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Diffstat (limited to 't/t6022-merge-rename.sh')
| -rwxr-xr-x | t/t6022-merge-rename.sh | 903 |
1 files changed, 903 insertions, 0 deletions
diff --git a/t/t6022-merge-rename.sh b/t/t6022-merge-rename.sh new file mode 100755 index 0000000000..c680f789a7 --- /dev/null +++ b/t/t6022-merge-rename.sh @@ -0,0 +1,903 @@ +#!/bin/sh + +test_description='Merge-recursive merging renames' +. ./test-lib.sh + +modify () { + sed -e "$1" <"$2" >"$2.x" && + mv "$2.x" "$2" +} + +test_expect_success setup \ +' +cat >A <<\EOF && +a aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +b bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb +c cccccccccccccccccccccccccccccccccccccccccccccccc +d dddddddddddddddddddddddddddddddddddddddddddddddd +e eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee +f ffffffffffffffffffffffffffffffffffffffffffffffff +g gggggggggggggggggggggggggggggggggggggggggggggggg +h hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh +i iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii +j jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj +k kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk +l llllllllllllllllllllllllllllllllllllllllllllllll +m mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm +n nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn +o oooooooooooooooooooooooooooooooooooooooooooooooo +EOF + +cat >M <<\EOF && +A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA +B BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB +C CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC +D DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD +E EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE +F FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF +G GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG +H HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH +I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII +J JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ +K KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK +L LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL +M MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM +N NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN +O OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO +EOF + +git add A M && +git commit -m "initial has A and M" && +git branch white && +git branch red && +git branch blue && +git branch yellow && +git branch change && +git branch change+rename && + +sed -e "/^g /s/.*/g : master changes a line/" <A >A+ && +mv A+ A && +git commit -a -m "master updates A" && + +git checkout yellow && +rm -f M && +git commit -a -m "yellow removes M" && + +git checkout white && +sed -e "/^g /s/.*/g : white changes a line/" <A >B && +sed -e "/^G /s/.*/G : colored branch changes a line/" <M >N && +rm -f A M && +git update-index --add --remove A B M N && +git commit -m "white renames A->B, M->N" && + +git checkout red && +sed -e "/^g /s/.*/g : red changes a line/" <A >B && +sed -e "/^G /s/.*/G : colored branch changes a line/" <M >N && +rm -f A M && +git update-index --add --remove A B M N && +git commit -m "red renames A->B, M->N" && + +git checkout blue && +sed -e "/^g /s/.*/g : blue changes a line/" <A >C && +sed -e "/^G /s/.*/G : colored branch changes a line/" <M >N && +rm -f A M && +git update-index --add --remove A C M N && +git commit -m "blue renames A->C, M->N" && + +git checkout change && +sed -e "/^g /s/.*/g : changed line/" <A >A+ && +mv A+ A && +git commit -q -a -m "changed" && + +git checkout change+rename && +sed -e "/^g /s/.