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# Copyright (C) 2007 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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"""Tags stored within a branch
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The tags are actually in the Branch.tags namespace, but these are
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1:1 with Branch implementations so can be tested from here.
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from bzrlib import bzrdir, errors, repository
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from bzrlib.branch import Branch, needs_read_lock, needs_write_lock
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from bzrlib.tests import TestCase, TestCaseWithTransport, TestSkipped
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from bzrlib.trace import mutter
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from bzrlib.workingtree import WorkingTree
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from bzrlib.tests.branch_implementations.test_branch \
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import TestCaseWithBranch
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class TestBranchTags(TestCaseWithBranch):
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# formats that don't support tags can skip the rest of these
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fmt = self.branch_format
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f = getattr(fmt, 'supports_tags')
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raise TestSkipped("format %s doesn't declare whether it "
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"supports tags, assuming not" % fmt)
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raise TestSkipped("format %s doesn't support tags" % fmt)
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TestCaseWithBranch.setUp(self)
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def test_tags_initially_empty(self):
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b = self.make_branch('b')
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tags = b.tags.get_tag_dict()
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self.assertEqual(tags, {})
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def test_make_and_lookup_tag(self):
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b = self.make_branch('b')
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b.tags.set_tag('tag-name', 'target-revid-1')
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b.tags.set_tag('other-name', 'target-revid-2')
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# then reopen the branch and see they're still there
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self.assertEqual(b.tags.get_tag_dict(),
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{'tag-name': 'target-revid-1',
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'other-name': 'target-revid-2',
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result = b.tags.lookup_tag('tag-name')
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self.assertEqual(result, 'target-revid-1')
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self.assertTrue(b.tags.has_tag('tag-name'))
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self.assertFalse(b.tags.has_tag('imaginary'))
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def test_reverse_tag_dict(self):
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b = self.make_branch('b')
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b.tags.set_tag('tag-name', 'target-revid-1')
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b.tags.set_tag('other-name', 'target-revid-2')
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# then reopen the branch and check reverse map id->tags list
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self.assertEqual(b.tags.get_reverse_tag_dict(),
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{'target-revid-1': ['tag-name'],
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'target-revid-2': ['other-name'],
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def test_no_such_tag(self):
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b = self.make_branch('b')
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b.tags.lookup_tag('bosko')
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except errors.NoSuchTag, e:
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self.assertEquals(e.tag_name, 'bosko')
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self.assertEquals(str(e), 'No such tag: bosko')
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self.fail("didn't get expected exception")
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def test_merge_tags(self):
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b1 = self.make_branch('b1')
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b2 = self.make_branch('b2')
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# if there are tags in the source and not the destination, then they
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b1.tags.set_tag('tagname', 'revid')
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b1.tags.merge_to(b2.tags)
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self.assertEquals(b2.tags.lookup_tag('tagname'), 'revid')
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# if a tag is in the destination and not in the source, it is not
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# removed when we merge them
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b2.tags.set_tag('in-destination', 'revid')
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result = b1.tags.merge_to(b2.tags)
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self.assertEquals(result, [])
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self.assertEquals(b2.tags.lookup_tag('in-destination'), 'revid')
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# if there's a conflicting tag, it's reported -- the command line
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# interface will say "these tags couldn't be copied"
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b1.tags.set_tag('conflicts', 'revid-1')
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b2.tags.set_tag('conflicts', 'revid-2')
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result = b1.tags.merge_to(b2.tags)
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self.assertEquals(result,
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[('conflicts', 'revid-1', 'revid-2')])
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# and it keeps the same value
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self.assertEquals(b2.tags.lookup_tag('conflicts'), 'revid-2')
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def test_unicode_tag(self):
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b1 = self.make_branch('b')
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# in anticipation of the planned change to treating revision ids as
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revid = ('revid' + tag_name).encode('utf-8')
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b1.tags.set_tag(tag_name, revid)
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self.assertEquals(b1.tags.lookup_tag(tag_name), revid)
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def test_delete_tag(self):
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b = self.make_branch('b')
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tag_name = u'\N{GREEK SMALL LETTER ALPHA}'
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revid = ('revid' + tag_name).encode('utf-8')
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b.tags.set_tag(tag_name, revid)
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# now try to delete it
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b.tags.delete_tag(tag_name)
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# now you can't look it up
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self.assertRaises(errors.NoSuchTag,
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b.tags.lookup_tag, tag_name)
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# and it's not in the dictionary
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self.assertEquals(b.tags.get_tag_dict(), {})
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# and you can't remove it a second time
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self.assertRaises(errors.NoSuchTag,
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b.tags.delete_tag, tag_name)
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# or remove a tag that never existed
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self.assertRaises(errors.NoSuchTag,
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b.tags.delete_tag, tag_name + '2')
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def test_merge_empty_tags(self):
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# you can merge tags between two instances, since neither have tags
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b1 = self.make_branch('b1')
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b2 = self.make_branch('b2')
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b1.tags.merge_to(b2.tags)
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class TestUnsupportedTags(TestCaseWithBranch):
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"""Formats that don't support tags should give reasonable errors."""
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fmt = self.branch_format
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supported = getattr(fmt, 'supports_tags')
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if supported is None:
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warn("Format %s doesn't declare whether it supports tags or not"
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raise TestSkipped('No tag support at all')
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raise TestSkipped("Format %s declares that tags are supported"
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# it's covered by TestBranchTags
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TestCaseWithBranch.setUp(self)
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def test_tag_methods_raise(self):
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b = self.make_branch('b')
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self.assertRaises(errors.TagsNotSupported,
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b.tags.set_tag, 'foo', 'bar')
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self.assertRaises(errors.TagsNotSupported,
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b.tags.lookup_tag, 'foo')
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self.assertRaises(errors.TagsNotSupported,
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b.tags.set_tag, 'foo', 'bar')
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self.assertRaises(errors.TagsNotSupported,
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b.tags.delete_tag, 'foo')
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def test_merge_empty_tags(self):
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# you can merge tags between two instances, since neither have tags
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b1 = self.make_branch('b1')
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b2 = self.make_branch('b2')
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b1.tags.merge_to(b2.tags)
added
removed
bzrlib/tests/branch_implementations/test_tags.py
