assert api is chset.get_node('docs/api')

        index = api.get_node('index.rst')

        assert index is chset.get_node('docs/api/index.rst')

        assert index is chset.get_node('docs') \

                             .get_node('api') \

                             .get_node('index.rst')

    def test_branch_and_tags(self):

        # Those tests seem to show wrong results:

        # in Git, only heads have a branch - most changesets don't

        rev0 = self.repo.revisions[0]

        chset0 = self.repo.get_changeset(rev0)

        assert chset0.branch is None # should be 'master'?

        assert chset0.branches == [] # should be 'master'?

        assert chset0.tags == []

        rev10 = self.repo.revisions[10]

        chset10 = self.repo.get_changeset(rev10)

        assert chset10.branch is None # should be 'master'?

        assert chset10.branches == [] # should be 'master'?

        assert chset10.tags == []

        rev44 = self.repo.revisions[44]

        chset44 = self.repo.get_changeset(rev44)

        assert chset44.branch is None # should be 'web-branch'?

        assert chset44.branches == [] # should be 'web-branch'?

        tip = self.repo.get_changeset('tip')

        assert 'tip' not in tip.tags # it should be?

        assert not tip.tags # how it is!

    def _test_slices(self, limit, offset):

        count = self.repo.count()

        changesets = self.repo.get_changesets(limit=limit, offset=offset)

        idx = 0

        for changeset in changesets:

            rev = offset + idx

            idx += 1

            rev_id = self.repo.revisions[rev]

            if idx > limit:

                pytest.fail("Exceeded limit already (getting revision %s, "

                    "there are %s total revisions, offset=%s, limit=%s)"

                    % (rev_id, count, offset, limit))

            assert changeset == self.repo.get_changeset(rev_id)

        result = list(self.repo.get_changesets(limit=limit, offset=offset))

        start = offset

        end = limit and offset + limit or None

        sliced = list(self.repo[start:end])

            msg="Comparison failed for limit=%s, offset=%s"

            "(get_changeset returned: %s and sliced: %s"

            % (limit, offset, result, sliced))

    def _test_file_size(self, revision, path, size):

        node = self.repo.get_changeset(revision).get_node(path)

        assert node.is_file()

        assert node.size == size

    def test_file_size(self):

        to_check = (

            ('c1214f7e79e02fc37156ff215cd71275450cffc3',

                'vcs/backends/BaseRepository.py', 502),

            ('d7e0d30fbcae12c90680eb095a4f5f02505ce501',

                'vcs/backends/hg.py', 854),

            ('6e125e7c890379446e98980d8ed60fba87d0f6d1',

                'setup.py', 1068),

            ('d955cd312c17b02143c04fa1099a352b04368118',

                'vcs/backends/base.py', 2921),

            ('ca1eb7957a54bce53b12d1a51b13452f95bc7c7e',

                'vcs/backends/base.py', 3936),

            ('f50f42baeed5af6518ef4b0cb2f1423f3851a941',

                'vcs/backends/base.py', 6189),

        )

        for revision, path, size in to_check:

            self._test_file_size(revision, path, size)

    def _test_dir_size(self, revision, path, size):

        node = self.repo.get_changeset(revision).get_node(path)

        assert node.size == size

    def test_dir_size(self):

        to_check = (

            ('5f2c6ee195929b0be80749243c18121c9864a3b3', '/', 674076),

            ('7ab37bc680b4aa72c34d07b230c866c28e9fc204', '/', 674049),

            ('6892503fb8f2a552cef5f4d4cc2cdbd13ae1cd2f', '/', 671830),

        )

        for revision, path, size in to_check:

            self._test_dir_size(revision, path, size)

    def test_repo_size(self):

        assert self.repo.size == 674076

    def test_file_history(self):

        # we can only check if those revisions are present in the history

        # as we cannot update this test every time file is changed

        files = {

            'setup.py': [