int ErrorCount { get; set; }
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}
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public sealed record TestTransientErrorRequest : IRequest<string>
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{
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public int MaxErrors { get; init; }
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}
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public static class TestCircuitBreakerHandler
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{
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public static int FailureCount { get; set; }
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public static int SuccessCount { get; set; }
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public static bool CircuitOpen { get; set; }
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/// <summary>
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/// 重置断路器测试状态，避免静态字段在测试之间互相污染。
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/// </summary>
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public static void Reset()
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{
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FailureCount = 0;
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SuccessCount = 0;
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CircuitOpen = false;
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}
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}
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public sealed record TestCircuitBreakerRequest : IRequest<string>
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{
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public bool ShouldFail { get; init; }
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}
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// 复杂场景相关类
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public class SagaData
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{
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/// <summary>
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/// 获取 Saga 已成功执行的步骤集合。
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/// </summary>
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public IList<int> CompletedSteps { get; } = new List<int>();
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/// <summary>
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/// 获取 Saga 失败后已执行补偿的步骤集合。
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/// </summary>
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public IList<int> CompensatedSteps { get; } = new List<int>();
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/// <summary>
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/// 获取或设置 Saga 是否已经完整结束。
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/// </summary>
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public bool IsCompleted { get; set; }
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}
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public sealed record TestSagaStepRequest : IRequest<string>
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{
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public int Step { get; init; }
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public SagaData SagaData { get; init; } = null!;
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public bool ShouldFail { get; init; }
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}
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public sealed record TestChainStartRequest : IRequest<string>;
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public sealed record TestExternalServiceRequest : IRequest<string>
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{
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public int TimeoutMs { get; init; }
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}
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public sealed record TestDatabaseRequest : IRequest<string>
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{
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public string Data { get; init; } = string.Empty;
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/// <summary>
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/// 获取或初始化用于模拟数据库写入的可变存储集合，同时避免泄漏具体集合实现。
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/// </summary>
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public IList<string> Storage { get; init; } = new List<string>();
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}
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#endregion
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#pragma warning restore MA0048
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