/*
* 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.support.transition;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.notNullValue;
import static org.hamcrest.CoreMatchers.nullValue;
import static org.junit.Assert.assertThat;
import android.animation.Animator;
import android.support.test.annotation.UiThreadTest;
import android.support.test.filters.MediumTest;
import android.view.View;
import android.view.ViewGroup;
import org.junit.Before;
import org.junit.Test;
@MediumTest
public class FadeTest extends BaseTest {
private View mView;
private ViewGroup mRoot;
@UiThreadTest
@Before
public void setUp() {
mRoot = rule.getActivity().getRoot();
mView = new View(rule.getActivity());
mRoot.addView(mView, new ViewGroup.LayoutParams(100, 100));
}
@Test
@UiThreadTest
public void testDisappear() {
final Fade fade = new Fade();
final TransitionValues startValues = new TransitionValues();
startValues.view = mView;
fade.captureStartValues(startValues);
mView.setVisibility(View.INVISIBLE);
final TransitionValues endValues = new TransitionValues();
endValues.view = mView;
fade.captureEndValues(endValues);
Animator animator = fade.createAnimator(mRoot, startValues, endValues);
assertThat(animator, is(notNullValue()));
}
@Test
@UiThreadTest
public void testAppear() {
mView.setVisibility(View.INVISIBLE);
final Fade fade = new Fade();
final TransitionValues startValues = new TransitionValues();
startValues.view = mView;
fade.captureStartValues(startValues);
mView.setVisibility(View.VISIBLE);
final TransitionValues endValues = new TransitionValues();
endValues.view = mView;
fade.captureEndValues(endValues);
Animator animator = fade.createAnimator(mRoot, startValues, endValues);
assertThat(animator, is(notNullValue()));
}
@Test
@UiThreadTest
public void testNoChange() {
final Fade fade = new Fade();
final TransitionValues startValues = new TransitionValues();
startValues.view = mView;
fade.captureStartValues(startValues);
final TransitionValues endValues = new TransitionValues();
endValues.view = mView;
fade.captureEndValues(endValues);
Animator animator = fade.createAnimator(mRoot, startValues, endValues);
// No visibility change; no animation should happen
assertThat(animator, is(nullValue()));
}
}