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-rwxr-xr-xt/t6044-merge-unrelated-index-changes.sh91
1 files changed, 77 insertions, 14 deletions
diff --git a/t/t6044-merge-unrelated-index-changes.sh b/t/t6044-merge-unrelated-index-changes.sh
index 0102348..5e3779e 100755
--- a/t/t6044-merge-unrelated-index-changes.sh
+++ b/t/t6044-merge-unrelated-index-changes.sh
@@ -6,18 +6,21 @@ test_description="merges with unrelated index changes"
# Testcase for some simple merges
# A
-# o-----o B
+# o-------o B
# \
-# \---o C
+# \-----o C
# \
-# \-o D
+# \---o D
# \
-# o E
+# \-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 &&
@@ -29,6 +32,7 @@ test_expect_success 'setup trivial merges' '
git branch C &&
git branch D &&
git branch E &&
+ git branch F &&
git checkout B &&
echo b >b &&
@@ -52,7 +56,10 @@ test_expect_success 'setup trivial merges' '
git mv a subdir/a &&
echo e >subdir/e &&
git add subdir &&
- test_tick && git commit -m E
+ test_tick && git commit -m E &&
+
+ git checkout F &&
+ test_tick && git commit --allow-empty -m F
'
test_expect_success 'ff update' '
@@ -75,7 +82,8 @@ test_expect_success 'ff update, important file modified' '
touch subdir/e &&
git add subdir/e &&
- test_must_fail git merge E^0
+ test_must_fail git merge E^0 &&
+ test_path_is_missing .git/MERGE_HEAD
'
test_expect_success 'resolve, trivial' '
@@ -84,7 +92,8 @@ test_expect_success 'resolve, trivial' '
touch random_file && git add random_file &&
- test_must_fail git merge -s resolve C^0
+ test_must_fail git merge -s resolve C^0 &&
+ test_path_is_missing .git/MERGE_HEAD
'
test_expect_success 'resolve, non-trivial' '
@@ -93,7 +102,8 @@ test_expect_success 'resolve, non-trivial' '
touch random_file && git add random_file &&
- test_must_fail git merge -s resolve D^0
+ test_must_fail git merge -s resolve D^0 &&
+ test_path_is_missing .git/MERGE_HEAD
'
test_expect_success 'recursive' '
@@ -102,7 +112,55 @@ test_expect_success 'recursive' '
touch random_file && git add random_file &&
- test_must_fail git merge -s recursive C^0
+ 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' '
@@ -111,7 +169,8 @@ test_expect_success 'octopus, unrelated file touched' '
touch random_file && git add random_file &&
- test_must_fail git merge C^0 D^0
+ test_must_fail git merge C^0 D^0 &&
+ test_path_is_missing .git/MERGE_HEAD
'
test_expect_success 'octopus, related file removed' '
@@ -120,7 +179,8 @@ test_expect_success 'octopus, related file removed' '
git rm b &&
- test_must_fail git merge C^0 D^0
+ test_must_fail git merge C^0 D^0 &&
+ test_path_is_missing .git/MERGE_HEAD
'
test_expect_success 'octopus, related file modified' '
@@ -129,7 +189,8 @@ test_expect_success 'octopus, related file modified' '
echo 12 >>a && git add a &&
- test_must_fail git merge C^0 D^0
+ test_must_fail git merge C^0 D^0 &&
+ test_path_is_missing .git/MERGE_HEAD
'
test_expect_success 'ours' '
@@ -138,7 +199,8 @@ test_expect_success 'ours' '
touch random_file && git add random_file &&
- test_must_fail git merge -s ours C^0
+ test_must_fail git merge -s ours C^0 &&
+ test_path_is_missing .git/MERGE_HEAD
'
test_expect_success 'subtree' '
@@ -147,7 +209,8 @@ test_expect_success 'subtree' '
touch random_file && git add random_file &&
- test_must_fail git merge -s subtree E^0
+ test_must_fail git merge -s subtree E^0 &&
+ test_path_is_missing .git/MERGE_HEAD
'
test_done