t/t6412-merge-large-rename.sh

   1 #!/bin/sh
   2
   3 test_description='merging with large rename matrix'
   4 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
   5 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
   6
   7 . ./test-lib.sh
   8
   9 count() {
  10         i=1
  11         while test $i -le $1; do
  12                 echo $i
  13                 i=$(($i + 1))
  14         done
  15 }
  16
  17 test_expect_success 'setup (initial)' '
  18         touch file &&
  19         git add . &&
  20         git commit -m initial &&
  21         git tag initial
  22 '
  23
  24 make_text() {
  25         echo $1: $2
  26         for i in $(count 20); do
  27                 echo $1: $i
  28         done
  29         echo $1: $3
  30 }
  31
  32 test_rename() {
  33         test_expect_success "rename ($1, $2)" '
  34         n='$1' &&
  35         expect='$2' &&
  36         git checkout -f main &&
  37         test_might_fail git branch -D test$n &&
  38         git reset --hard initial &&
  39         for i in $(count $n); do
  40                 make_text $i initial initial >$i
  41         done &&
  42         git add . &&
  43         git commit -m add=$n &&
  44         for i in $(count $n); do
  45                 make_text $i changed initial >$i
  46         done &&
  47         git commit -a -m change=$n &&
  48         git checkout -b test$n HEAD^ &&
  49         for i in $(count $n); do
  50                 git rm $i
  51                 make_text $i initial changed >$i.moved
  52         done &&
  53         git add . &&
  54         git commit -m change+rename=$n &&
  55         case "$expect" in
  56                 ok) git merge main ;;
  57                  *) test_must_fail git merge main ;;
  58         esac
  59         '
  60 }
  61
  62 test_rename 5 ok
  63
  64 test_expect_success 'set diff.renamelimit to 4' '
  65         git config diff.renamelimit 4
  66 '
  67 test_rename 4 ok
  68 test_rename 5 fail
  69
  70 test_expect_success 'set merge.renamelimit to 5' '
  71         git config merge.renamelimit 5
  72 '
  73 test_rename 5 ok
  74 test_rename 6 fail
  75
  76 test_expect_success 'setup large simple rename' '
  77         git config --unset merge.renamelimit &&
  78         git config --unset diff.renamelimit &&
  79
  80         git reset --hard initial &&
  81         for i in $(count 200); do
  82                 make_text foo bar baz >$i
  83         done &&
  84         git add . &&
  85         git commit -m create-files &&
  86
  87         git branch simple-change &&
  88         git checkout -b simple-rename &&
  89
  90         mkdir builtin &&
  91         git mv [0-9]* builtin/ &&
  92         git commit -m renamed &&
  93
  94         git checkout simple-change &&
  95         >unrelated-change &&
  96         git add unrelated-change &&
  97         git commit -m unrelated-change
  98 '
  99
 100 test_expect_success 'massive simple rename does not spam added files' '
 101         sane_unset GIT_MERGE_VERBOSITY &&
 102         git merge --no-stat simple-rename | grep -v Removing >output &&
 103         test_line_count -lt 5 output
 104 '
 105
 106 test_done