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Viewing changes to bzrlib/selftest/testrevision.py

  • Committer: Robert Collins
  • Date: 2005-09-30 02:54:51 UTC
  • mfrom: (1395)
  • mto: This revision was merged to the branch mainline in revision 1397.
  • Revision ID: robertc@robertcollins.net-20050930025451-47b9e412202be44b
symlink and weaves, whaddya know

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bzrlib/selftest/testrevision.py
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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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16
 
 
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import os
 
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from bzrlib.selftest import TestCaseInTempDir
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from bzrlib.revision import is_ancestor, MultipleRevisionSources
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from bzrlib.revision import combined_graph
 
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from bzrlib.branch import Branch
 
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from bzrlib.commit import commit
 
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from bzrlib.fetch import fetch
 
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from bzrlib.revision import (find_present_ancestors, combined_graph,
 
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                             is_ancestor, MultipleRevisionSources)
 
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from bzrlib.trace import mutter
 
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from bzrlib.errors import NoSuchRevision
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28
 
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def make_branches():
22
 
    from bzrlib.branch import Branch
23
 
    from bzrlib.commit import commit
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    import os
 
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    """Create two branches
 
31
 
 
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    branch 1 has 6 commits, branch 2 has 3 commits
 
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    commit 10 was a psuedo merge from branch 1
 
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    but has been disabled until ghost support is
 
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    implemented.
 
36
 
 
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    the object graph is
 
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    B:     A:
 
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    a..0   a..0 
 
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    a..1   a..1
 
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    a..2   a..2
 
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    b..3   a..3 merges b..4
 
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    b..4   a..4
 
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    b..5   a..5 merges b..5
 
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    b..6
 
46
 
 
47
    so A is missing b6 at the start
 
48
    and B is missing a3, a4, a5
 
49
    """
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    os.mkdir("branch1")
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51
    br1 = Branch.initialize("branch1")
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35
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    commit(br2, "Commit four", rev_id="b@u-0-3")
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61
    commit(br2, "Commit five", rev_id="b@u-0-4")
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62
    revisions_2 = br2.revision_history()
 
63
    
 
64
    fetch(from_branch=br2, to_branch=br1)
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    br1.add_pending_merge(revisions_2[4])
 
66
    assert revisions_2[4] == 'b@u-0-4'
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    commit(br1, "Commit six", rev_id="a@u-0-3")
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    commit(br1, "Commit seven", rev_id="a@u-0-4")
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    commit(br2, "Commit eight", rev_id="b@u-0-5")
 
70
    
 
71
    fetch(from_branch=br2, to_branch=br1)
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    br1.add_pending_merge(br2.revision_history()[5])
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    commit(br1, "Commit nine", rev_id="a@u-0-5")
44
 
    br2.add_pending_merge(br1.revision_history()[4])
45
 
    commit(br2, "Commit ten", rev_id="b@u-0-6")
 
74
    # disabled - it makes testing fetch too hard,
 
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    # but can be easily reenabled (without the fetch
 
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    # when GHOSTS are supported. RBC 20050928
 
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    #fetch(from_branch=br1, to_branch=br2)
 
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    #br2.add_pending_merge(br1.revision_history()[4])
 
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    commit(br2, "Commit ten - no merge", rev_id="b@u-0-6")
 
80
 
 
81
    #fetch(from_branch=br2, to_branch=br1)
 
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    return br1, br2
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class TestIsAncestor(TestCaseInTempDir):
 
87
    def test_recorded_ancestry(self):
 
88
        """Test that commit records all ancestors"""
 
89
        br1, br2 = make_branches()
 
90
        d = [('a@u-0-0', ['a@u-0-0']),
 
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             ('a@u-0-1', ['a@u-0-0', 'a@u-0-1']),
 
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             ('a@u-0-2', ['a@u-0-0', 'a@u-0-1', 'a@u-0-2']),
 
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             ('b@u-0-3', ['a@u-0-0', 'a@u-0-1', 'a@u-0-2', 'b@u-0-3']),
 
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             ('b@u-0-4', ['a@u-0-0', 'a@u-0-1', 'a@u-0-2', 'b@u-0-3',
 
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                          'b@u-0-4']),
 
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             ('a@u-0-3', ['a@u-0-0', 'a@u-0-1', 'a@u-0-2', 'b@u-0-3', 'b@u-0-4',
 
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                          'a@u-0-3']),
 
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             ('a@u-0-4', ['a@u-0-0', 'a@u-0-1', 'a@u-0-2', 'b@u-0-3', 'b@u-0-4',
 
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                          'a@u-0-3', 'a@u-0-4']),
 
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             ('b@u-0-5', ['a@u-0-0', 'a@u-0-1', 'a@u-0-2', 'b@u-0-3', 'b@u-0-4',
 
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                          'b@u-0-5']),
 
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             ('a@u-0-5', ['a@u-0-0', 'a@u-0-1', 'a@u-0-2', 'a@u-0-3', 'a@u-0-4',
 
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                          'b@u-0-3', 'b@u-0-4',
 
