public void TestThreshold()
{
Threshold <int> threshold = new Threshold <int>(3, 5);
Assert.AreEqual(true, threshold.Contain(4));
Assert.AreEqual(false, threshold.Contain(2));
Assert.AreEqual(false, threshold.Contain(6));
Assert.AreEqual(true, 6 > threshold);
Assert.AreEqual(true, 2 < threshold);
}