/* * Copyright (C) 2020 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 example.hilt; import static com.google.common.truth.Truth.assertThat; import android.content.Context; import android.os.Build; import androidx.test.core.app.ApplicationProvider; import androidx.test.ext.junit.runners.AndroidJUnit4; import dagger.hilt.android.testing.BindValue; import dagger.hilt.android.testing.HiltAndroidRule; import dagger.hilt.android.testing.HiltAndroidTest; import dagger.hilt.android.testing.HiltTestApplication; import example.common.CoffeeLogger; import example.common.CoffeeMaker; import example.common.Pump; import javax.inject.Inject; import org.junit.Rule; import org.junit.Test; import org.junit.runner.RunWith; import org.robolectric.annotation.Config; /** Tests using a fake pump. */ @HiltAndroidTest @Config(sdk = {Build.VERSION_CODES.P}, application = HiltTestApplication.class) @RunWith(AndroidJUnit4.class) public final class CoffeeAppFakePumpTest { public @Rule HiltAndroidRule rule = new HiltAndroidRule(this); @Inject CoffeeMaker maker; @Inject CoffeeLogger logger; @BindValue Pump fakePump = () -> logger.log("=> => fake pumping => =>"); @Test public void testApplicationClass() throws Exception { assertThat((Context) ApplicationProvider.getApplicationContext()) .isInstanceOf(HiltTestApplication.class); } @Test public void testLogs() throws Exception { rule.inject(); assertThat(logger.logs()).isEmpty(); maker.brew(); assertThat(logger.logs()) .containsExactly( "~ ~ ~ heating ~ ~ ~", "=> => fake pumping => =>", " [_]P coffee! [_]P ") .inOrder(); } }