t/t3701-add-interactive.sh

   1 #!/bin/sh
   2
   3 test_description='add -i basic tests'
   4 . ./test-lib.sh
   5 . "$TEST_DIRECTORY"/lib-terminal.sh
   6
   7 if ! test_have_prereq PERL
   8 then
   9         skip_all='skipping add -i tests, perl not available'
  10         test_done
  11 fi
  12
  13 diff_cmp () {
  14         for x
  15         do
  16                 sed  -e '/^index/s/[0-9a-f]*[1-9a-f][0-9a-f]*\.\./1234567../' \
  17                      -e '/^index/s/\.\.[0-9a-f]*[1-9a-f][0-9a-f]*/..9abcdef/' \
  18                      -e '/^index/s/ 00*\.\./ 0000000../' \
  19                      -e '/^index/s/\.\.00*$/..0000000/' \
  20                      -e '/^index/s/\.\.00* /..0000000 /' \
  21                      "$x" >"$x.filtered"
  22         done
  23         test_cmp "$1.filtered" "$2.filtered"
  24 }
  25
  26 # This function uses a trick to manipulate the interactive add to use color:
  27 # the `want_color()` function special-cases the situation where a pager was
  28 # spawned and Git now wants to output colored text: to detect that situation,
  29 # the environment variable `GIT_PAGER_IN_USE` is set. However, color is
  30 # suppressed despite that environment variable if the `TERM` variable
  31 # indicates a dumb terminal, so we set that variable, too.
  32
  33 force_color () {
  34         env GIT_PAGER_IN_USE=true TERM=vt100 "$@"
  35 }
  36
  37 test_expect_success 'setup (initial)' '
  38         echo content >file &&
  39         git add file &&
  40         echo more >>file &&
  41         echo lines >>file
  42 '
  43 test_expect_success 'status works (initial)' '
  44         git add -i </dev/null >output &&
  45         grep "+1/-0 *+2/-0 file" output
  46 '
  47
  48 test_expect_success 'setup expected' '
  49         cat >expected <<-\EOF
  50         new file mode 100644
  51         index 0000000..d95f3ad
  52         --- /dev/null
  53         +++ b/file
  54         @@ -0,0 +1 @@
  55         +content
  56         EOF
  57 '
  58
  59 test_expect_success 'diff works (initial)' '
  60         test_write_lines d 1 | git add -i >output &&
  61         sed -ne "/new file/,/content/p" <output >diff &&
  62         diff_cmp expected diff
  63 '
  64 test_expect_success 'revert works (initial)' '
  65         git add file &&
  66         test_write_lines r 1 | git add -i &&
  67         git ls-files >output &&
  68         ! grep . output
  69 '
  70
  71 test_expect_success 'add untracked (multiple)' '
  72         test_when_finished "git reset && rm [1-9]" &&
  73         touch $(test_seq 9) &&
  74         test_write_lines a "2-5 8-" | git add -i -- [1-9] &&
  75         test_write_lines 2 3 4 5 8 9 >expected &&
  76         git ls-files [1-9] >output &&
  77         test_cmp expected output
  78 '
  79
  80 test_expect_success 'setup (commit)' '
  81         echo baseline >file &&
  82         git add file &&
  83         git commit -m commit &&
  84         echo content >>file &&
  85         git add file &&
  86         echo more >>file &&
  87         echo lines >>file
  88 '
  89 test_expect_success 'status works (commit)' '
  90         git add -i </dev/null >output &&
  91         grep "+1/-0 *+2/-0 file" output
  92 '
  93
  94 test_expect_success 'setup expected' '
  95         cat >expected <<-\EOF
  96         index 180b47c..b6f2c08 100644
  97         --- a/file
  98         +++ b/file
  99         @@ -1 +1,2 @@
 100          baseline
 101         +content
 102         EOF
 103 '
 104
 105 test_expect_success 'diff works (commit)' '
 106         test_write_lines d 1 | git add -i >output &&
 107         sed -ne "/^index/,/content/p" <output >diff &&
 108         diff_cmp expected diff
 109 '
 110 test_expect_success 'revert works (commit)' '
 111         git add file &&
 112         test_write_lines r 1 | git add -i &&
