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tests/test_branch.py
 
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# Copyright (C) 2007 Canonical Ltd
 
2
#
 
3
# This program is free software; you can redistribute it and/or modify
 
4
# it under the terms of the GNU General Public License as published by
 
5
# the Free Software Foundation; either version 2 of the License, or
 
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# (at your option) any later version.
 
7
#
 
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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
 
11
# GNU General Public License for more details.
 
12
#
 
13
# You should have received a copy of the GNU General Public License
 
14
# along with this program; if not, write to the Free Software
 
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
16
 
 
17
 
 
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"""Tests for interfacing with a Git Branch"""
 
19
 
 
20
 
 
21
import dulwich
 
22
from dulwich.objects import (
 
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    Commit,
 
24
    Tag,
 
25
    )
 
26
from dulwich.repo import (
 
27
    Repo as GitRepo,
 
28
    )
 
29
 
 
30
import os
 
31
import urllib
 
32
 
 
33
from .... import (
 
34
    errors,
 
35
    revision,
 
36
    urlutils,
 
37
    )
 
38
from ....branch import (
 
39
    Branch,
 
40
    InterBranch,
 
41
    UnstackableBranchFormat,
 
42
    )
 
43
from ....controldir import (
 
44
    ControlDir,
 
45
    )
 
46
from ....repository import (
 
47
    Repository,
 
48
    )
 
49
 
 
50
from .. import (
 
51
    branch,
 
52
    tests,
 
53
    )
 
54
from ..dir import (
 
55
    LocalGitControlDirFormat,
 
56
    )
 
57
from ..mapping import (
 
58
    default_mapping,
 
59
    )
 
60
 
 
61
 
 
62
class TestGitBranch(tests.TestCaseInTempDir):
 
63
 
 
64
    def test_open_by_ref(self):
 
65
        GitRepo.init('.')
 
66
        url = "%s,ref=%s" % (
 
67
            urlutils.local_path_to_url(self.test_dir),
 
68
            urllib.quote("refs/remotes/origin/unstable", safe='')
 
69
            )
 
70
        d = ControlDir.open(url)
 
71
        b = d.create_branch()
 
72
        self.assertEquals(b.ref, "refs/remotes/origin/unstable")
 
73
 
 
74
    def test_open_existing(self):
 
75
        r = GitRepo.init('.')
 
76
        del r.refs["HEAD"]
 
77
        d = ControlDir.open('.')
 
78
        thebranch = d.create_branch()
 
79
        self.assertIsInstance(thebranch, branch.GitBranch)
 
80
 
 
81
    def test_repr(self):
 
82
        r = GitRepo.init('.')
 
83
        del r.refs["HEAD"]
 
84
        d = ControlDir.open('.')
 
85
        thebranch = d.create_branch()
 
86
        self.assertEquals(
 
87
            "<LocalGitBranch('%s/', u'')>" % (
 
88
                urlutils.local_path_to_url(self.test_dir),),
 
89
            repr(thebranch))
 
90
 
 
91
    def test_last_revision_is_null(self):
 
92
        r = GitRepo.init('.')
 
93
        del r.refs["HEAD"]
 
94
        thedir = ControlDir.open('.')
 
95
        thebranch = thedir.create_branch()
 
96
        self.assertEqual(revision.NULL_REVISION, thebranch.last_revision())
 
97
        self.assertEqual((0, revision.NULL_REVISION),
 
98
                         thebranch.last_revision_info())
 
99
 
 
100
    def simple_commit_a(self):
 
101
        r = GitRepo.init('.')
 
102
        self.build_tree(['a'])
 
103
        r.stage(["a"])
 
104
        return r.do_commit("a", committer="Somebody <foo@example.com>")
 
105
 
 
106
    def test_last_revision_is_valid(self):
 
107
        head = self.simple_commit_a()
 
108
        thebranch = Branch.open('.')
 
109
        self.assertEqual(default_mapping.revision_id_foreign_to_bzr(head),
 
110
                         thebranch.last_revision())
 
111
 
 
112
    def test_last_revision_info(self):
 
113
        reva = self.simple_commit_a()
 
114
        self.build_tree(['b'])
 
115
        r = GitRepo(".")
 
