| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * 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 android.transition.cts; |
| |
| import android.transition.TransitionListenerAdapter; |
| |
| import androidx.test.filters.SmallTest; |
| import androidx.test.runner.AndroidJUnit4; |
| |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| @SmallTest |
| @RunWith(AndroidJUnit4.class) |
| public class TransitionListenerAdapterTest { |
| /** |
| * TransitionListenerAdapter has a noop implementation of the TransitionListener interface. |
| * It should do nothing, including when nulls are passed to it. |
| * <p> |
| * Mostly this test pokes the implementation so that it is counted as tested. There isn't |
| * much to test here since it has no implementation. |
| */ |
| @Test |
| public void testNullOk() { |
| TransitionListenerAdapter adapter = new MyAdapter(); |
| adapter.onTransitionStart(null); |
| adapter.onTransitionEnd(null); |
| adapter.onTransitionCancel(null); |
| adapter.onTransitionPause(null); |
| adapter.onTransitionResume(null); |
| } |
| |
| private static class MyAdapter extends TransitionListenerAdapter { |
| } |
| } |