def test_units1(self):
inv = Inventory()
self.assertEqual(inv.units(), Inventory.from_string(''))
inv = Inventory.from_string('40.50 JPY, 40.51 USD {1.01 CAD}, 40.52 CAD')
self.assertEqual(inv.units(),
Inventory.from_string('40.50 JPY, 40.51 USD, 40.52 CAD'))
# Check that the same units coalesce.
inv = Inventory.from_string('2 HOOL {400 USD}, 3 HOOL {410 USD}')
self.assertEqual(inv.units(), Inventory.from_string('5 HOOL'))
inv = Inventory.from_string('2 HOOL {400 USD}, -3 HOOL {410 USD}')
self.assertEqual(inv.units(), Inventory.from_string('-1 HOOL'))
def test_units(self):
inv = Inventory(self.POSITIONS_ALL_KINDS +
[position.from_string('50.00 CAD')])
inv_cost = inv.units()
self.assertEqual(Inventory.from_string('121.50 USD, 50.00 CAD'), inv_cost)
