def test_register_existing_user():
original_path = os.path.exists
os.path.exists = mock.Mock(original_path)
os.path.exists.return_value = True
with pytest.raises(application_control.userNameError):
application_control.register("username", "password")
os.path.exists = original_path
def test_register():
original_user = user_control.User
user_control.User = mock.Mock()
mocked_user_ob = mock.Mock()
user_control.User.return_value = mocked_user_ob
original_add_user = user_control.add_user
user_control.add_user = mock.Mock()
original_path = os.path.exists
os.path.exists = mock.Mock(original_path)
os.path.exists.return_value = False
ob = application_control.register("username", "password")
user_control.User.assert_called_with("username")
user_control.add_user.assert_called_with("username", "password")
assert ob == mocked_user_ob
user_control.add_user = original_add_user
user_control.User = original_user
os.path.exists = original_path