# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

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

from bzrlib.tests.per_repository import TestCaseWithRepository


class TestGatherStats(TestCaseWithRepository):

    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)
        # this test explicitly only checks for certain keys
        # in the dictionary, as implementations are allowed to
        # provide arbitrary data in other keys.
        self.assertEqual(stats['firstrev'], (1170491381.0, 0))
        self.assertEqual(stats['latestrev'], (1171491381.0, 0))
        self.assertEqual(stats['revisions'], 3)
        stats = tree.branch.repository.gather_stats(rev2, committers=True)
        self.assertEquals(2, stats["committers"])
        self.assertEquals((1170491381.0, 0), stats["firstrev"])
        self.assertEquals((1171491381.0, 0), stats["latestrev"])
        self.assertEquals(3, stats["revisions"])

    def test_gather_stats_empty_repo(self):
        """An empty repository still has revisions."""
        tree = self.make_branch_and_memory_tree('.')
        # now ask for global repository stats.
        stats = tree.branch.repository.gather_stats()
        self.assertEquals(0, stats['revisions'])
        self.assertFalse("committers" in stats)
        self.assertFalse("firstrev" in stats)
        self.assertFalse("latestrev" in stats)
