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test: observe monitor waits without delays

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Erik 2026-08-18 12:56:25 +02:00
parent ea17bc8624
commit fa4bdfe89f
4 changed files with 127 additions and 35 deletions
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32
tests/AcDream.App.Tests/Rendering/HostQuiescenceGateTests.cs
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@ -20,20 +20,38 @@ public sealed class HostQuiescenceGateTests
Assert.True(callbackEntered.Wait(TimeSpan.FromSeconds(5)));
using var stopStarted = new ManualResetEventSlim(false);
Task stop = Task.Run(() =>
Exception? stopError = null;
var stopThread = new Thread(() =>
{
stopStarted.Set();
gate.StopAccepting();
});
Assert.True(stopStarted.Wait(TimeSpan.FromSeconds(5)));
await Task.Delay(50);
Assert.False(stop.IsCompleted);
try
{
gate.StopAccepting();
}
catch (Exception error)
{
stopError = error;
}
})
{
IsBackground = true,
Name = "HostQuiescenceGate external stop contract",
};
stopThread.Start();
bool stopStartedInTime = stopStarted.Wait(TimeSpan.FromSeconds(5));
bool stopBlockedOnCallback = stopStartedInTime && SpinWait.SpinUntil(
() => (stopThread.ThreadState & ThreadState.WaitSleepJoin) != 0,
TimeSpan.FromSeconds(5));
releaseCallback.Set();
await callback;
await stop;
bool stopJoined = stopThread.Join(TimeSpan.FromSeconds(5));
gate.Invoke(() => calls++);
Assert.True(stopStartedInTime, "the dedicated stop thread did not start");
Assert.True(stopBlockedOnCallback, "stop never waited for the admitted callback");
Assert.True(stopJoined, "stop did not finish after the callback returned");
Assert.Null(stopError);
Assert.Equal(1, calls);
Assert.False(gate.IsAccepting);
}