116
        r.stage("b")
 
117
        revb = r.do_commit("b", committer="Somebody <foo@example.com>")
 
118
 
 
119
        thebranch = Branch.open('.')
 
120
        self.assertEquals((2, default_mapping.revision_id_foreign_to_bzr(revb)), thebranch.last_revision_info())
 
121
 
 
122
    def test_tag_annotated(self):
 
123
        reva = self.simple_commit_a()
 
124
        o = Tag()
 
125
        o.name = "foo"
 
126
        o.tagger = "Jelmer <foo@example.com>"
 
127
        o.message = "add tag"
 
128
        o.object = (Commit, reva)
 
129
        o.tag_timezone = 0
 
130
        o.tag_time = 42
 
131
        r = GitRepo(".")
 
132
        r.object_store.add_object(o)
 
133
        r['refs/tags/foo'] = o.id
 
134
        thebranch = Branch.open('.')
 
135
        self.assertEquals({"foo": default_mapping.revision_id_foreign_to_bzr(reva)},
 
136
                          thebranch.tags.get_tag_dict())
 
137
 
 
138
    def test_tag(self):
 
139
        reva = self.simple_commit_a()
 
140
        r = GitRepo(".")
 
141
        r.refs["refs/tags/foo"] = reva
 
142
        thebranch = Branch.open('.')
 
143
        self.assertEquals({"foo": default_mapping.revision_id_foreign_to_bzr(reva)},
 
144
                          thebranch.tags.get_tag_dict())
 
145
 
 
146
 
 
147
 
 
148
class TestWithGitBranch(tests.TestCaseWithTransport):
 
149
 
 
150
    def setUp(self):
 
151
        tests.TestCaseWithTransport.setUp(self)
 
152
        r = dulwich.repo.Repo.create(self.test_dir)
 
153
        del r.refs["HEAD"]
 
154
        d = ControlDir.open(self.test_dir)
 
155
        self.git_branch = d.create_branch()
 
156
 
 
157
    def test_get_parent(self):
 
158
        self.assertIs(None, self.git_branch.get_parent())
 
159
 
 
160
    def test_get_stacked_on_url(self):
 
161
        self.assertRaises(UnstackableBranchFormat,
 
162
            self.git_branch.get_stacked_on_url)
 
163
 
 
164
    def test_get_physical_lock_status(self):
 
165
        self.assertFalse(self.git_branch.get_physical_lock_status())
 
166
 
 
167
 
 
168
class TestGitBranchFormat(tests.TestCase):
 
169
 
 
170
    def setUp(self):
 
171
        super(TestGitBranchFormat, self).setUp()
 
172
        self.format = branch.GitBranchFormat()
 
173
 
 
174
    def test_get_format_description(self):
 
175
        self.assertEquals("Git Branch", self.format.get_format_description())
 
176
 
 
177
    def test_get_network_name(self):
 
178
        self.assertEquals("git", self.format.network_name())
 
179
 
 
180
    def test_supports_tags(self):
 
181
        self.assertTrue(self.format.supports_tags())
 
182
 
 
183
 
 
184
class BranchTests(tests.TestCaseInTempDir):
 
185
 
 
186
    def make_onerev_branch(self):
 
187
        os.mkdir("d")
 
188
        os.chdir("d")
 
189
        GitRepo.init('.')
 
190
        bb = tests.GitBranchBuilder()
 
191
        bb.set_file("foobar", "foo\nbar\n", False)
 
192
        mark = bb.commit("Somebody <somebody@someorg.org>", "mymsg")
 
193
        gitsha = bb.finish()[mark]
 
194
        os.chdir("..")
 
195
        return os.path.abspath("d"), gitsha
 
196
 
 
197
    def make_tworev_branch(self):
 
198
        os.mkdir("d")
 
199
        os.chdir("d")
 
200
        GitRepo.init('.')
 
201
        bb = tests.GitBranchBuilder()
 
202
        bb.set_file("foobar", "foo\nbar\n", False)
 
203
        mark1 = bb.commit("Somebody <somebody@someorg.org>", "mymsg")
 
204
        mark2 = bb.commit("Somebody <somebody@someorg.org>", "mymsg")
 
205
        marks = bb.finish()
 
206
        os.chdir("..")
 
