public void WindowsPerformanceLiasonTest_VerifyIncrementAverageTimer32()
{
WindowsPerformanceLiason underTest = new WindowsPerformanceLiason();
underTest.Increment(CounterTestUtilities.TestCategoryName, CounterTestUtilities.TestAverageTimer32Name);
underTest.Increment(CounterTestUtilities.TestCategoryName, CounterTestUtilities.TestAverageTimer32Name);
float finalValue =
underTest.NextValue(CounterTestUtilities.TestCategoryName, CounterTestUtilities.TestAverageTimer32Name);
//// ((N1 - N0) / F) / (B1 - B0)
//// how fast is our clock
float freq = Stopwatch.Frequency;
float numerator = ((float)(2 - 1)) / freq;
float denominator = 2 - 1;
Assert.AreEqual(numerator / denominator, finalValue, .002, "Freq: " + freq);
}
public void WindowsPerformanceLiasonTest_VerifyDecrementAverageTimer32()
{
WindowsPerformanceLiason underTest = new WindowsPerformanceLiason();
underTest.Increment(CounterTestUtilities.TestCategoryName, CounterTestUtilities.TestAverageTimer32Name);
underTest.Increment(CounterTestUtilities.TestCategoryName, CounterTestUtilities.TestAverageTimer32Name);
underTest.Decrement(CounterTestUtilities.TestCategoryName, CounterTestUtilities.TestAverageTimer32Name);
float finalValue =
underTest.NextValue(CounterTestUtilities.TestCategoryName, CounterTestUtilities.TestAverageTimer32Name);
//// ((N1 - N0) / F) / (B1 - B0)
//// how fast is our clock
float freq = Stopwatch.Frequency;
//// ((N1 - N0) / F)
float numerator = (1 - 2) / freq;
float denominator = 3 - 2;
Assert.AreEqual(numerator / denominator, finalValue, .002, "Freq: " + freq);
//// the final value is actually 0 here and our calculatd value is very small, almost -0
}
public void WindowsPerformanceLiasonTest_VerifyIncrementSimple64()
{
WindowsPerformanceLiason underTest = new WindowsPerformanceLiason();
float initialValue =
underTest.NextValue(CounterTestUtilities.TestCategoryName, CounterTestUtilities.TestCounterNumberOfItems64Name);
underTest.Increment(CounterTestUtilities.TestCategoryName, CounterTestUtilities.TestCounterNumberOfItems64Name);
float finalValue =
underTest.NextValue(CounterTestUtilities.TestCategoryName, CounterTestUtilities.TestCounterNumberOfItems64Name);
Assert.AreEqual(initialValue + 1, finalValue);
}
public void PerformanceCounterExplorerTest_TimeIncrementVsIncrementBy()
{
WindowsPerformanceLiason updatableCounters = new WindowsPerformanceLiason();
Stopwatch incrementWatcher = new Stopwatch();
incrementWatcher.Start();
for (int i = 0; i < 100000; i++)
{
updatableCounters.Increment(CounterTestUtilities.TestCategoryName, CounterTestUtilities.TestCounterNumberOfItems64Name);
}
incrementWatcher.Stop();
Stopwatch incrementByWatcher = new Stopwatch();
incrementByWatcher.Start();
for (int i = 0; i < 100000; i++)
{
updatableCounters.IncrementBy(CounterTestUtilities.TestCategoryName, CounterTestUtilities.TestCounterNumberOfItems64Name, 1);
}
incrementByWatcher.Stop();
Assert.AreEqual(incrementWatcher.ElapsedMilliseconds, incrementByWatcher.ElapsedMilliseconds, " expected time is the 'increment', actual is 'incrementBy'");
}
public void WindowsPerformanceLiasonBoundsTest_VerifyIncrementEmptyCounterCheck()
{
WindowsPerformanceLiason underTest = new WindowsPerformanceLiason();
underTest.Increment(CounterTestUtilities.TestCategoryName, string.Empty);
}
public void WindowsPerformanceLiasonBoundsTest_VerifyIncrementEmptyCategoryCheck()
{
WindowsPerformanceLiason underTest = new WindowsPerformanceLiason();
underTest.Increment(string.Empty, CounterTestUtilities.TestCounterNumberOfItems64Name);
}
