def test_fetch_service(self, get_charm):
c = CharmCache('mytestcharm')
charm = c.fetch('myservice')
self.assertEqual(charm, get_charm.return_value)
get_charm.assert_called_once_with('myservice')
get_charm.reset_mock()
charm2 = c['myservice']
self.assertEqual(charm, charm2)
self.assertFalse(get_charm.called)
def test_fetch_testcharm(self, get_charm):
c = CharmCache('mytestcharm')
charm = c.fetch('myservice', 'mytestcharm')
self.assertEqual(charm, get_charm.return_value)
get_charm.assert_called_once_with(os.getcwd())