 113         git add -i </dev/null >output &&
 114         grep "unchanged *+3/-0 file" output
 115 '
 116
 117 test_expect_success 'setup expected' '
 118         cat >expected <<-\EOF
 119         EOF
 120 '
 121
 122 test_expect_success 'dummy edit works' '
 123         test_set_editor : &&
 124         test_write_lines e a | git add -p &&
 125         git diff > diff &&
 126         diff_cmp expected diff
 127 '
 128
 129 test_expect_success 'setup patch' '
 130         cat >patch <<-\EOF
 131         @@ -1,1 +1,4 @@
 132          this
 133         +patch
 134         -does not
 135          apply
 136         EOF
 137 '
 138
 139 test_expect_success 'setup fake editor' '
 140         write_script "fake_editor.sh" <<-\EOF &&
 141         mv -f "$1" oldpatch &&
 142         mv -f patch "$1"
 143         EOF
 144         test_set_editor "$(pwd)/fake_editor.sh"
 145 '
 146
 147 test_expect_success 'bad edit rejected' '
 148         git reset &&
 149         test_write_lines e n d | git add -p >output &&
 150         grep "hunk does not apply" output
 151 '
 152
 153 test_expect_success 'setup patch' '
 154         cat >patch <<-\EOF
 155         this patch
 156         is garbage
 157         EOF
 158 '
 159
 160 test_expect_success 'garbage edit rejected' '
 161         git reset &&
 162         test_write_lines e n d | git add -p >output &&
 163         grep "hunk does not apply" output
 164 '
 165
 166 test_expect_success 'setup patch' '
 167         cat >patch <<-\EOF
 168         @@ -1,0 +1,0 @@
 169          baseline
 170         +content
 171         +newcontent
 172         +lines
 173         EOF
 174 '
 175
 176 test_expect_success 'setup expected' '
 177         cat >expected <<-\EOF
 178         diff --git a/file b/file
 179         index b5dd6c9..f910ae9 100644
 180         --- a/file
 181         +++ b/file
 182         @@ -1,4 +1,4 @@
 183          baseline
 184          content
 185         -newcontent
 186         +more
 187          lines
 188         EOF
 189 '
 190
 191 test_expect_success 'real edit works' '
 192         test_write_lines e n d | git add -p &&
 193         git diff >output &&
 194         diff_cmp expected output
 195 '
 196
 197 test_expect_success 'setup file' '
 198         test_write_lines a "" b "" c >file &&
 199         git add file &&
 200         test_write_lines a "" d "" c >file
 201 '
 202
 203 test_expect_success 'setup patch' '
 204         SP=" " &&
 205         NULL="" &&
 206         cat >patch <<-EOF
 207         @@ -1,4 +1,4 @@
 208          a
 209         $NULL
 210         -b
 211         +f
 212         $SP
 213         c
 214         EOF
 215 '
 216
 217 test_expect_success 'setup expected' '
 218         cat >expected <<-EOF
 219         diff --git a/file b/file
 220         index b5dd6c9..f910ae9 100644
 221         --- a/file
 222         +++ b/file
 223         @@ -1,5 +1,5 @@
 224          a
 225         $SP
 226         -f
 227         +d
 228         $SP
 229          c
 230         EOF
 231 '
 232
 233 test_expect_success 'edit can strip spaces from empty context lines' '
 234         test_write_lines e n q | git add -p 2>error &&
 235         test_must_be_empty error &&
 236         git diff >output &&
 237         diff_cmp expected output
 238 '
 239
 240 test_expect_success 'skip files similarly as commit -a' '
 241         git reset &&
 242         echo file >.gitignore &&
 243         echo changed >file &&
 244         echo y | git add -p file &&
 245         git diff >output &&
 246         git reset &&
 247         git commit -am commit &&
 248         git diff >expected &&
 249         diff_cmp expected output &&
 250         git reset --hard HEAD^
 251 '
 252 rm -f .gitignore
 253
 254 test_expect_success FILEMODE 'patch does not affect mode' '
 255         git reset --hard &&
 256         echo content >>file &&
