[test] Added test supplied by @joewiz

Author: adamretter

exist-core/src/test/xquery/util/eval-with-context.xql

@@ -34,4 +34,10 @@ function ut:timeout() {
         </static-context>
     return
         util:eval-with-context("util:wait(2), <ok/>", $context, false() )
-};
+};
+
+declare
+    %test:assertEquals(1)
+function ut:root-node() {
+    util:eval-with-context('count(/)', (), false(), document { <x/> })
+};