| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * 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 com.android.server.accessibility.magnification; |
| |
| |
| import static org.mockito.ArgumentMatchers.any; |
| import static org.mockito.ArgumentMatchers.eq; |
| import static org.mockito.Mockito.doAnswer; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.never; |
| import static org.mockito.Mockito.verify; |
| import static org.mockito.Mockito.when; |
| import static org.testng.Assert.assertNotNull; |
| import static org.testng.Assert.assertNull; |
| |
| import android.os.Binder; |
| import android.os.IBinder; |
| import android.os.RemoteException; |
| import android.view.accessibility.IWindowMagnificationConnection; |
| import android.view.accessibility.IWindowMagnificationConnectionCallback; |
| |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| /** |
| * Tests for WindowMagnificationManager. |
| */ |
| public class WindowMagnificationManagerTest { |
| |
| private MockWindowMagnificationConnection mMockConnection; |
| private WindowMagnificationManager mWindowMagnificationManager; |
| |
| @Before |
| public void setUp() { |
| mMockConnection = new MockWindowMagnificationConnection(); |
| mWindowMagnificationManager = new WindowMagnificationManager(); |
| } |
| |
| @Test |
| public void setConnection_connectionIsNull_wrapperIsNullAndLinkToDeath() { |
| mWindowMagnificationManager.setConnection(mMockConnection.getConnection()); |
| assertNotNull(mWindowMagnificationManager.mConnectionWrapper); |
| verify(mMockConnection.asBinder()).linkToDeath(any(IBinder.DeathRecipient.class), eq(0)); |
| } |
| |
| @Test |
| public void setConnection_connectionIsNull_setMirrorWindowCallbackAndHasWrapper() |
| throws RemoteException { |
| mWindowMagnificationManager.setConnection(mMockConnection.getConnection()); |
| |
| assertNotNull(mWindowMagnificationManager.mConnectionWrapper); |
| verify(mMockConnection.asBinder()).linkToDeath(any(IBinder.DeathRecipient.class), eq(0)); |
| verify(mMockConnection.getConnection()).setConnectionCallback( |
| any(IWindowMagnificationConnectionCallback.class)); |
| } |
| |
| @Test |
| public void binderDied_hasConnection_wrapperIsNullAndUnlinkToDeath() { |
| mWindowMagnificationManager.setConnection(mMockConnection.getConnection()); |
| |
| mMockConnection.getDeathRecipient().binderDied(); |
| |
| assertNull(mWindowMagnificationManager.mConnectionWrapper); |
| verify(mMockConnection.asBinder()).unlinkToDeath(mMockConnection.getDeathRecipient(), |
| 0); |
| } |
| |
| /** |
| * This test simulates {@link WindowMagnificationManager#setConnection} is called by thread A |
| * and then the former connection is called by thread B. In this situation we should keep the |
| * new connection. |
| */ |
| @Test |
| public void |
| setSecondConnectionAndFormerConnectionBinderDead_hasWrapperAndNotCallUnlinkToDeath() { |
| mWindowMagnificationManager.setConnection(mMockConnection.getConnection()); |
| MockWindowMagnificationConnection secondConnection = |
| new MockWindowMagnificationConnection(); |
| |
| mWindowMagnificationManager.setConnection(secondConnection.getConnection()); |
| mMockConnection.getDeathRecipient().binderDied(); |
| |
| assertNotNull(mWindowMagnificationManager.mConnectionWrapper); |
| verify(mMockConnection.asBinder()).unlinkToDeath(mMockConnection.getDeathRecipient(), 0); |
| verify(secondConnection.asBinder(), never()).unlinkToDeath( |
| secondConnection.getDeathRecipient(), 0); |
| } |
| |
| @Test |
| public void setNullConnection_hasConnection_wrapperIsNull() throws RemoteException { |
| mWindowMagnificationManager.setConnection(mMockConnection.getConnection()); |
| |
| mWindowMagnificationManager.setConnection(null); |
| |
| assertNull(mWindowMagnificationManager.mConnectionWrapper); |
| verify(mMockConnection.getConnection()).setConnectionCallback(null); |
| } |
| |
| private static class MockWindowMagnificationConnection { |
| |
| private final IWindowMagnificationConnection mConnection; |
| private final Binder mBinder; |
| private IBinder.DeathRecipient mDeathRecipient; |
| |
| MockWindowMagnificationConnection() { |
| mConnection = mock(IWindowMagnificationConnection.class); |
| mBinder = mock(Binder.class); |
| when(mConnection.asBinder()).thenReturn(mBinder); |
| doAnswer((invocation) -> { |
| mDeathRecipient = invocation.getArgument(0); |
| return null; |
| }).when(mBinder).linkToDeath( |
| any(IBinder.DeathRecipient.class), eq(0)); |
| } |
| |
| IWindowMagnificationConnection getConnection() { |
| return mConnection; |
| } |
| |
| public IBinder.DeathRecipient getDeathRecipient() { |
| return mDeathRecipient; |
| } |
| |
| Binder asBinder() { |
| return mBinder; |
| } |
| } |
| } |