This once again does NOT compile. I've done work on macros; they don't work yet..

unit-tests/empty-string.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+expected="\"\""
+actual=`echo '""' | target/psse 2>/dev/null | tail -1`
+
+if [ "$expected" = "$actual" ]
+then
+    echo "OK"
+    exit 0
+else
+    echo "Fail: expected '$expected', got '$actual'"
+    exit 1
+fi