 257         chmod +x file &&
 258         printf "n\\ny\\n" | git add -p &&
 259         git show :file | grep content &&
 260         git diff file | grep "new mode"
 261 '
 262
 263 test_expect_success FILEMODE 'stage mode but not hunk' '
 264         git reset --hard &&
 265         echo content >>file &&
 266         chmod +x file &&
 267         printf "y\\nn\\n" | git add -p &&
 268         git diff --cached file | grep "new mode" &&
 269         git diff          file | grep "+content"
 270 '
 271
 272
 273 test_expect_success FILEMODE 'stage mode and hunk' '
 274         git reset --hard &&
 275         echo content >>file &&
 276         chmod +x file &&
 277         printf "y\\ny\\n" | git add -p &&
 278         git diff --cached file | grep "new mode" &&
 279         git diff --cached file | grep "+content" &&
 280         test -z "$(git diff file)"
 281 '
 282
 283 # end of tests disabled when filemode is not usable
 284
 285 test_expect_success 'different prompts for mode change/deleted' '
 286         git reset --hard &&
 287         >file &&
 288         >deleted &&
 289         git add --chmod=+x file deleted &&
 290         echo changed >file &&
 291         rm deleted &&
 292         test_write_lines n n n |
 293         git -c core.filemode=true add -p >actual &&
 294         sed -n "s/^\(([0-9/]*) Stage .*?\).*/\1/p" actual >actual.filtered &&
 295         cat >expect <<-\EOF &&
 296         (1/1) Stage deletion [y,n,q,a,d,?]?
 297         (1/2) Stage mode change [y,n,q,a,d,j,J,g,/,?]?
 298         (2/2) Stage this hunk [y,n,q,a,d,K,g,/,e,?]?
 299         EOF
 300         test_cmp expect actual.filtered
 301 '
 302
 303 test_expect_success 'correct message when there is nothing to do' '
 304         git reset --hard &&
 305         git add -p 2>err &&
 306         test_i18ngrep "No changes" err &&
 307         printf "\\0123" >binary &&
 308         git add binary &&
 309         printf "\\0abc" >binary &&
 310         git add -p 2>err &&
 311         test_i18ngrep "Only binary files changed" err
 312 '
 313
 314 test_expect_success 'setup again' '
 315         git reset --hard &&
 316         test_chmod +x file &&
 317         echo content >>file
 318 '
 319
 320 # Write the patch file with a new line at the top and bottom
 321 test_expect_success 'setup patch' '
 322         cat >patch <<-\EOF
 323         index 180b47c..b6f2c08 100644
 324         --- a/file
 325         +++ b/file
 326         @@ -1,2 +1,4 @@
 327         +firstline
 328          baseline
 329          content
 330         +lastline
 331         \ No newline at end of file
 332         EOF
 333 '
 334
 335 # Expected output, diff is similar to the patch but w/ diff at the top
 336 test_expect_success 'setup expected' '
 337         echo diff --git a/file b/file >expected &&
 338         cat patch |sed "/^index/s/ 100644/ 100755/" >>expected &&
 339         cat >expected-output <<-\EOF
 340         --- a/file
 341         +++ b/file
 342         @@ -1,2 +1,4 @@
 343         +firstline
 344          baseline
 345          content
 346         +lastline
 347         \ No newline at end of file
 348         @@ -1,2 +1,3 @@
 349         +firstline
 350          baseline
 351          content
 352         @@ -1,2 +2,3 @@
 353          baseline
 354          content
 355         +lastline
 356         \ No newline at end of file
 357         EOF
 358 '
 359
 360 # Test splitting the first patch, then adding both
 361 test_expect_success C_LOCALE_OUTPUT 'add first line works' '
 362         git commit -am "clear local changes" &&
 363         git apply patch &&
 364         printf "%s\n" s y y | git add -p file 2>error |
 365                 sed -n -e "s/^([1-2]\/[1-2]) Stage this hunk[^@]*\(@@ .*\)/\1/" \
 366                        -e "/^[-+@ \\\\]"/p  >output &&