207
        return "d", (marks[mark1], marks[mark2])
 
208
 
 
209
    def clone_git_branch(self, from_url, to_url):
 
210
        from_dir = ControlDir.open(from_url)
 
211
        to_dir = from_dir.sprout(to_url)
 
212
        return to_dir.open_branch()
 
213
 
 
214
    def test_single_rev(self):
 
215
        path, gitsha = self.make_onerev_branch()
 
216
        oldrepo = Repository.open(path)
 
217
        revid = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha)
 
218
        self.assertEquals(gitsha, oldrepo._git.get_refs()["refs/heads/master"])
 
219
        newbranch = self.clone_git_branch(path, "f")
 
220
        self.assertEquals([revid], newbranch.repository.all_revision_ids())
 
221
 
 
222
    def test_sprouted_tags(self):
 
223
        path, gitsha = self.make_onerev_branch()
 
224
        r = GitRepo(path)
 
225
        r.refs["refs/tags/lala"] = r.head()
 
226
        oldrepo = Repository.open(path)
 
227
        revid = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha)
 
228
        newbranch = self.clone_git_branch(path, "f")
 
229
        self.assertEquals({"lala": revid}, newbranch.tags.get_tag_dict())
 
230
        self.assertEquals([revid], newbranch.repository.all_revision_ids())
 
231
 
 
232
    def test_interbranch_pull(self):
 
233
        path, (gitsha1, gitsha2) = self.make_tworev_branch()
 
234
        oldrepo = Repository.open(path)
 
235
        revid2 = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha2)
 
236
        newbranch = self.make_branch('g')
 
237
        inter_branch = InterBranch.get(Branch.open(path), newbranch)
 
238
        inter_branch.pull()
 
239
        self.assertEquals(revid2, newbranch.last_revision())
 
240
 
 
241
    def test_interbranch_pull_noop(self):
 
242
        path, (gitsha1, gitsha2) = self.make_tworev_branch()
 
243
        oldrepo = Repository.open(path)
 
244
        revid2 = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha2)
 
245
        newbranch = self.make_branch('g')
 
246
        inter_branch = InterBranch.get(Branch.open(path), newbranch)
 
247
        inter_branch.pull()
 
248
        # This is basically "assertNotRaises"
 
249
        inter_branch.pull()
 
250
        self.assertEquals(revid2, newbranch.last_revision())
 
251
 
 
252
    def test_interbranch_pull_stop_revision(self):
 
253
        path, (gitsha1, gitsha2) = self.make_tworev_branch()
 
254
        oldrepo = Repository.open(path)
 
255
        revid1 = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha1)
 
256
        newbranch = self.make_branch('g')
 
257
        inter_branch = InterBranch.get(Branch.open(path), newbranch)
 
258
        inter_branch.pull(stop_revision=revid1)
 
259
        self.assertEquals(revid1, newbranch.last_revision())
 
260
 
 
261
    def test_interbranch_pull_with_tags(self):
 
262
        path, (gitsha1, gitsha2) = self.make_tworev_branch()
 
263
        gitrepo = GitRepo(path)
 
264
        gitrepo.refs["refs/tags/sometag"] = gitsha2
 
265
        oldrepo = Repository.open(path)
 
266
        revid1 = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha1)
 
267
        revid2 = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha2)
 
268
        newbranch = self.make_branch('g')
 
269
        source_branch = Branch.open(path)
 
270
        source_branch.get_config().set_user_option("branch.fetch_tags", True)
 
271
        inter_branch = InterBranch.get(source_branch, newbranch)
 
272
        inter_branch.pull(stop_revision=revid1)
 
273
        self.assertEquals(revid1, newbranch.last_revision())
 
274
        self.assertTrue(newbranch.repository.has_revision(revid2))
 
275
 
 
276
 
 
277
class ForeignTestsBranchFactory(object):
 
278
 
 
279
    def make_empty_branch(self, transport):
 
280
        d = LocalGitControlDirFormat().initialize_on_transport(transport)
 
281
        return d.create_branch()
 
282
 
 
283
    make_branch = make_empty_branch