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

node_modules/@sinonjs/samsam/lib/is-element.js

@@ -0,0 +1,27 @@
+"use strict";
+
+var div = typeof document !== "undefined" && document.createElement("div");
+
+/**
+ * @name samsam.isElement
+ * @param Object object
+ *
+ * Returns ``true`` if ``object`` is a DOM element node. Unlike
+ * Underscore.js/lodash, this function will return ``false`` if ``object``
+ * is an *element-like* object, i.e. a regular object with a ``nodeType``
+ * property that holds the value ``1``.
+ */
+function isElement(object) {
+    if (!object || object.nodeType !== 1 || !div) {
+        return false;
+    }
+    try {
+        object.appendChild(div);
+        object.removeChild(div);
+    } catch (e) {
+        return false;
+    }
+    return true;
+}
+
+module.exports = isElement;