t4200: demonstrate rerere segfault on specially crafted merge

diff --git a/t/t0001-init.sh b/t/t0001-init.sh
index 86c1a51654fa6c1b049a313fe8d880c6a266ee62..c413bff9cf1f3a79ef494b39844c42d3a8c877f1 100755 (executable)
--- a/t/t0001-init.sh
+++ b/t/t0001-init.sh
@@ -453,4 +453,16 @@ test_expect_success 're-init from a linked worktree' '
        )
 '
 
+test_expect_success MINGW 'redirect std handles' '
+       GIT_REDIRECT_STDOUT=output.txt git rev-parse --git-dir &&
+       test .git = "$(cat output.txt)" &&
+       test -z "$(GIT_REDIRECT_STDOUT=off git rev-parse --git-dir)" &&
+       test_must_fail env \
+               GIT_REDIRECT_STDOUT=output.txt \
+               GIT_REDIRECT_STDERR="2>&1" \
+               git rev-parse --git-dir --verify refs/invalid &&
+       printf ".git\nfatal: Needed a single revision\n" >expect &&
+       test_cmp expect output.txt
+'
+
 test_done