Skip to content
Navigation Menu
{{ message }}
-
-
Notifications
You must be signed in to change notification settings - Fork 974
Expand file tree
/
Copy pathtest_diff.py
More file actions
380 lines (323 loc) · 15.8 KB
/
test_diff.py
File metadata and controls
380 lines (323 loc) · 15.8 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
# coding: utf-8
# test_diff.py
# Copyright (C) 2008, 2009 Michael Trier (mtrier@gmail.com) and contributors
#
# This module is part of GitPython and is released under
# the BSD License: http://www.opensource.org/licenses/bsd-license.php
import ddt
import shutil
import tempfile
import unittest
from git import (
Repo,
GitCommandError,
Diff,
DiffIndex,
NULL_TREE,
Submodule,
)
from git.cmd import Git
from test.lib import (
TestBase,
StringProcessAdapter,
fixture,
)
from test.lib import with_rw_directory
import os.path as osp
def to_raw(input):
return input.replace(b'\t', b'\x00')
@ddt.ddt
class TestDiff(TestBase):
def setUp(self):
self.repo_dir = tempfile.mkdtemp()
self.submodule_dir = tempfile.mkdtemp()
def tearDown(self):
import gc
gc.collect()
shutil.rmtree(self.repo_dir)
shutil.rmtree(self.submodule_dir)
def _assert_diff_format(self, diffs):
# verify that the format of the diff is sane
for diff in diffs:
if diff.a_mode:
assert isinstance(diff.a_mode, int)
if diff.b_mode:
assert isinstance(diff.b_mode, int)
if diff.a_blob:
assert not diff.a_blob.path.endswith('\n')
if diff.b_blob:
assert not diff.b_blob.path.endswith('\n')
# END for each diff
return diffs
@with_rw_directory
def test_diff_with_staged_file(self, rw_dir):
# SETUP INDEX WITH MULTIPLE STAGES
r = Repo.init(rw_dir)
fp = osp.join(rw_dir, 'hello.txt')
with open(fp, 'w') as fs:
fs.write("hello world")
r.git.add(Git.polish_url(fp))
r.git.commit(message="init")
with open(fp, 'w') as fs:
fs.write("Hola Mundo")
r.git.add(Git.polish_url(fp))
self.assertEqual(len(r.index.diff("HEAD", create_patch=True)), 1,
"create_patch should generate patch of diff to HEAD")
r.git.commit(message="change on master")
self.assertEqual(len(r.index.diff("HEAD", create_patch=True)), 0,
"create_patch should generate no patch, already on HEAD")
r.git.checkout('HEAD~1', b='topic')
with open(fp, 'w') as fs:
fs.write("Hallo Welt")
r.git.commit(all=True, message="change on topic branch")
# there must be a merge-conflict
with self.assertRaises(GitCommandError):
r.git.cherry_pick('master')
# Now do the actual testing - this should just work
self.assertEqual(len(r.index.diff(None)), 2)
self.assertEqual(len(r.index.diff(None, create_patch=True)), 0,
"This should work, but doesn't right now ... it's OK")
def test_list_from_string_new_mode(self):
output = StringProcessAdapter(fixture('diff_new_mode'))
diffs = Diff._index_from_patch_format(self.rorepo, output)
self._assert_diff_format(diffs)
self.assertEqual(1, len(diffs))
self.assertEqual(8, len(diffs[0].diff.splitlines()))
def test_diff_with_rename(self):
output = StringProcessAdapter(fixture('diff_rename'))
diffs = Diff._index_from_patch_format(self.rorepo, output)
self._assert_diff_format(diffs)
self.assertEqual(1, len(diffs))
diff = diffs[0]
self.assertTrue(diff.renamed_file)
self.assertTrue(diff.renamed)
self.assertEqual(diff.rename_from, 'Jérôme')
self.assertEqual(diff.rename_to, 'müller')
self.assertEqual(diff.raw_rename_from, b'J\xc3\xa9r\xc3\xb4me')
self.assertEqual(diff.raw_rename_to, b'm\xc3\xbcller')
assert isinstance(str(diff), str)
output = StringProcessAdapter(to_raw(fixture('diff_rename_raw')))
diffs = Diff._index_from_raw_format(self.rorepo, output)
self.assertEqual(len(diffs), 1)
diff = diffs[0]
self.assertIsNotNone(diff.renamed_file)
self.assertIsNotNone(diff.renamed)
self.assertEqual(diff.rename_from, 'this')
self.assertEqual(diff.rename_to, 'that')
