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-rwxr-xr-xt/t3430-rebase-merges.sh8
1 files changed, 8 insertions, 0 deletions
diff --git a/t/t3430-rebase-merges.sh b/t/t3430-rebase-merges.sh
index e9c5dc1cd9..1628c8dcc2 100755
--- a/t/t3430-rebase-merges.sh
+++ b/t/t3430-rebase-merges.sh
@@ -215,4 +215,12 @@ test_expect_success 'post-rewrite hook and fixups work for merges' '
test_cmp expect actual
'
+test_expect_success 'refuse to merge ancestors of HEAD' '
+ echo "merge HEAD^" >script-from-scratch &&
+ test_config -C wt sequence.editor \""$PWD"/replace-editor.sh\" &&
+ before="$(git rev-parse HEAD)" &&
+ git rebase -i HEAD &&
+ test_cmp_rev HEAD $before
+'
+
test_done