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         # The first element of $@ may be a shell function, as a result POSIX
  35         # does not guarantee that "one-shot assignment" will not persist after
  36         # the function call. Thus, we prevent these variables from escaping
  37         # this function's context with this subshell.
  38         (
  39                 GIT_PAGER_IN_USE=true &&
  40                 TERM=vt100 &&
  41                 export GIT_PAGER_IN_USE TERM &&
  42                 "$@"
  43         )
  44 }
  45
  46 test_expect_success 'setup (initial)' '
  47         echo content >file &&
  48         git add file &&
  49         echo more >>file &&
  50         echo lines >>file
  51 '
  52 test_expect_success 'status works (initial)' '
  53         git add -i </dev/null >output &&
  54         grep "+1/-0 *+2/-0 file" output
  55 '
  56
  57 test_expect_success 'setup expected' '
  58         cat >expected <<-\EOF
  59         new file mode 100644
  60         index 0000000..d95f3ad
  61         --- /dev/null
  62         +++ b/file
  63         @@ -0,0 +1 @@
  64         +content
  65         EOF
  66 '
  67
  68 test_expect_success 'diff works (initial)' '
  69         test_write_lines d 1 | git add -i >output &&
  70         sed -ne "/new file/,/content/p" <output >diff &&
  71         diff_cmp expected diff
  72 '
  73 test_expect_success 'revert works (initial)' '
  74         git add file &&
  75         test_write_lines r 1 | git add -i &&
  76         git ls-files >output &&
  77         ! grep . output
  78 '
  79
  80 test_expect_success 'add untracked (multiple)' '
  81         test_when_finished "git reset && rm [1-9]" &&
  82         touch $(test_seq 9) &&
  83         test_write_lines a "2-5 8-" | git add -i -- [1-9] &&
  84         test_write_lines 2 3 4 5 8 9 >expected &&
  85         git ls-files [1-9] >output &&
  86         test_cmp expected output
  87 '
  88
  89 test_expect_success 'setup (commit)' '
  90         echo baseline >file &&
  91         git add file &&
  92         git commit -m commit &&
  93         echo content >>file &&
  94         git add file &&
  95         echo more >>file &&
  96         echo lines >>file
  97 '
  98 test_expect_success 'status works (commit)' '
  99         git add -i </dev/null >output &&
 100         grep "+1/-0 *+2/-0 file" output
 101 '
 102
 103 test_expect_success 'setup expected' '
 104         cat >expected <<-\EOF
 105         index 180b47c..b6f2c08 100644
 106         --- a/file
 107         +++ b/file
 108         @@ -1 +1,2 @@
 109          baseline
 110         +content
 111         EOF
 112 '
 113
 114 test_expect_success 'diff works (commit)' '
 115         test_write_lines d 1 | git add -i >output &&
 116         sed -ne "/^index/,/content/p" <output >diff &&
 117         diff_cmp expected diff
 118 '
 119 test_expect_success 'revert works (commit)' '
 120         git add file &&
 121         test_write_lines r 1 | git add -i &&
 122         git add -i </dev/null >output &&
 123         grep "unchanged *+3/-0 file" output
 124 '
 125
 126 test_expect_success 'setup expected' '
 127         cat >expected <<-\EOF
 128         EOF
 129 '
 130
 131 test_expect_success 'dummy edit works' '
 132         test_set_editor : &&
 133         test_write_lines e a | git add -p &&
 134         git diff > diff &&
 135         diff_cmp expected diff
 136 '
 137
 138 test_expect_success 'setup patch' '
 139         cat >patch <<-\EOF
 140         @@ -1,1 +1,4 @@
 141          this
 142         +patch
 143         -does not
 144          apply
 145         EOF
 146 '
 147
 148 test_expect_success 'setup fake editor' '
 149         write_script "fake_editor.sh" <<-\EOF &&
 150         mv -f "$1" oldpatch &&
 151         mv -f patch "$1"
 152         EOF
 153         test_set_editor "$(pwd)/fake_editor.sh"
 154 '
 155
 156 test_expect_success 'bad edit rejected' '
 157         git reset &&
 158         test_write_lines e n d | git add -p >output &&
 159         grep "hunk does not apply" output
 160 '
 161
 162 test_expect_success 'setup patch' '
 163         cat >patch <<-\EOF
 164         this patch