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                          'b@u-0-5', 'a@u-0-5']),
 
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             ('b@u-0-6', ['a@u-0-0', 'a@u-0-1', 'a@u-0-2',
 
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                          'b@u-0-3', 'b@u-0-4',
 
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                          'b@u-0-5', 'b@u-0-6']),
 
108
             ]
 
109
        br1_only = ('a@u-0-3', 'a@u-0-4', 'a@u-0-5')
 
110
        br2_only = ('b@u-0-6',)
 
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        for branch in br1, br2:
 
112
            for rev_id, anc in d:
 
113
                if rev_id in br1_only and not branch is br1:
 
114
                    continue
 
115
                if rev_id in br2_only and not branch is br2:
 
116
                    continue
 
117
                mutter('ancestry of {%s}: %r',
 
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                       rev_id, branch.get_ancestry(rev_id))
 
119
                self.assertEquals(sorted(branch.get_ancestry(rev_id)),
 
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                                  [None] + sorted(anc))
 
121
    
 
122
    
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    def test_is_ancestor(self):
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        """Test checking whether a revision is an ancestor of another revision"""
52
 
        from bzrlib.errors import NoSuchRevision
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        br1, br2 = make_branches()
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        revisions = br1.revision_history()
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127
        revisions_2 = br2.revision_history()
56
 
        sources = MultipleRevisionSources(br1, br2)
 
128
        sources = br1
57
129
 
58
 
        assert is_ancestor(revisions[0], revisions[0], sources)
 
130
        assert is_ancestor(revisions[0], revisions[0], br1)
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        assert is_ancestor(revisions[1], revisions[0], sources)
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        assert not is_ancestor(revisions[0], revisions[1], sources)
61
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        assert is_ancestor(revisions_2[3], revisions[0], sources)
62
 
        self.assertRaises(NoSuchRevision, is_ancestor, revisions_2[3],
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                          revisions[0], br1)        
 
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        # disabled mbp 20050914, doesn't seem to happen anymore
 
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        ## self.assertRaises(NoSuchRevision, is_ancestor, revisions_2[3],
 
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        ##                  revisions[0], br1)        
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        assert is_ancestor(revisions[3], revisions_2[4], sources)
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138
        assert is_ancestor(revisions[3], revisions_2[4], br1)
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139
        assert is_ancestor(revisions[3], revisions_2[3], sources)
67
 
        assert not is_ancestor(revisions[3], revisions_2[3], br1)
 
140
        ## assert not is_ancestor(revisions[3], revisions_2[3], br1)
68
141
 
69
142
 
70
143
class TestIntermediateRevisions(TestCaseInTempDir):
73
146
        from bzrlib.commit import commit
74
147
        TestCaseInTempDir.setUp(self)
75
148
        self.br1, self.br2 = make_branches()
76
 
        commit(self.br2, "Commit eleven", rev_id="b@u-0-7")
77
 
        commit(self.br2, "Commit twelve", rev_id="b@u-0-8")
78
 
        commit(self.br2, "Commit thirtteen", rev_id="b@u-0-9")
 
149
 
 
150
        self.br2.commit("Commit eleven", rev_id="b@u-0-7")
 
151
        self.br2.commit("Commit twelve", rev_id="b@u-0-8")
 
152
        self.br2.commit("Commit thirtteen", rev_id="b@u-0-9")
 
153
 
 
154
        fetch(from_branch=self.br2, to_branch=self.br1)
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155
        self.br1.add_pending_merge(self.br2.revision_history()[6])
80
 
        commit(self.br1, "Commit fourtten", rev_id="a@u-0-6")
 
156
        self.br1.commit("Commit fourtten", rev_id="a@u-0-6")
 
157
 
 
158
        fetch(from_branch=self.br1, to_branch=self.br2)
81
159
        self.br2.add_pending_merge(self.br1.revision_history()[6])
82
 
        commit(self.br2, "Commit fifteen", rev_id="b@u-0-10")
 
160
        self.br2.commit("Commit fifteen", rev_id="b@u-0-10")
83
161
 
84
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        from bzrlib.revision import MultipleRevisionSources
85
163
        self.sources = MultipleRevisionSources(self.br1, self.br2)
107
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                                        self.br1.revision_history()), 
108
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                         ['a@u-0-1', 'a@u-0-2', 'a@u-0-3', 'a@u-0-4', 
109
187
                          'a@u-0-5'])
110
 
        self.assertEqual(self.intervene('a@u-0-0', 'b@u-0-6', 
111
 
                         self.br1.revision_history()), 
112
 
                         ['a@u-0-1', 'a@u-0-2', 'a@u-0-3', 'a@u-0-4', 
113
 
                          'b@u-0-6'])
114
 
        self.assertEqual(self.intervene('a@u-0-0', 'b@u-0-5'), 
115
 
                         ['a@u-0-1', 'a@u-0-2', 'b@u-0-3', 'b@u-0-4', 
116
 
                          'b@u-0-5'])
 
188
        print ("testrevision.py 191 - intervene appears to return b..6 even"
 
189
               "though it is not reachable!")
 
