~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2007 Canonical Ltd

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program 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 General Public License for more details.

#

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

# along with this program; if not, write to the Free Software

# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

"""Tests for repository statistic-gathering apis."""

from bzrlib.tests.repository_implementations.test_repository import TestCaseWithRepository

class TestGatherStats(TestCaseWithRepository):

    def check_stats_has_size(self, stats):

        """Check that stats has a reasonable size entry."""

        # actual disk size varies from implementation to implementation,

        # but they should all provide it on their native transport.

        self.assertTrue('size' in stats)

        # and it should be a number

        self.assertIsInstance(stats['size'], (int, long))

        # and now remove it to make other assertions work without variation.

        del stats['size']

    def test_gather_stats(self):

        """First smoke test covering the refactoring into the Repository api."""

        tree = self.make_branch_and_memory_tree('.')

        tree.lock_write()

        tree.add('')

        # three commits: one to be included by reference, one to be 

        # requested, and one to be in the repository but [mostly] ignored.

        rev1 = tree.commit('first post', committer='person 1',

            timestamp=1170491381, timezone=0)

        rev2 = tree.commit('second post', committer='person 2',

            timestamp=1171491381, timezone=0)

        rev3 = tree.commit('third post', committer='person 3',

            timestamp=1172491381, timezone=0)

        tree.unlock()

        # now, in the same repository, asking for stats with/without the 

        # committers flag generates the same date information.

        stats = tree.branch.repository.gather_stats(rev2, committers=False)

        self.check_stats_has_size(stats)

        self.assertEqual({

            'firstrev': (1170491381.0, 0),

            'latestrev': (1171491381.0, 0),

            'revisions': 3,

            },

            stats)

        stats = tree.branch.repository.gather_stats(rev2, committers=True)

        self.check_stats_has_size(stats)

        self.assertEqual({

            'committers': 2,

            'firstrev': (1170491381.0, 0),

            'latestrev': (1171491381.0, 0),

            'revisions': 3,

            },

            stats)

    def test_gather_stats_norevid_gets_size(self):

        """Without a revid, repository size is still gathered."""

        tree = self.make_branch_and_memory_tree('.')

        tree.lock_write()

        tree.add('')

        # put something in the repository, because zero-size is borink.

        rev1 = tree.commit('first post')

        tree.unlock()

        # now ask for global repository stats.

        stats = tree.branch.repository.gather_stats()

        self.check_stats_has_size(stats)

        self.assertEqual({

            'revisions': 1

            },

            stats)

    def test_gather_stats_empty_repo(self):

        """An empty repository still has size and revisions."""

        tree = self.make_branch_and_memory_tree('.')

        # now ask for global repository stats.

        stats = tree.branch.repository.gather_stats()

        self.check_stats_has_size(stats)

        self.assertEqual({

            'revisions': 0

            },

            stats)