1/*
2 * Copyright (C) 2008 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
17package android.test;
18
19import com.google.android.collect.Lists;
20
21import android.accounts.AccountManager;
22import android.accounts.AccountManagerCallback;
23import android.accounts.AccountManagerFuture;
24import android.accounts.AuthenticatorException;
25import android.accounts.OnAccountsUpdateListener;
26import android.accounts.OperationCanceledException;
27import android.accounts.Account;
28import android.content.ContextWrapper;
29import android.content.ContentResolver;
30import android.content.Intent;
31import android.content.Context;
32import android.content.ServiceConnection;
33import android.content.BroadcastReceiver;
34import android.content.IntentFilter;
35import android.content.pm.PackageManager;
36import android.net.Uri;
37import android.os.Handler;
38
39import java.io.File;
40import java.io.IOException;
41import java.util.concurrent.TimeUnit;
42import java.util.List;
43
44
45/**
46     * A mock context which prevents its users from talking to the rest of the device while
47 * stubbing enough methods to satify code that tries to talk to other packages.
48 */
49public class IsolatedContext extends ContextWrapper {
50
51    private ContentResolver mResolver;
52    private final MockAccountManager mMockAccountManager;
53
54    private List<Intent> mBroadcastIntents = Lists.newArrayList();
55
56    public IsolatedContext(
57            ContentResolver resolver, Context targetContext) {
58        super(targetContext);
59        mResolver = resolver;
60        mMockAccountManager = new MockAccountManager();
61    }
62
63    /** Returns the list of intents that were broadcast since the last call to this method. */
64    public List<Intent> getAndClearBroadcastIntents() {
65        List<Intent> intents = mBroadcastIntents;
66        mBroadcastIntents = Lists.newArrayList();
67        return intents;
68    }
69
70    @Override
71    public ContentResolver getContentResolver() {
72        // We need to return the real resolver so that MailEngine.makeRight can get to the
73        // subscribed feeds provider. TODO: mock out subscribed feeds too.
74        return mResolver;
75    }
76
77    @Override
78    public boolean bindService(Intent service, ServiceConnection conn, int flags) {
79        return false;
80    }
81
82    @Override
83    public Intent registerReceiver(BroadcastReceiver receiver, IntentFilter filter) {
84        return null;
85    }
86
87    @Override
88    public void unregisterReceiver(BroadcastReceiver receiver) {
89        // Ignore
90    }
91
92    @Override
93    public void sendBroadcast(Intent intent) {
94        mBroadcastIntents.add(intent);
95    }
96
97    @Override
98    public void sendOrderedBroadcast(Intent intent, String receiverPermission) {
99        mBroadcastIntents.add(intent);
100    }
101
102    @Override
103    public int checkUriPermission(
104            Uri uri, String readPermission, String writePermission, int pid,
105            int uid, int modeFlags) {
106        return PackageManager.PERMISSION_GRANTED;
107    }
108
109    @Override
110    public int checkUriPermission(Uri uri, int pid, int uid, int modeFlags) {
111        return PackageManager.PERMISSION_GRANTED;
112    }
113
114    @Override
115    public Object getSystemService(String name) {
116        if (Context.ACCOUNT_SERVICE.equals(name)) {
117            return mMockAccountManager;
118        }
119        // No other services exist in this context.
120        return null;
121    }
122
123    private class MockAccountManager extends AccountManager {
124        public MockAccountManager() {
125            super(IsolatedContext.this, null /* IAccountManager */, null /* handler */);
126        }
127
128        public void addOnAccountsUpdatedListener(OnAccountsUpdateListener listener,
129                Handler handler, boolean updateImmediately) {
130            // do nothing
131        }
132
133        public Account[] getAccounts() {
134            return new Account[]{};
135        }
136
137        public AccountManagerFuture<Account[]> getAccountsByTypeAndFeatures(
138                final String type, final String[] features,
139                AccountManagerCallback<Account[]> callback, Handler handler) {
140            return new MockAccountManagerFuture<Account[]>(new Account[0]);
141        }
142
143        public String blockingGetAuthToken(Account account, String authTokenType,
144                boolean notifyAuthFailure)
145                throws OperationCanceledException, IOException, AuthenticatorException {
146            return null;
147        }
148
149
150        /**
151         * A very simple AccountManagerFuture class
152         * that returns what ever was passed in
153         */
154        private class MockAccountManagerFuture<T>
155                implements AccountManagerFuture<T> {
156
157            T mResult;
158
159            public MockAccountManagerFuture(T result) {
160                mResult = result;
161            }
162
163            public boolean cancel(boolean mayInterruptIfRunning) {
164                return false;
165            }
166
167            public boolean isCancelled() {
168                return false;
169            }
170
171            public boolean isDone() {
172                return true;
173            }
174
175            public T getResult()
176                    throws OperationCanceledException, IOException, AuthenticatorException {
177                return mResult;
178            }
179
180            public T getResult(long timeout, TimeUnit unit)
181                    throws OperationCanceledException, IOException, AuthenticatorException {
182                return getResult();
183            }
184        }
185
186    }
187
188    @Override
189    public File getFilesDir() {
190        return new File("/dev/null");
191    }
192}
193