 165         is garbage
 166         EOF
 167 '
 168
 169 test_expect_success 'garbage edit rejected' '
 170         git reset &&
 171         test_write_lines e n d | git add -p >output &&
 172         grep "hunk does not apply" output
 173 '
 174
 175 test_expect_success 'setup patch' '
 176         cat >patch <<-\EOF
 177         @@ -1,0 +1,0 @@
 178          baseline
 179         +content
 180         +newcontent
 181         +lines
 182         EOF
 183 '
 184
 185 test_expect_success 'setup expected' '
 186         cat >expected <<-\EOF
 187         diff --git a/file b/file
 188         index b5dd6c9..f910ae9 100644
 189         --- a/file
 190         +++ b/file
 191         @@ -1,4 +1,4 @@
 192          baseline
 193          content
 194         -newcontent
 195         +more
 196          lines
 197         EOF
 198 '
 199
 200 test_expect_success 'real edit works' '
 201         test_write_lines e n d | git add -p &&
 202         git diff >output &&
 203         diff_cmp expected output
 204 '
 205
 206 test_expect_success 'setup file' '
 207         test_write_lines a "" b "" c >file &&
 208         git add file &&
 209         test_write_lines a "" d "" c >file
 210 '
 211
 212 test_expect_success 'setup patch' '
 213         SP=" " &&
 214         NULL="" &&
 215         cat >patch <<-EOF
 216         @@ -1,4 +1,4 @@
 217          a
 218         $NULL
 219         -b
 220         +f
 221         $SP
 222         c
 223         EOF
 224 '
 225
 226 test_expect_success 'setup expected' '
 227         cat >expected <<-EOF
 228         diff --git a/file b/file
 229         index b5dd6c9..f910ae9 100644
 230         --- a/file
 231         +++ b/file
 232         @@ -1,5 +1,5 @@
 233          a
 234         $SP
 235         -f
 236         +d
 237         $SP
 238          c
 239         EOF
 240 '
 241
 242 test_expect_success 'edit can strip spaces from empty context lines' '
 243         test_write_lines e n q | git add -p 2>error &&
 244         test_must_be_empty error &&
 245         git diff >output &&
 246         diff_cmp expected output
 247 '
 248
 249 test_expect_success 'skip files similarly as commit -a' '
 250         git reset &&
 251         echo file >.gitignore &&
 252         echo changed >file &&
 253         echo y | git add -p file &&
 254         git diff >output &&
 255         git reset &&
 256         git commit -am commit &&
 257         git diff >expected &&
 258         diff_cmp expected output &&
 259         git reset --hard HEAD^
 260 '
 261 rm -f .gitignore
 262
 263 test_expect_success FILEMODE 'patch does not affect mode' '
 264         git reset --hard &&
 265         echo content >>file &&
 266         chmod +x file &&
 267         printf "n\\ny\\n" | git add -p &&
 268         git show :file | grep content &&
 269         git diff file | grep "new mode"
 270 '
 271
 272 test_expect_success FILEMODE 'stage mode but not hunk' '
 273         git reset --hard &&
 274         echo content >>file &&
 275         chmod +x file &&
 276         printf "y\\nn\\n" | git add -p &&
 277         git diff --cached file | grep "new mode" &&
 278         git diff          file | grep "+content"
 279 '
 280
 281
 282 test_expect_success FILEMODE 'stage mode and hunk' '
 283         git reset --hard &&
 284         echo content >>file &&
 285         chmod +x file &&
 286         printf "y\\ny\\n" | git add -p &&
 287         git diff --cached file | grep "new mode" &&
 288         git diff --cached file | grep "+content" &&
 289         test -z "$(git diff file)"
 290 '
 291
 292 # end of tests disabled when filemode is not usable
 293
 294 test_expect_success 'different prompts for mode change/deleted' '
 295         git reset --hard &&
 296         >file &&
 297         >deleted &&
 298         git add --chmod=+x file deleted &&
 299         echo changed >file &&
 300         rm deleted &&
 301         test_write_lines n n n |
 302         git -c core.filemode=true add -p >actual &&
 303         sed -n "s/^\(([0-9/]*) Stage .*?\).*/\1/p" actual >actual.filtered &&
 304         cat >expect <<-\EOF &&
 305         (1/1) Stage deletion [y,n,q,a,d,?]?
