| /* |
| * Copyright 2013 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except |
| * in compliance with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the License |
| * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
| * or implied. See the License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.web.bindery.event.shared; |
| |
| import junit.framework.TestCase; |
| |
| /** |
| * Unit test for {@link HandlerRegistrations}. |
| */ |
| public class HandlerRegistrationsTest extends TestCase { |
| |
| private static class MockHandlerRegistration implements HandlerRegistration { |
| |
| private int removeHandlerCallCount = 0; |
| |
| @Override |
| public void removeHandler() { |
| removeHandlerCallCount++; |
| } |
| } |
| |
| public void testHandlerRegistrationCollectionRemove() { |
| MockHandlerRegistration hr1 = new MockHandlerRegistration(); |
| MockHandlerRegistration hr2 = new MockHandlerRegistration(); |
| |
| HandlerRegistration hrc = HandlerRegistrations.compose(hr1, hr2); |
| hrc.removeHandler(); |
| |
| // every handler registration needs to be called once |
| assertEquals(1, hr1.removeHandlerCallCount); |
| assertEquals(1, hr2.removeHandlerCallCount); |
| |
| hrc.removeHandler(); |
| // should not be called again |
| assertEquals(1, hr1.removeHandlerCallCount); |
| assertEquals(1, hr2.removeHandlerCallCount); |
| } |
| |
| } |