added unit testing, and started implementing unit tests...phew

node_modules/@sinonjs/commons/lib/value-to-string.js

@@ -0,0 +1,11 @@
+"use strict";
+
+function valueToString(value) {
+    if (value && value.toString) {
+        /* eslint-disable-next-line local-rules/no-prototype-methods */
+        return value.toString();
+    }
+    return String(value);
+}
+
+module.exports = valueToString;