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/*
* Copyright (C) 2021 The Dagger Authors.
*
* 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 dagger.hilt.android;
import static androidx.test.core.app.ApplicationProvider.getApplicationContext;
import static com.google.common.truth.Truth.assertThat;
import androidx.lifecycle.SavedStateHandle;
import androidx.lifecycle.ViewModel;
import androidx.lifecycle.ViewModelProvider;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import androidx.fragment.app.FragmentActivity;
import androidx.test.core.app.ActivityScenario;
import androidx.test.ext.junit.runners.AndroidJUnit4;
import dagger.Module;
import dagger.Provides;
import dagger.hilt.InstallIn;
import dagger.hilt.android.components.ActivityComponent;
import dagger.hilt.android.testing.HiltAndroidRule;
import dagger.hilt.android.testing.HiltAndroidTest;
import dagger.hilt.android.testing.HiltTestApplication;
import javax.inject.Inject;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.robolectric.annotation.Config;
@HiltAndroidTest
@RunWith(AndroidJUnit4.class)
// Robolectric requires Java9 to run API 29 and above, so use API 28 instead
@Config(sdk = Build.VERSION_CODES.P, application = HiltTestApplication.class)
public class ActivityInjectedSavedStateViewModelTest {
private static final String DATA_KEY = "TEST_KEY";
@Rule public final HiltAndroidRule rule = new HiltAndroidRule(this);
@Test
public void memberInjectedViewModelWithSavedState() {
Intent intent = new Intent(getApplicationContext(), TestActivity.class);
intent.putExtra(DATA_KEY, "test data");
try (ActivityScenario<TestActivity> scenario = ActivityScenario.launch(intent)) {
scenario.onActivity(
activity -> {
String data = activity.myViewModel.handle.get(DATA_KEY);
assertThat(data).isEqualTo("test data");
});
}
}
// Note that assertion of object not being yet injected is in the SuperActivity, while the
// assertion in the scenario is confirming injection eventually does occur.
@Test
public void notYetMemberInjectedSuperActivity() {
try (ActivityScenario<TestActivityWithSuperActivity> scenario =
ActivityScenario.launch(TestActivityWithSuperActivity.class)) {
scenario.onActivity(activity -> assertThat(activity.someObject).isNotNull());
}
}
@AndroidEntryPoint(FragmentActivity.class)
public static final class TestActivity
extends Hilt_ActivityInjectedSavedStateViewModelTest_TestActivity {
@Inject MyViewModel myViewModel;
}
@AndroidEntryPoint(SuperActivity.class)
public static final class TestActivityWithSuperActivity
extends Hilt_ActivityInjectedSavedStateViewModelTest_TestActivityWithSuperActivity {}
public static class SuperActivity extends FragmentActivity {
@Inject Object someObject;
@Override
protected void onCreate(Bundle savedInstanceState) {
assertThat(someObject).isNull(); // not yet injected
super.onCreate(savedInstanceState);
}
}
@Module
@InstallIn(ActivityComponent.class)
static final class MyViewModelModel {
@Provides
static MyViewModel provideModel(FragmentActivity activity) {
return new ViewModelProvider(activity).get(MyViewModel.class);
}
@Provides
static Object provideObject() {
return new Object();
}
}
public static final class MyViewModel extends ViewModel {
final SavedStateHandle handle;
public MyViewModel(SavedStateHandle handle) {
this.handle = handle;
}
}
}
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