bisect: error out when passing bad path parameters
[git/git.git] / t / t6030-bisect-porcelain.sh
1 #!/bin/sh
2 #
3 # Copyright (c) 2007 Christian Couder
4 #
5 test_description='Tests git bisect functionality'
6
7 exec </dev/null
8
9 . ./test-lib.sh
10
11 add_line_into_file()
12 {
13 _line=$1
14 _file=$2
15
16 if [ -f "$_file" ]; then
17 echo "$_line" >> $_file || return $?
18 MSG="Add <$_line> into <$_file>."
19 else
20 echo "$_line" > $_file || return $?
21 git add $_file || return $?
22 MSG="Create file <$_file> with <$_line> inside."
23 fi
24
25 test_tick
26 git commit --quiet -m "$MSG" $_file
27 }
28
29 HASH1=
30 HASH2=
31 HASH3=
32 HASH4=
33
34 test_expect_success 'set up basic repo with 1 file (hello) and 4 commits' '
35 add_line_into_file "1: Hello World" hello &&
36 HASH1=$(git rev-parse --verify HEAD) &&
37 add_line_into_file "2: A new day for git" hello &&
38 HASH2=$(git rev-parse --verify HEAD) &&
39 add_line_into_file "3: Another new day for git" hello &&
40 HASH3=$(git rev-parse --verify HEAD) &&
41 add_line_into_file "4: Ciao for now" hello &&
42 HASH4=$(git rev-parse --verify HEAD)
43 '
44
45 test_expect_success 'bisect starts with only one bad' '
46 git bisect reset &&
47 git bisect start &&
48 git bisect bad $HASH4 &&
49 git bisect next
50 '
51
52 test_expect_success 'bisect does not start with only one good' '
53 git bisect reset &&
54 git bisect start &&
55 git bisect good $HASH1 || return 1
56
57 if git bisect next
58 then
59 echo Oops, should have failed.
60 false
61 else
62 :
63 fi
64 '
65
66 test_expect_success 'bisect start with one bad and good' '
67 git bisect reset &&
68 git bisect start &&
69 git bisect good $HASH1 &&
70 git bisect bad $HASH4 &&
71 git bisect next
72 '
73
74 test_expect_success 'bisect fails if given any junk instead of revs' '
75 git bisect reset &&
76 test_must_fail git bisect start foo $HASH1 -- &&
77 test_must_fail git bisect start $HASH4 $HASH1 bar -- &&
78 test -z "$(git for-each-ref "refs/bisect/*")" &&
79 test -z "$(ls .git/BISECT_* 2>/dev/null)" &&
80 git bisect start &&
81 test_must_fail git bisect good foo $HASH1 &&
82 test_must_fail git bisect good $HASH1 bar &&
83 test_must_fail git bisect bad frotz &&
84 test_must_fail git bisect bad $HASH3 $HASH4 &&
85 test_must_fail git bisect skip bar $HASH3 &&
86 test_must_fail git bisect skip $HASH1 foo &&
87 test -z "$(git for-each-ref "refs/bisect/*")" &&
88 git bisect good $HASH1 &&
89 git bisect bad $HASH4
90 '
91
92 test_expect_success 'bisect reset: back in the master branch' '
93 git bisect reset &&
94 echo "* master" > branch.expect &&
95 git branch > branch.output &&
96 cmp branch.expect branch.output
97 '
98
99 test_expect_success 'bisect reset: back in another branch' '
100 git checkout -b other &&
101 git bisect start &&
102 git bisect good $HASH1 &&
103 git bisect bad $HASH3 &&
104 git bisect reset &&
105 echo " master" > branch.expect &&
106 echo "* other" >> branch.expect &&
107 git branch > branch.output &&
108 cmp branch.expect branch.output
109 '
110
111 test_expect_success 'bisect reset when not bisecting' '
112 git bisect reset &&
113 git branch > branch.output &&
114 cmp branch.expect branch.output
115 '
116
117 test_expect_success 'bisect reset removes packed refs' '
118 git bisect reset &&
