public void CeilTest()
{
//check Ceil(double a)
Assert.AreEqual(6, OwnMath.ceil(5.3));
Assert.AreEqual(-4, OwnMath.ceil(-4.4));
Assert.AreEqual(1, OwnMath.ceil(0.25));
//check CeilInt(double a)
Assert.AreEqual(6, OwnMath.ceilInt(5.3));
Assert.AreEqual(-4, OwnMath.ceilInt(-4.4));
Assert.AreEqual(1, OwnMath.ceilInt(0.25));
}