@Test
 public void testClearProductBag() throws Exception {
   ProductBagApi bags = new ProductBagApi(new MockContext());
   assertFalse(bags.clearProductBag(""));
   assertFalse(bags.clearProductBag(null));
   assertFalse(bags.clearProductBag("whatever"));
   bags.addProduct("some bag name", new Product.Builder("product name", "product sku", 1).build());
   assertEquals(1, bags.getBags().size());
   assertEquals(1, bags.getBags().get(0).getProducts().size());
   assertFalse(bags.clearProductBag("whatever"));
   assertTrue(bags.clearProductBag("sOme bag name"));
   assertEquals(1, bags.getBags().size());
   assertEquals(0, bags.getBags().get(0).getProducts().size());
 }