async def test_load_name_given(self):
self.assertEqual(add.imp, OperationImplementation.load("add"))
self.assertEqual(mult.imp, OperationImplementation.load("mult"))
async def test_load_failure(self):
with self.assertRaises(FailedToLoadOperationImplementation):
OperationImplementation.load("parse_line")
async def test_load(self):
loaded = OperationImplementation.load()
self.assertIn(add.imp, loaded)
self.assertIn(mult.imp, loaded)
self.assertNotIn(parse_line.op, loaded)