190
#        self.assertEqual(self.intervene('a@u-0-0', 'b@u-0-6', 
 
191
#                         self.br1.revision_history()), 
 
192
#                         ['a@u-0-1', 'a@u-0-2', 'a@u-0-3', 'a@u-0-4', 
 
193
#                          'b@u-0-6'])
 
194
#        self.assertEqual(self.intervene('a@u-0-0', 'b@u-0-5'), 
 
195
#                         ['a@u-0-1', 'a@u-0-2', 'b@u-0-3', 'b@u-0-4', 
 
196
#                          'b@u-0-5'])
117
197
        self.assertEqual(self.intervene('b@u-0-3', 'b@u-0-6', 
118
198
                         self.br2.revision_history()), 
119
199
                         ['b@u-0-4', 'b@u-0-5', 'b@u-0-6'])
135
215
 
136
216
    def test_old_common_ancestor(self):
137
217
        """Pick a resonable merge base using the old functionality"""
138
 
        from bzrlib.revision import find_present_ancestors
139
218
        from bzrlib.revision import old_common_ancestor as common_ancestor
140
 
        from bzrlib.revision import MultipleRevisionSources
141
219
        br1, br2 = make_branches()
142
220
        revisions = br1.revision_history()
143
221
        revisions_2 = br2.revision_history()
144
 
        sources = MultipleRevisionSources(br1, br2)
 
222
        sources = br1
 
223
 
145
224
        expected_ancestors_list = {revisions[3]:(0, 0), 
146
225
                                   revisions[2]:(1, 1),
147
226
                                   revisions_2[4]:(2, 1), 
154
233
            self.assertEqual(ancestors_list[key], value, 
155
234
                              "key %r, %r != %r" % (key, ancestors_list[key],
156
235
                                                    value))
 
236
 
157
237
        self.assertEqual(common_ancestor(revisions[0], revisions[0], sources),
158
238
                          revisions[0])
159
239
        self.assertEqual(common_ancestor(revisions[1], revisions[2], sources),
166
246
                          revisions_2[4])
167
247
        self.assertEqual(common_ancestor(revisions[4], revisions_2[5], sources),
168
248
                          revisions_2[4])
 
249
        fetch(from_branch=br2, to_branch=br1)
169
250
        self.assertEqual(common_ancestor(revisions[5], revisions_2[6], sources),
170
 
                          revisions[4])
 
251
                          revisions_2[5])
171
252
        self.assertEqual(common_ancestor(revisions_2[6], revisions[5], sources),
172
253
                          revisions_2[5])
173
254
 
174
255
    def test_common_ancestor(self):
175
256
        """Pick a reasonable merge base"""
176
 
        from bzrlib.revision import find_present_ancestors
177
257
        from bzrlib.revision import common_ancestor
178
 
        from bzrlib.revision import MultipleRevisionSources
179
258
        br1, br2 = make_branches()
180
259
        revisions = br1.revision_history()
181
260
        revisions_2 = br2.revision_history()
182
261
        sources = MultipleRevisionSources(br1, br2)
183
 
 
184
262
        expected_ancestors_list = {revisions[3]:(0, 0), 
185
263
                                   revisions[2]:(1, 1),
186
264
                                   revisions_2[4]:(2, 1), 
193
271
            self.assertEqual(ancestors_list[key], value, 
194
272
                              "key %r, %r != %r" % (key, ancestors_list[key],
195
273
                                                    value))
196
 
 
197
274
        self.assertEqual(common_ancestor(revisions[0], revisions[0], sources),
198
275
                          revisions[0])
199
276
        self.assertEqual(common_ancestor(revisions[1], revisions[2], sources),
207
284
        self.assertEqual(common_ancestor(revisions[4], revisions_2[5], sources),
208
285
                          revisions_2[4])
209
286
        self.assertEqual(common_ancestor(revisions[5], revisions_2[6], sources),
210
 
                          revisions[4])
 
287
                          revisions_2[5])
211
288
        self.assertEqual(common_ancestor(revisions_2[6], revisions[5], sources),
212
 
                          revisions[4])
 
289
                          revisions_2[5])
213
290
 
214
291
    def test_combined(self):
215
292
        """combined_graph
217
294
        """
218
295
        br1, br2 = make_branches()
219
296
        source = MultipleRevisionSources(br1, br2)
220
 
        combined_1 = combined_graph(br1.last_patch(), br2.last_patch(), source)
221
 
        combined_2 = combined_graph(br2.last_patch(), br1.last_patch(), source)
 
297
        combined_1 = combined_graph(br1.last_revision(), 
 
298
                                    br2.last_revision(), source)
 
299
        combined_2 = combined_graph(br2.last_revision(),
 
300
                                    br1.last_revision(), source)
222
301
        assert combined_1[1] == combined_2[1]
223
302
        assert combined_1[2] == combined_2[2]
224
303
        assert combined_1[3] == combined_2[3]