public void MultiplyTest()
		{
			Calculator calc = new Calculator();
			int number1 = 5;
			int number2 = 7;
			int expected = 35;

			int actual = calc.Multiply(number1, number2);

			Assert.AreEqual(expected, actual);
		}
		public void DivideTest()
		{
			Calculator calc = new Calculator();
			int number1 = 5;
			int number2 = 7;
			int expected = number1 / number2;

			int actual = calc.Divide(number1, number2);

			Assert.AreEqual(expected, actual);
		}
		public void AddTest()
		{
			// arrange
			Calculator calc = new Calculator();
			int number1 = 5;
			int number2 = 7;
			int expected = 12;

			// act
			int actual = calc.Add(number1, number2);


			// assert
			Assert.AreEqual(expected, actual);
		}