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.testing; 18 19 import static com.google.common.truth.Truth.assertThat; 20 21 import androidx.test.ext.junit.runners.AndroidJUnit4; 22 import dagger.MapKey; 23 import dagger.hilt.EntryPoint; 24 import dagger.hilt.InstallIn; 25 import dagger.hilt.components.SingletonComponent; 26 import java.util.Map; 27 import javax.inject.Inject; 28 import javax.inject.Provider; 29 import org.junit.Rule; 30 import org.junit.Test; 31 import org.junit.runner.RunWith; 32 import org.robolectric.annotation.Config; 33 34 @HiltAndroidTest 35 @RunWith(AndroidJUnit4.class) 36 @Config(application = HiltTestApplication.class) 37 public final class BindValueIntoMapTest { 38 private static final String KEY1 = "SOME_KEY"; 39 private static final String KEY2 = "SOME_OTHER_KEY"; 40 private static final String VALUE1 = "SOME_VALUE"; 41 private static final String VALUE2 = "SOME_OTHER_VALUE"; 42 private static final String VALUE3 = "A_THIRD_VALUE"; 43 44 @BindValueIntoMap 45 @MyMapKey(KEY1) 46 String boundValue1 = VALUE1; 47 48 @BindValueIntoMap 49 @MyMapKey(KEY2) 50 String boundValue2 = VALUE2; 51 52 @EntryPoint 53 @InstallIn(SingletonComponent.class) 54 public interface BindValuesIntoMapEntryPoint { getStringStringMap()55 Map<String, String> getStringStringMap(); 56 } 57 58 @Rule public final HiltAndroidRule rule = new HiltAndroidRule(this); 59 60 @Inject Provider<Map<String, String>> mapProvider; 61 62 @Test testInjectedAndModified()63 public void testInjectedAndModified() throws Exception { 64 rule.inject(); 65 Map<String, String> oldMap = mapProvider.get(); 66 assertThat(oldMap).containsExactly(KEY1, VALUE1, KEY2, VALUE2); 67 boundValue1 = VALUE3; 68 Map<String, String> newMap = mapProvider.get(); 69 assertThat(oldMap).containsExactly(KEY1, VALUE1, KEY2, VALUE2); 70 assertThat(newMap).containsExactly(KEY1, VALUE3, KEY2, VALUE2); 71 } 72 73 @MapKey 74 @interface MyMapKey { value()75 String value(); 76 } 77 } 78