fixed issue #56 - invalid property does not update

Author: ahmedelkilani

gold-cc-input.html

@@ -236,8 +236,10 @@
           }
           this.cardType = valid ? result.card_type.name : '';
 
+          // Update invalid property
+          this.invalid = !valid;
+
           // Update the container and its addons (i.e. the custom error-message).
-          this.$.container.invalid = !valid;
           this.$.container.updateAddons({
             inputElement: this.$.input,
             value: this.value,

test/basic.html

@@ -153,6 +153,13 @@
         assert.equal(ironInput.selectionEnd, 2, 'selectionEnd is preserved');
       });
 
+      test('validate method should update invalid property', function() {
+        var input = fixture('required');
+        input.value = '1111 1111';
+        input.validate();
+        assert.isTrue(input.invalid);
+      });
+
     });
 
     suite('a11y', function() {