public void TestProduct3()
{
int product = StatisticalMethods.Product(-42);
Assert.AreEqual(-42, product);
}
public void TestProduct4()
{
int product = StatisticalMethods.Product(7, 6, 1, 9);
Assert.AreEqual(378, product);
}
public void TestProduct2()
{
int product = StatisticalMethods.Product();
Assert.Fail();
}