119 git bisect start &&
120 git bisect good $HASH1 &&
121 git bisect bad $HASH3 &&
122 git pack-refs --all --prune &&
123 git bisect next &&
124 git bisect reset &&
125 test -z "$(git for-each-ref "refs/bisect/*")" &&
126 test -z "$(git for-each-ref "refs/heads/bisect")"
127 '
128
129 test_expect_success 'bisect start: back in good branch' '
130 git branch > branch.output &&
131 grep "* other" branch.output > /dev/null &&
132 git bisect start $HASH4 $HASH1 -- &&
133 git bisect good &&
134 git bisect start $HASH4 $HASH1 -- &&
135 git bisect bad &&
136 git bisect reset &&
137 git branch > branch.output &&
138 grep "* other" branch.output > /dev/null
139 '
140
141 test_expect_success 'bisect start: no ".git/BISECT_START" if junk rev' '
142 git bisect start $HASH4 $HASH1 -- &&
143 git bisect good &&
144 test_must_fail git bisect start $HASH4 foo -- &&
145 git branch > branch.output &&
146 grep "* other" branch.output > /dev/null &&
147 test_must_fail test -e .git/BISECT_START
148 '
149
150 test_expect_success 'bisect start: no ".git/BISECT_START" if mistaken rev' '
151 git bisect start $HASH4 $HASH1 -- &&
152 git bisect good &&
153 test_must_fail git bisect start $HASH1 $HASH4 -- &&
154 git branch > branch.output &&
155 grep "* other" branch.output > /dev/null &&
156 test_must_fail test -e .git/BISECT_START
157 '
158
159 test_expect_success 'bisect start: no ".git/BISECT_START" if checkout error' '
160 echo "temp stuff" > hello &&
161 test_must_fail git bisect start $HASH4 $HASH1 -- &&
162 git branch &&
163 git branch > branch.output &&
164 grep "* other" branch.output > /dev/null &&
165 test_must_fail test -e .git/BISECT_START &&
166 test -z "$(git for-each-ref "refs/bisect/*")" &&
167 git checkout HEAD hello
168 '
169
170 # $HASH1 is good, $HASH4 is bad, we skip $HASH3
171 # but $HASH2 is bad,
172 # so we should find $HASH2 as the first bad commit
173 test_expect_success 'bisect skip: successfull result' '
174 git bisect reset &&
175 git bisect start $HASH4 $HASH1 &&
176 git bisect skip &&
177 git bisect bad > my_bisect_log.txt &&
178 grep "$HASH2 is the first bad commit" my_bisect_log.txt &&
179 git bisect reset
180 '
181
182 # $HASH1 is good, $HASH4 is bad, we skip $HASH3 and $HASH2
183 # so we should not be able to tell the first bad commit
184 # among $HASH2, $HASH3 and $HASH4
185 test_expect_success 'bisect skip: cannot tell between 3 commits' '
186 git bisect start $HASH4 $HASH1 &&
187 git bisect skip || return 1
188
189 if git bisect skip > my_bisect_log.txt
190 then
191 echo Oops, should have failed.
192 false
193 else
194 test $? -eq 2 &&
195 grep "first bad commit could be any of" my_bisect_log.txt &&
196 ! grep $HASH1 my_bisect_log.txt &&
197 grep $HASH2 my_bisect_log.txt &&
198 grep $HASH3 my_bisect_log.txt &&
199 grep $HASH4 my_bisect_log.txt &&
200 git bisect reset
201 fi
202 '
203
204 # $HASH1 is good, $HASH4 is bad, we skip $HASH3
205 # but $HASH2 is good,
206 # so we should not be able to tell the first bad commit
207 # among $HASH3 and $HASH4
208 test_expect_success 'bisect skip: cannot tell between 2 commits' '
209 git bisect start $HASH4 $HASH1 &&
210 git bisect skip || return 1
211
212 if git bisect good > my_bisect_log.txt
213 then
214 echo Oops, should have failed.