 367         test_must_be_empty error &&
 368         git diff --cached >diff &&
 369         diff_cmp expected diff &&
 370         test_cmp expected-output output
 371 '
 372
 373 test_expect_success 'setup expected' '
 374         cat >expected <<-\EOF
 375         diff --git a/non-empty b/non-empty
 376         deleted file mode 100644
 377         index d95f3ad..0000000
 378         --- a/non-empty
 379         +++ /dev/null
 380         @@ -1 +0,0 @@
 381         -content
 382         EOF
 383 '
 384
 385 test_expect_success 'deleting a non-empty file' '
 386         git reset --hard &&
 387         echo content >non-empty &&
 388         git add non-empty &&
 389         git commit -m non-empty &&
 390         rm non-empty &&
 391         echo y | git add -p non-empty &&
 392         git diff --cached >diff &&
 393         diff_cmp expected diff
 394 '
 395
 396 test_expect_success 'setup expected' '
 397         cat >expected <<-\EOF
 398         diff --git a/empty b/empty
 399         deleted file mode 100644
 400         index e69de29..0000000
 401         EOF
 402 '
 403
 404 test_expect_success 'deleting an empty file' '
 405         git reset --hard &&
 406         > empty &&
 407         git add empty &&
 408         git commit -m empty &&
 409         rm empty &&
 410         echo y | git add -p empty &&
 411         git diff --cached >diff &&
 412         diff_cmp expected diff
 413 '
 414
 415 test_expect_success 'split hunk setup' '
 416         git reset --hard &&
 417         test_write_lines 10 20 30 40 50 60 >test &&
 418         git add test &&
 419         test_tick &&
 420         git commit -m test &&
 421
 422         test_write_lines 10 15 20 21 22 23 24 30 40 50 60 >test
 423 '
 424
 425 test_expect_success 'goto hunk' '
 426         test_when_finished "git reset" &&
 427         tr _ " " >expect <<-EOF &&
 428         (2/2) Stage this hunk [y,n,q,a,d,K,g,/,e,?]? + 1:  -1,2 +1,3          +15
 429         _ 2:  -2,4 +3,8          +21
 430         go to which hunk? @@ -1,2 +1,3 @@
 431         _10
 432         +15
 433         _20
 434         (1/2) Stage this hunk [y,n,q,a,d,j,J,g,/,e,?]?_
 435         EOF
 436         test_write_lines s y g 1 | git add -p >actual &&
 437         tail -n 7 <actual >actual.trimmed &&
 438         test_cmp expect actual.trimmed
 439 '
 440
 441 test_expect_success 'navigate to hunk via regex' '
 442         test_when_finished "git reset" &&
 443         tr _ " " >expect <<-EOF &&
 444         (2/2) Stage this hunk [y,n,q,a,d,K,g,/,e,?]? @@ -1,2 +1,3 @@
 445         _10
 446         +15
 447         _20
 448         (1/2) Stage this hunk [y,n,q,a,d,j,J,g,/,e,?]?_
 449         EOF
 450         test_write_lines s y /1,2 | git add -p >actual &&
 451         tail -n 5 <actual >actual.trimmed &&
 452         test_cmp expect actual.trimmed
 453 '
 454
 455 test_expect_success 'split hunk "add -p (edit)"' '
 456         # Split, say Edit and do nothing.  Then:
 457         #
 458         # 1. Broken version results in a patch that does not apply and
 459         # only takes [y/n] (edit again) so the first q is discarded
 460         # and then n attempts to discard the edit. Repeat q enough
 461         # times to get out.
 462         #
 463         # 2. Correct version applies the (not)edited version, and asks
 464         #    about the next hunk, against which we say q and program
 465         #    exits.
 466         printf "%s\n" s e     q n q q |
 467         EDITOR=: git add -p &&
 468         git diff >actual &&
 469         ! grep "^+15" actual
 470 '
 471
 472 test_expect_failure 'split hunk "add -p (no, yes, edit)"' '
 473         test_write_lines 5 10 20 21 30 31 40 50 60 >test &&
 474         git reset &&
 475         # test sequence is s(plit), n(o), y(es), e(dit)
 476         # q n q q is there to make sure we exit at the end.
