@Test
public void onShoppingCartQuantityUpdated_doesNothing_whenItemIsNotTheSameAsCurrentOne() {

    ShoppingCartItem otherItem = mock(ShoppingCartItem.class);
    ShoppingCartQuantityChangeEvent updateEvent =
            new ShoppingCartQuantityChangeEvent(otherItem, SOME_QUANTITY);
    presenter.onShoppingCartQuantityChanged(updateEvent);
    verify(view, never()).updateQuantity(anyInt());
}