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Deflake ConcurrentPipeWriterTests.PassthroughIfAllFlushesAreAw… (#13563)

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Stephen Halter 2019-08-30 10:35:36 -07:00 committed by GitHub
parent 5358a6f33e
commit 5d0b314e7d
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1 changed files with 34 additions and 19 deletions
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53
src/Servers/Kestrel/Core/test/ConcurrentPipeWriterTests.cs
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@ -24,39 +24,54 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Core.Tests
new TaskCompletionSource<FlushResult>(TaskCreationOptions.RunContinuationsAsynchronously),
};
var sync = new object();
var mockPipeWriter = new MockPipeWriter(pipeWriterFlushTcsArray);
var concurrentPipeWriter = new ConcurrentPipeWriter(mockPipeWriter, diagnosticPool, sync);
// No need to pass in a real sync object since all the calls in this test are passthrough.
var concurrentPipeWriter = new ConcurrentPipeWriter(mockPipeWriter, diagnosticPool, new object());
ValueTask<FlushResult> flushTask;
var memory = concurrentPipeWriter.GetMemory();
Assert.Equal(1, mockPipeWriter.GetMemoryCallCount);
lock (sync)
{
var memory = concurrentPipeWriter.GetMemory();
Assert.Equal(1, mockPipeWriter.GetMemoryCallCount);
concurrentPipeWriter.Advance(memory.Length);
Assert.Equal(1, mockPipeWriter.AdvanceCallCount);
concurrentPipeWriter.Advance(memory.Length);
Assert.Equal(1, mockPipeWriter.AdvanceCallCount);
var flushTask0 = concurrentPipeWriter.FlushAsync();
Assert.Equal(1, mockPipeWriter.FlushCallCount);
flushTask = concurrentPipeWriter.FlushAsync();
Assert.Equal(1, mockPipeWriter.FlushCallCount);
pipeWriterFlushTcsArray[0].SetResult(default);
pipeWriterFlushTcsArray[0].SetResult(default);
}
await flushTask0.DefaultTimeout();
await flushTask.DefaultTimeout();
memory = concurrentPipeWriter.GetMemory();
Assert.Equal(2, mockPipeWriter.GetMemoryCallCount);
lock (sync)
{
var memory = concurrentPipeWriter.GetMemory();
Assert.Equal(2, mockPipeWriter.GetMemoryCallCount);
concurrentPipeWriter.Advance(memory.Length);
Assert.Equal(2, mockPipeWriter.AdvanceCallCount);
concurrentPipeWriter.Advance(memory.Length);
Assert.Equal(2, mockPipeWriter.AdvanceCallCount);
var flushTask1 = concurrentPipeWriter.FlushAsync();
Assert.Equal(2, mockPipeWriter.FlushCallCount);
flushTask = concurrentPipeWriter.FlushAsync();
Assert.Equal(2, mockPipeWriter.FlushCallCount);
pipeWriterFlushTcsArray[1].SetResult(default);
pipeWriterFlushTcsArray[1].SetResult(default);
}
await flushTask1.DefaultTimeout();
await flushTask.DefaultTimeout();
var completeEx = new Exception();
await concurrentPipeWriter.CompleteAsync(completeEx).DefaultTimeout();
ValueTask completeTask;
lock (sync)
{
completeTask = concurrentPipeWriter.CompleteAsync(completeEx);
}
await completeTask.DefaultTimeout();
Assert.Same(completeEx, mockPipeWriter.CompleteException);
}
}