215 false
216 else
217 test $? -eq 2 &&
218 grep "first bad commit could be any of" my_bisect_log.txt &&
219 ! grep $HASH1 my_bisect_log.txt &&
220 ! grep $HASH2 my_bisect_log.txt &&
221 grep $HASH3 my_bisect_log.txt &&
222 grep $HASH4 my_bisect_log.txt &&
223 git bisect reset
224 fi
225 '
226
227 # $HASH1 is good, $HASH4 is both skipped and bad, we skip $HASH3
228 # and $HASH2 is good,
229 # so we should not be able to tell the first bad commit
230 # among $HASH3 and $HASH4
231 test_expect_success 'bisect skip: with commit both bad and skipped' '
232 git bisect start &&
233 git bisect skip &&
234 git bisect bad &&
235 git bisect good $HASH1 &&
236 git bisect skip &&
237 if git bisect good > my_bisect_log.txt
238 then
239 echo Oops, should have failed.
240 false
241 else
242 test $? -eq 2 &&
243 grep "first bad commit could be any of" my_bisect_log.txt &&
244 ! grep $HASH1 my_bisect_log.txt &&
245 ! grep $HASH2 my_bisect_log.txt &&
246 grep $HASH3 my_bisect_log.txt &&
247 grep $HASH4 my_bisect_log.txt &&
248 git bisect reset
249 fi
250 '
251
252 # We want to automatically find the commit that
253 # introduced "Another" into hello.
254 test_expect_success \
255 '"git bisect run" simple case' \
256 'echo "#"\!"/bin/sh" > test_script.sh &&
257 echo "grep Another hello > /dev/null" >> test_script.sh &&
258 echo "test \$? -ne 0" >> test_script.sh &&
259 chmod +x test_script.sh &&
260 git bisect start &&
261 git bisect good $HASH1 &&
262 git bisect bad $HASH4 &&
263 git bisect run ./test_script.sh > my_bisect_log.txt &&
264 grep "$HASH3 is the first bad commit" my_bisect_log.txt &&
265 git bisect reset'
266
267 # We want to automatically find the commit that
268 # introduced "Ciao" into hello.
269 test_expect_success \
270 '"git bisect run" with more complex "git bisect start"' \
271 'echo "#"\!"/bin/sh" > test_script.sh &&
272 echo "grep Ciao hello > /dev/null" >> test_script.sh &&
273 echo "test \$? -ne 0" >> test_script.sh &&
274 chmod +x test_script.sh &&
275 git bisect start $HASH4 $HASH1 &&
276 git bisect run ./test_script.sh > my_bisect_log.txt &&
277 grep "$HASH4 is the first bad commit" my_bisect_log.txt &&
278 git bisect reset'
279
280 # $HASH1 is good, $HASH5 is bad, we skip $HASH3
281 # but $HASH4 is good,
282 # so we should find $HASH5 as the first bad commit
283 HASH5=
284 test_expect_success 'bisect skip: add line and then a new test' '
285 add_line_into_file "5: Another new line." hello &&
286 HASH5=$(git rev-parse --verify HEAD) &&
287 git bisect start $HASH5 $HASH1 &&
288 git bisect skip &&
289 git bisect good > my_bisect_log.txt &&
290 grep "$HASH5 is the first bad commit" my_bisect_log.txt &&
291 git bisect log > log_to_replay.txt &&
292 git bisect reset
293 '
294
295 test_expect_success 'bisect skip and bisect replay' '
296 git bisect replay log_to_replay.txt > my_bisect_log.txt &&
297 grep "$HASH5 is the first bad commit" my_bisect_log.txt &&
298 git bisect reset
299 '
300
301 HASH6=
302 test_expect_success 'bisect run & skip: cannot tell between 2' '
303 add_line_into_file "6: Yet a line." hello &&
304 HASH6=$(git rev-parse --verify HEAD) &&
305 echo "#"\!"/bin/sh" > test_script.sh &&
306 echo "sed -ne \\\$p hello | grep Ciao > /dev/null && exit 125" >> test_script.sh &&
307 echo "grep line hello > /dev/null" >> test_script.sh &&
308 echo "test \$? -ne 0" >> test_script.sh &&
309 chmod +x test_script.sh &&
310 git bisect start $HASH6 $HASH1 &&
311 if git bisect run ./test_script.sh > my_bisect_log.txt
312 then
313 echo Oops, should have failed.
