Add test for incorrectly shimmed Object.create.

test/index.html

@@ -24,6 +24,9 @@
 			Function.prototype._bind = Function.prototype.bind;
 			Function.prototype.bind = function() { return function() {}; };
 
+			Object._create = Object.create;
+			Object.create = function() {};
+
 			Object._defineProperty = Object.defineProperty;
 			Object.defineProperty = function() {};
 
@@ -48,6 +51,11 @@
 			} else {
 				delete Function.prototype.bind;
 			}
+			if (Object._create) {
+				Object.create = Object._create;
+			} else {
+				delete Object.create;
+			}
 			if (Object._defineProperty) {
 				Object.defineProperty = Object._defineProperty;
 			} else {
@@ -60,6 +68,7 @@
 			}
 			delete Array._isArray;
 			delete Function.prototype._bind;
+			delete Object._create;
 			delete Object._defineProperty;
 			delete Object._keys;
 

test/test.js

@@ -261,7 +261,7 @@
       }
     });
 
-    test('avoids overwritten native methods', 3, function() {
+    test('avoids overwritten native methods', 4, function() {
       function message(methodName) {
         return '`_.' + methodName + '` should avoid overwritten native methods';
       }
@@ -271,21 +271,40 @@
       if (document) {
         try {
           var actual = lodashBadShim.bind(function() { return this.a; }, object)();
-        } catch(e) { }
+        } catch(e) {
+          actual = null;
+        }
         ok(actual, message('bind'));
 
         try {
           actual = lodashBadShim.isArray([]);
-        } catch(e) { }
+        } catch(e) {
+          actual = null;
+        }
         ok(actual, message('isArray'));
 
         try {
           actual = lodashBadShim.keys(object);
-        } catch(e) { }
+        } catch(e) {
+          actual = null;
+        }
         deepEqual(actual, ['a'], message('keys'));
+
+        try {
+          var Foo = function() {
+            this.a = 2;
+          };
+
+          var actual = _.transform(new Foo, function(result, value, key) {
+            result[key] = value * value;
+          });
+        } catch(e) {
+          actual = null;
+        }
+        ok(actual instanceof Foo, message('transform'));
       }
       else {
-        skipTest(3);
+        skipTest(4);
       }
     });
   }());