public void ChecksForNullSampleList()
{
var stable = new Stable();
Assert.DoesNotThrow(() => stable.AddSample(123), "Adding Sample threw an error");
Assert.IsNotNull(stable.Samples, "Samples is still null");
}
public void DefaultThreshold()
{
var threshold = 0.2;
var stable = new Stable();
Assert.AreEqual(threshold, stable.Threshold, "Threshold default not set to " + threshold);
}
public void DefaultSampleSize()
{
var sampleSize = 3;
var stable = new Stable();
Assert.AreEqual(sampleSize, stable.SampleSize, "Sample Size default not set to " + sampleSize);
}
public void DefaultIsStable()
{
var isStable = false;
var stable = new Stable();
Assert.AreEqual(isStable, stable.IsStable, "IsStable not defaulting to " + isStable);
}
public void CanSetThreshold()
{
var threshold = 0.2;
var stable = new Stable(new Stable { Threshold = threshold });
Assert.AreEqual(threshold, stable.Threshold, "Threshold not set.");
}
public void StableAverageUpdated()
{
var stable = new Stable();
stable.AddSample(123);
Assert.AreNotEqual(0, stable.StableAverage, "The Stable Average was not set.");
}
public void SampleAddedToNew()
{
var sample = 45.2;
var stable = new Stable();
stable.AddSample(sample);
Assert.IsTrue(stable.Samples.Count > 0, "Sample not added to List.");
Assert.AreEqual(sample, stable.Samples[0], "Sample not added to empty list");
}
public void CanSetSampleSize()
{
//Arrange
var sampleSize = 2;
//Act
var stable = new Stable(new Stable { SampleSize = sampleSize });
//Assert
Assert.AreEqual(sampleSize, stable.SampleSize, "Sample Size not set in constructor.");
}
public void SamplesDoesNotGetBiggerThanSampleSize()
{
var sampleSize = 2;
var stable = new Stable(new Stable { SampleSize = sampleSize });
stable.AddSample(23);
stable.AddSample(65);
stable.AddSample(123);
Assert.AreEqual(sampleSize, stable.Samples.Count, "Samples count has exceeded sample size");
}
public void StableAverageIsCorrectWith3Values()
{
var average = 5;
var diff = 2;
var stable = new Stable();
stable.AddSample(average + diff);
stable.AddSample(average - diff);
stable.AddSample(average);
Assert.AreEqual(average, stable.StableAverage, "The Stable Average is not computing correctly with 3 values");
}
public void WillBecomeStableAndThenUnstableWithAnotherValue()
{
var average = 5;
var diff = .1;
var stable = new Stable();
stable.AddSample(average + diff);
stable.AddSample(average - diff);
stable.AddSample(average);
Assert.IsTrue(stable.IsStable, "Not marked as stable and should have.");
stable.AddSample(average * 40);
Assert.IsFalse(stable.IsStable, "Marked as stable and should not have.");
}
public Stable(Stable stable)
{
SampleSize = stable.SampleSize;
Threshold = stable.Threshold;
}
public void WillMarkAsNotStableWithDefaultThreshold()
{
var average = 5;
var diff = 2;
var stable = new Stable();
stable.AddSample(average + diff);
stable.AddSample(average - diff);
stable.AddSample(average);
Assert.IsFalse(stable.IsStable, "Marked as stable and should not have.");
}
public void WillMarkAsStableWithDefaultThreshold()
{
var average = 5;
var diff = .1;
var stable = new Stable();
stable.AddSample(average + diff);
stable.AddSample(average - diff);
stable.AddSample(average);
Assert.IsTrue(stable.IsStable, "Not marked as stable and should have.");
}