314 false
315 else
316 test $? -eq 2 &&
317 grep "first bad commit could be any of" my_bisect_log.txt &&
318 ! grep $HASH3 my_bisect_log.txt &&
319 ! grep $HASH6 my_bisect_log.txt &&
320 grep $HASH4 my_bisect_log.txt &&
321 grep $HASH5 my_bisect_log.txt
322 fi
323 '
324
325 HASH7=
326 test_expect_success 'bisect run & skip: find first bad' '
327 git bisect reset &&
328 add_line_into_file "7: Should be the last line." hello &&
329 HASH7=$(git rev-parse --verify HEAD) &&
330 echo "#"\!"/bin/sh" > test_script.sh &&
331 echo "sed -ne \\\$p hello | grep Ciao > /dev/null && exit 125" >> test_script.sh &&
332 echo "sed -ne \\\$p hello | grep day > /dev/null && exit 125" >> test_script.sh &&
333 echo "grep Yet hello > /dev/null" >> test_script.sh &&
334 echo "test \$? -ne 0" >> test_script.sh &&
335 chmod +x test_script.sh &&
336 git bisect start $HASH7 $HASH1 &&
337 git bisect run ./test_script.sh > my_bisect_log.txt &&
338 grep "$HASH6 is the first bad commit" my_bisect_log.txt
339 '
340
341 test_expect_success 'bisect skip only one range' '
342 git bisect reset &&
343 git bisect start $HASH7 $HASH1 &&
344 git bisect skip $HASH1..$HASH5 &&
345 test "$HASH6" = "$(git rev-parse --verify HEAD)" &&
346 test_must_fail git bisect bad > my_bisect_log.txt &&
347 grep "first bad commit could be any of" my_bisect_log.txt
348 '
349
350 test_expect_success 'bisect skip many ranges' '
351 git bisect start $HASH7 $HASH1 &&
352 test "$HASH4" = "$(git rev-parse --verify HEAD)" &&
353 git bisect skip $HASH2 $HASH2.. ..$HASH5 &&
354 test "$HASH6" = "$(git rev-parse --verify HEAD)" &&
355 test_must_fail git bisect bad > my_bisect_log.txt &&
356 grep "first bad commit could be any of" my_bisect_log.txt
357 '
358
359 test_expect_success 'bisect starting with a detached HEAD' '
360 git bisect reset &&
361 git checkout master^ &&
362 HEAD=$(git rev-parse --verify HEAD) &&
363 git bisect start &&
364 test $HEAD = $(cat .git/BISECT_START) &&
365 git bisect reset &&
366 test $HEAD = $(git rev-parse --verify HEAD)
367 '
368
369 test_expect_success 'bisect errors out if bad and good are mistaken' '
370 git bisect reset &&
371 test_must_fail git bisect start $HASH2 $HASH4 2> rev_list_error &&
372 grep "mistake good and bad" rev_list_error &&
373 git bisect reset
374 '
375
376 test_expect_success 'bisect does not create a "bisect" branch' '
377 git bisect reset &&
378 git bisect start $HASH7 $HASH1 &&
379 git branch bisect &&
380 rev_hash4=$(git rev-parse --verify HEAD) &&
381 test "$rev_hash4" = "$HASH4" &&
382 git branch -D bisect &&
383 git bisect good &&
384 git branch bisect &&
385 rev_hash6=$(git rev-parse --verify HEAD) &&
386 test "$rev_hash6" = "$HASH6" &&
387 git bisect good > my_bisect_log.txt &&
388 grep "$HASH7 is the first bad commit" my_bisect_log.txt &&
389 git bisect reset &&
390 rev_hash6=$(git rev-parse --verify bisect) &&
391 test "$rev_hash6" = "$HASH6" &&
392 git branch -D bisect
393 '
394
395 # This creates a "side" branch to test "siblings" cases.
