public void Sign_DoubleNegative_ReturnDouble()
{
// arrange
var sp = new ScalarPrimitives <double, double>();
// action
var result = sp.Sign(-3.0);
// assert
Assert.AreEqual(-1.0, result);
}
public void Sign_IntNegative_ReturnInt()
{
// arrange
var sp = new ScalarPrimitives <int, int>();
// action
var result = sp.Sign(-3);
// assert
Assert.AreEqual(-1, result);
}