 477         printf "%s\n" s n y e   q n q q |
 478         EDITOR=: git add -p 2>error &&
 479         test_must_be_empty error &&
 480         git diff >actual &&
 481         ! grep "^+31" actual
 482 '
 483
 484 test_expect_success 'split hunk with incomplete line at end' '
 485         git reset --hard &&
 486         printf "missing LF" >>test &&
 487         git add test &&
 488         test_write_lines before 10 20 30 40 50 60 70 >test &&
 489         git grep --cached missing &&
 490         test_write_lines s n y q | git add -p &&
 491         test_must_fail git grep --cached missing &&
 492         git grep before &&
 493         test_must_fail git grep --cached before
 494 '
 495
 496 test_expect_failure 'edit, adding lines to the first hunk' '
 497         test_write_lines 10 11 20 30 40 50 51 60 >test &&
 498         git reset &&
 499         tr _ " " >patch <<-EOF &&
 500         @@ -1,5 +1,6 @@
 501         _10
 502         +11
 503         +12
 504         _20
 505         +21
 506         +22
 507         _30
 508         EOF
 509         # test sequence is s(plit), e(dit), n(o)
 510         # q n q q is there to make sure we exit at the end.
 511         printf "%s\n" s e n   q n q q |
 512         EDITOR=./fake_editor.sh git add -p 2>error &&
 513         test_must_be_empty error &&
 514         git diff --cached >actual &&
 515         grep "^+22" actual
 516 '
 517
 518 test_expect_success 'patch mode ignores unmerged entries' '
 519         git reset --hard &&
 520         test_commit conflict &&
 521         test_commit non-conflict &&
 522         git checkout -b side &&
 523         test_commit side conflict.t &&
 524         git checkout master &&
 525         test_commit master conflict.t &&
 526         test_must_fail git merge side &&
 527         echo changed >non-conflict.t &&
 528         echo y | git add -p >output &&
 529         ! grep a/conflict.t output &&
 530         cat >expected <<-\EOF &&
 531         * Unmerged path conflict.t
 532         diff --git a/non-conflict.t b/non-conflict.t
 533         index f766221..5ea2ed4 100644
 534         --- a/non-conflict.t
 535         +++ b/non-conflict.t
 536         @@ -1 +1 @@
 537         -non-conflict
 538         +changed
 539         EOF
 540         git diff --cached >diff &&
 541         diff_cmp expected diff
 542 '
 543
 544 test_expect_success 'diffs can be colorized' '
 545         git reset --hard &&
 546
 547         echo content >test &&
 548         printf y >y &&
 549         force_color git add -p >output 2>&1 <y &&
 550
 551         # We do not want to depend on the exact coloring scheme
 552         # git uses for diffs, so just check that we saw some kind of color.
 553         grep "$(printf "\\033")" output
 554 '
 555
 556 test_expect_success 'colorized diffs respect diff.wsErrorHighlight' '
 557         git reset --hard &&
 558
 559         echo "old " >test &&
 560         git add test &&
 561         echo "new " >test &&
 562
 563         printf y >y &&
 564         force_color git -c diff.wsErrorHighlight=all add -p >output.raw 2>&1 <y &&
 565         test_decode_color <output.raw >output &&
 566         grep "old<" output
 567 '
 568
 569 test_expect_success 'diffFilter filters diff' '
 570         git reset --hard &&
 571
 572         echo content >test &&
 573         test_config interactive.diffFilter "sed s/^/foo:/" &&
 574         printf y >y &&
 575         force_color git add -p >output 2>&1 <y &&
 576
 577         # avoid depending on the exact coloring or content of the prompts,
 578         # and just make sure we saw our diff prefixed
 579         grep foo:.*content output
 580 '
 581
 582 test_expect_success 'detect bogus diffFilter output' '
 583         git reset --hard &&
 584
 585         echo content >test &&
 586         test_config interactive.diffFilter "sed 1d" &&
 587         printf y >y &&
 588         test_must_fail force_color git add -p <y
 589 '
 590
 591 test_expect_success 'diff.algorithm is passed to `git diff-files`' '
 592         git reset --hard &&
 593
 594         >file &&
 595         git add file &&
