public async Task SetExtra_DataInserted_NoDataLoss()
{
// Run 20 times to avoid flacky tests scapping.
for (int amount = 0; amount < 20; amount++)
{
// Arrange
var hub = Substitute.For <IHub>();
var transaction = new SpanTracer(hub, null, null, SentryId.Empty, "");
var evt = new ManualResetEvent(false);
var ready = new ManualResetEvent(false);
int counter = 0;
// Act
var tasks = Enumerable.Range(1, 4).Select(_ => Task.Run(() =>
{
var threadId = Interlocked.Increment(ref counter);
if (threadId == 4)
{
ready.Set();
}
evt.WaitOne();
for (int i = 0; i < amount; i++)
{
transaction.SetExtra(Guid.NewGuid().ToString(), Guid.NewGuid());
}
})).ToList();
ready.WaitOne();
evt.Set();
await Task.WhenAll(tasks);
// Arrange
// 4 tasks testing X amount should be the same amount as Extras.
Assert.Equal(4 * amount, transaction.Extra.Count);
}
}