 306         (1/2) Stage mode change [y,n,q,a,d,j,J,g,/,?]?
 307         (2/2) Stage this hunk [y,n,q,a,d,K,g,/,e,?]?
 308         EOF
 309         test_cmp expect actual.filtered
 310 '
 311
 312 test_expect_success 'correct message when there is nothing to do' '
 313         git reset --hard &&
 314         git add -p 2>err &&
 315         test_i18ngrep "No changes" err &&
 316         printf "\\0123" >binary &&
 317         git add binary &&
 318         printf "\\0abc" >binary &&
 319         git add -p 2>err &&
 320         test_i18ngrep "Only binary files changed" err
 321 '
 322
 323 test_expect_success 'setup again' '
 324         git reset --hard &&
 325         test_chmod +x file &&
 326         echo content >>file
 327 '
 328
 329 # Write the patch file with a new line at the top and bottom
 330 test_expect_success 'setup patch' '
 331         cat >patch <<-\EOF
 332         index 180b47c..b6f2c08 100644
 333         --- a/file
 334         +++ b/file
 335         @@ -1,2 +1,4 @@
 336         +firstline
 337          baseline
 338          content
 339         +lastline
 340         \ No newline at end of file
 341         EOF
 342 '
 343
 344 # Expected output, diff is similar to the patch but w/ diff at the top
 345 test_expect_success 'setup expected' '
 346         echo diff --git a/file b/file >expected &&
 347         cat patch |sed "/^index/s/ 100644/ 100755/" >>expected &&
 348         cat >expected-output <<-\EOF
 349         --- a/file
 350         +++ b/file
 351         @@ -1,2 +1,4 @@
 352         +firstline
 353          baseline
 354          content
 355         +lastline
 356         \ No newline at end of file
 357         @@ -1,2 +1,3 @@
 358         +firstline
 359          baseline
 360          content
 361         @@ -1,2 +2,3 @@
 362          baseline
 363          content
 364         +lastline
 365         \ No newline at end of file
 366         EOF
 367 '
 368
 369 # Test splitting the first patch, then adding both
 370 test_expect_success C_LOCALE_OUTPUT 'add first line works' '
 371         git commit -am "clear local changes" &&
 372         git apply patch &&
 373         printf "%s\n" s y y | git add -p file 2>error |
 374                 sed -n -e "s/^([1-2]\/[1-2]) Stage this hunk[^@]*\(@@ .*\)/\1/" \
 375                        -e "/^[-+@ \\\\]"/p  >output &&
 376         test_must_be_empty error &&
 377         git diff --cached >diff &&
 378         diff_cmp expected diff &&
 379         test_cmp expected-output output
 380 '
 381
 382 test_expect_success 'setup expected' '
 383         cat >expected <<-\EOF
 384         diff --git a/non-empty b/non-empty
 385         deleted file mode 100644
 386         index d95f3ad..0000000
 387         --- a/non-empty
 388         +++ /dev/null
 389         @@ -1 +0,0 @@
 390         -content
 391         EOF
 392 '
 393
 394 test_expect_success 'deleting a non-empty file' '
 395         git reset --hard &&
 396         echo content >non-empty &&
 397         git add non-empty &&
 398         git commit -m non-empty &&
 399         rm non-empty &&
 400         echo y | git add -p non-empty &&
 401         git diff --cached >diff &&
 402         diff_cmp expected diff
 403 '
 404
 405 test_expect_success 'setup expected' '
 406         cat >expected <<-\EOF
 407         diff --git a/empty b/empty
 408         deleted file mode 100644
 409         index e69de29..0000000
 410         EOF
 411 '
 412
