@Test
	public void testSequentialComputation(){
		
		calculator.pushOperand(4.0);
		calculator.pushOperand(7.0);
		calculator.pushPlusOperator();
		calculator.evaluateStack();
		
		calculator.pushOperand(3.0);
		calculator.pushTimesOperator();
		calculator.evaluateStack();
		
		assertEquals(33.0, calculator.popOperand(), 0);
		
	}