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t6424: make sure a failed merge preserves local changes

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We do make sure that an attempt to merge with various forms of local
changes will "fail", but the point of stopping the merge is so that
we refrain from discarding uncommitted local changes that could be
precious.  Add a few more checks for each case to make sure the
local changes are left intact.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano 2022-05-19 11:59:53 -07:00
parent d516b2db0a
commit 4b317450ce
1 changed files with 30 additions and 2 deletions
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32
t/t6424-merge-unrelated-index-changes.sh
View file

@ -71,7 +71,9 @@ test_expect_success 'ff update' '
git merge E^0 &&
test_must_fail git rev-parse HEAD:random_file &&
test "$(git diff --name-only --cached E)" = "random_file"
test "$(git diff --name-only --cached E)" = "random_file" &&
test_path_is_file random_file &&
git rev-parse --verify :random_file
'
test_expect_success 'ff update, important file modified' '
@ -83,6 +85,8 @@ test_expect_success 'ff update, important file modified' '
git add subdir/e &&
test_must_fail git merge E^0 &&
test_path_is_file subdir/e &&
git rev-parse --verify :subdir/e &&
test_path_is_missing .git/MERGE_HEAD
'
@ -93,6 +97,8 @@ test_expect_success 'resolve, trivial' '
touch random_file && git add random_file &&
test_must_fail git merge -s resolve C^0 &&
test_path_is_file random_file &&
git rev-parse --verify :random_file &&
test_path_is_missing .git/MERGE_HEAD
'
@ -103,6 +109,8 @@ test_expect_success 'resolve, non-trivial' '
touch random_file && git add random_file &&
test_must_fail git merge -s resolve D^0 &&
test_path_is_file random_file &&
git rev-parse --verify :random_file &&
test_path_is_missing .git/MERGE_HEAD
'
@ -113,6 +121,8 @@ test_expect_success 'recursive' '
touch random_file && git add random_file &&
test_must_fail git merge -s recursive C^0 &&
test_path_is_file random_file &&
git rev-parse --verify :random_file &&
test_path_is_missing .git/MERGE_HEAD
'
@ -145,9 +155,12 @@ test_expect_success 'recursive, when file has staged changes not matching HEAD n
mkdir subdir &&
test_seq 1 10 >subdir/a &&
git add subdir/a &&
git rev-parse --verify :subdir/a >expect &&
# We have staged changes; merge should error out
test_must_fail git merge -s recursive E^0 2>err &&
git rev-parse --verify :subdir/a >actual &&
test_cmp expect actual &&
test_i18ngrep "changes to the following files would be overwritten" err
'
@ -158,9 +171,12 @@ test_expect_success 'recursive, when file has staged changes matching what a mer
mkdir subdir &&
test_seq 1 11 >subdir/a &&
git add subdir/a &&
git rev-parse --verify :subdir/a >expect &&
# We have staged changes; merge should error out
test_must_fail git merge -s recursive E^0 2>err &&
git rev-parse --verify :subdir/a >actual &&
test_cmp expect actual &&
test_i18ngrep "changes to the following files would be overwritten" err
'
@ -171,7 +187,9 @@ test_expect_success 'octopus, unrelated file touched' '
touch random_file && git add random_file &&
test_must_fail git merge C^0 D^0 &&
test_path_is_missing .git/MERGE_HEAD
test_path_is_missing .git/MERGE_HEAD &&
git rev-parse --verify :random_file &&
test_path_exists random_file
'
test_expect_success 'octopus, related file removed' '
@ -181,6 +199,8 @@ test_expect_success 'octopus, related file removed' '
git rm b &&
test_must_fail git merge C^0 D^0 &&
test_path_is_missing b &&
test_must_fail git rev-parse --verify :b &&
test_path_is_missing .git/MERGE_HEAD
'
@ -189,8 +209,12 @@ test_expect_success 'octopus, related file modified' '
git checkout B^0 &&
echo 12 >>a && git add a &&
git rev-parse --verify :a >expect &&
test_must_fail git merge C^0 D^0 &&
test_path_is_file a &&
git rev-parse --verify :a >actual &&
test_cmp expect actual &&
test_path_is_missing .git/MERGE_HEAD
'
@ -201,6 +225,8 @@ test_expect_success 'ours' '
touch random_file && git add random_file &&
test_must_fail git merge -s ours C^0 &&
test_path_is_file random_file &&
git rev-parse --verify :random_file &&
test_path_is_missing .git/MERGE_HEAD
'
@ -211,6 +237,8 @@ test_expect_success 'subtree' '
touch random_file && git add random_file &&
test_must_fail git merge -s subtree E^0 &&
test_path_is_file random_file &&
git rev-parse --verify :random_file &&
test_path_is_missing .git/MERGE_HEAD
'