add test

source/Ox/js/Type.js

@@ -31,6 +31,8 @@ Ox.isArray <f> Tests if a value is an array
     true
     > Ox.isArray((function() { return arguments; }()))
     false
+    > Ox.isArray(document.getElementsByTagName('a'))
+    false
     > Ox.isArray({0: 0, length: 1})
     false
 @*/
@@ -144,7 +146,7 @@ Ox.isEqual = function(a, b) {
             ret = a.global == b.global && a.ignore == b.ignore
                 && a.multiline == b.multiline && a.source == b.source;
         } else if (
-            ['arguments', 'array', 'object'].indexOf(type) > -1
+            (type == 'arguments' || type == 'array' || type == 'object')
             && Ox.len(a) == Ox.len(b)
         ) {
             ret = true;