public void TestMethod1() { string a = "10", b = "20"; Calculator cal = new Calculator(); string[] operatorSet = { "+", "-", "*", "/" }; string[] sum = { "30", "-10", "200", "0.5" }; for (int i = 1; i < 4; i++) { cal.getInput(a, b, operatorSet[i], null); Assert.AreEqual(sum[i], cal.calculate()); } }