# copyright 2016 LOGILAB S.A. (Paris, FRANCE), all rights reserved.

# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr

#

# This file is part of CubicWeb.

#

# CubicWeb is free software: you can redistribute it and/or modify it under the

# terms of the GNU Lesser General Public License as published by the Free

# Software Foundation, either version 2.1 of the License, or (at your option)

# any later version.

#

# CubicWeb is distributed in the hope that it will be useful, but WITHOUT

# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more

# details.

#

# You should have received a copy of the GNU Lesser General Public License along

# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.

from unittest import TestCase

import os.path as osp

import pickle

from six import PY2

from logilab.common.shellutils import tempdir

from cubicweb import Binary

class BinaryTC(TestCase):

    def test_init(self):

        Binary()

        Binary(b'toto')

        Binary(bytearray(b'toto'))

        if PY2:

            Binary(buffer('toto'))  # noqa: F821

        else:

            Binary(memoryview(b'toto'))

        with self.assertRaises((AssertionError, TypeError)):

            # TypeError is raised by BytesIO if python runs with -O

            Binary(u'toto')

    def test_write(self):

        b = Binary()

        b.write(b'toto')

        b.write(bytearray(b'toto'))

        if PY2:

            b.write(buffer('toto'))  # noqa: F821

        else:

            b.write(memoryview(b'toto'))

        with self.assertRaises((AssertionError, TypeError)):

            # TypeError is raised by BytesIO if python runs with -O

            b.write(u'toto')

    def test_gzpickle_roundtrip(self):

        old = (u'foo', b'bar', 42, {})

        new = Binary.zpickle(old).unzpickle()

        self.assertEqual(old, new)

        self.assertIsNot(old, new)

    def test_from_file_to_file(self):

        with tempdir() as dpath:

            fpath = osp.join(dpath, 'binary.bin')

            with open(fpath, 'wb') as fobj:

                Binary(b'binaryblob').to_file(fobj)

            bobj = Binary.from_file(fpath)

            self.assertEqual(bobj.getvalue(), b'binaryblob')

    def test_pickleable(self):

        b = Binary(b'toto')

        bb = pickle.loads(pickle.dumps(b))

        self.assertEqual(b, bb)

if __name__ == '__main__':

    from unittest import main

    main()