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# Copyright (C) 2010, 2011 Sebastian Thiel (byronimo@gmail.com) and contributors
#
# This module is part of GitDB and is released under
# the New BSD License: http://www.opensource.org/licenses/bsd-license.php
from git.test.db.lib import TestDBBase, with_rw_directory
from git.db.py.loose import PureLooseObjectODB
from git.exc import BadObject
from git.util import bin_to_hex


class TestLooseDB(TestDBBase):

    needs_ro_repo = False

    @with_rw_directory
    def test_basics(self, path):
        ldb = PureLooseObjectODB(path)

        # write data
        self._assert_object_writing(ldb)
        self._assert_object_writing_async(ldb)

        # verify sha iteration and size
        shas = list(ldb.sha_iter())
        assert shas and len(shas[0]) == 20

        assert len(shas) == ldb.size()

        # verify find short object
        long_sha = bin_to_hex(shas[-1])
        for short_sha in (long_sha[:20], long_sha[:5]):
            assert bin_to_hex(ldb.partial_to_complete_sha_hex(short_sha)) == long_sha
        # END for each sha

        self.failUnlessRaises(BadObject, ldb.partial_to_complete_sha_hex, '0000')
        # raises if no object could be foudn