*/g : changed line/" <A >B && +rm A && +git update-index --add B && +git commit -q -a -m "changed and renamed" && + +git checkout master' + +test_expect_success 'pull renaming branch into unrenaming one' \ +' + git show-branch && + test_expect_code 1 git pull . white && + git ls-files -s && + git ls-files -u B >b.stages && + test_line_count = 3 b.stages && + git ls-files -s N >n.stages && + test_line_count = 1 n.stages && + sed -ne "/^g/{ + p + q + }" B | grep master && + git diff --exit-code white N +' + +test_expect_success 'pull renaming branch into another renaming one' \ +' + rm -f B && + git reset --hard && + git checkout red && + test_expect_code 1 git pull . white && + git ls-files -u B >b.stages && + test_line_count = 3 b.stages && + git ls-files -s N >n.stages && + test_line_count = 1 n.stages && + sed -ne "/^g/{ + p + q + }" B | grep red && + git diff --exit-code white N +' + +test_expect_success 'pull unrenaming branch into renaming one' \ +' + git reset --hard && + git show-branch && + test_expect_code 1 git pull . master && + git ls-files -u B >b.stages && + test_line_count = 3 b.stages && + git ls-files -s N >n.stages && + test_line_count = 1 n.stages && + sed -ne "/^g/{ + p + q + }" B | grep red && + git diff --exit-code white N +' + +test_expect_success 'pull conflicting renames' \ +' + git reset --hard && + git show-branch && + test_expect_code 1 git pull . blue && + git ls-files -u A >a.stages && + test_line_count = 1 a.stages && + git ls-files -u B >b.stages && + test_line_count = 1 b.stages && + git ls-files -u C >c.stages && + test_line_count = 1 c.stages && + git ls-files -s N >n.stages && + test_line_count = 1 n.stages && + sed -ne "/^g/{ + p + q + }" B | grep red && + git diff --exit-code white N +' + +test_expect_success 'interference with untracked working tree file' ' + git reset --hard && + git show-branch && + echo >A this file should not matter && + test_expect_code 1 git pull . white && + test_path_is_file A +' + +test_expect_success 'interference with untracked working tree file' ' + git reset --hard && + git checkout white && + git show-branch && + rm -f A && + echo >A this file should not matter && + test_expect_code 1 git pull . red && + test_path_is_file A +' + +test_expect_success 'interference with untracked working tree file' ' + git reset --hard && + rm -f A M && + git checkout -f master && + git tag -f anchor && + git show-branch && + git pull . yellow && + test_path_is_missing M && + git reset --hard anchor +' + +test_expect_success 'updated working tree file should prevent the merge' ' + git reset --hard && + rm -f A M && + git checkout -f master && + git tag -f anchor && + git show-branch && + echo >>M one line addition && + cat M >M.saved && + test_expect_code 128 git pull . yellow && + test_cmp M M.saved && + rm -f M.saved +' + +test_expect_success 'updated working tree file should prevent the merge' ' + git reset --hard && + rm -f A M && + git checkout -f master && + git tag -f anchor && + git show-branch && + echo >>M one line addition && + cat M >M.saved && + git update-index M && + test_expect_code 128 git pull . yellow && + test_cmp M M.saved && + rm -f M.saved +' + +test_expect_success 'interference with untracked working tree file' ' + git reset --hard && + rm -f A M && + git checkout -f yellow && + git tag -f anchor && + git show-branch && + echo >M this file should not matter && + git pull . master && + test_path_is_file M && + ! { + git ls-files -s | + grep M + } && + git reset --hard anchor +' + +test_expect_success 'merge of identical changes in a renamed file' ' + rm -f A M N && + git reset --hard && + git checkout change+rename && + GIT_MERGE_VERBOSITY=3 git merge change | test_i18ngrep "^Skipped B" && + git reset --hard HEAD^ && + git checkout change && + GIT_MERGE_VERBOSITY=3 git merge change+rename | test_i18ngrep "^Skipped B" +' + +test_expect_success 'setup for rename + d/f conflicts' ' + git reset --hard && + git checkout --orphan dir-in-way && + git rm -rf . && + git clean -fdqx && + + mkdir sub && + mkdir dir && + printf "1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n" >sub/file && + echo foo >dir/file-in-the-way && + git add -A && + git commit -m "Common commmit" && + + echo 11 >>sub/file && + echo more >>dir/file-in-the-way && + git add -u && + git commit -m "Commit to merge, with dir in the way" && + + git checkout -b dir-not-in-way && + git reset --soft HEAD^ && + git rm -rf dir && + git commit -m "Commit