From ab02c6ff4736864106b05efa201cf385274219c7 Mon Sep 17 00:00:00 2001
From: Daniel Price <dp@dssd.com>
Date: Fri, 15 May 2015 11:46:05 -0700
Subject: [PATCH] Issue #442 chai can't cope with AssertionErrors raised from
 node's assert

---
 lib/chai/core/assertions.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/chai/core/assertions.js b/lib/chai/core/assertions.js
index dd67ba336..f2f0f3034 100644
--- a/lib/chai/core/assertions.js
+++ b/lib/chai/core/assertions.js
@@ -1227,9 +1227,9 @@ module.exports = function (chai, _) {
       constructor = null;
       errMsg = null;
     } else if (typeof constructor === 'function') {
-      name = constructor.prototype.name || constructor.name;
-      if (name === 'Error' && constructor !== Error) {
-        name = (new constructor()).name;
+      name = constructor.prototype.name;
+      if (!name || (name === 'Error' && constructor !== Error)) {
+        name = constructor.name || (new constructor()).name;
       }
     } else {
       constructor = null;