1 /*
2  * Copyright (C) 2010 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 com.android.camera.functional;
18 
19 import android.app.Activity;
20 import android.content.Intent;
21 import android.net.Uri;
22 import android.os.Environment;
23 import android.os.Process;
24 import android.provider.MediaStore;
25 import android.test.InstrumentationTestCase;
26 
27 import androidx.test.filters.LargeTest;
28 
29 import com.android.camera.Camera;
30 import com.android.camera.VideoCamera;
31 
32 import java.io.File;
33 import java.lang.ref.WeakReference;
34 import java.util.ArrayList;
35 
36 public class CameraTest extends InstrumentationTestCase {
37     private static final String TAG = "CameraTest";
38 
39     @LargeTest
testVideoCaptureIntentFdLeak()40     public void testVideoCaptureIntentFdLeak() throws Exception {
41         Intent intent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
42         intent.setClass(getInstrumentation().getTargetContext(), VideoCamera.class);
43         intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
44         intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.parse("file://"
45                 + Environment.getExternalStorageDirectory().toString()
46                 + "test_fd_leak.3gp"));
47         getInstrumentation().startActivitySync(intent).finish();
48         // Test if the fd is closed.
49         for (File f: new File("/proc/" + Process.myPid() + "/fd").listFiles()) {
50             assertEquals(-1, f.getCanonicalPath().indexOf("test_fd_leak.3gp"));
51         }
52     }
53 
54     @LargeTest
testActivityLeak()55     public void testActivityLeak() throws Exception {
56         checkActivityLeak(Camera.class);
57         checkActivityLeak(VideoCamera.class);
58     }
59 
checkActivityLeak(Class<?> cls)60     private void checkActivityLeak(Class<?> cls) throws Exception {
61         final int TEST_COUNT = 5;
62         Intent intent = new Intent();
63         intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
64         intent.setClass(getInstrumentation().getTargetContext(), cls);
65         ArrayList<WeakReference<Activity>> refs =
66                 new ArrayList<WeakReference<Activity>>();
67         for (int i = 0; i < TEST_COUNT; i++) {
68             Activity activity = getInstrumentation().startActivitySync(intent);
69             refs.add(new WeakReference<Activity>(activity));
70             activity.finish();
71             getInstrumentation().waitForIdleSync();
72             activity = null;
73         }
74         Runtime.getRuntime().gc();
75         Runtime.getRuntime().runFinalization();
76         Runtime.getRuntime().gc();
77         int refCount = 0;
78         for (WeakReference<Activity> c: refs) {
79             if (c.get() != null) refCount++;
80         }
81         // If applications are leaking activity, every reference is reachable.
82         assertTrue(refCount != TEST_COUNT);
83     }
84 }
85