def test_set_field(self):
price_field = AccessorField('Test', None, 'base_price', Decimal)
cost_field = AccessorField('Test', None, 'cost', Decimal)
operation = MultiplyOperation(self.store, price_field, [])
self.assertEqual(operation._field, price_field)
operation.set_field(cost_field)
self.assertEqual(operation._field, cost_field)
def test_multiply(self):
sellable = self.create_sellable()
sellable.cost = 100
sellable.base_price = 1
price_field = AccessorField('Test', None, 'base_price', Decimal)
cost_field = AccessorField('Test', None, 'cost', Decimal)
operation = MultiplyOperation(self.store, price_field, [cost_field])
operation.combo.select(cost_field)
operation.entry.set_text('3')
self.assertEqual(price_field.get_new_value(sellable), 1)
operation.apply_operation(sellable)
self.assertEqual(price_field.get_new_value(sellable), 300)
# An invalid value should not change the object
operation.entry.set_text('foo')
operation.apply_operation(sellable)
self.assertEqual(price_field.get_new_value(sellable), 300)