 413 test_expect_success 'deleting an empty file' '
 414         git reset --hard &&
 415         > empty &&
 416         git add empty &&
 417         git commit -m empty &&
 418         rm empty &&
 419         echo y | git add -p empty &&
 420         git diff --cached >diff &&
 421         diff_cmp expected diff
 422 '
 423
 424 test_expect_success 'adding an empty file' '
 425         git init added &&
 426         (
 427                 cd added &&
 428                 test_commit initial &&
 429                 >empty &&
 430                 git add empty &&
 431                 test_tick &&
 432                 git commit -m empty &&
 433                 git tag added-file &&
 434                 git reset --hard HEAD^ &&
 435                 test_path_is_missing empty &&
 436
 437                 echo y | git checkout -p added-file -- >actual &&
 438                 test_path_is_file empty &&
 439                 test_i18ngrep "Apply addition to index and worktree" actual
 440         )
 441 '
 442
 443 test_expect_success 'split hunk setup' '
 444         git reset --hard &&
 445         test_write_lines 10 20 30 40 50 60 >test &&
 446         git add test &&
 447         test_tick &&
 448         git commit -m test &&
 449
 450         test_write_lines 10 15 20 21 22 23 24 30 40 50 60 >test
 451 '
 452
 453 test_expect_success 'goto hunk' '
 454         test_when_finished "git reset" &&
 455         tr _ " " >expect <<-EOF &&
 456         (2/2) Stage this hunk [y,n,q,a,d,K,g,/,e,?]? + 1:  -1,2 +1,3          +15
 457         _ 2:  -2,4 +3,8          +21
 458         go to which hunk? @@ -1,2 +1,3 @@
 459         _10
 460         +15
 461         _20
 462         (1/2) Stage this hunk [y,n,q,a,d,j,J,g,/,e,?]?_
 463         EOF
 464         test_write_lines s y g 1 | git add -p >actual &&
 465         tail -n 7 <actual >actual.trimmed &&
 466         test_cmp expect actual.trimmed
 467 '
 468
 469 test_expect_success 'navigate to hunk via regex' '
 470         test_when_finished "git reset" &&
 471         tr _ " " >expect <<-EOF &&
 472         (2/2) Stage this hunk [y,n,q,a,d,K,g,/,e,?]? @@ -1,2 +1,3 @@
 473         _10
 474         +15
 475         _20
 476         (1/2) Stage this hunk [y,n,q,a,d,j,J,g,/,e,?]?_
 477         EOF
 478         test_write_lines s y /1,2 | git add -p >actual &&
 479         tail -n 5 <actual >actual.trimmed &&
 480         test_cmp expect actual.trimmed
 481 '
 482
 483 test_expect_success 'split hunk "add -p (edit)"' '
 484         # Split, say Edit and do nothing.  Then:
 485         #
 486         # 1. Broken version results in a patch that does not apply and
 487         # only takes [y/n] (edit again) so the first q is discarded
 488         # and then n attempts to discard the edit. Repeat q enough
 489         # times to get out.
 490         #
 491         # 2. Correct version applies the (not)edited version, and asks
 492         #    about the next hunk, against which we say q and program
 493         #    exits.
 494         printf "%s\n" s e     q n q q |
 495         EDITOR=: git add -p &&
 496         git diff >actual &&
 497         ! grep "^+15" actual
 498 '
 499
 500 test_expect_failure 'split hunk "add -p (no, yes, edit)"' '
 501         test_write_lines 5 10 20 21 30 31 40 50 60 >test &&
 502         git reset &&
 503         # test sequence is s(plit), n(o), y(es), e(dit)
 504         # q n q q is there to make sure we exit at the end.
