avocado-framework/avocado

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selftests/unit/utils/test_path.py

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import os
import unittest.mock

from avocado.utils import path


class Path(unittest.TestCase):

    def test_check_readable_exists(self):
        with unittest.mock.patch('avocado.utils.path.os.path.exists',
                                 return_value=False) as mocked_exists:
            with self.assertRaises(OSError) as cm:
                path.check_readable(os.devnull)
            self.assertEqual('File "%s" does not exist' % os.devnull,
                             cm.exception.args[0])
            mocked_exists.assert_called_with(os.devnull)

    def test_check_readable_access(self):
        with unittest.mock.patch('avocado.utils.path.os.access',
                                 return_value=False) as mocked_access:
            with self.assertRaises(OSError) as cm:
                path.check_readable(os.devnull)
            self.assertEqual('File "%s" can not be read' % os.devnull,
                             cm.exception.args[0])
            mocked_access.assert_called_with(os.devnull, os.R_OK)


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