public void ListStackTest()
{
Assert.AreEqual(calculator.StackCalc(listStack, "10 5 +"), 15);
Assert.AreEqual(calculator.StackCalc(arrayStack, "10 5 -"), 5);
Assert.AreEqual(calculator.StackCalc(arrayStack, "10 5 /"), 2);
Assert.AreEqual(calculator.StackCalc(arrayStack, "10 5 *"), 50);
Assert.AreEqual(calculator.StackCalc(arrayStack, "10 5 / 3 3 + +"), 8);
}