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-rwxr-xr-xt/t0090-cache-tree.sh34
1 files changed, 34 insertions, 0 deletions
diff --git a/t/t0090-cache-tree.sh b/t/t0090-cache-tree.sh
index 601d02d71f..adfd4f0b5e 100755
--- a/t/t0090-cache-tree.sh
+++ b/t/t0090-cache-tree.sh
@@ -199,6 +199,30 @@ test_expect_success 'checkout -B gives cache-tree' '
test_cache_tree
'
+test_expect_success 'merge --ff-only maintains cache-tree' '
+ git checkout current &&
+ git checkout -b changes &&
+ test_commit llamas &&
+ test_commit pachyderm &&
+ test_cache_tree &&
+ git checkout current &&
+ test_cache_tree &&
+ git merge --ff-only changes &&
+ test_cache_tree
+'
+
+test_expect_success 'merge maintains cache-tree' '
+ git checkout current &&
+ git checkout -b changes2 &&
+ test_commit alpacas &&
+ test_cache_tree &&
+ git checkout current &&
+ test_commit struthio &&
+ test_cache_tree &&
+ git merge changes2 &&
+ test_cache_tree
+'
+
test_expect_success 'partial commit gives cache-tree' '
git checkout -b partial no-children &&
test_commit one &&
@@ -218,4 +242,14 @@ test_expect_success 'no phantom error when switching trees' '
! test -s errors
'
+test_expect_success 'switching trees does not invalidate shared index' '
+ git update-index --split-index &&
+ >split &&
+ git add split &&
+ test-dump-split-index .git/index | grep -v ^own >before &&
+ git commit -m "as-is" &&
+ test-dump-split-index .git/index | grep -v ^own >after &&
+ test_cmp before after
+'
+
test_done