396 #
397 # H1-H2-H3-H4-H5-H6-H7 <--other
398 # \
399 # S5-S6-S7 <--side
400 #
401 test_expect_success 'side branch creation' '
402 git bisect reset &&
403 git checkout -b side $HASH4 &&
404 add_line_into_file "5(side): first line on a side branch" hello2 &&
405 SIDE_HASH5=$(git rev-parse --verify HEAD) &&
406 add_line_into_file "6(side): second line on a side branch" hello2 &&
407 SIDE_HASH6=$(git rev-parse --verify HEAD) &&
408 add_line_into_file "7(side): third line on a side branch" hello2 &&
409 SIDE_HASH7=$(git rev-parse --verify HEAD)
410 '
411
412 test_expect_success 'good merge base when good and bad are siblings' '
413 git bisect start "$HASH7" "$SIDE_HASH7" > my_bisect_log.txt &&
414 grep "merge base must be tested" my_bisect_log.txt &&
415 grep $HASH4 my_bisect_log.txt &&
416 git bisect good > my_bisect_log.txt &&
417 test_must_fail grep "merge base must be tested" my_bisect_log.txt &&
418 grep $HASH6 my_bisect_log.txt &&
419 git bisect reset
420 '
421 test_expect_success 'skipped merge base when good and bad are siblings' '
422 git bisect start "$SIDE_HASH7" "$HASH7" > my_bisect_log.txt &&
423 grep "merge base must be tested" my_bisect_log.txt &&
424 grep $HASH4 my_bisect_log.txt &&
425 git bisect skip > my_bisect_log.txt 2>&1 &&
426 grep "Warning" my_bisect_log.txt &&
427 grep $SIDE_HASH6 my_bisect_log.txt &&
428 git bisect reset
429 '
430
431 test_expect_success 'bad merge base when good and bad are siblings' '
432 git bisect start "$HASH7" HEAD > my_bisect_log.txt &&
433 grep "merge base must be tested" my_bisect_log.txt &&
434 grep $HASH4 my_bisect_log.txt &&
435 test_must_fail git bisect bad > my_bisect_log.txt 2>&1 &&
436 grep "merge base $HASH4 is bad" my_bisect_log.txt &&
437 grep "fixed between $HASH4 and \[$SIDE_HASH7\]" my_bisect_log.txt &&
438 git bisect reset
439 '
440
441 # This creates a few more commits (A and B) to test "siblings" cases
442 # when a good and a bad rev have many merge bases.
443 #
444 # We should have the following:
445 #
446 # H1-H2-H3-H4-H5-H6-H7
447 # \ \ \
448 # S5-A \
449 # \ \
450 # S6-S7----B
451 #
452 # And there A and B have 2 merge bases (S5 and H5) that should be
453 # reported by "git merge-base --all A B".
454 #
455 test_expect_success 'many merge bases creation' '
456 git checkout "$SIDE_HASH5" &&
457 git merge -m "merge HASH5 and SIDE_HASH5" "$HASH5" &&
458 A_HASH=$(git rev-parse --verify HEAD) &&
459 git checkout side &&
460 git merge -m "merge HASH7 and SIDE_HASH7" "$HASH7" &&
461 B_HASH=$(git rev-parse --verify HEAD) &&
462 git merge-base --all "$A_HASH" "$B_HASH" > merge_bases.txt &&
463 test $(wc -l < merge_bases.txt) = "2" &&
464 grep "$HASH5" merge_bases.txt &&
465 grep "$SIDE_HASH5" merge_bases.txt
466 '
467
468 test_expect_success 'good merge bases when good and bad are siblings' '
469 git bisect start "$B_HASH" "$A_HASH" > my_bisect_log.txt &&
470 grep "merge base must be tested" my_bisect_log.txt &&
471 git bisect good > my_bisect_log2.txt &&
472 grep "merge base must be tested" my_bisect_log2.txt &&
473 {
474 {
475 grep "$SIDE_HASH5" my_bisect_log.txt &&
476 grep "$HASH5" my_bisect_log2.txt
477 } || {
478 grep "$SIDE_HASH5" my_bisect_log2.txt &&
479 grep "$HASH5" my_bisect_log.txt
480 }
481 } &&
482 git bisect reset
483 '
484
485 test_expect_success 'optimized merge base checks' '
486 git bisect start "$HASH7" "$SIDE_HASH7" > my_bisect_log.txt &&
487 grep "merge base must be tested" my_bisect_log.txt &&
488 grep "$HASH4" my_bisect_log.txt &&
489 git bisect good > my_bisect_log2.txt &&
490 test -f ".git/BISECT_ANCESTORS_OK" &&
491 test "$HASH6" = $(git rev-parse --verify HEAD) &&
492 git bisect bad > my_bisect_log3.txt &&
493 git bisect good "$A_HASH" > my_bisect_log4.txt &&
494 grep "merge base must be tested" my_bisect_log4.txt &&
495 test_must_fail test -f ".git/BISECT_ANCESTORS_OK"
496 '
497
498 # This creates another side branch called "parallel" with some files
499 # in some directories, to test bisecting with paths.