self.assertEqual(diff.change_type, 'R')
self.assertEqual(diff.score, 100)
self.assertEqual(len(list(diffs.iter_change_type('R'))), 1)
def test_diff_with_copied_file(self):
output = StringProcessAdapter(fixture('diff_copied_mode'))
diffs = Diff._index_from_patch_format(self.rorepo, output)
self._assert_diff_format(diffs)
self.assertEqual(1, len(diffs))
diff = diffs[0]
self.assertTrue(diff.copied_file)
self.assertTrue(diff.a_path, 'test1.txt')
self.assertTrue(diff.b_path, 'test2.txt')
assert isinstance(str(diff), str)
output = StringProcessAdapter(to_raw(fixture('diff_copied_mode_raw')))
diffs = Diff._index_from_raw_format(self.rorepo, output)
self.assertEqual(len(diffs), 1)
diff = diffs[0]
self.assertEqual(diff.change_type, 'C')
self.assertEqual(diff.score, 100)
self.assertEqual(diff.a_path, 'test1.txt')
self.assertEqual(diff.b_path, 'test2.txt')
self.assertEqual(len(list(diffs.iter_change_type('C'))), 1)
def test_diff_with_change_in_type(self):
output = StringProcessAdapter(fixture('diff_change_in_type'))
diffs = Diff._index_from_patch_format(self.rorepo, output)
self._assert_diff_format(diffs)
self.assertEqual(2, len(diffs))
diff = diffs[0]
self.assertIsNotNone(diff.deleted_file)
self.assertEqual(diff.a_path, 'this')
self.assertEqual(diff.b_path, 'this')
assert isinstance(str(diff), str)
diff = diffs[1]
self.assertEqual(diff.a_path, None)
self.assertEqual(diff.b_path, 'this')
self.assertIsNotNone(diff.new_file)
assert isinstance(str(diff), str)
output = StringProcessAdapter(to_raw(fixture('diff_change_in_type_raw')))
diffs = Diff._index_from_raw_format(self.rorepo, output)
self.assertEqual(len(diffs), 1)
diff = diffs[0]
self.assertEqual(diff.rename_from, None)
self.assertEqual(diff.rename_to, None)
self.assertEqual(diff.change_type, 'T')
self.assertEqual(len(list(diffs.iter_change_type('T'))), 1)
def test_diff_of_modified_files_not_added_to_the_index(self):
output = StringProcessAdapter(to_raw(fixture('diff_abbrev-40_full-index_M_raw_no-color')))
diffs = Diff._index_from_raw_format(self.rorepo, output)
self.assertEqual(len(diffs), 1, 'one modification')
self.assertEqual(len(list(diffs.iter_change_type('M'))), 1, 'one modification')
self.assertEqual(diffs[0].change_type, 'M')
self.assertIsNone(diffs[0].b_blob,)
@ddt.data(
(Diff._index_from_patch_format, 'diff_patch_binary'),
(Diff._index_from_raw_format, 'diff_raw_binary')
)
def test_binary_diff(self, case):
method, file_name = case
res = method(None, StringProcessAdapter(fixture(file_name)))
self.assertEqual(len(res), 1)
self.assertEqual(len(list(res.iter_change_type('M'))), 1)
if res[0].diff:
self.assertEqual(res[0].diff,
b"Binary files a/rps and b/rps differ\n",
"in patch mode, we get a diff text")
self.assertIsNotNone(str(res[0]), "This call should just work")
def test_diff_index(self):
output = StringProcessAdapter(fixture('diff_index_patch'))
res = Diff._index_from_patch_format(None, output)
self.assertEqual(len(res), 6)
for dr in res:
self.assertTrue(dr.diff.startswith(b'@@'), dr)
self.assertIsNotNone(str(dr), "Diff to string conversion should be possible")
# end for each diff
dr = res[3]
assert dr.diff.endswith(b"+Binary files a/rps and b/rps differ\n")
def test_diff_index_raw_format(self):
output = StringProcessAdapter(fixture('diff_index_raw'))
res = Diff._index_from_raw_format(None, output)
self.assertIsNotNone(res[0].deleted_file)
self.assertIsNone(res[0].b_path,)
@unittest.skip("This currently fails and would need someone to improve diff parsing")
def test_diff_file_with_colon(self):
output = fixture('diff_file_with_colon')
res = []
Diff._handle_diff_line(output, None, res)
def test_diff_initial_commit(self):
initial_commit = self.rorepo.commit('33ebe7acec14b25c5f84f35a664803fcab2f7781')