 596         echo changed >file &&
 597         test_must_fail git -c diff.algorithm=bogus add -p 2>err &&
 598         test_i18ngrep "error: option diff-algorithm accepts " err
 599 '
 600
 601 test_expect_success 'patch-mode via -i prompts for files' '
 602         git reset --hard &&
 603
 604         echo one >file &&
 605         echo two >test &&
 606         git add -i <<-\EOF &&
 607         patch
 608         test
 609
 610         y
 611         quit
 612         EOF
 613
 614         echo test >expect &&
 615         git diff --cached --name-only >actual &&
 616         diff_cmp expect actual
 617 '
 618
 619 test_expect_success 'add -p handles globs' '
 620         git reset --hard &&
 621
 622         mkdir -p subdir &&
 623         echo base >one.c &&
 624         echo base >subdir/two.c &&
 625         git add "*.c" &&
 626         git commit -m base &&
 627
 628         echo change >one.c &&
 629         echo change >subdir/two.c &&
 630         git add -p "*.c" <<-\EOF &&
 631         y
 632         y
 633         EOF
 634
 635         cat >expect <<-\EOF &&
 636         one.c
 637         subdir/two.c
 638         EOF
 639         git diff --cached --name-only >actual &&
 640         test_cmp expect actual
 641 '
 642
 643 test_expect_success 'add -p handles relative paths' '
 644         git reset --hard &&
 645
 646         echo base >relpath.c &&
 647         git add "*.c" &&
 648         git commit -m relpath &&
 649
 650         echo change >relpath.c &&
 651         mkdir -p subdir &&
 652         git -C subdir add -p .. 2>error <<-\EOF &&
 653         y
 654         EOF
 655
 656         test_must_be_empty error &&
 657
 658         cat >expect <<-\EOF &&
 659         relpath.c
 660         EOF
 661         git diff --cached --name-only >actual &&
 662         test_cmp expect actual
 663 '
 664
 665 test_expect_success 'add -p does not expand argument lists' '
 666         git reset --hard &&
 667
 668         echo content >not-changed &&
 669         git add not-changed &&
 670         git commit -m "add not-changed file" &&
 671
 672         echo change >file &&
 673         GIT_TRACE=$(pwd)/trace.out git add -p . <<-\EOF &&
 674         y
 675         EOF
 676
 677         # we know that "file" must be mentioned since we actually
 678         # update it, but we want to be sure that our "." pathspec
 679         # was not expanded into the argument list of any command.
 680         # So look only for "not-changed".
 681         ! grep -E "^trace: (built-in|exec|run_command): .*not-changed" trace.out
 682 '
 683
 684 test_expect_success 'hunk-editing handles custom comment char' '
 685         git reset --hard &&
 686         echo change >>file &&
 687         test_config core.commentChar "\$" &&
 688         echo e | GIT_EDITOR=true git add -p &&
 689         git diff --exit-code
 690 '
 691
 692 test_expect_success 'add -p works even with color.ui=always' '
 693         git reset --hard &&
 694         echo change >>file &&
 695         test_config color.ui always &&
 696         echo y | git add -p &&
 697         echo file >expect &&
 698         git diff --cached --name-only >actual &&
 699         test_cmp expect actual
 700 '
 701
 702 test_expect_success 'setup different kinds of dirty submodules' '
 703         test_create_repo for-submodules &&
 704         (
 705                 cd for-submodules &&
 706                 test_commit initial &&
 707                 test_create_repo dirty-head &&
 708                 (
 709                         cd dirty-head &&
 710                         test_commit initial
 711                 ) &&
 712                 cp -R dirty-head dirty-otherwise &&
 713                 cp -R dirty-head dirty-both-ways &&
 714                 git add dirty-head &&
 715                 git add dirty-otherwise dirty-both-ways &&
 716                 git commit -m initial &&
 717
 718                 cd dirty-head &&
 719                 test_commit updated &&
 720                 cd ../dirty-both-ways &&
 721                 test_commit updated &&
 722                 echo dirty >>initial &&
