From 88c42a2ba0f0baa9fd20bb7abddc2ad89b66a508 Mon Sep 17 00:00:00 2001
From: Peter Stephenson <p.w.stephenson@ntlworld.com>
Date: Sun, 30 Oct 2016 17:12:04 +0000
Subject: 39777: $() is a valid empty command substitution

---
 Test/D08cmdsubst.ztst | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'Test')

diff --git a/Test/D08cmdsubst.ztst b/Test/D08cmdsubst.ztst
index 89e725966..362537349 100644
--- a/Test/D08cmdsubst.ztst
+++ b/Test/D08cmdsubst.ztst
@@ -153,3 +153,17 @@
   eval 'foo echo this just works, OK\?)'
 0:backtracking within command string parsing with alias still pending
 >this just works, OK?
+
+  (
+    set errexit
+    show_nargs() { print $#; }
+    print a $() b
+    print c "$()" d
+  )
+0:Empty $() is a valid empty substitution.
+>a b
+>c  d
+
+  empty=$() && print "'$empty'"
+0:Empty $() is a valid assignment
+>''
-- 
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