public void RoundTest()
{
//check Round(double a, int decimalPlace)
Assert.AreEqual(6.4, OwnMath.round(6.42, 1));
Assert.AreEqual(6.5, OwnMath.round(6.46, 1));
Assert.AreEqual(-1.5, OwnMath.round(-1.53, 1));
Assert.AreEqual(-1.6, OwnMath.round(-1.58, 1));
Assert.AreEqual(6, OwnMath.round(6.2, 0));
//check Round(double a)
Assert.AreEqual(6, OwnMath.round(6.4));
Assert.AreEqual(7, OwnMath.round(6.6));
}