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/*
* Copyright (C) 2013 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.mediaframeworktest.integration;
import android.content.Context;
import android.content.pm.FeatureInfo;
import android.content.pm.PackageManager;
import android.hardware.CameraInfo;
import android.hardware.ICamera;
import android.hardware.ICameraClient;
import android.hardware.ICameraService;
import android.hardware.ICameraServiceListener;
import android.hardware.IProCameraCallbacks;
import android.hardware.IProCameraUser;
import android.os.Binder;
import android.os.IBinder;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.test.AndroidTestCase;
import android.test.suitebuilder.annotation.SmallTest;
import android.util.Log;
/**
* Junit / Instrumentation test case for the camera2 api
*
* To run only tests in
* this class:
*
* adb shell am instrument \
* -e class com.android.mediaframeworktest.integration.CameraBinderTest \
* -w com.android.mediaframeworktest/.MediaFrameworkIntegrationTestRunner
*/
public class CameraBinderTest extends AndroidTestCase {
private static String TAG = "CameraBinderTest";
private static final String CAMERA_SERVICE_BINDER_NAME = "media.camera";
private static final int NO_ERROR = 0;
private static final int ALREADY_EXISTS = -17;
private static final int BAD_VALUE = -22;
private static final int USE_CALLING_UID = -1;
private ICameraService mCameraService;
private int mGuessedNumCameras = 0;
public CameraBinderTest() {
}
private final static boolean isFeatureAvailable(Context context, String feature) {
final PackageManager packageManager = context.getPackageManager();
final FeatureInfo[] featuresList = packageManager.getSystemAvailableFeatures();
for (FeatureInfo f : featuresList) {
if (f.name != null && f.name.equals(feature)) {
return true;
}
}
return false;
}
// Guess the lower bound for how many cameras there are
private void guessNumCameras() {
/**
* Why do we need this? This way we have no dependency on getNumCameras
* actually working. On most systems there are only 0, 1, or 2 cameras,
* and this covers that 'usual case'. On other systems there might be 3+
* cameras, but this will at least check the first 2.
*/
mGuessedNumCameras = 0;
// Front facing camera
if (isFeatureAvailable(getContext(), PackageManager.FEATURE_CAMERA_FRONT)) {
mGuessedNumCameras++;
}
// Back facing camera
if (isFeatureAvailable(getContext(), PackageManager.FEATURE_CAMERA)) {
mGuessedNumCameras++;
}
// Any facing camera
if (mGuessedNumCameras == 0
&& isFeatureAvailable(getContext(), PackageManager.FEATURE_CAMERA_ANY)) {
mGuessedNumCameras++;
}
Log.v(TAG, "Guessing there are at least " + mGuessedNumCameras + " cameras");
}
protected void setUp() throws Exception {
super.setUp();
guessNumCameras();
IBinder cameraServiceBinder = ServiceManager.getService(CAMERA_SERVICE_BINDER_NAME);
assertNotNull("Camera service IBinder should not be null", cameraServiceBinder);
mCameraService = ICameraService.Stub.asInterface(cameraServiceBinder);
assertNotNull("Camera service should not be null", mCameraService);
}
@SmallTest
public void testNumberOfCameras() throws Exception {
int numCameras = mCameraService.getNumberOfCameras();
assertTrue("At least this many cameras: " + mGuessedNumCameras,
numCameras >= mGuessedNumCameras);
Log.v(TAG, "Number of cameras " + numCameras);
}
@SmallTest
public void testCameraInfo() throws Exception {
for (int cameraId = 0; cameraId < mGuessedNumCameras; ++cameraId) {
CameraInfo info = new CameraInfo();
info.info.facing = -1;
info.info.orientation = -1;
assertTrue("Camera service returned info for camera " + cameraId,
mCameraService.getCameraInfo(cameraId, info) == NO_ERROR);
assertTrue("Facing was not set for camera " + cameraId, info.info.facing != -1);
assertTrue("Orientation was not set for camera " + cameraId,
info.info.orientation != -1);
Log.v(TAG, "Camera " + cameraId + " info: facing " + info.info.facing
+ ", orientation " + info.info.orientation);
}
}
static abstract class DummyBase extends Binder implements android.os.IInterface {
@Override
public IBinder asBinder() {
return this;
}
}
static class DummyCameraClient extends DummyBase implements ICameraClient {
}
@SmallTest
public void testConnect() throws Exception {
for (int cameraId = 0; cameraId < mGuessedNumCameras; ++cameraId) {
ICameraClient dummyCallbacks = new DummyCameraClient();
String clientPackageName = getContext().getPackageName();
ICamera cameraUser = mCameraService.connect(dummyCallbacks, cameraId, clientPackageName,
USE_CALLING_UID);
assertNotNull(String.format("Camera %s was null", cameraId), cameraUser);
Log.v(TAG, String.format("Camera %s connected", cameraId));
cameraUser.disconnect();
}
}
static class DummyProCameraCallbacks extends DummyBase implements IProCameraCallbacks {
}
@SmallTest
public void testConnectPro() throws Exception {
for (int cameraId = 0; cameraId < mGuessedNumCameras; ++cameraId) {
IProCameraCallbacks dummyCallbacks = new DummyProCameraCallbacks();
String clientPackageName = getContext().getPackageName();
IProCameraUser cameraUser = mCameraService.connectPro(dummyCallbacks, cameraId,
clientPackageName, USE_CALLING_UID);
assertNotNull(String.format("Camera %s was null", cameraId), cameraUser);
Log.v(TAG, String.format("Camera %s connected", cameraId));
cameraUser.disconnect();
}
}
static class DummyCameraServiceListener extends DummyBase implements ICameraServiceListener {
@Override
public void onStatusChanged(int status, int cameraId)
throws RemoteException {
Log.v(TAG, String.format("Camera %d has status changed to 0x%x", cameraId, status));
}
}
/**
* adb shell am instrument \
* -e class 'com.android.mediaframeworktest.integration.CameraBinderTest#testAddRemoveListeners' \
* -w com.android.mediaframeworktest/.MediaFrameworkIntegrationTestRunner
*/
@SmallTest
public void testAddRemoveListeners() throws Exception {
for (int cameraId = 0; cameraId < mGuessedNumCameras; ++cameraId) {
ICameraServiceListener listener = new DummyCameraServiceListener();
assertTrue("Listener was removed before added",
mCameraService.removeListener(listener) == BAD_VALUE);
assertTrue("Listener was not added", mCameraService.addListener(listener) == NO_ERROR);
assertTrue("Listener was wrongly added again",
mCameraService.addListener(listener) == ALREADY_EXISTS);
assertTrue("Listener was not removed",
mCameraService.removeListener(listener) == NO_ERROR);
assertTrue("Listener was wrongly removed again",
mCameraService.removeListener(listener) == BAD_VALUE);
}
}
}
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