 505         printf "%s\n" s n y e   q n q q |
 506         EDITOR=: git add -p 2>error &&
 507         test_must_be_empty error &&
 508         git diff >actual &&
 509         ! grep "^+31" actual
 510 '
 511
 512 test_expect_success 'split hunk with incomplete line at end' '
 513         git reset --hard &&
 514         printf "missing LF" >>test &&
 515         git add test &&
 516         test_write_lines before 10 20 30 40 50 60 70 >test &&
 517         git grep --cached missing &&
 518         test_write_lines s n y q | git add -p &&
 519         test_must_fail git grep --cached missing &&
 520         git grep before &&
 521         test_must_fail git grep --cached before
 522 '
 523
 524 test_expect_failure 'edit, adding lines to the first hunk' '
 525         test_write_lines 10 11 20 30 40 50 51 60 >test &&
 526         git reset &&
 527         tr _ " " >patch <<-EOF &&
 528         @@ -1,5 +1,6 @@
 529         _10
 530         +11
 531         +12
 532         _20
 533         +21
 534         +22
 535         _30
 536         EOF
 537         # test sequence is s(plit), e(dit), n(o)
 538         # q n q q is there to make sure we exit at the end.
 539         printf "%s\n" s e n   q n q q |
 540         EDITOR=./fake_editor.sh git add -p 2>error &&
 541         test_must_be_empty error &&
 542         git diff --cached >actual &&
 543         grep "^+22" actual
 544 '
 545
 546 test_expect_success 'patch mode ignores unmerged entries' '
 547         git reset --hard &&
 548         test_commit conflict &&
 549         test_commit non-conflict &&
 550         git checkout -b side &&
 551         test_commit side conflict.t &&
 552         git checkout master &&
 553         test_commit master conflict.t &&
 554         test_must_fail git merge side &&
 555         echo changed >non-conflict.t &&
 556         echo y | git add -p >output &&
 557         ! grep a/conflict.t output &&
 558         cat >expected <<-\EOF &&
 559         * Unmerged path conflict.t
 560         diff --git a/non-conflict.t b/non-conflict.t
 561         index f766221..5ea2ed4 100644
 562         --- a/non-conflict.t
 563         +++ b/non-conflict.t
 564         @@ -1 +1 @@
 565         -non-conflict
 566         +changed
 567         EOF
 568         git diff --cached >diff &&
 569         diff_cmp expected diff
 570 '
 571
 572 test_expect_success 'diffs can be colorized' '
 573         git reset --hard &&
 574
 575         echo content >test &&
 576         printf y >y &&
 577         force_color git add -p >output 2>&1 <y &&
 578
 579         # We do not want to depend on the exact coloring scheme
 580         # git uses for diffs, so just check that we saw some kind of color.
 581         grep "$(printf "\\033")" output
 582 '
 583
 584 test_expect_success 'colorized diffs respect diff.wsErrorHighlight' '
 585         git reset --hard &&
 586
 587         echo "old " >test &&
 588         git add test &&
 589         echo "new " >test &&
 590
 591         printf y >y &&
 592         force_color git -c diff.wsErrorHighlight=all add -p >output.raw 2>&1 <y &&
 593         test_decode_color <output.raw >output &&
 594         grep "old<" output
 595 '
 596
 597 test_expect_success 'diffFilter filters diff' '
 598         git reset --hard &&
 599
 600         echo content >test &&
 601         test_config interactive.diffFilter "sed s/^/foo:/" &&
 602         printf y >y &&
 603         force_color git add -p >output 2>&1 <y &&
 604
 605         # avoid depending on the exact coloring or content of the prompts,
 606         # and just make sure we saw our diff prefixed
 607         grep foo:.*content output
 608 '
 609
 610 test_expect_success 'detect bogus diffFilter output' '
 611         git reset --hard &&
 612
 613         echo content >test &&
 614         test_config interactive.diffFilter "sed 1d" &&
 615         printf y >y &&
 616         force_color test_must_fail git add -p <y
 617 '
 618
 619 test_expect_success 'diff.algorithm is passed to `git diff-files`' '
 620         git reset --hard &&
 621
