fix behavior warn test.

Polymer · Mar 7, 2017 · 4439436 · 4439436
1 parent 7cebe12
commit 4439436
Showing 1 changed file with 3 additions and 7 deletions.
diff --git a/test/unit/behaviors.html b/test/unit/behaviors.html
@@ -414,20 +414,16 @@
   });
 
   test('behavior is null generates warning', function() {
-    var warned = false, oldWarn = Polymer._warn;
-    Polymer._warn = function(message) {
-      assert.match(message, /behavior is null/);
-      warned = true;
-    };
+    sinon.spy(console, 'warn');
     Polymer({
       is: 'behavior-null',
       behaviors: [
         null
       ]
     });
     document.createElement('behavior-null');
-    assert.equal(warned, true, 'Null behaviour should generate warning');
-    Polymer.Base._warn = oldWarn;
+    assert.equal(console.warn.callCount, 1, 'Null behaviour should generate warning');
+    console.warn.restore();
   });
 
   test('behavior array is unique', function() {