From 460925c2c65af3ba25bff4cfaacfc9f3bfd603b9 Mon Sep 17 00:00:00 2001
From: hokaccha <k.hokamura@gmail.com>
Date: Wed, 25 Jan 2012 18:01:59 +0900
Subject: [PATCH] Fix bug `indexOf`. when arr is number, it was return 0

---
 expect.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/expect.js b/expect.js
index b394de6..26e95fe 100644
--- a/expect.js
+++ b/expect.js
@@ -449,6 +449,10 @@
       return Array.prototype.indexOf.call(arr, o, i);
     }
 
+    if (arr.length === undefined) {
+      return -1;
+    }
+
     for (var j = arr.length, i = i < 0 ? i + j < 0 ? 0 : i + j : i || 0
         ; i < j && arr[i] !== o; i++);