/brz/remove-bazaar

# Copyright (C) 2009 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, see <http://www.gnu.org/licenses/>.

"""Test tracking of heads"""

from io import StringIO

from fastimport import (

    commands,

    parser,

    )

import testtools

from fastimport.reftracker import (

    RefTracker,

    )

# A sample input stream that only adds files to a branch

_SAMPLE_MAINLINE = \

    """blob

mark :1

data 9

Welcome!

commit refs/heads/master

mark :100

committer a <b@c> 1234798653 +0000

data 4

test

M 644 :1 doc/README.txt

blob

mark :2

data 17

Life

is

good ...

commit refs/heads/master

mark :101

committer a <b@c> 1234798653 +0000

data 8

test

ing

from :100

M 644 :2 NEWS

blob

mark :3

data 19

Welcome!

my friend

blob

mark :4

data 11

== Docs ==

commit refs/heads/master

mark :102

committer d <b@c> 1234798653 +0000

data 8

test

ing

from :101

M 644 :3 doc/README.txt

M 644 :4 doc/index.txt

"""

# A sample input stream that adds files to two branches

_SAMPLE_TWO_HEADS = \

    """blob

mark :1

data 9

Welcome!

commit refs/heads/master

mark :100

committer a <b@c> 1234798653 +0000

data 4

test

M 644 :1 doc/README.txt

blob

mark :2

data 17

Life

is

good ...

commit refs/heads/mybranch

mark :101

committer a <b@c> 1234798653 +0000

data 8

test

ing

from :100

M 644 :2 NEWS

blob

mark :3

data 19

Welcome!

my friend

blob

mark :4

data 11

== Docs ==

commit refs/heads/master

mark :102

committer d <b@c> 1234798653 +0000

data 8

test

ing

from :100

M 644 :3 doc/README.txt

M 644 :4 doc/index.txt

"""

# A sample input stream that adds files to two branches

_SAMPLE_TWO_BRANCHES_MERGED = \

    """blob

mark :1

data 9

Welcome!

commit refs/heads/master

mark :100

committer a <b@c> 1234798653 +0000

data 4

test

M 644 :1 doc/README.txt

blob

mark :2

data 17

Life

is

good ...

commit refs/heads/mybranch

mark :101

committer a <b@c> 1234798653 +0000

data 8

test

ing

from :100

M 644 :2 NEWS

blob

mark :3

data 19

Welcome!

my friend

blob

mark :4

data 11

== Docs ==

commit refs/heads/master

mark :102

committer d <b@c> 1234798653 +0000

data 8

test

ing

from :100

M 644 :3 doc/README.txt

M 644 :4 doc/index.txt

commit refs/heads/master

mark :103

committer d <b@c> 1234798653 +0000

data 8

test

ing

from :102

merge :101

D doc/index.txt

"""

# A sample input stream that contains a reset

_SAMPLE_RESET = \

    """blob

mark :1

data 9

Welcome!

commit refs/heads/master

mark :100

committer a <b@c> 1234798653 +0000

data 4

test

M 644 :1 doc/README.txt

reset refs/remotes/origin/master

from :100

"""

# A sample input stream that contains a reset and more commits

_SAMPLE_RESET_WITH_MORE_COMMITS = \

    """blob

mark :1

data 9

Welcome!

commit refs/heads/master

mark :100

committer a <b@c> 1234798653 +0000

data 4

test

M 644 :1 doc/README.txt

reset refs/remotes/origin/master

from :100

commit refs/remotes/origin/master

mark :101

committer d <b@c> 1234798653 +0000

data 8

test

ing

from :100

D doc/README.txt

"""

class TestHeadTracking(testtools.TestCase):

    def assertHeads(self, input, expected):

        s = StringIO(input)

        p = parser.ImportParser(s)

        reftracker = RefTracker()

        for cmd in p.iter_commands():

            if isinstance(cmd, commands.CommitCommand):

                reftracker.track_heads(cmd)

                # eat the file commands

                list(cmd.iter_files())

            elif isinstance(cmd, commands.ResetCommand):

                if cmd.from_ is not None:

                    reftracker.track_heads_for_ref(cmd.ref, cmd.from_)

        self.assertEqual(reftracker.heads, expected)

    def test_mainline(self):

        self.assertHeads(_SAMPLE_MAINLINE, {

            ':102': set(['refs/heads/master']),

            })

    def test_two_heads(self):

        self.assertHeads(_SAMPLE_TWO_HEADS, {

            ':101': set(['refs/heads/mybranch']),

            ':102': set(['refs/heads/master']),

            })

    def test_two_branches_merged(self):

        self.assertHeads(_SAMPLE_TWO_BRANCHES_MERGED, {

            ':103': set(['refs/heads/master']),

            })

    def test_reset(self):

        self.assertHeads(_SAMPLE_RESET, {

            ':100': set(['refs/heads/master', 'refs/remotes/origin/master']),

            })

    def test_reset_with_more_commits(self):

        self.assertHeads(_SAMPLE_RESET_WITH_MORE_COMMITS, {

            ':101': set(['refs/remotes/origin/master']),

            })