500 #
501 # We should have the following:
502 #
503 # P1-P2-P3-P4-P5-P6-P7
504 # / / /
505 # H1-H2-H3-H4-H5-H6-H7
506 # \ \ \
507 # S5-A \
508 # \ \
509 # S6-S7----B
510 #
511 test_expect_success '"parallel" side branch creation' '
512 git bisect reset &&
513 git checkout -b parallel $HASH1 &&
514 mkdir dir1 dir2 &&
515 add_line_into_file "1(para): line 1 on parallel branch" dir1/file1 &&
516 PARA_HASH1=$(git rev-parse --verify HEAD) &&
517 add_line_into_file "2(para): line 2 on parallel branch" dir2/file2 &&
518 PARA_HASH2=$(git rev-parse --verify HEAD) &&
519 add_line_into_file "3(para): line 3 on parallel branch" dir2/file3 &&
520 PARA_HASH3=$(git rev-parse --verify HEAD)
521 git merge -m "merge HASH4 and PARA_HASH3" "$HASH4" &&
522 PARA_HASH4=$(git rev-parse --verify HEAD)
523 add_line_into_file "5(para): add line on parallel branch" dir1/file1 &&
524 PARA_HASH5=$(git rev-parse --verify HEAD)
525 add_line_into_file "6(para): add line on parallel branch" dir2/file2 &&
526 PARA_HASH6=$(git rev-parse --verify HEAD)
527 git merge -m "merge HASH7 and PARA_HASH6" "$HASH7" &&
528 PARA_HASH7=$(git rev-parse --verify HEAD)
529 '
530
531 test_expect_success 'restricting bisection on one dir' '
532 git bisect reset &&
533 git bisect start HEAD $HASH1 -- dir1 &&
534 para1=$(git rev-parse --verify HEAD) &&
535 test "$para1" = "$PARA_HASH1" &&
536 git bisect bad > my_bisect_log.txt &&
537 grep "$PARA_HASH1 is the first bad commit" my_bisect_log.txt
538 '
539
540 test_expect_success 'restricting bisection on one dir and a file' '
541 git bisect reset &&
542 git bisect start HEAD $HASH1 -- dir1 hello &&
543 para4=$(git rev-parse --verify HEAD) &&
544 test "$para4" = "$PARA_HASH4" &&
545 git bisect bad &&
546 hash3=$(git rev-parse --verify HEAD) &&
547 test "$hash3" = "$HASH3" &&
548 git bisect good &&
549 hash4=$(git rev-parse --verify HEAD) &&
550 test "$hash4" = "$HASH4" &&
551 git bisect good &&
552 para1=$(git rev-parse --verify HEAD) &&
553 test "$para1" = "$PARA_HASH1" &&
554 git bisect good > my_bisect_log.txt &&
555 grep "$PARA_HASH4 is the first bad commit" my_bisect_log.txt
556 '
557
558 test_expect_success 'skipping away from skipped commit' '
559 git bisect start $PARA_HASH7 $HASH1 &&
560 para4=$(git rev-parse --verify HEAD) &&
561 test "$para4" = "$PARA_HASH4" &&
562 git bisect skip &&
563 hash7=$(git rev-parse --verify HEAD) &&
564 test "$hash7" = "$HASH7" &&
565 git bisect skip &&
566 para3=$(git rev-parse --verify HEAD) &&
567 test "$para3" = "$PARA_HASH3"
568 '
569
570 test_expect_success 'erroring out when using bad path parameters' '
571 test_must_fail git bisect start $PARA_HASH7 $HASH1 -- foobar 2> error.txt &&
572 grep "bad path parameters" error.txt
573 '
574
575 #
576 #
577 test_done