From 18b59b28a5f67f9e87e7c88b13c9371109e32ad0 Mon Sep 17 00:00:00 2001
From: andrew-coleman <andrew_coleman@uk.ibm.com>
Date: Wed, 26 Feb 2020 08:06:51 +0000
Subject: [PATCH] unpack outer wrapper in $string()

Signed-off-by: andrew-coleman <andrew_coleman@uk.ibm.com>
---
 src/functions.js                                    | 3 +++
 test/test-suite/groups/function-string/case029.json | 6 ++++++
 2 files changed, 9 insertions(+)
 create mode 100644 test/test-suite/groups/function-string/case029.json

diff --git a/src/functions.js b/src/functions.js
index 39b7195e..e64d5ef3 100644
--- a/src/functions.js
+++ b/src/functions.js
@@ -126,6 +126,9 @@ const functions = (() => {
             };
         } else {
             var space = prettify ? 2 : 0;
+            if(Array.isArray(arg) && arg.outerWrapper) {
+                arg = arg[0];
+            }
             str = JSON.stringify(arg, function (key, val) {
                 return (typeof val !== 'undefined' && val !== null && val.toPrecision && isNumeric(val)) ? Number(val.toPrecision(15)) :
                     (val && isFunction(val)) ? '' : val;
diff --git a/test/test-suite/groups/function-string/case029.json b/test/test-suite/groups/function-string/case029.json
new file mode 100644
index 00000000..8423744e
--- /dev/null
+++ b/test/test-suite/groups/function-string/case029.json
@@ -0,0 +1,6 @@
+{
+    "expr": "$string()",
+    "data": [4, true],
+    "bindings": {},
+    "result": "[4,true]"
+}