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

node_modules/@sinonjs/samsam/lib/identical.js

@@ -0,0 +1,25 @@
+"use strict";
+
+var isNaN = require("./is-nan");
+var isNegZero = require("./is-neg-zero");
+
+/**
+ * @name samsam.equal
+ * @param Object obj1
+ * @param Object obj2
+ *
+ * Returns ``true`` if two objects are strictly equal. Compared to
+ * ``===`` there are two exceptions:
+ *
+ *   - NaN is considered equal to NaN
+ *   - -0 and +0 are not considered equal
+ */
+function identical(obj1, obj2) {
+    if (obj1 === obj2 || (isNaN(obj1) && isNaN(obj2))) {
+        return obj1 !== 0 || isNegZero(obj1) === isNegZero(obj2);
+    }
+
+    return false;
+}
+
+module.exports = identical;