//method, scenario and expected result
public void Multiply_3Times3_ProductIsCorrect()
{
//Act
var result = uut.Multiply(3, 3);
//Assert
Assert.That(result, Is.EqualTo(9));
}
public void Multiply_Test()
{
var calculator = new Calculator1();
Assert.AreEqual(2.25, calculator.Multiply(1.5, 1.5));
Assert.AreEqual(25, calculator.Multiply(5, 5));
Assert.AreEqual(-100, calculator.Multiply(10, -10));
Assert.AreEqual(0, calculator.Multiply(0, 1));
}