# Without creating a patch...
diff_index = initial_commit.diff(NULL_TREE)
self.assertEqual(diff_index[0].b_path, 'CHANGES')
self.assertIsNotNone(diff_index[0].new_file)
self.assertEqual(diff_index[0].diff, '')
# ...and with creating a patch
diff_index = initial_commit.diff(NULL_TREE, create_patch=True)
self.assertIsNone(diff_index[0].a_path, repr(diff_index[0].a_path))
self.assertEqual(diff_index[0].b_path, 'CHANGES', repr(diff_index[0].b_path))
self.assertIsNotNone(diff_index[0].new_file)
self.assertEqual(diff_index[0].diff, fixture('diff_initial'))
def test_diff_unsafe_paths(self):
output = StringProcessAdapter(fixture('diff_patch_unsafe_paths'))
res = Diff._index_from_patch_format(None, output)
# The "Additions"
self.assertEqual(res[0].b_path, 'path/ starting with a space')
self.assertEqual(res[1].b_path, 'path/"with-quotes"')
self.assertEqual(res[2].b_path, "path/'with-single-quotes'")
self.assertEqual(res[3].b_path, 'path/ending in a space ')
self.assertEqual(res[4].b_path, 'path/with\ttab')
self.assertEqual(res[5].b_path, 'path/with\nnewline')
self.assertEqual(res[6].b_path, 'path/with spaces')
self.assertEqual(res[7].b_path, 'path/with-question-mark?')
self.assertEqual(res[8].b_path, 'path/¯\\_(ツ)_|¯')
self.assertEqual(res[9].b_path, 'path/💩.txt')
self.assertEqual(res[9].b_rawpath, b'path/\xf0\x9f\x92\xa9.txt')
self.assertEqual(res[10].b_path, 'path/�-invalid-unicode-path.txt')
self.assertEqual(res[10].b_rawpath, b'path/\x80-invalid-unicode-path.txt')
# The "Moves"
# NOTE: The path prefixes a/ and b/ here are legit! We're actually
# verifying that it's not "a/a/" that shows up, see the fixture data.
self.assertEqual(res[11].a_path, 'a/with spaces') # NOTE: path a/ here legit!
self.assertEqual(res[11].b_path, 'b/with some spaces') # NOTE: path b/ here legit!
