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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package androidx.transition;
     18 
     19 import static org.hamcrest.CoreMatchers.is;
     20 import static org.hamcrest.MatcherAssert.assertThat;
     21 import static org.hamcrest.Matchers.sameInstance;
     22 
     23 import android.support.test.annotation.UiThreadTest;
     24 import android.support.test.filters.MediumTest;
     25 import android.view.View;
     26 import android.view.ViewGroup;
     27 import android.widget.FrameLayout;
     28 
     29 import androidx.transition.test.R;
     30 
     31 import org.junit.Test;
     32 
     33 @MediumTest
     34 public class SceneTest extends BaseTest {
     35 
     36     @Test
     37     public void testGetSceneRoot() {
     38         TransitionActivity activity = rule.getActivity();
     39         ViewGroup root = activity.getRoot();
     40         Scene scene = new Scene(root);
     41         assertThat(scene.getSceneRoot(), is(sameInstance(root)));
     42     }
     43 
     44     @Test
     45     @UiThreadTest
     46     public void testSceneWithViewGroup() {
     47         TransitionActivity activity = rule.getActivity();
     48         ViewGroup root = activity.getRoot();
     49         FrameLayout layout = new FrameLayout(activity);
     50         Scene scene = new Scene(root, layout);
     51         CheckCalledRunnable enterAction = new CheckCalledRunnable();
     52         CheckCalledRunnable exitAction = new CheckCalledRunnable();
     53         scene.setEnterAction(enterAction);
     54         scene.setExitAction(exitAction);
     55         scene.enter();
     56         assertThat(enterAction.wasCalled(), is(true));
     57         assertThat(exitAction.wasCalled(), is(false));
     58         assertThat(root.getChildCount(), is(1));
     59         assertThat(root.getChildAt(0), is((View) layout));
     60         scene.exit();
     61         assertThat(exitAction.wasCalled(), is(true));
     62     }
     63 
     64     @Test
     65     @UiThreadTest
     66     public void testSceneWithView() {
     67         TransitionActivity activity = rule.getActivity();
     68         ViewGroup root = activity.getRoot();
     69         View view = new View(activity);
     70         Scene scene = new Scene(root, view);
     71         CheckCalledRunnable enterAction = new CheckCalledRunnable();
     72         CheckCalledRunnable exitAction = new CheckCalledRunnable();
     73         scene.setEnterAction(enterAction);
     74         scene.setExitAction(exitAction);
     75         scene.enter();
     76         assertThat(enterAction.wasCalled(), is(true));
     77         assertThat(exitAction.wasCalled(), is(false));
     78         assertThat(root.getChildCount(), is(1));
     79         assertThat(root.getChildAt(0), is(view));
     80         scene.exit();
     81         assertThat(exitAction.wasCalled(), is(true));
     82     }
     83 
     84     @Test
     85     public void testEnterAction() {
     86         TransitionActivity activity = rule.getActivity();
     87         ViewGroup root = activity.getRoot();
     88         Scene scene = new Scene(root);
     89         CheckCalledRunnable runnable = new CheckCalledRunnable();
     90         scene.setEnterAction(runnable);
     91         scene.enter();
     92         assertThat(runnable.wasCalled(), is(true));
     93     }
     94 
     95     @Test
     96     public void testExitAction() {
     97         TransitionActivity activity = rule.getActivity();
     98         ViewGroup root = activity.getRoot();
     99         Scene scene = new Scene(root);
    100         scene.enter();
    101         CheckCalledRunnable runnable = new CheckCalledRunnable();
    102         scene.setExitAction(runnable);
    103         scene.exit();
    104         assertThat(runnable.wasCalled(), is(true));
    105     }
    106 
    107     @Test
    108     public void testExitAction_withoutEnter() {
    109         TransitionActivity activity = rule.getActivity();
    110         ViewGroup root = activity.getRoot();
    111         Scene scene = new Scene(root);
    112         CheckCalledRunnable runnable = new CheckCalledRunnable();
    113         scene.setExitAction(runnable);
    114         scene.exit();
    115         assertThat(runnable.wasCalled(), is(false));
    116     }
    117 
    118     @Test
    119     public void testGetSceneForLayout_cache() {
    120         TransitionActivity activity = rule.getActivity();
    121         ViewGroup root = activity.getRoot();
    122         Scene scene = Scene.getSceneForLayout(root, R.layout.support_scene0, activity);
    123         assertThat("getSceneForLayout should return the same instance for subsequent calls",
    124                 Scene.getSceneForLayout(root, R.layout.support_scene0, activity),
    125                 is(sameInstance(scene)));
    126     }
    127 
    128 }
    129