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-rwxr-xr-xt/t7600-merge.sh35
1 files changed, 34 insertions, 1 deletions
diff --git a/t/t7600-merge.sh b/t/t7600-merge.sh
index b16462132f..302e238263 100755
--- a/t/t7600-merge.sh
+++ b/t/t7600-merge.sh
@@ -133,7 +133,7 @@ test_expect_success 'setup' '
test_tick &&
git commit -m "commit 3" &&
git tag c3 &&
- c3=$(git rev-parse HEAD)
+ c3=$(git rev-parse HEAD) &&
git reset --hard "$c0" &&
create_merge_msgs
'
@@ -692,4 +692,37 @@ test_expect_success GPG 'merge --no-edit tag should skip editor' '
test_cmp actual expect
'
+test_expect_success 'set up mod-256 conflict scenario' '
+ # 256 near-identical stanzas...
+ for i in $(test_seq 1 256); do
+ for j in 1 2 3 4 5; do
+ echo $i-$j
+ done
+ done >file &&
+ git add file &&
+ git commit -m base &&
+
+ # one side changes the first line of each to "master"
+ sed s/-1/-master/ <file >tmp &&
+ mv tmp file &&
+ git commit -am master &&
+
+ # and the other to "side"; merging the two will
+ # yield 256 separate conflicts
+ git checkout -b side HEAD^ &&
+ sed s/-1/-side/ <file >tmp &&
+ mv tmp file &&
+ git commit -am side
+'
+
+test_expect_success 'merge detects mod-256 conflicts (recursive)' '
+ git reset --hard &&
+ test_must_fail git merge -s recursive master
+'
+
+test_expect_success 'merge detects mod-256 conflicts (resolve)' '
+ git reset --hard &&
+ test_must_fail git merge -s resolve master
+'
+
test_done