to merge, with dir removed" -- dir sub/file && + + git checkout -b renamed-file-has-no-conflicts dir-in-way~1 && + git rm -rf dir && + git rm sub/file && + printf "1\n2\n3\n4\n5555\n6\n7\n8\n9\n10\n" >dir && + git add dir && + git commit -m "Independent change" && + + git checkout -b renamed-file-has-conflicts dir-in-way~1 && + git rm -rf dir && + git mv sub/file dir && + echo 12 >>dir && + git add dir && + git commit -m "Conflicting change" +' + +printf "1\n2\n3\n4\n5555\n6\n7\n8\n9\n10\n11\n" >expected + +test_expect_success 'Rename+D/F conflict; renamed file merges + dir not in way' ' + git reset --hard && + git checkout -q renamed-file-has-no-conflicts^0 && + git merge --strategy=recursive dir-not-in-way && + git diff --quiet && + test -f dir && + test_cmp expected dir +' + +test_expect_success 'Rename+D/F conflict; renamed file merges but dir in way' ' + git reset --hard && + rm -rf dir~* && + git checkout -q renamed-file-has-no-conflicts^0 && + test_must_fail git merge --strategy=recursive dir-in-way >output && + + test_i18ngrep "CONFLICT (modify/delete): dir/file-in-the-way" output && + test_i18ngrep "Auto-merging dir" output && + test_i18ngrep "Adding as dir~HEAD instead" output && + + test 3 -eq "$(git ls-files -u | wc -l)" && + test 2 -eq "$(git ls-files -u dir/file-in-the-way | wc -l)" && + + test_must_fail git diff --quiet && + test_must_fail git diff --cached --quiet && + + test -f dir/file-in-the-way && + test -f dir~HEAD && + test_cmp expected dir~HEAD +' + +test_expect_success 'Same as previous, but merged other way' ' + git reset --hard && + rm -rf dir~* && + git checkout -q dir-in-way^0 && + test_must_fail git merge --strategy=recursive renamed-file-has-no-conflicts >output 2>errors && + + ! grep "error: refusing to lose untracked file at" errors && + test_i18ngrep "CONFLICT (modify/delete): dir/file-in-the-way" output && + test_i18ngrep "Auto-merging dir" output && + test_i18ngrep "Adding as dir~renamed-file-has-no-conflicts instead" output && + + test 3 -eq "$(git ls-files -u | wc -l)" && + test 2 -eq "$(git ls-files -u dir/file-in-the-way | wc -l)" && + + test_must_fail git diff --quiet && + test_must_fail git diff --cached --quiet && + + test -f dir/file-in-the-way && + test -f dir~renamed-file-has-no-conflicts && + test_cmp expected dir~renamed-file-has-no-conflicts +' + +cat >expected <<\EOF && +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +<<<<<<< HEAD:dir +12 +======= +11 +>>>>>>> dir-not-in-way:sub/file +EOF + +test_expect_success 'Rename+D/F conflict; renamed file cannot merge, dir not in way' ' + git reset --hard && + rm -rf dir~* && + git checkout -q renamed-file-has-conflicts^0 && + test_must_fail git merge --strategy=recursive dir-not-in-way && + + test 3 -eq "$(git ls-files -u | wc -l)" && + test 3 -eq "$(git ls-files -u dir | wc -l)" && + + test_must_fail git diff --quiet && + test_must_fail git diff --cached --quiet && + + test -f dir && + test_cmp expected dir +' + +test_expect_success 'Rename+D/F conflict; renamed file cannot merge and dir in the way' ' + modify s/dir-not-in-way/dir-in-way/ expected && + + git reset --hard && + rm -rf dir~* && + git checkout -q renamed-file-has-conflicts^0 && + test_must_fail git merge --strategy=recursive dir-in-way && + + test 5 -eq "$(git ls-files -u | wc -l)" && + test 3 -eq "$(git ls-files -u dir | grep -v file-in-the-way | wc -l)" && + test 2 -eq "$(git ls-files -u dir/file-in-the-way | wc -l)" && + + test_must_fail git diff --quiet && + test_must_fail git diff --cached --quiet && + + test -f dir/file-in-the-way && + test -f dir~HEAD && + test_cmp expected dir~HEAD +' + +cat >expected <<\EOF && +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +<<<<<<< HEAD:sub/file +11 +======= +12 +>>>>>>> renamed-file-has-conflicts:dir +EOF + +test_expect_success 'Same as previous, but merged other way' ' + git reset --hard && + rm -rf dir~* && + git checkout -q dir-in-way^0 && + test_must_fail git merge --strategy=recursive renamed-file-has-conflicts && + + test 5 -eq "$(git ls-files -u | wc -l)" && + test 3 -eq "$(git ls-files -u dir | grep -v file-in-the-way | wc -l)" && + test 2 -eq "$(git ls-files -u dir/file-in-the-way | wc -l)" && + + test_must_fail git diff --quiet && + test_must_fail git diff --cached --quiet && + + test -f dir/file-in-the-way && + test -f dir~renamed-file-has-conflicts && + test_cmp expected dir~renamed-file-has-conflicts +' + +test_expect_success 'setup both rename source and destination involved in D/F conflict' ' + git reset --hard && + git checkout --orphan rename-dest && + git rm -rf . && + git clean -fdqx && + + mkdir one && + echo stuff >one/file && + git add -A && + git commit -m "Common commmit" && + + git mv one/file destdir && + git commit -m "Renamed to destdir" && + + git checkout -b source-conflict HEAD~1 && + git rm -rf one && + mkdir destdir && + touch one destdir/foo && + git add -A && + git commit -m "Conflicts in the way" +' + +test_expect_success 'both rename source and destination involved in D/F conflict' ' + git reset --hard && + rm -rf dir~* && + git checkout -q rename-dest^0 && + test_must_fail git merge --strategy=recursive source-conflict && + + test 1 -eq "$(git ls-files -u | wc -l)" && + + test_must_fail git diff --quiet && + + test -f destdir/foo && + test -f one && + test -f destdir~HEAD && + test "stuff" = "$(cat destdir~HEAD)" +' + +test_expect_success 'setup pair rename to parent of other (D/F conflicts)' ' + git reset --hard && + git checkout --orphan rename-two && + git rm -rf . && + git clean -fdqx && + + mkdir one && + mkdir two && + echo stuff >one/file && + echo other >two/file && + git add -A && + git commit -m "Common commmit" && + + git rm -rf one && + git mv two/file one && + git commit -m "Rename two/file -> one" && + + git checkout -b rename-one HEAD~1 && + git rm -rf two && + git mv one/file two && + rm -r one && + git commit -m "Rename one/file -> two" +' + +test_expect_success 'pair rename to parent of other (D/F conflicts) w/ untracked dir' ' + git checkout -q rename-one^0 && + mkdir one && + test_must_fail git merge --strategy=recursive rename-two && + + test 2 -eq "$(git ls-files -u | wc -l)" && + test 1 -eq "$(git ls-files -u one | wc -l)" && + test 1 -eq "$(git ls-files -u two | wc -l)" && + + test_must_fail git diff --quiet && + + test 4 -eq $(find . | grep -v .git | wc -l) && + + test -d one && + test -f one~rename-two && + test -f two && + test "other" = $(cat one~rename-two) && + test "stuff" = $(cat two) +' + +test_expect_success 'pair rename to parent of other (D/F conflicts) w/ clean start' ' + git reset --hard && + git clean -fdqx && + test_must_fail git merge --strategy=recursive rename-two && + + test 2 -eq "$(git ls-files -u | wc -l)" && + test 1 -eq "$(git ls-files -u one | wc -l)" && + test 1 -eq "$(git ls-files -u two | wc -l)" && + + test_must_fail git diff --quiet && + + test 3 -eq $(find . | grep -v .git | wc -l) && + + test -f one && + test -f two && + test "other" = $(cat one) && + test "stuff" = $(cat two) +' + +test_expect_success 'setup rename of one file to two, with directories in the way' ' + git reset --hard && + git checkout --orphan first-rename && + git rm -rf . && + git clean -fdqx && + + echo stuff >original && + git add -A && + git commit -m "Common commmit" && + + mkdir two && + >two/file && + git add two/file && + git mv original one && + git commit -m "Put two/file in the way, rename to one" && + + git checkout -b second-rename HEAD~1 && + mkdir one && + >one/file && + git add one/file && + git mv original two && + git commit -m "Put one/file in the way, rename to two" +' + +test_expect_success 'check handling of differently renamed file with D/F conflicts' ' + git checkout -q first-rename^0 && + test_must_fail git merge --strategy=recursive second-rename && + + test 5 -eq "$(git ls-files -s | wc -l)" && + test 3 -eq "$(git ls-files -u | wc -l)" && + test 1 -eq "$(git ls-files -u one | wc -l)" && + test 1 -eq "$(git ls-files -u two | wc -l)" && + test 1 -eq "$(git ls-files -u original | wc -l)" && + test 2 -eq "$(git ls-files -o | wc -l)" && + + test -f one/file && + test -f two/file && + test -f one~HEAD && + test -f two~second-rename && + ! test -f original +' + +test_expect_success 'setup rename one file to two; directories moving out of the way' ' + git reset --hard && + git checkout --orphan first-rename-redo && + git rm -rf . && + git clean -fdqx && + + echo stuff >original && + mkdir one two && + touch one/file two/file && + git add -A && + git commit -m "Common commmit" && + + git rm -rf one && + git mv original one && + git commit -m "Rename to one" && + + git checkout -b second-rename-redo HEAD~1 && + git rm -rf two && + git mv original two && + git commit -m "Rename to two" +' + +test_expect_success 'check handling of differently renamed file with D/F conflicts' ' + git checkout -q first-rename-redo^0 && + test_must_fail git merge --strategy=recursive second-rename-redo && + + test 3 -eq "$(git ls-files -u | wc -l)" && + test 1 -eq "$(git ls-files -u one | wc -l)" && + test 1 -eq "$(git ls-files -u two | wc -l)" && + test 1 -eq "$(git ls-files -u original | wc -l)" && + test 0 -eq "$(git ls-files -o | wc -l)" && + + test -f one && + test -f two && + ! test -f original +' + +test_expect_success 'setup avoid unnecessary update, normal rename' ' + git reset --hard && + git checkout --orphan avoid-unnecessary-update-1 && + git rm -rf . && + git clean -fdqx && + + printf "1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n" >original && + git add -A && + git commit -m "Common commmit" && + + git mv original rename && + echo 11 >>rename && + git add -u && + git commit -m "Renamed and modified" && + + git checkout -b merge-branch-1 HEAD~1 && + echo "random content" >random-file && + git add -A && + git commit -m "Random, unrelated changes" +' + +test_expect_success 'avoid unnecessary update, normal rename' ' + git checkout -q avoid-unnecessary-update-1^0 && + test-chmtime =1000000000 rename && + test-chmtime -v +0 rename >expect && + git merge merge-branch-1 && + test-chmtime -v +0 rename >actual && + test_cmp expect actual # "rename" should have stayed intact +' + +test_expect_success 'setup to test avoiding unnecessary update, with D/F conflict' ' + git reset --hard && + git checkout --orphan avoid-unnecessary-update-2 && + git rm -rf . && + git clean -fdqx && + + mkdir df && + printf "1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n" >df/file && + git add -A && + git commit -m "Common commmit" && + + git mv df/file temp && + rm -rf df && + git mv temp df && + echo 11 >>df && + git add -u && + git commit -m "Renamed and modified" && + + git checkout -b merge-branch-2 HEAD~1 && + >unrelated-change && + git add unrelated-change && + git commit -m "Only unrelated changes" +' + +test_expect_success 'avoid unnecessary update, with D/F conflict' ' + git checkout -q avoid-unnecessary-update-2^0 && + test-chmtime =1000000000 df && + test-chmtime -v +0 df >expect && + git merge merge-branch-2 && + test-chmtime -v +0 df >actual && + test_cmp expect actual # "df" should have stayed intact +' + +test_expect_success 'setup avoid unnecessary update, dir->(file,nothing)' ' + git rm -rf . && + git clean -fdqx && + rm -rf .git && + git init && + + >irrelevant && + mkdir df && + >df/file && + git add -A && + git commit -mA && + + git checkout -b side + git rm -rf df && + git commit -mB && + + git checkout master && + git rm -rf df && + echo bla >df && + git add -A && + git commit -m "Add a newfile" +' + +test_expect_success 'avoid unnecessary update, dir->(file,nothing)' ' + git checkout -q master^0 && + test-chmtime =1000000000 df && + test-chmtime -v +0 df >expect && + git merge side && + test-chmtime -v +0 df >actual && + test_cmp expect actual # "df" should have stayed intact +' + +test_expect_success 'setup avoid unnecessary update, modify/delete' ' + git rm -rf . && + git clean -fdqx && + rm -rf .git && + git init && + + >irrelevant && + >file && + git add -A && + git commit -mA && + + git checkout -b side + git rm -f file && + git commit -m "Delete file" && + + git checkout master && + echo bla >file && + git add -A && + git commit -m "Modify file" +' + +test_expect_success 'avoid unnecessary update, modify/delete' ' + git checkout -q master^0 && + test-chmtime =1000000000 file && + test-chmtime -v +0 file >expect && + test_must_fail git merge side && + test-chmtime -v +0 file >actual && + test_cmp expect actual # "file" should have stayed intact +' + +test_expect_success 'setup avoid unnecessary update, rename/add-dest' ' + git rm -rf . && + git clean -fdqx && + rm -rf .git && + git init && + + printf "1\n2\n3\n4\n5\n6\n7\n8\n" >file && + git add -A && + git commit -mA && + + git checkout -b side + cp file newfile && + git add -A && + git commit -m "Add file copy" && + + git checkout master && + git mv file newfile && + git commit -m "Rename file" +' + +test_expect_success 'avoid unnecessary update, rename/add-dest' ' + git checkout -q master^0 && + test-chmtime =1000000000 newfile && + test-chmtime -v +0 newfile >expect && + git merge side && + test-chmtime -v +0 newfile >actual && + test_cmp expect actual # "file" should have stayed intact +' + +test_expect_success 'setup merge of rename + small change' ' + git reset --hard && + git checkout --orphan rename-plus-small-change && + git rm -rf . && + git clean -fdqx && + + echo ORIGINAL >file && + git add file && + + test_tick && + git commit -m Initial && + git checkout -b rename_branch && + git mv file renamed_file && + git commit -m Rename && + git checkout rename-plus-small-change && + echo NEW-VERSION >file && + git commit -a -m Reformat +' + +test_expect_success 'merge rename + small change' ' + git merge rename_branch && + + test 1 -eq $(git ls-files -s | wc -l) && + test 0 -eq $(git ls-files -o | wc -l) && + test $(git rev-parse HEAD:renamed_file) = $(git rev-parse HEAD~1:file) +' + +test_expect_success 'setup for use of extended merge markers' ' + git rm -rf . && + git clean -fdqx && + rm -rf .git && + git init && + + printf "1\n2\n3\n4\n5\n6\n7\n8\n" >original_file && + git add original_file && + git commit -mA && + + git checkout -b rename && + echo 9 >>original_file && + git add original_file && + git mv original_file renamed_file && + git commit -mB && + + git checkout master && + echo 8.5 >>original_file && + git add original_file && + git commit -mC +' + +cat >expected <<\EOF && +1 +2 +3 +4 +5 +6 +7 +8 +<<<<<<< HEAD:renamed_file +9 +======= +8.5 +>>>>>>> master^0:original_file +EOF + +test_expect_success 'merge master into rename has correct extended markers' ' + git checkout rename^0 && + test_must_fail git merge -s recursive master^0 && + test_cmp expected renamed_file +' + +cat >expected <<\EOF && +1 +2 +3 +4 +5 +6 +7 +8 +<<<<<<< HEAD:original_file +8.5 +======= +9 +>>>>>>> rename^0:renamed_file +EOF + +test_expect_success 'merge rename into master has correct extended markers' ' + git reset --hard && + git checkout master^0 && + test_must_fail git merge -s recursive rename^0 && + test_cmp expected renamed_file +' + +test_expect_success 'setup spurious "refusing to lose untracked" message' ' + git rm -rf . && + git clean -fdqx && + rm -rf .git && + git init && + + > irrelevant_file && + printf "1\n2\n3\n4\n5\n6\n7\n8\n" >original_file && + git add irrelevant_file original_file && + git commit -mA && + + git checkout -b rename && + git mv original_file renamed_file && + git commit -mB && + + git checkout master && + git rm original_file && + git commit -mC +' + +test_expect_success 'no spurious "refusing to lose untracked" message' ' + git checkout master^0 && + test_must_fail git merge rename^0 2>errors.txt && + ! grep "refusing to lose untracked file" errors.txt +' + +test_expect_success 'do not follow renames for empty files' ' + git checkout -f -b empty-base && + >empty1 && + git add empty1 && + git commit -m base && + echo content >empty1 && + git add empty1 && + git commit -m fill && + git checkout -b empty-topic HEAD^ && + git mv empty1 empty2 && + git commit -m rename && + test_must_fail git merge empty-base && + >expect && + test_cmp expect empty2 +' + +test_done |