1 /* 2 * Copyright (C) 2020 The Dagger Authors. 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 dagger.hilt.android; 18 19 import static com.google.common.truth.Truth.assertThat; 20 21 import android.os.Build; 22 import android.os.Bundle; 23 import androidx.fragment.app.FragmentActivity; 24 import androidx.annotation.Nullable; 25 import androidx.lifecycle.SavedStateHandle; 26 import androidx.lifecycle.ViewModel; 27 import androidx.lifecycle.ViewModelProvider; 28 import androidx.test.core.app.ActivityScenario; 29 import androidx.test.ext.junit.runners.AndroidJUnit4; 30 import dagger.hilt.android.lifecycle.HiltViewModel; 31 import dagger.hilt.android.testing.HiltAndroidRule; 32 import dagger.hilt.android.testing.HiltAndroidTest; 33 import dagger.hilt.android.testing.HiltTestApplication; 34 import javax.inject.Inject; 35 import org.junit.Rule; 36 import org.junit.Test; 37 import org.junit.runner.RunWith; 38 import org.robolectric.annotation.Config; 39 40 @HiltAndroidTest 41 @RunWith(AndroidJUnit4.class) 42 // Robolectric requires Java9 to run API 29 and above, so use API 28 instead 43 @Config(sdk = Build.VERSION_CODES.P, application = HiltTestApplication.class) 44 public class ViewModelWithBaseTest { 45 46 @Rule public final HiltAndroidRule rule = new HiltAndroidRule(this); 47 48 @Test verifyBaseInjection()49 public void verifyBaseInjection() { 50 try (ActivityScenario<TestActivity> scenario = ActivityScenario.launch(TestActivity.class)) { 51 scenario.onActivity( 52 activity -> { 53 assertThat(activity.myViewModel.foo).isNotNull(); 54 assertThat(activity.myViewModel.bar).isNotNull(); 55 }); 56 } 57 } 58 59 @AndroidEntryPoint(FragmentActivity.class) 60 public static class TestActivity extends Hilt_ViewModelWithBaseTest_TestActivity { 61 62 MyViewModel myViewModel; 63 64 @Override onCreate(@ullable Bundle savedInstanceState)65 public void onCreate(@Nullable Bundle savedInstanceState) { 66 super.onCreate(savedInstanceState); 67 myViewModel = new ViewModelProvider(this).get(MyViewModel.class); 68 } 69 } 70 71 @HiltViewModel 72 static class MyViewModel extends BaseViewModel { 73 74 final Foo foo; 75 76 @Inject MyViewModel(SavedStateHandle handle, Foo foo)77 MyViewModel(SavedStateHandle handle, Foo foo) { 78 this.foo = foo; 79 } 80 } 81 82 abstract static class BaseViewModel extends ViewModel { 83 @Inject Bar bar; 84 } 85 86 static class Foo { 87 @Inject Foo()88 Foo() {} 89 } 90 91 static class Bar { 92 @Inject Bar()93 Bar() {} 94 } 95 } 96