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-rw-r--r--Test/D03procsubst.ztst8
1 files changed, 8 insertions, 0 deletions
diff --git a/Test/D03procsubst.ztst b/Test/D03procsubst.ztst
index 9ab67c2b4..ca8d56ff5 100644
--- a/Test/D03procsubst.ztst
+++ b/Test/D03procsubst.ztst
@@ -141,3 +141,11 @@
 0:proc subst fd in forked subshell closed in parent
 >1
 >1
+
+  if [[ ! -e test_pipe ]]; then
+    ZTST_skip="mkfifo not available"
+  else
+    echo 1 | tee >(cat > test_pipe) | paste - test_pipe
+  fi
+0:proc subst fd in forked subshell closed in parent (external command)
+>1	1