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Limit number of events stored in TestEventListener #22263

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merged 7 commits into from
Jul 5, 2021
Merged

Limit number of events stored in TestEventListener #22263

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c71e82f
Limit number of events stored in TestEventListener
Mohit-Chakraborty Jun 29, 2021
b20d35c
Throw exception when events are dropped
Mohit-Chakraborty Jun 29, 2021
82ccd74
Dispose the event listener in AzureIdentityEventSourceTests
Mohit-Chakraborty Jun 29, 2021
7f45e95
Add comments on TestEventListener ctor
Mohit-Chakraborty Jun 30, 2021
ac9998b
Merge remote-tracking branch 'origin/main' into mohitc/LimitTestEvent…
Mohit-Chakraborty Jul 2, 2021
c1faf7a
Dispose TestEventListener in a timely manner
Mohit-Chakraborty Jul 4, 2021
4fc38e5
Use method local TestEventListener in Search
Mohit-Chakraborty Jul 5, 2021
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15 changes: 15 additions & 0 deletions sdk/core/Azure.Core.TestFramework/src/TestEventListener.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,8 @@ public class TestEventListener : EventListener
{
private volatile bool _disposed;
private readonly ConcurrentQueue<EventWrittenEventArgs> _events = new ConcurrentQueue<EventWrittenEventArgs>();
private uint _maxEventCount;
private const uint DefaultMaxEventCount = 100;
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public IEnumerable<EventWrittenEventArgs> EventData => _events;

Expand All @@ -27,12 +29,25 @@ protected override void OnEventWritten(EventWrittenEventArgs eventData)

if (!_disposed)
{
if (_events.Count >= _maxEventCount)
{
_events.TryDequeue(out _);
}

// Make sure we can format the event
EventSourceEventFormatting.Format(eventData);
_events.Enqueue(eventData);
}
}

public TestEventListener() : this(DefaultMaxEventCount)
{ }

public TestEventListener(uint maxEventCount)
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{
_maxEventCount = maxEventCount;
}

public EventWrittenEventArgs SingleEventById(int id, Func<EventWrittenEventArgs, bool> filter = null)
{
return EventsById(id).Single(filter ?? (_ => true));
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