public void TestTryEnterPolling()
{
DateTime startTime = DateTime.Now;
// create new profiler session
var profilerSession = new ProfilerSession();
// enter the polling block
Assert.True(profilerSession.TryEnterPolling());
Assert.True(profilerSession.IsPolling);
// verify we can't enter again
Assert.False(profilerSession.TryEnterPolling());
// set polling to false to exit polling block
profilerSession.IsPolling = false;
bool outsideDelay = DateTime.Now.Subtract(startTime) >= profilerSession.PollingDelay;
// verify we can only enter again if we're outside polling delay interval
Assert.Equal(profilerSession.TryEnterPolling(), outsideDelay);
// reset IsPolling in case the delay has elasped on slow machine or while debugging
profilerSession.IsPolling = false;
// wait for the polling delay to elapse
Thread.Sleep(profilerSession.PollingDelay);
// verify we can enter the polling block again
Assert.True(profilerSession.TryEnterPolling());
}
