1 /* 2 * Copyright (C) 2020 The Android Open Source Project 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 android.car; 18 19 import static com.google.common.truth.Truth.assertThat; 20 21 import android.os.IBinder; 22 import android.os.IInterface; 23 24 import androidx.test.ext.junit.runners.AndroidJUnit4; 25 26 import com.android.car.BinderInterfaceContainer; 27 import com.android.car.BinderInterfaceContainer.BinderInterface; 28 29 import org.junit.Test; 30 import org.junit.runner.RunWith; 31 32 import java.util.ArrayList; 33 import java.util.Collection; 34 import java.util.List; 35 36 @RunWith(AndroidJUnit4.class) 37 public final class BinderInterfaceContainerTest { 38 @Test getInterfaces_returnsCopy()39 public void getInterfaces_returnsCopy() { 40 BinderInterfaceContainer<IInterface> container = new BinderInterfaceContainer<>(); 41 TestBinderInterface interfaceOne = new TestBinderInterface(); 42 container.addBinder(interfaceOne); 43 44 Collection<BinderInterface<IInterface>> interfaces = container.getInterfaces(); 45 46 TestBinderInterface interfaceTwo = new TestBinderInterface(); 47 container.addBinder(interfaceTwo); 48 49 assertThat(interfaces).hasSize(1); 50 List<BinderInterface<IInterface>> interfaceList = new ArrayList<>(interfaces); 51 assertThat(interfaceList.get(0).binderInterface).isEqualTo(interfaceOne); 52 53 assertThat(container.getInterfaces()).hasSize(2); 54 } 55 56 private static final class TestBinderInterface extends android.os.Binder implements IInterface { 57 @Override asBinder()58 public IBinder asBinder() { 59 return this; 60 } 61 } 62 } 63