 622         >file &&
 623         git add file &&
 624         echo changed >file &&
 625         test_must_fail git -c diff.algorithm=bogus add -p 2>err &&
 626         test_i18ngrep "error: option diff-algorithm accepts " err
 627 '
 628
 629 test_expect_success 'patch-mode via -i prompts for files' '
 630         git reset --hard &&
 631
 632         echo one >file &&
 633         echo two >test &&
 634         git add -i <<-\EOF &&
 635         patch
 636         test
 637
 638         y
 639         quit
 640         EOF
 641
 642         echo test >expect &&
 643         git diff --cached --name-only >actual &&
 644         diff_cmp expect actual
 645 '
 646
 647 test_expect_success 'add -p handles globs' '
 648         git reset --hard &&
 649
 650         mkdir -p subdir &&
 651         echo base >one.c &&
 652         echo base >subdir/two.c &&
 653         git add "*.c" &&
 654         git commit -m base &&
 655
 656         echo change >one.c &&
 657         echo change >subdir/two.c &&
 658         git add -p "*.c" <<-\EOF &&
 659         y
 660         y
 661         EOF
 662
 663         cat >expect <<-\EOF &&
 664         one.c
 665         subdir/two.c
 666         EOF
 667         git diff --cached --name-only >actual &&
 668         test_cmp expect actual
 669 '
 670
 671 test_expect_success 'add -p handles relative paths' '
 672         git reset --hard &&
 673
 674         echo base >relpath.c &&
 675         git add "*.c" &&
 676         git commit -m relpath &&
 677
 678         echo change >relpath.c &&
 679         mkdir -p subdir &&
 680         git -C subdir add -p .. 2>error <<-\EOF &&
 681         y
 682         EOF
 683
 684         test_must_be_empty error &&
 685
 686         cat >expect <<-\EOF &&
 687         relpath.c
 688         EOF
 689         git diff --cached --name-only >actual &&
 690         test_cmp expect actual
 691 '
 692
 693 test_expect_success 'add -p does not expand argument lists' '
 694         git reset --hard &&
 695
 696         echo content >not-changed &&
 697         git add not-changed &&
 698         git commit -m "add not-changed file" &&
 699
 700         echo change >file &&
 701         GIT_TRACE=$(pwd)/trace.out git add -p . <<-\EOF &&
 702         y
 703         EOF
 704
 705         # we know that "file" must be mentioned since we actually
 706         # update it, but we want to be sure that our "." pathspec
 707         # was not expanded into the argument list of any command.
 708         # So look only for "not-changed".
 709         ! grep -E "^trace: (built-in|exec|run_command): .*not-changed" trace.out
 710 '
 711
 712 test_expect_success 'hunk-editing handles custom comment char' '
 713         git reset --hard &&
 714         echo change >>file &&
 715         test_config core.commentChar "\$" &&
 716         echo e | GIT_EDITOR=true git add -p &&
 717         git diff --exit-code
 718 '
 719
 720 test_expect_success 'add -p works even with color.ui=always' '
 721         git reset --hard &&
 722         echo change >>file &&
 723         test_config color.ui always &&
 724         echo y | git add -p &&
 725         echo file >expect &&
 726         git diff --cached --name-only >actual &&
 727         test_cmp expect actual
 728 '
 729
 730 test_expect_success 'setup different kinds of dirty submodules' '
 731         test_create_repo for-submodules &&
 732         (
 733                 cd for-submodules &&
 734                 test_commit initial &&
 735                 test_create_repo dirty-head &&
 736                 (
 737                         cd dirty-head &&
 738                         test_commit initial
 739                 ) &&
 740                 cp -R dirty-head dirty-otherwise &&
 741                 cp -R dirty-head dirty-both-ways &&
 742                 git add dirty-head &&
 743                 git add dirty-otherwise dirty-both-ways &&
 744                 git commit -m initial &&
 745
 746                 cd dirty-head &&
 747                 test_commit updated &&
 748                 cd ../dirty-both-ways &&
