Fixes: #1907

Polymer · Jun 24, 2015 · 9dd38f6 · 9dd38f6
1 parent ab8c285
commit 9dd38f6
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Showing 2 changed files with 15 additions and 1 deletion.
diff --git a/src/lib/dom-api.html b/src/lib/dom-api.html
@@ -473,6 +473,10 @@
       toggle: function() {
         this.node.classList.toggle.apply(this.node.classList, arguments);
         this.domApi._distributeParent();
+      },
+      contains: function() {
+        return this.node.classList.contains.apply(this.node.classList, 
+          arguments);
       }
     }
 

diff --git a/test/unit/polymer-dom.js b/test/unit/polymer-dom.js
@@ -191,7 +191,7 @@ suite('Polymer.dom', function() {
     assert.deepEqual(Polymer.dom(child).getDestinationInsertionPoints(), []);
   });
 
-  test('Polymer.dom.classListAdd/Remove/Toggle (reproject)', function() {
+  test('Polymer.dom.classListAdd/Remove/Toggle/Contains (reproject)', function() {
     var select = document.querySelector('x-select-class1');
     var child = Polymer.dom(select).firstElementChild;
     var c1 = Polymer.dom(select.root).querySelector('content');
@@ -203,31 +203,41 @@ suite('Polymer.dom', function() {
     var ip$ = [c1, c2, c3];
     assert.equal(Polymer.dom(child).getDestinationInsertionPoints().length, 0);
     Polymer.dom(child).classList.add('s1');
+    assert.isTrue(Polymer.dom(child).classList.contains('s1'));
     Polymer.dom.flush();
     assert.deepEqual(Polymer.dom(child).getDestinationInsertionPoints(), [c1]);
     Polymer.dom(child).classList.add('s2');
+    assert.isTrue(Polymer.dom(child).classList.contains('s2'));
     Polymer.dom.flush();
     assert.deepEqual(Polymer.dom(child).getDestinationInsertionPoints(), [c1, c2]);
     Polymer.dom(child).classList.add('s3');
+    assert.isTrue(Polymer.dom(child).classList.contains('s3'));
     Polymer.dom.flush();
     assert.deepEqual(Polymer.dom(child).getDestinationInsertionPoints(), [c1, c2, c3]);
     Polymer.dom(child).classList.toggle('s1');
+    assert.isFalse(Polymer.dom(child).classList.contains('s1'));
     Polymer.dom.flush();
     assert.deepEqual(Polymer.dom(child).getDestinationInsertionPoints(), []);
     Polymer.dom(child).classList.toggle('s1');
+    assert.isTrue(Polymer.dom(child).classList.contains('s1'));
     Polymer.dom.flush();
     assert.deepEqual(Polymer.dom(child).getDestinationInsertionPoints(), [c1, c2, c3]);
     Polymer.dom(child).classList.remove('s2');
+    assert.isFalse(Polymer.dom(child).classList.contains('s2'));
     Polymer.dom.flush();
     assert.deepEqual(Polymer.dom(child).getDestinationInsertionPoints(), [c1]);
     Polymer.dom(child).classList.toggle('s2');
+    assert.isTrue(Polymer.dom(child).classList.contains('s2'));
     Polymer.dom.flush();
     assert.deepEqual(Polymer.dom(child).getDestinationInsertionPoints(), [c1, c2, c3]);
     Polymer.dom(child).classList.remove('s3');
+    assert.isFalse(Polymer.dom(child).classList.contains('s3'));
     Polymer.dom.flush();
     assert.deepEqual(Polymer.dom(child).getDestinationInsertionPoints(), [c1, c2]);
     Polymer.dom(child).classList.remove('s2');
     Polymer.dom(child).classList.remove('s1');
+    assert.isFalse(Polymer.dom(child).classList.contains('s2'));
+    assert.isFalse(Polymer.dom(child).classList.contains('s1'));
     Polymer.dom.flush();
     assert.deepEqual(Polymer.dom(child).getDestinationInsertionPoints(), []);
   });