diff --git a/src/RJSArray.cpp b/src/RJSArray.cpp
index 38004fe9..b32ad848 100644
--- a/src/RJSArray.cpp
+++ b/src/RJSArray.cpp
@@ -100,9 +100,9 @@ JSObjectRef RJSArrayCreate(JSContextRef ctx, realm::ObjectArray *array) {
 
 JSClassRef RJSArrayClass() {
     const JSStaticFunction arrayFuncs[] = {
-        {"push", ArrayPush},
+        {"push", ArrayPush, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
         {NULL, NULL},
     };
-    static JSClassRef s_objectClass = RJSCreateWrapperClass<Object>("RealmArray", ArrayGetProperty, NULL, arrayFuncs, NULL, ArrayPropertyNames);
-    return s_objectClass;
+    static JSClassRef s_arrayClass = RJSCreateWrapperClass<Object>("RealmArray", ArrayGetProperty, NULL, arrayFuncs, NULL, ArrayPropertyNames);
+    return s_arrayClass;
 }
diff --git a/src/RJSRealm.mm b/src/RJSRealm.mm
index a2712777..8138e560 100644
--- a/src/RJSRealm.mm
+++ b/src/RJSRealm.mm
@@ -335,11 +335,11 @@ void RJSNotificationFinalize(JSObjectRef object) {
 
 JSClassRef RJSRealmClass() {
     const JSStaticFunction realmFuncs[] = {
-        {"objects", RealmObjects},
-        {"create", RealmCreateObject},
-        {"delete", RealmDelete},
-        {"write", RealmWrite},
-        {"addNotification", RealmAddNotification},
+        {"objects", RealmObjects, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
+        {"create", RealmCreateObject, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
+        {"delete", RealmDelete, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
+        {"write", RealmWrite, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
+        {"addNotification", RealmAddNotification, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
         {NULL, NULL},
     };
     static JSClassRef s_realmClass = RJSCreateWrapperClass<SharedRealm *>("Realm", RealmGetProperty, NULL, realmFuncs);
diff --git a/tests/ArrayTests.js b/tests/ArrayTests.js
index 6deda1a3..c4023300 100644
--- a/tests/ArrayTests.js
+++ b/tests/ArrayTests.js
@@ -89,7 +89,7 @@ var ArrayTests = {
 
         var obj = realm.objects('LinkTypesObject')[0];
         for (var object in obj.arrayCol) {
-            TestCase.assertTrue(false, "No objects should have been enumerated");
+            TestCase.assertTrue(false, "No objects should have been enumerated: " + object);
         }
 
         realm.write(function() {
@@ -106,6 +106,25 @@ var ArrayTests = {
     },
 
     testPush: function() {
-        
+        var realm = new Realm({schema: [LinkTypesObjectSchema, TestObjectSchema]});
+        var array;
+        realm.write(function() {
+            var obj = realm.create('LinkTypesObject', [[1], [2], [[3]]]);
+            TestCase.assertEqual(obj.arrayCol.length, 1);
+
+            array = obj.arrayCol;
+            array.push([4]);
+            TestCase.assertEqual(array.length, 2);
+            TestCase.assertEqual(array[1].doubleCol, 4);
+
+            array.push(obj.objectCol);
+            TestCase.assertEqual(array.length, 3);
+            TestCase.assertEqual(array[2].doubleCol, 1);
+        });   
+
+        TestCase.assertEqual(array.length, 3);
+        TestCase.assertThrows(function() {
+            array.push([1]);
+        });
     }
 };
diff --git a/tests/TestCase.js b/tests/TestCase.js
index 6e69b166..4fd25eb1 100644
--- a/tests/TestCase.js
+++ b/tests/TestCase.js
@@ -73,9 +73,13 @@ var TestCase = {
         };
     },
 
-    assertTrue: function(condition) {
+    assertTrue: function(condition, errorMessage) {
         if (!condition) {
-            throw 'Condition expected to be true';
+
+            if (errorMessage == undefined) {
+                errorMessage = 'Condition expected to be true';
+            }
+            throw errorMessage;
         };
     },
 }