From 36f47a31fa94a9cd06c6719c5c8ff033916b203d Mon Sep 17 00:00:00 2001
From: Dan Vanderkam <dan@dygraphs.com>
Date: Sun, 12 Jun 2011 23:13:53 -0400
Subject: [PATCH] fix NaN == NaN comparison in Asserts.js

---
 auto_tests/lib/Asserts.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/auto_tests/lib/Asserts.js b/auto_tests/lib/Asserts.js
index b3ed441..b06ff29 100644
--- a/auto_tests/lib/Asserts.js
+++ b/auto_tests/lib/Asserts.js
@@ -178,6 +178,11 @@ function compare_(expected, actual) {
     return false;
   }
 
+  if (isNaN(expected) && isNaN(actual)) {
+    // This has to be special-cased because (NaN === NaN) == false.
+    return true;
+  }
+
   var key = null;
   var actualLength   = 0;
   var expectedLength = 0;
-- 
2.7.4