~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2006-2010 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

from StringIO import StringIO

from bzrlib import (

    config,

    status as _mod_status,

    )

from bzrlib.revisionspec import RevisionSpec

from bzrlib.status import show_pending_merges, show_tree_status

from bzrlib.tests import TestCaseWithTransport

class TestStatus(TestCaseWithTransport):

    def test_pending_none(self):

        # Test whether show_pending_merges works in a tree with no commits

        tree = self.make_branch_and_tree('a')

        tree.commit('empty commit')

        tree2 = self.make_branch_and_tree('b')

        # set a left most parent that is not a present commit

        tree2.add_parent_tree_id('some-ghost', allow_leftmost_as_ghost=True)

        # do a merge

        tree2.merge_from_branch(tree.branch)

        output = StringIO()

        tree2.lock_read()

        try:

            show_pending_merges(tree2, output)

        finally:

            tree2.unlock()

        self.assertContainsRe(output.getvalue(), 'empty commit')

    def make_multiple_pending_tree(self):

        config.GlobalConfig().set_user_option('email', 'Joe Foo <joe@foo.com>')

        tree = self.make_branch_and_tree('a')

        tree.commit('commit 1', timestamp=1196796819, timezone=0)

        tree2 = tree.bzrdir.clone('b').open_workingtree()

        tree.commit('commit 2', timestamp=1196796819, timezone=0)

        tree2.commit('commit 2b', timestamp=1196796819, timezone=0)

        tree3 = tree2.bzrdir.clone('c').open_workingtree()

        tree2.commit('commit 3b', timestamp=1196796819, timezone=0)

        tree3.commit('commit 3c', timestamp=1196796819, timezone=0)

        tree.merge_from_branch(tree2.branch)

        tree.merge_from_branch(tree3.branch, force=True)

        return tree

    def test_multiple_pending(self):

        tree = self.make_multiple_pending_tree()

        output = StringIO()

        tree.lock_read()

        self.addCleanup(tree.unlock)

        show_pending_merges(tree, output)

        # 2b doesn't appear because it's an ancestor of 3b

        self.assertEqualDiff(

            'pending merge tips: (use -v to see all merge revisions)\n'

            '  Joe Foo 2007-12-04 commit 3b\n'

            '  Joe Foo 2007-12-04 commit 3c\n',

            output.getvalue())

    def test_multiple_pending_verbose(self):

        tree = self.make_multiple_pending_tree()

        output = StringIO()

        tree.lock_read()

        self.addCleanup(tree.unlock)

        show_pending_merges(tree, output, verbose=True)

        # Even though 2b is in the ancestry of 3c, it should only be displayed

        # under the first merge parent.

        self.assertEqualDiff('pending merges:\n'

                             '  Joe Foo 2007-12-04 commit 3b\n'

                             '    Joe Foo 2007-12-04 commit 2b\n'

                             '  Joe Foo 2007-12-04 commit 3c\n',

                             output.getvalue())

    def test_with_pending_ghost(self):

        """Test when a pending merge is itself a ghost"""

        tree = self.make_branch_and_tree('a')

        tree.commit('first')

        tree.add_parent_tree_id('a-ghost-revision')

        tree.lock_read()

        self.addCleanup(tree.unlock)

        output = StringIO()

        show_pending_merges(tree, output)

        self.assertEqualDiff(

            'pending merge tips: (use -v to see all merge revisions)\n'

            '  (ghost) a-ghost-revision\n',

            output.getvalue())

    def test_pending_with_ghosts(self):

        """Test when a pending merge's ancestry includes ghosts."""

        config.GlobalConfig().set_user_option('email', 'Joe Foo <joe@foo.com>')

        tree = self.make_branch_and_tree('a')

        tree.commit('empty commit')

        tree2 = tree.bzrdir.clone('b').open_workingtree()

        tree2.commit('a non-ghost', timestamp=1196796819, timezone=0)

        tree2.add_parent_tree_id('a-ghost-revision')

        tree2.commit('commit with ghost', timestamp=1196796819, timezone=0)

        tree2.commit('another non-ghost', timestamp=1196796819, timezone=0)

        tree.merge_from_branch(tree2.branch)

        tree.lock_read()

        self.addCleanup(tree.unlock)

        output = StringIO()

        show_pending_merges(tree, output, verbose=True)

        self.assertEqualDiff('pending merges:\n'

