tests: extend csplit-io-err.sh for directory

* tests/csplit/csplit-io-err.sh: Add a test case
to ensure a directory is _not_ replaced.

diff --git a/tests/csplit/csplit-io-err.sh b/tests/csplit/csplit-io-err.sh
index 358d937ce836c6d35dda3105da6f07322e810e7a..d853f8bff2e434c10c24d34a8128803d627d9125 100755 (executable)
--- a/tests/csplit/csplit-io-err.sh
+++ b/tests/csplit/csplit-io-err.sh
@@ -36,4 +36,9 @@ test -e xx01 && fail=1
 # Ensure we got the expected error message
 compare exp err || fail=1
 
+# csplit does not remove xx01 directory
+mkdir xx01 || framework_failure_
+seq 2 | returns_ 1 csplit - 1 || fail=1
+test -d xx01 || fail=1
+
 Exit $fail