# Copyright (c) 2018, Arm Limited and affiliates.
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import six
import unittest
from mbed_os_tools.test.host_tests_registry import HostRegistry


class HostRegistryTestCase(unittest.TestCase):

    def setUp(self):
        self.HOSTREGISTRY = HostRegistry()

    def tearDown(self):
        pass

    def test_host_test_class_has_test_attr(self):
        """ Check if host test has 'result' class member
        """
        for i, ht_name in enumerate(self.HOSTREGISTRY.HOST_TESTS):
            ht = self.HOSTREGISTRY.HOST_TESTS[ht_name]
            if ht is not None:
                self.assertEqual(True, hasattr(ht, 'result'))

    def test_host_test_class_test_attr_callable(self):
        """ Check if host test has callable 'result' class member
        """
        for i, ht_name in enumerate(self.HOSTREGISTRY.HOST_TESTS):
            ht = self.HOSTREGISTRY.HOST_TESTS[ht_name]
            if ht:
                self.assertEqual(True, hasattr(ht, 'result') and callable(getattr(ht, 'result')))

    def test_host_test_class_test_attr_callable_args_num(self):
        """ Check if host test has callable setup(), result() and teardown() class member has 2 arguments
        """
        for i, ht_name in enumerate(self.HOSTREGISTRY.HOST_TESTS):
            ht = self.HOSTREGISTRY.HOST_TESTS[ht_name]
            if ht and hasattr(ht, 'setup') and callable(getattr(ht, 'setup')):
                self.assertEqual(1, six.get_function_code(ht.setup).co_argcount)
            if ht and hasattr(ht, 'result') and callable(getattr(ht, 'result')):
                self.assertEqual(1, six.get_function_code(ht.result).co_argcount)
            if ht and hasattr(ht, 'teardown') and callable(getattr(ht, 'teardown')):
                self.assertEqual(1, six.get_function_code(ht.teardown).co_argcount)


if __name__ == '__main__':
    unittest.main()