1 /*
2  * Copyright (C) 2021 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 androidx.test.core.app.ApplicationProvider.getApplicationContext;
20 import static com.google.common.truth.Truth.assertThat;
21 import static org.junit.Assert.assertThrows;
22 
23 import android.os.Build;
24 import androidx.test.ext.junit.runners.AndroidJUnit4;
25 import dagger.hilt.android.UsesComponentTestClasses.UsesComponentQualifier;
26 import dagger.hilt.android.internal.testing.TestApplicationComponentManager;
27 import dagger.hilt.android.testing.HiltAndroidRule;
28 import dagger.hilt.android.testing.HiltAndroidTest;
29 import dagger.hilt.android.testing.HiltTestApplication;
30 import javax.inject.Inject;
31 import org.junit.Rule;
32 import org.junit.Test;
33 import org.junit.runner.RunWith;
34 import org.robolectric.annotation.Config;
35 
36 @HiltAndroidTest
37 @RunWith(AndroidJUnit4.class)
38 // Robolectric requires Java9 to run API 29 and above, so use API 28 instead
39 @Config(sdk = Build.VERSION_CODES.P, application = HiltTestApplication.class)
40 public final class UsesSharedComponentTestInstallInTest {
41 
42   @Rule public HiltAndroidRule rule = new HiltAndroidRule(this);
43 
44   @Inject @UsesComponentQualifier String injectedString;
45 
46   @Test
testInject()47   public void testInject() {
48     rule.inject();
49     assertThat(injectedString).isEqualTo("test_install_in_string");
50   }
51 
52   @Test
testUsesLocalComponent()53   public void testUsesLocalComponent() {
54     HiltTestApplication app = (HiltTestApplication) getApplicationContext();
55     Object generatedComponent =
56         ((TestApplicationComponentManager) app.componentManager()).generatedComponent();
57     assertThat(generatedComponent.getClass().getName())
58         .isEqualTo(UsesComponentHelper.defaultComponentName());
59   }
60 
61   @Test
testLocalComponentNotGenerated()62   public void testLocalComponentNotGenerated() {
63     assertThrows(
64         ClassNotFoundException.class,
65         () -> Class.forName(UsesComponentHelper.perTestComponentName(this)));
66   }
67 }
68