~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2005 by 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

import os

from cStringIO import StringIO

from bzrlib.selftest import BzrTestBase, TestCaseInTempDir

from bzrlib.log import LogFormatter, show_log, LongLogFormatter

from bzrlib.branch import Branch

from bzrlib.errors import InvalidRevisionNumber

class _LogEntry(object):

    # should probably move into bzrlib.log?

    pass

class LogCatcher(LogFormatter):

    """Pull log messages into list rather than displaying them.

    For ease of testing we save log messages here rather than actually

    formatting them, so that we can precisely check the result without

    being too dependent on the exact formatting.

    We should also test the LogFormatter.

    """

    def __init__(self):

        super(LogCatcher, self).__init__(to_file=None)

        self.logs = []

    def show(self, revno, rev, delta):

        le = _LogEntry()

        le.revno = revno

        le.rev = rev

        le.delta = delta

        self.logs.append(le)

class SimpleLogTest(TestCaseInTempDir):

    def checkDelta(self, delta, **kw):

        """Check the filenames touched by a delta are as expected."""

        for n in 'added', 'removed', 'renamed', 'modified', 'unchanged':

            expected = kw.get(n, [])

            # tests are written with unix paths; fix them up for windows

            if os.sep != '/':

                expected = [x.replace('/', os.sep) for x in expected]

            # strip out only the path components

            got = [x[0] for x in getattr(delta, n)]

            self.assertEquals(expected, got)

    def test_cur_revno(self):

        b = Branch.initialize('.')

        lf = LogCatcher()

        b.commit('empty commit')

        show_log(b, lf, verbose=True, start_revision=1, end_revision=1)

        self.assertRaises(InvalidRevisionNumber, show_log, b, lf,

                          start_revision=2, end_revision=1) 

        self.assertRaises(InvalidRevisionNumber, show_log, b, lf,

                          start_revision=1, end_revision=2) 

        self.assertRaises(InvalidRevisionNumber, show_log, b, lf,

                          start_revision=0, end_revision=2) 

        self.assertRaises(InvalidRevisionNumber, show_log, b, lf,

                          start_revision=1, end_revision=0) 

        self.assertRaises(InvalidRevisionNumber, show_log, b, lf,

                          start_revision=-1, end_revision=1) 

        self.assertRaises(InvalidRevisionNumber, show_log, b, lf,

                          start_revision=1, end_revision=-1) 

    def test_simple_log(self):

        eq = self.assertEquals

        b = Branch.initialize('.')

        lf = LogCatcher()

        show_log(b, lf)

        # no entries yet

        eq(lf.logs, [])

        b.commit('empty commit')

        lf = LogCatcher()

        show_log(b, lf, verbose=True)

        eq(len(lf.logs), 1)

        eq(lf.logs[0].revno, 1)

        eq(lf.logs[0].rev.message, 'empty commit')

        d = lf.logs[0].delta

        self.log('log delta: %r' % d)

        self.checkDelta(d)

        self.build_tree(['hello'])

        b.add('hello')

        b.commit('add one file')

        lf = StringIO()

        # log using regular thing

        show_log(b, LongLogFormatter(lf))

        lf.seek(0)

        for l in lf.readlines():

            self.log(l)

        # get log as data structure

        lf = LogCatcher()

        show_log(b, lf, verbose=True)

        eq(len(lf.logs), 2)

        self.log('log entries:')

        for logentry in lf.logs:

            self.log('%4d %s' % (logentry.revno, logentry.rev.message))

        # first one is most recent

        logentry = lf.logs[0]

        eq(logentry.revno, 2)

        eq(logentry.rev.message, 'add one file')

        d = logentry.delta

        self.log('log 2 delta: %r' % d)

        # self.checkDelta(d, added=['hello'])