                             '  Joe Foo 2007-12-04 another non-ghost\n'

                             '    Joe Foo 2007-12-04 [merge] commit with ghost\n'

                             '    (ghost) a-ghost-revision\n'

                             '    Joe Foo 2007-12-04 a non-ghost\n',

                             output.getvalue())

    def tests_revision_to_revision(self):

        """doing a status between two revision trees should work."""

        tree = self.make_branch_and_tree('.')

        r1_id = tree.commit('one', allow_pointless=True)

        r2_id = tree.commit('two', allow_pointless=True)

        r2_tree = tree.branch.repository.revision_tree(r2_id)

        output = StringIO()

        show_tree_status(tree, to_file=output,

                     revision=[RevisionSpec.from_string("revid:%s" % r1_id),

                               RevisionSpec.from_string("revid:%s" % r2_id)])

        # return does not matter as long as it did not raise.

class TestHooks(TestCaseWithTransport):

    def test_constructor(self):

        """Check that creating a StatusHooks instance has the right defaults.

        """

        hooks = _mod_status.StatusHooks()

        self.assertTrue("post_status" in hooks, "post_status not in %s" % hooks)

        self.assertTrue("pre_status" in hooks, "pre_status not in %s" % hooks)

    def test_installed_hooks_are_StatusHooks(self):

        """The installed hooks object should be a StatusHooks.

        """

        # the installed hooks are saved in self._preserved_hooks.

        self.assertIsInstance(self._preserved_hooks[_mod_status][1],

            _mod_status.StatusHooks)

    def test_post_status_hook(self):

        """Ensure that post_status hook is invoked with the right args.

        """

        calls = []

        _mod_status.hooks.install_named_hook('post_status', calls.append, None)

        self.assertLength(0, calls)

        tree = self.make_branch_and_tree('.')

        r1_id = tree.commit('one', allow_pointless=True)

        r2_id = tree.commit('two', allow_pointless=True)

        r2_tree = tree.branch.repository.revision_tree(r2_id)

        output = StringIO()

        show_tree_status(tree, to_file=output,

            revision=[RevisionSpec.from_string("revid:%s" % r1_id),

                RevisionSpec.from_string("revid:%s" % r2_id)])

        self.assertLength(1, calls)

        params = calls[0]

        self.assertIsInstance(params, _mod_status.StatusHookParams)

        attrs = ['old_tree', 'new_tree', 'to_file', 'versioned',

            'show_ids', 'short', 'verbose', 'specific_files']

        for a in attrs:

            self.assertTrue(hasattr(params, a),

                'Attribute "%s" not found in StatusHookParam' % a)

    def test_pre_status_hook(self):

        """Ensure that pre_status hook is invoked with the right args.

        """

        calls = []

        _mod_status.hooks.install_named_hook('pre_status', calls.append, None)

        self.assertLength(0, calls)

        tree = self.make_branch_and_tree('.')

        r1_id = tree.commit('one', allow_pointless=True)

        r2_id = tree.commit('two', allow_pointless=True)

        r2_tree = tree.branch.repository.revision_tree(r2_id)

        output = StringIO()

        show_tree_status(tree, to_file=output,

            revision=[RevisionSpec.from_string("revid:%s" % r1_id),

                RevisionSpec.from_string("revid:%s" % r2_id)])

        self.assertLength(1, calls)

        params = calls[0]

        self.assertIsInstance(params, _mod_status.StatusHookParams)

        attrs = ['old_tree', 'new_tree', 'to_file', 'versioned',

            'show_ids', 'short', 'verbose', 'specific_files']

        for a in attrs:

            self.assertTrue(hasattr(params, a),

                'Attribute "%s" not found in StatusHookParam' % a)