sprout42 / StarStruct

        """Test an empty Message."""

        val = Message('test', [])

        self.assertEqual(val._tuple._fields, ())  # pylint: disable=protected-access

    def test_pack_little_endian(self):

        """Test pack the test formats."""

        test_msg = Message('test', self.teststruct, Mode.Little)

        for idx in range(len(self.testvalues)):

            with self.subTest(idx):  # pylint: disable=no-member

                packed_msg = test_msg.pack(**self.testvalues[idx])

                self.assertEqual(self.testbytes['little'][idx], packed_msg)

    def test_unpack_little_endian(self):

        """Test unpack the test formats."""

        test_msg = Message('test', self.teststruct, Mode.Little)

        for idx in range(len(self.testvalues)):

    def test_init_invalid_name(self):

        """Test invalid Message names."""

        for name in [None, '', 1, dict(), list()]:

            with self.subTest(name):  # pylint: disable=no-member

                with self.assertRaises(TypeError) as cm:

                    Message(name, self.teststruct)

                self.assertEqual(str(cm.exception), 'invalid name: {}'.format(name))

    def test_init_invalid_mode(self):

        """Test invalid Message modes."""

        for mode in ['=', 'stuff', 0, -1, 1]:

            with self.subTest(mode):  # pylint: disable=no-member

                with self.assertRaises(TypeError) as cm:

                    Message('test', self.teststruct, mode)