	@Test
	public void freeShippingPromoTest() {

		
		//cart total 0
		Assert.assertEquals(0, shoppingCart.getCartItemTotal(), 0);
		
		promoService.applyShippingPromotions(shoppingCart);
		
		Assert.assertEquals(0, shoppingCart.getShippingTotal(), 0);
		
		//cart total 74.99
		shoppingCart.setCartItemTotal(74.99);
		shoppingCart.setShippingTotal(4.99);
		
		promoService.applyShippingPromotions(shoppingCart);
		
		Assert.assertEquals(4.99, shoppingCart.getShippingTotal(), 0);
		
		//cart total 75
		shoppingCart.setCartItemTotal(75);
		shoppingCart.setShippingTotal(4.99);
		
		promoService.applyShippingPromotions(shoppingCart);
		
		Assert.assertEquals(0, shoppingCart.getShippingTotal(), 0);
		
					
	}