diff --git a/Specs/SpecRunner.js b/Specs/SpecRunner.js
index e6b9c11d4a7e..ac89bb624867 100644
--- a/Specs/SpecRunner.js
+++ b/Specs/SpecRunner.js
@@ -83,10 +83,16 @@ var defineSuite;
     }
 
     //specs is an array defined by SpecList.js
-    require(['Specs/addDefaultMatchers'].concat(specs), function(addDefaultMatchers) {
+    require([
+             'Specs/addDefaultMatchers',
+             'Specs/equalsMethodEqualityTester'
+         ].concat(specs), function(
+             addDefaultMatchers,
+             equalsMethodEqualityTester) {
         var env = jasmine.getEnv();
 
         env.beforeEach(addDefaultMatchers);
+        env.addEqualityTester(equalsMethodEqualityTester);
 
         createTests = function() {
             var isSuiteFocused = jasmine.TrivialReporter.isSuiteFocused;
diff --git a/Specs/addDefaultMatchers.js b/Specs/addDefaultMatchers.js
index ac876242552f..5977275d1833 100644
--- a/Specs/addDefaultMatchers.js
+++ b/Specs/addDefaultMatchers.js
@@ -2,23 +2,6 @@
 define(function() {
     "use strict";
 
-    function isEqual(a, b) {
-        if (a === b) {
-            return true;
-        }
-        if (a !== null && typeof a !== 'undefined' && typeof a.equals !== 'undefined') {
-            return a.equals(b);
-        }
-        if (b !== null && typeof b !== 'undefined' && typeof b.equals !== 'undefined') {
-            return b.equals(a);
-        }
-
-        if (a !== null && b !== null && typeof a !== 'undefined' && typeof b !== 'undefined') {
-            return a.toString() === b.toString();
-        }
-        return false;
-    }
-
     function isEqualEpsilon(a, b, epsilon) {
         if (typeof a !== 'undefined' && typeof a.equalsEpsilon !== 'undefined') {
             return a.equalsEpsilon(b, epsilon);
@@ -32,16 +15,8 @@ define(function() {
             return false;
         }
 
-        if (!f) {
-            f = isEqual;
-        }
-
-        var args = new Array(2).concat(Array.prototype.slice.call(arguments, 3));
-
         for ( var i = 0; i < a.length; i++) {
-            args[0] = a[i];
-            args[1] = b[i];
-            if (!f.apply(null, args)) {
+            if (!f(a[i], b[i])) {
                 return false;
             }
         }
@@ -83,12 +58,8 @@ define(function() {
                 return this.actual <= value;
             },
 
-            toEqual : function(expected) {
-                return isEqual(this.actual, expected);
-            },
-
             toEqualArray : function(expected) {
-                return isArrayEqual(this.actual, expected);
+                return isArrayEqual(this.actual, expected, this.env.equals_.bind(this.env));
             },
 
             toEqualEpsilon : function(expected, epsilon) {
@@ -96,7 +67,9 @@ define(function() {
             },
 
             toEqualArrayEpsilon : function(expected, epsilon) {
-                return isArrayEqual(this.actual, expected, isEqualEpsilon, epsilon);
+                return isArrayEqual(this.actual, expected, function(a, b) {
+                    return isEqualEpsilon(a, b, epsilon);
+                });
             },
 
             toBeBetween : function(lower, upper) {
diff --git a/Specs/equalsMethodEqualityTester.js b/Specs/equalsMethodEqualityTester.js
new file mode 100755
index 000000000000..a4305c03c885
--- /dev/null
+++ b/Specs/equalsMethodEqualityTester.js
@@ -0,0 +1,18 @@
+/*global define*/
+define(function() {
+    "use strict";
+
+    return function(a, b) {
+        // if either a or b have an equals method, call it.
+        if (a !== null && typeof a !== 'undefined' && typeof a.equals === 'function') {
+            return a.equals(b);
+        }
+
+        if (b !== null && typeof b !== 'undefined' && typeof b.equals === 'function') {
+            return b.equals(a);
+        }
+
+        // fall back to default equality checks.
+        return undefined;
+    };
+});
\ No newline at end of file