def test_pricing_updated_on_order_save(self):
"""
Test that if an order is saved, the related pricing is recalculated and
the order updated.
"""
order = OrderFactory(vat_status=VATStatus.uk, discount_value=0)
assert order.vat_cost > 0
order.vat_status = VATStatus.outside_eu
order.save()
order.refresh_from_db()
assert order.vat_cost == 0
def test_with_commit(self):
"""
Test that if udpate_order_pricing is called with commit = True,
the order model is changed and the db as well.
"""
order = OrderFactory(vat_status=VATStatus.uk)
orig_total_cost = order.total_cost
# change order and recalculate pricing without saving
order.vat_status = VATStatus.outside_eu
update_order_pricing(order, commit=True)
assert order.total_cost != orig_total_cost
# refresh and check that it changed
order.refresh_from_db()
assert order.total_cost != orig_total_cost
def test_without_committing(self):
"""
Test that if udpate_order_pricing is called without committing,
the order model is changed but not the db.
"""
order = OrderFactory(vat_status=VATStatus.UK)
orig_total_cost = order.total_cost
# change order and recalculate pricing without saving
order.vat_status = VATStatus.OUTSIDE_EU
update_order_pricing(order, commit=False)
assert order.total_cost != orig_total_cost
# refresh and check that it hasn't changed
order.refresh_from_db()
assert order.total_cost == orig_total_cost
