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Diffstat (limited to 'third_party/git/t/t6044-merge-unrelated-index-changes.sh')
| -rwxr-xr-x | third_party/git/t/t6044-merge-unrelated-index-changes.sh | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/third_party/git/t/t6044-merge-unrelated-index-changes.sh b/third_party/git/t/t6044-merge-unrelated-index-changes.sh new file mode 100755 index 000000000000..5e3779ebc931 --- /dev/null +++ b/third_party/git/t/t6044-merge-unrelated-index-changes.sh @@ -0,0 +1,216 @@ +#!/bin/sh + +test_description="merges with unrelated index changes" + +. ./test-lib.sh + +# Testcase for some simple merges +# A +# o-------o B +# \ +# \-----o C +# \ +# \---o D +# \ +# \-o E +# \ +# o F +# Commit A: some file a +# Commit B: adds file b, modifies end of a +# Commit C: adds file c +# Commit D: adds file d, modifies beginning of a +# Commit E: renames a->subdir/a, adds subdir/e +# Commit F: empty commit + +test_expect_success 'setup trivial merges' ' + test_seq 1 10 >a && + git add a && + test_tick && git commit -m A && + + git branch A && + git branch B && + git branch C && + git branch D && + git branch E && + git branch F && + + git checkout B && + echo b >b && + echo 11 >>a && + git add a b && + test_tick && git commit -m B && + + git checkout C && + echo c >c && + git add c && + test_tick && git commit -m C && + + git checkout D && + test_seq 2 10 >a && + echo d >d && + git add a d && + test_tick && git commit -m D && + + git checkout E && + mkdir subdir && + git mv a subdir/a && + echo e >subdir/e && + git add subdir && + test_tick && git commit -m E && + + git checkout F && + test_tick && git commit --allow-empty -m F +' + +test_expect_success 'ff update' ' + git reset --hard && + git checkout A^0 && + + touch random_file && git add random_file && + + git merge E^0 && + + test_must_fail git rev-parse HEAD:random_file && + test "$(git diff --name-only --cached E)" = "random_file" +' + +test_expect_success 'ff update, important file modified' ' + git reset --hard && + git checkout A^0 && + + mkdir subdir && + touch subdir/e && + git add subdir/e && + + test_must_fail git merge E^0 && + test_path_is_missing .git/MERGE_HEAD +' + +test_expect_success 'resolve, trivial' ' + git reset --hard && + git checkout B^0 && + + touch random_file && git add random_file && + + test_must_fail git merge -s resolve C^0 && + test_path_is_missing .git/MERGE_HEAD +' + +test_expect_success 'resolve, non-trivial' ' + git reset --hard && + git checkout B^0 && + + touch random_file && git add random_file && + + test_must_fail git merge -s resolve D^0 && + test_path_is_missing .git/MERGE_HEAD +' + +test_expect_success 'recursive' ' + git reset --hard && + git checkout B^0 && + + touch random_file && git add random_file && + + test_must_fail git merge -s recursive C^0 && + test_path_is_missing .git/MERGE_HEAD +' + +test_expect_success 'recursive, when merge branch matches merge base' ' + git reset --hard && + git checkout B^0 && + + touch random_file && git add random_file && + + test_must_fail git merge -s recursive F^0 && + test_path_is_missing .git/MERGE_HEAD +' + +test_expect_success 'merge-recursive, when index==head but head!=HEAD' ' + git reset --hard && + git checkout C^0 && + + # Make index match B + git diff C B -- | git apply --cached && + # Merge B & F, with B as "head" + git merge-recursive A -- B F > out && + test_i18ngrep "Already up to date" out +' + +test_expect_success 'recursive, when file has staged changes not matching HEAD nor what a merge would give' ' + git reset --hard && + git checkout B^0 && + + mkdir subdir && + test_seq 1 10 >subdir/a && + git add subdir/a && + + # We have staged changes; merge should error out + test_must_fail git merge -s recursive E^0 2>err && + test_i18ngrep "changes to the following files would be overwritten" err +' + +test_expect_success 'recursive, when file has staged changes matching what a merge would give' ' + git reset --hard && + git checkout B^0 && + + mkdir subdir && + test_seq 1 11 >subdir/a && + git add subdir/a && + + # We have staged changes; merge should error out + test_must_fail git merge -s recursive E^0 2>err && + test_i18ngrep "changes to the following files would be overwritten" err +' + +test_expect_success 'octopus, unrelated file touched' ' + git reset --hard && + git checkout B^0 && + + touch random_file && git add random_file && + + test_must_fail git merge C^0 D^0 && + test_path_is_missing .git/MERGE_HEAD +' + +test_expect_success 'octopus, related file removed' ' + git reset --hard && + git checkout B^0 && + + git rm b && + + test_must_fail git merge C^0 D^0 && + test_path_is_missing .git/MERGE_HEAD +' + +test_expect_success 'octopus, related file modified' ' + git reset --hard && + git checkout B^0 && + + echo 12 >>a && git add a && + + test_must_fail git merge C^0 D^0 && + test_path_is_missing .git/MERGE_HEAD +' + +test_expect_success 'ours' ' + git reset --hard && + git checkout B^0 && + + touch random_file && git add random_file && + + test_must_fail git merge -s ours C^0 && + test_path_is_missing .git/MERGE_HEAD +' + +test_expect_success 'subtree' ' + git reset --hard && + git checkout B^0 && + + touch random_file && git add random_file && + + test_must_fail git merge -s subtree E^0 && + test_path_is_missing .git/MERGE_HEAD +' + +test_done |