self.assertEqual(res[12].a_path, 'a/ending in a space ')
self.assertEqual(res[12].b_path, 'b/ending with space ')
self.assertEqual(res[13].a_path, 'a/"with-quotes"')
self.assertEqual(res[13].b_path, 'b/"with even more quotes"')
def test_diff_patch_format(self):
# test all of the 'old' format diffs for completness - it should at least
# be able to deal with it
fixtures = ("diff_2", "diff_2f", "diff_f", "diff_i", "diff_mode_only",
"diff_new_mode", "diff_numstat", "diff_p", "diff_rename",
"diff_tree_numstat_root", "diff_patch_unsafe_paths")
for fixture_name in fixtures:
diff_proc = StringProcessAdapter(fixture(fixture_name))
Diff._index_from_patch_format(self.rorepo, diff_proc)
# END for each fixture
def test_diff_with_spaces(self):
data = StringProcessAdapter(fixture('diff_file_with_spaces'))
diff_index = Diff._index_from_patch_format(self.rorepo, data)
self.assertIsNone(diff_index[0].a_path, repr(diff_index[0].a_path))
self.assertEqual(diff_index[0].b_path, 'file with spaces', repr(diff_index[0].b_path))
def test_diff_submodule(self):
"""Test that diff is able to correctly diff commits that cover submodule changes"""
# Init a temp git repo that will be referenced as a submodule
sub = Repo.init(self.submodule_dir)
with open(self.submodule_dir + "/subfile", "w") as sub_subfile:
sub_subfile.write("")
sub.index.add(["subfile"])
sub.index.commit("first commit")
# Init a temp git repo that will incorporate the submodule
repo = Repo.init(self.repo_dir)
with open(self.repo_dir + "/test", "w") as foo_test:
foo_test.write("")
repo.index.add(['test'])
Submodule.add(repo, "subtest", "sub", url="file://" + self.submodule_dir)
repo.index.commit("first commit")
repo.create_tag('1')
# Add a commit to the submodule
submodule = repo.submodule('subtest')
with open(self.repo_dir + "/sub/subfile", "w") as foo_sub_subfile:
foo_sub_subfile.write("blub")
submodule.module().index.add(["subfile"])
submodule.module().index.commit("changed subfile")
submodule.binsha = submodule.module().head.commit.binsha
# Commit submodule updates in parent repo
repo.index.add([submodule])
repo.index.commit("submodule changed")
repo.create_tag('2')
diff = repo.commit('1').diff(repo.commit('2'))[0]
# If diff is unable to find the commit hashes (looks in wrong repo) the *_blob.size
# property will be a string containing exception text, an int indicates success
self.assertIsInstance(diff.a_blob.size, int)
self.assertIsInstance(diff.b_blob.size, int)
def test_diff_interface(self):
# test a few variations of the main diff routine
assertion_map = {}
for i, commit in enumerate(self.rorepo.iter_commits('0.1.6', max_count=2)):
diff_item = commit
if i % 2 == 0:
diff_item = commit.tree
# END use tree every second item
for other in (None, NULL_TREE, commit.Index, commit.parents[0]):
for paths in (None, "CHANGES", ("CHANGES", "lib")):
for create_patch in range(2):
diff_index = diff_item.diff(other=other, paths=paths, create_patch=create_patch)
assert isinstance(diff_index, DiffIndex)
if diff_index:
self._assert_diff_format(diff_index)
for ct in DiffIndex.change_type:
key = 'ct_%s' % ct
assertion_map.setdefault(key, 0)
assertion_map[key] = assertion_map[key] + len(list(diff_index.iter_change_type(ct)))
# END for each changetype
# check entries
diff_set = set()
diff_set.add(diff_index[0])
diff_set.add(diff_index[0])
self.assertEqual(len(diff_set), 1)
self.assertEqual(diff_index[0], diff_index[0])
self.assertFalse(diff_index[0] != diff_index[0])
for dr in diff_index:
self.assertIsNotNone(str(dr), "Diff to string conversion should be possible")
# END diff index checking
# END for each patch option
# END for each path option
# END for each other side
# END for each commit
# assert we could always find at least one instance of the members we
# can iterate in the diff index - if not this indicates its not working correctly
# or our test does not span the whole range of possibilities
for key, value in assertion_map.items():
self.assertIsNotNone(value, "Did not find diff for %s" % key)
# END for each iteration type
# test path not existing in the index - should be ignored
c = self.rorepo.head.commit
cp = c.parents[0]
diff_index = c.diff(cp, ["does/not/exist"])
self.assertEqual(len(diff_index), 0)
You can’t perform that action at this time.