| /* |
| * 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 androidx.lifecycle; |
| |
| import static androidx.lifecycle.Lifecycle.Event.ON_CREATE; |
| import static androidx.lifecycle.Lifecycle.Event.ON_DESTROY; |
| import static androidx.lifecycle.Lifecycle.Event.ON_PAUSE; |
| import static androidx.lifecycle.Lifecycle.Event.ON_RESUME; |
| import static androidx.lifecycle.Lifecycle.Event.ON_START; |
| import static androidx.lifecycle.Lifecycle.Event.ON_STOP; |
| |
| import static org.hamcrest.CoreMatchers.instanceOf; |
| import static org.hamcrest.CoreMatchers.is; |
| import static org.hamcrest.CoreMatchers.notNullValue; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| import android.app.Instrumentation; |
| import android.content.Intent; |
| |
| import androidx.fragment.app.Fragment; |
| import androidx.lifecycle.activity.FragmentLifecycleActivity; |
| import androidx.test.filters.SmallTest; |
| import androidx.test.platform.app.InstrumentationRegistry; |
| import androidx.test.rule.ActivityTestRule; |
| |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| import java.util.Arrays; |
| import java.util.concurrent.TimeUnit; |
| |
| @SmallTest |
| @RunWith(Parameterized.class) |
| public class FragmentLifecycleInActivityTest { |
| |
| private static final long TIMEOUT = 2; //sec |
| |
| @Rule |
| public ActivityTestRule<FragmentLifecycleActivity> mActivityRule = |
| new ActivityTestRule<>(FragmentLifecycleActivity.class, false, false); |
| |
| private Instrumentation mInstrumentation; |
| |
| @SuppressWarnings("WeakerAccess") |
| @Parameterized.Parameter |
| public boolean mNested; |
| |
| @Parameterized.Parameters(name = "nested_{0}") |
| public static Object[][] params() { |
| return new Object[][]{new Object[]{false}, new Object[]{true}}; |
| } |
| |
| @Before |
| public void getInstrumentation() { |
| mInstrumentation = InstrumentationRegistry.getInstrumentation(); |
| } |
| |
| private void reset() { |
| mActivityRule.getActivity().resetEvents(); |
| } |
| |
| @Test |
| public void testFullEvents() throws Throwable { |
| final FragmentLifecycleActivity activity = launchActivity(); |
| waitForIdle(); |
| assertEvents(ON_CREATE, ON_START, ON_RESUME); |
| reset(); |
| finishActivity(activity); |
| assertEvents(ON_PAUSE, ON_STOP, ON_DESTROY); |
| } |
| |
| @Test |
| public void testStopStart() throws Throwable { |
| final FragmentLifecycleActivity activity = launchActivity(); |
| waitForIdle(); |
| assertEvents(ON_CREATE, ON_START, ON_RESUME); |
| reset(); |
| mActivityRule.runOnUiThread(new Runnable() { |
| @Override |
| public void run() { |
| mInstrumentation.callActivityOnPause(activity); |
| mInstrumentation.callActivityOnStop(activity); |
| } |
| }); |
| waitForIdle(); |
| assertEvents(ON_PAUSE, ON_STOP); |
| reset(); |
| mActivityRule.runOnUiThread(new Runnable() { |
| @Override |
| public void run() { |
| mInstrumentation.callActivityOnStart(activity); |
| mInstrumentation.callActivityOnResume(activity); |
| } |
| }); |
| waitForIdle(); |
| assertEvents(ON_START, ON_RESUME); |
| } |
| |
| private FragmentLifecycleActivity launchActivity() throws Throwable { |
| Intent intent = FragmentLifecycleActivity.intentFor(mInstrumentation.getTargetContext(), |
| mNested); |
| final FragmentLifecycleActivity activity = mActivityRule.launchActivity(intent); |
| mActivityRule.runOnUiThread(new Runnable() { |
| @Override |
| public void run() { |
| Fragment main = activity.getSupportFragmentManager() |
| .findFragmentByTag(FragmentLifecycleActivity.MAIN_TAG); |
| assertThat("test sanity", main, notNullValue()); |
| Fragment nestedFragment = main.getChildFragmentManager() |
| .findFragmentByTag(FragmentLifecycleActivity.NESTED_TAG); |
| assertThat("test sanity", nestedFragment != null, is(mNested)); |
| } |
| }); |
| assertThat(activity.getObservedOwner(), instanceOf( |
| mNested ? FragmentLifecycleActivity.NestedFragment.class |
| : FragmentLifecycleActivity.MainFragment.class |
| )); |
| return activity; |
| } |
| |
| private void waitForIdle() { |
| mInstrumentation.waitForIdleSync(); |
| } |
| |
| private void finishActivity(final FragmentLifecycleActivity activity) |
| throws InterruptedException { |
| mInstrumentation.runOnMainSync(new Runnable() { |
| @Override |
| public void run() { |
| activity.finish(); |
| } |
| }); |
| assertThat(activity.awaitForDestruction(TIMEOUT, TimeUnit.SECONDS), is(true)); |
| } |
| |
| private void assertEvents(Lifecycle.Event... events) { |
| assertThat(mActivityRule.getActivity().getLoggedEvents(), is(Arrays.asList(events))); |
| } |
| } |