 749                 test_commit updated &&
 750                 echo dirty >>initial &&
 751                 : >untracked &&
 752                 cd ../dirty-otherwise &&
 753                 echo dirty >>initial &&
 754                 : >untracked
 755         ) &&
 756         git -C for-submodules diff-files --name-only >actual &&
 757         cat >expected <<-\EOF &&
 758         dirty-both-ways
 759         dirty-head
 760         dirty-otherwise
 761         EOF
 762         test_cmp expected actual &&
 763         git -C for-submodules diff-files --name-only --ignore-submodules=dirty >actual &&
 764         cat >expected <<-\EOF &&
 765         dirty-both-ways
 766         dirty-head
 767         EOF
 768         test_cmp expected actual
 769 '
 770
 771 test_expect_success 'status ignores dirty submodules (except HEAD)' '
 772         git -C for-submodules add -i </dev/null >output &&
 773         grep dirty-head output &&
 774         grep dirty-both-ways output &&
 775         ! grep dirty-otherwise output
 776 '
 777
 778 test_expect_success 'set up pathological context' '
 779         git reset --hard &&
 780         test_write_lines a a a a a a a a a a a >a &&
 781         git add a &&
 782         git commit -m a &&
 783         test_write_lines c b a a a a a a a b a a a a >a &&
 784         test_write_lines     a a a a a a a b a a a a >expected-1 &&
 785         test_write_lines   b a a a a a a a b a a a a >expected-2 &&
 786         # check editing can cope with missing header and deleted context lines
 787         # as well as changes to other lines
 788         test_write_lines +b " a" >patch
 789 '
 790
 791 test_expect_success 'add -p works with pathological context lines' '
 792         git reset &&
 793         printf "%s\n" n y |
 794         git add -p &&
 795         git cat-file blob :a >actual &&
 796         test_cmp expected-1 actual
 797 '
 798
 799 test_expect_success 'add -p patch editing works with pathological context lines' '
 800         git reset &&
 801         # n q q below is in case edit fails
 802         printf "%s\n" e y    n q q |
 803         git add -p &&
 804         git cat-file blob :a >actual &&
 805         test_cmp expected-2 actual
 806 '
 807
 808 test_expect_success 'checkout -p works with pathological context lines' '
 809         test_write_lines a a a a a a >a &&
 810         git add a &&
 811         test_write_lines a b a b a b a b a b a >a &&
 812         test_write_lines s n n y q | git checkout -p &&
 813         test_write_lines a b a b a a b a b a >expect &&
 814         test_cmp expect a
 815 '
 816
 817 test_expect_success 'show help from add--helper' '
 818         git reset --hard &&
 819         cat >expect <<-EOF &&
 820
 821         <BOLD>*** Commands ***<RESET>
 822           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
 823           5: <BOLD;BLUE>p<RESET>atch      6: <BOLD;BLUE>d<RESET>iff       7: <BOLD;BLUE>q<RESET>uit       8: <BOLD;BLUE>h<RESET>elp
 824         <BOLD;BLUE>What now<RESET>> <BOLD;RED>status        - show paths with changes<RESET>
 825         <BOLD;RED>update        - add working tree state to the staged set of changes<RESET>
 826         <BOLD;RED>revert        - revert staged set of changes back to the HEAD version<RESET>
 827         <BOLD;RED>patch         - pick hunks and update selectively<RESET>
 828         <BOLD;RED>diff          - view diff between HEAD and index<RESET>
 829         <BOLD;RED>add untracked - add contents of untracked files to the staged set of changes<RESET>
 830         <BOLD>*** Commands ***<RESET>
 831           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
 832           5: <BOLD;BLUE>p<RESET>atch      6: <BOLD;BLUE>d<RESET>iff       7: <BOLD;BLUE>q<RESET>uit       8: <BOLD;BLUE>h<RESET>elp
 833         <BOLD;BLUE>What now<RESET>>$SP
 834         Bye.
 835         EOF
 836         test_write_lines h | force_color git add -i >actual.colored &&
 837         test_decode_color <actual.colored >actual &&
 838         test_i18ncmp expect actual
 839 '
 840
 841 test_done