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/*
* Copyright (C) 2017 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.arch.lifecycle;
import static android.arch.lifecycle.Lifecycle.Event.ON_ANY;
import static android.arch.lifecycle.Lifecycle.Event.ON_RESUME;
import static org.hamcrest.CoreMatchers.instanceOf;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import static java.util.Arrays.asList;
import static java.util.Collections.singletonList;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import java.util.ArrayList;
import java.util.List;
@RunWith(JUnit4.class)
public class GeneratedAdaptersTest {
private LifecycleOwner mOwner;
@SuppressWarnings("FieldCanBeLocal")
private Lifecycle mLifecycle;
@Before
public void initMocks() {
mOwner = mock(LifecycleOwner.class);
mLifecycle = mock(Lifecycle.class);
when(mOwner.getLifecycle()).thenReturn(mLifecycle);
}
static class SimpleObserver implements LifecycleObserver {
List<String> mLog;
SimpleObserver(List<String> log) {
mLog = log;
}
@OnLifecycleEvent(Lifecycle.Event.ON_CREATE)
void onCreate() {
mLog.add("onCreate");
}
}
@Test
public void testSimpleSingleGeneratedAdapter() {
List<String> actual = new ArrayList<>();
GenericLifecycleObserver callback = Lifecycling.getCallback(new SimpleObserver(actual));
callback.onStateChanged(mOwner, Lifecycle.Event.ON_CREATE);
assertThat(callback, instanceOf(SingleGeneratedAdapterObserver.class));
assertThat(actual, is(singletonList("onCreate")));
}
static class TestObserver implements LifecycleObserver {
List<String> mLog;
TestObserver(List<String> log) {
mLog = log;
}
@OnLifecycleEvent(Lifecycle.Event.ON_CREATE)
void onCreate() {
mLog.add("onCreate");
}
@OnLifecycleEvent(ON_ANY)
void onAny() {
mLog.add("onAny");
}
}
@Test
public void testOnAny() {
List<String> actual = new ArrayList<>();
GenericLifecycleObserver callback = Lifecycling.getCallback(new TestObserver(actual));
callback.onStateChanged(mOwner, Lifecycle.Event.ON_CREATE);
assertThat(callback, instanceOf(SingleGeneratedAdapterObserver.class));
assertThat(actual, is(asList("onCreate", "onAny")));
}
interface OnPauses extends LifecycleObserver {
@OnLifecycleEvent(Lifecycle.Event.ON_PAUSE)
void onPause();
@OnLifecycleEvent(Lifecycle.Event.ON_PAUSE)
void onPause(LifecycleOwner owner);
}
interface OnPauseResume extends LifecycleObserver {
@OnLifecycleEvent(Lifecycle.Event.ON_PAUSE)
void onPause();
@OnLifecycleEvent(Lifecycle.Event.ON_RESUME)
void onResume();
}
class Impl1 implements OnPauses, OnPauseResume {
List<String> mLog;
Impl1(List<String> log) {
mLog = log;
}
@Override
public void onPause() {
mLog.add("onPause_0");
}
@Override
public void onResume() {
mLog.add("onResume");
}
@Override
public void onPause(LifecycleOwner owner) {
mLog.add("onPause_1");
}
}
@Test
public void testClashingInterfaces() {
List<String> actual = new ArrayList<>();
GenericLifecycleObserver callback = Lifecycling.getCallback(new Impl1(actual));
callback.onStateChanged(mOwner, Lifecycle.Event.ON_PAUSE);
assertThat(callback, instanceOf(CompositeGeneratedAdaptersObserver.class));
assertThat(actual, is(asList("onPause_0", "onPause_1")));
actual.clear();
callback.onStateChanged(mOwner, Lifecycle.Event.ON_RESUME);
assertThat(actual, is(singletonList("onResume")));
}
class Base implements LifecycleObserver {
List<String> mLog;
Base(List<String> log) {
mLog = log;
}
@OnLifecycleEvent(ON_ANY)
void onAny() {
mLog.add("onAny_0");
}
@OnLifecycleEvent(ON_ANY)
void onAny(LifecycleOwner owner) {
mLog.add("onAny_1");
}
@OnLifecycleEvent(Lifecycle.Event.ON_RESUME)
void onResume() {
mLog.add("onResume");
}
}
interface OnAny extends LifecycleObserver {
@OnLifecycleEvent(ON_ANY)
void onAny();
@OnLifecycleEvent(ON_ANY)
void onAny(LifecycleOwner owner, Lifecycle.Event event);
}
class Derived extends Base implements OnAny {
Derived(List<String> log) {
super(log);
}
@Override
public void onAny() {
super.onAny();
}
@Override
public void onAny(LifecycleOwner owner, Lifecycle.Event event) {
mLog.add("onAny_2");
assertThat(event, is(ON_RESUME));
}
}
@Test
public void testClashingClassAndInterface() {
List<String> actual = new ArrayList<>();
GenericLifecycleObserver callback = Lifecycling.getCallback(new Derived(actual));
callback.onStateChanged(mOwner, Lifecycle.Event.ON_RESUME);
assertThat(callback, instanceOf(CompositeGeneratedAdaptersObserver.class));
assertThat(actual, is(asList("onResume", "onAny_0", "onAny_1", "onAny_2")));
}
}
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