def test_add_and_remove_and_clear():
product = get_default_product()
supplier = get_default_supplier()
request = get_request_with_basket()
basket = request.basket
with pytest.raises(ValidationError):
basket_commands.handle_add(request, basket, product_id=product.pk, quantity=-3) # Ordering antimatter is not supported
# These will get merged into one line...
basket_commands.handle_add(request, basket, **{"product_id": product.pk, "quantity": 1, "supplier_id": supplier.pk})
basket_commands.handle_add(request, basket, **{"product_id": product.pk, "quantity": 2})
# ... so there will be 3 products but one line
assert basket.product_count == 3
lines = basket.get_lines()
assert len(lines) == 1
# ... and deleting that line will clear the basket...
basket_commands.handle_del(request, basket, lines[0].line_id)
assert basket.product_count == 0
# ... and adding another product will create a new line...
basket_commands.handle_add(request, basket, product_id=product.pk, quantity=1)
assert basket.product_count == 1
# ... that can be cleared.
basket_commands.handle_clear(request, basket)
assert basket.product_count == 0
def destroy(self, request, *args, **kwargs):
result = handle_del(self.request, self.request.basket, kwargs['line_id'])
if not result['ok']:
raise ValidationError({
'code': 'line_not_found',
'error': _('Couldn\'t delete the line')
})
self.request.basket.save()
new_basket = self.get_basket()
return Response(APIBasketSerializer(new_basket, context={'request': self.request}).data)