GitPython/test/test_diff.py at 3.1.38 · gitpython-developers/GitPython · GitHub

History

481 lines (410 loc) · 18.7 KB

Raw

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

381

382

383

384

385

386

387

388

389

390

391

392

393

394

395

396

397

398

399

400

401

402

403

404

405

406

407

408

409

410

411

412

413

414

415

416

417

418

419

420

421

422

423

424

425

426

427

428

429

430

431

432

433

434

435

436

437

438

439

440

441

442

443

444

445

446

447

448

449

450

451

452

453

454

455

456

457

458

459

460

461

462

463

464

465

466

467

468

469

470

471

472

473

474

475

476

477

478

479

480

481

# coding: utf-8

# test_diff.py

# This module is part of GitPython and is released under

# the BSD License: https://opensource.org/license/bsd-3-clause/

import ddt

import shutil

import tempfile

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)),

"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)),

"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)),

"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,

)

def test_diff_file_with_colon(self):

output = fixture("diff_file_with_colon")

res = []

Diff._handle_diff_line(output, None, res)

self.assertEqual(len(res), 3)

def test_empty_diff(self):

res = []

Diff._handle_diff_line(b"", None, res)

self.assertEqual(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 completeness - 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])

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)

@with_rw_directory

def test_rename_override(self, rw_dir):

"""Test disabling of diff rename detection"""

# create and commit file_a.txt

repo = Repo.init(rw_dir)

file_a = osp.join(rw_dir, "file_a.txt")

with open(file_a, "w", encoding="utf-8") as outfile:

outfile.write("hello world\n")

repo.git.add(Git.polish_url(file_a))

repo.git.commit(message="Added file_a.txt")

# remove file_a.txt

repo.git.rm(Git.polish_url(file_a))

# create and commit file_b.txt with similarity index of 52

file_b = osp.join(rw_dir, "file_b.txt")

with open(file_b, "w", encoding="utf-8") as outfile:

outfile.write("hello world\nhello world")

repo.git.add(Git.polish_url(file_b))

repo.git.commit(message="Removed file_a.txt. Added file_b.txt")

commit_a = repo.commit("HEAD")

commit_b = repo.commit("HEAD~1")

# check default diff command with renamed files enabled

diffs = commit_b.diff(commit_a)

self.assertEqual(1, len(diffs))

diff = diffs[0]

self.assertEqual(True, diff.renamed_file)

self.assertEqual("file_a.txt", diff.rename_from)

self.assertEqual("file_b.txt", diff.rename_to)

# check diff with rename files disabled

diffs = commit_b.diff(commit_a, no_renames=True)

self.assertEqual(2, len(diffs))

# check fileA.txt deleted

diff = diffs[0]

self.assertEqual(True, diff.deleted_file)

self.assertEqual("file_a.txt", diff.a_path)

# check fileB.txt added

diff = diffs[1]

self.assertEqual(True, diff.new_file)

self.assertEqual("file_b.txt", diff.a_path)

# check diff with high similarity index

diffs = commit_b.diff(commit_a, split_single_char_options=False, M="75%")

self.assertEqual(2, len(diffs))

# check fileA.txt deleted

diff = diffs[0]

self.assertEqual(True, diff.deleted_file)

self.assertEqual("file_a.txt", diff.a_path)

# check fileB.txt added

diff = diffs[1]

self.assertEqual(True, diff.new_file)

self.assertEqual("file_b.txt", diff.a_path)

# check diff with low similarity index

diffs = commit_b.diff(commit_a, split_single_char_options=False, M="40%")

self.assertEqual(1, len(diffs))

diff = diffs[0]

self.assertEqual(True, diff.renamed_file)

self.assertEqual("file_a.txt", diff.rename_from)

self.assertEqual("file_b.txt", diff.rename_to)

GitPython/test/test_diff.py at 3.1.38 · gitpython-developers/GitPython · GitHub

Uh oh!

Uh oh!

GitPython/test/test_diff.py at 3.1.38 · gitpython-developers/GitPython · GitHub

Uh oh!

Uh oh!

Expand file tree

Breadcrumbs

test_diff.py

Latest commit

History

Breadcrumbs

test_diff.py

File metadata and controls