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

node_modules/@sinonjs/samsam/lib/get-class-name.js

@@ -0,0 +1,22 @@
+"use strict";
+
+var valueToString = require("@sinonjs/commons").valueToString;
+
+var re = /function (\w+)\s*\(/;
+
+function getClassName(value) {
+    if (value.constructor && "name" in value.constructor) {
+        return value.constructor.name;
+    }
+
+    if (typeof value.constructor === "function") {
+        var match = valueToString(value.constructor).match(re);
+        if (match.length > 1) {
+            return match[1];
+        }
+    }
+
+    return null;
+}
+
+module.exports = getClassName;