 723                 : >untracked &&
 724                 cd ../dirty-otherwise &&
 725                 echo dirty >>initial &&
 726                 : >untracked
 727         ) &&
 728         git -C for-submodules diff-files --name-only >actual &&
 729         cat >expected <<-\EOF &&
 730         dirty-both-ways
 731         dirty-head
 732         dirty-otherwise
 733         EOF
 734         test_cmp expected actual &&
 735         git -C for-submodules diff-files --name-only --ignore-submodules=dirty >actual &&
 736         cat >expected <<-\EOF &&
 737         dirty-both-ways
 738         dirty-head
 739         EOF
 740         test_cmp expected actual
 741 '
 742
 743 test_expect_success 'status ignores dirty submodules (except HEAD)' '
 744         git -C for-submodules add -i </dev/null >output &&
 745         grep dirty-head output &&
 746         grep dirty-both-ways output &&
 747         ! grep dirty-otherwise output
 748 '
 749
 750 test_expect_success 'set up pathological context' '
 751         git reset --hard &&
 752         test_write_lines a a a a a a a a a a a >a &&
 753         git add a &&
 754         git commit -m a &&
 755         test_write_lines c b a a a a a a a b a a a a >a &&
 756         test_write_lines     a a a a a a a b a a a a >expected-1 &&
 757         test_write_lines   b a a a a a a a b a a a a >expected-2 &&
 758         # check editing can cope with missing header and deleted context lines
 759         # as well as changes to other lines
 760         test_write_lines +b " a" >patch
 761 '
 762
 763 test_expect_success 'add -p works with pathological context lines' '
 764         git reset &&
 765         printf "%s\n" n y |
 766         git add -p &&
 767         git cat-file blob :a >actual &&
 768         test_cmp expected-1 actual
 769 '
 770
 771 test_expect_success 'add -p patch editing works with pathological context lines' '
 772         git reset &&
 773         # n q q below is in case edit fails
 774         printf "%s\n" e y    n q q |
 775         git add -p &&
 776         git cat-file blob :a >actual &&
 777         test_cmp expected-2 actual
 778 '
 779
 780 test_expect_success 'checkout -p works with pathological context lines' '
 781         test_write_lines a a a a a a >a &&
 782         git add a &&
 783         test_write_lines a b a b a b a b a b a >a &&
 784         test_write_lines s n n y q | git checkout -p &&
 785         test_write_lines a b a b a a b a b a >expect &&
 786         test_cmp expect a
 787 '
 788
 789 test_expect_success 'show help from add--helper' '
 790         git reset --hard &&
 791         cat >expect <<-EOF &&
 792
 793         <BOLD>*** Commands ***<RESET>
 794           1: <BOLD;BLUE>s<RESET>tatus     2: <BOLD;BLUE>u<RESET>pdate     3: <BOLD;BLUE>r<RESET>evert     4: <BOLD;BLUE>a<RESET>dd untracked
 795           5: <BOLD;BLUE>p<RESET>atch      6: <BOLD;BLUE>d<RESET>iff       7: <BOLD;BLUE>q<RESET>uit       8: <BOLD;BLUE>h<RESET>elp
 796         <BOLD;BLUE>What now<RESET>> <BOLD;RED>status        - show paths with changes<RESET>
 797         <BOLD;RED>update        - add working tree state to the staged set of changes<RESET>
 798         <BOLD;RED>revert        - revert staged set of changes back to the HEAD version<RESET>
 799         <BOLD;RED>patch         - pick hunks and update selectively<RESET>
 800         <BOLD;RED>diff          - view diff between HEAD and index<RESET>
 801         <BOLD;RED>add untracked - add contents of untracked files to the staged set of changes<RESET>
 802         <BOLD>*** Commands ***<RESET>
 803           1: <BOLD;BLUE>s<RESET>tatus     2: <BOLD;BLUE>u<RESET>pdate     3: <BOLD;BLUE>r<RESET>evert     4: <BOLD;BLUE>a<RESET>dd untracked
 804           5: <BOLD;BLUE>p<RESET>atch      6: <BOLD;BLUE>d<RESET>iff       7: <BOLD;BLUE>q<RESET>uit       8: <BOLD;BLUE>h<RESET>elp
 805         <BOLD;BLUE>What now<RESET>>$SP
 806         Bye.
 807         EOF
 808         test_write_lines h | force_color git add -i >actual.colored &&
 809         test_decode_color <actual.colored >actual &&
 810         test_i18ncmp expect actual
 811 '
 812
 813 test_done