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https://github.com/git/git.git
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889c6f0e4d
There are many instances where the treatment of symbolic links in the object model and the algorithms are tested, but where it is not necessary to actually have a symbolic link in the worktree. Make adjustments to the tests and remove the SYMLINKS prerequisite when appropriate in trivial cases, where "trivial" means: - merely a replacement of 'ln -s a b && git add b' by test_ln_s_add is needed; - a test for symbolic link on the file system can be split off (and remains protected by SYMLINKS); - existing code is equivalent to test_ln_s_add. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
192 lines
4.5 KiB
Bash
Executable file
192 lines
4.5 KiB
Bash
Executable file
#!/bin/sh
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test_description='git-merge
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Do not overwrite changes.'
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. ./test-lib.sh
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test_expect_success 'setup' '
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test_commit c0 c0.c &&
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test_commit c1 c1.c &&
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test_commit c1a c1.c "c1 a" &&
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git reset --hard c0 &&
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test_commit c2 c2.c &&
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git reset --hard c0 &&
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mkdir sub &&
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echo "sub/f" > sub/f &&
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mkdir sub2 &&
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echo "sub2/f" > sub2/f &&
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git add sub/f sub2/f &&
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git commit -m sub &&
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git tag sub &&
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echo "VERY IMPORTANT CHANGES" > important
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'
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test_expect_success 'will not overwrite untracked file' '
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git reset --hard c1 &&
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cp important c2.c &&
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test_must_fail git merge c2 &&
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test_path_is_missing .git/MERGE_HEAD &&
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test_cmp important c2.c
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'
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test_expect_success 'will overwrite tracked file' '
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git reset --hard c1 &&
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cp important c2.c &&
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git add c2.c &&
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git commit -m important &&
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git checkout c2
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'
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test_expect_success 'will not overwrite new file' '
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git reset --hard c1 &&
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cp important c2.c &&
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git add c2.c &&
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test_must_fail git merge c2 &&
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test_path_is_missing .git/MERGE_HEAD &&
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test_cmp important c2.c
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'
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test_expect_success 'will not overwrite staged changes' '
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git reset --hard c1 &&
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cp important c2.c &&
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git add c2.c &&
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rm c2.c &&
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test_must_fail git merge c2 &&
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test_path_is_missing .git/MERGE_HEAD &&
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git checkout c2.c &&
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test_cmp important c2.c
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'
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test_expect_success 'will not overwrite removed file' '
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git reset --hard c1 &&
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git rm c1.c &&
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git commit -m "rm c1.c" &&
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cp important c1.c &&
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test_must_fail git merge c1a &&
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test_cmp important c1.c
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'
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test_expect_success 'will not overwrite re-added file' '
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git reset --hard c1 &&
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git rm c1.c &&
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git commit -m "rm c1.c" &&
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cp important c1.c &&
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git add c1.c &&
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test_must_fail git merge c1a &&
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test_path_is_missing .git/MERGE_HEAD &&
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test_cmp important c1.c
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'
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test_expect_success 'will not overwrite removed file with staged changes' '
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git reset --hard c1 &&
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git rm c1.c &&
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git commit -m "rm c1.c" &&
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cp important c1.c &&
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git add c1.c &&
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rm c1.c &&
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test_must_fail git merge c1a &&
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test_path_is_missing .git/MERGE_HEAD &&
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git checkout c1.c &&
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test_cmp important c1.c
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'
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test_expect_failure 'will not overwrite unstaged changes in renamed file' '
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git reset --hard c1 &&
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git mv c1.c other.c &&
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git commit -m rename &&
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cp important other.c &&
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git merge c1a &&
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test_cmp important other.c
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'
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test_expect_success 'will not overwrite untracked subtree' '
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git reset --hard c0 &&
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rm -rf sub &&
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mkdir -p sub/f &&
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cp important sub/f/important &&
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test_must_fail git merge sub &&
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test_path_is_missing .git/MERGE_HEAD &&
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test_cmp important sub/f/important
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'
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cat >expect <<\EOF
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error: The following untracked working tree files would be overwritten by merge:
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sub
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sub2
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Please move or remove them before you can merge.
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Aborting
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EOF
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test_expect_success 'will not overwrite untracked file in leading path' '
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git reset --hard c0 &&
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rm -rf sub &&
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cp important sub &&
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cp important sub2 &&
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test_must_fail git merge sub 2>out &&
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test_cmp out expect &&
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test_path_is_missing .git/MERGE_HEAD &&
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test_cmp important sub &&
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test_cmp important sub2 &&
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rm -f sub sub2
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'
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test_expect_success SYMLINKS 'will not overwrite untracked symlink in leading path' '
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git reset --hard c0 &&
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rm -rf sub &&
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mkdir sub2 &&
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ln -s sub2 sub &&
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test_must_fail git merge sub &&
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test_path_is_missing .git/MERGE_HEAD
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'
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test_expect_success 'will not be confused by symlink in leading path' '
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git reset --hard c0 &&
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rm -rf sub &&
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test_ln_s_add sub2 sub &&
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git commit -m ln &&
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git checkout sub
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'
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cat >expect <<\EOF
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error: Untracked working tree file 'c0.c' would be overwritten by merge.
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fatal: read-tree failed
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EOF
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test_expect_success 'will not overwrite untracked file on unborn branch' '
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git reset --hard c0 &&
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git rm -fr . &&
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git checkout --orphan new &&
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cp important c0.c &&
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test_must_fail git merge c0 2>out &&
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test_i18ncmp out expect
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'
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test_expect_success 'will not overwrite untracked file on unborn branch .git/MERGE_HEAD sanity etc.' '
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test_when_finished "rm c0.c" &&
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test_path_is_missing .git/MERGE_HEAD &&
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test_cmp important c0.c
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'
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test_expect_success 'failed merge leaves unborn branch in the womb' '
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test_must_fail git rev-parse --verify HEAD
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'
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test_expect_success 'set up unborn branch and content' '
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git symbolic-ref HEAD refs/heads/unborn &&
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rm -f .git/index &&
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echo foo > tracked-file &&
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git add tracked-file &&
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echo bar > untracked-file
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'
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test_expect_success 'will not clobber WT/index when merging into unborn' '
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git merge master &&
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grep foo tracked-file &&
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git show :tracked-file >expect &&
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grep foo expect &&
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grep bar untracked-file
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'
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test_done
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