def test_load_generate(self, genkey_mock, open_mock):
open_mock.side_effect = IOError()
kf = KeyFile('asdf.txt')
kf._KeyFile__load_key()
open_mock.assert_called_once_with('asdf.txt', 'rb')
genkey_mock.assert_called_once_with()
def test_load_key_exists(self, genkey_mock, validate_mock, open_mock):
kf = KeyFile('asdf.txt')
kf._KeyFile__load_key()
assert kf._KeyFile__key == b'x' * 32
open_mock.assert_called_once_with('asdf.txt', 'rb')
validate_mock.assert_called_once_with()
genkey_mock.assert_not_called()