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      1 /*
      2  * Copyright (C) 2015 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.server.wifi;
     18 
     19 import static org.junit.Assert.assertTrue;
     20 import static org.mockito.Mockito.mock;
     21 
     22 import android.os.Handler;
     23 import android.os.Message;
     24 import android.util.SparseArray;
     25 
     26 import java.util.HashMap;
     27 import java.util.Map;
     28 
     29 /**
     30  * Creates a mock WifiMonitor.
     31  * WARNING: This does not perfectly mock the behavior of WifiMonitor at the moment
     32  *          ex. startMonitoring does nothing and will not send a connection/disconnection event
     33  */
     34 public class MockWifiMonitor extends  WifiMonitor {
     35     private final Map<String, SparseArray<Handler>> mHandlerMap = new HashMap<>();
     36 
     37     public MockWifiMonitor() {
     38         super(mock(WifiInjector.class));
     39     }
     40 
     41     @Override
     42     public void registerHandler(String iface, int what, Handler handler) {
     43         SparseArray<Handler> ifaceHandlers = mHandlerMap.get(iface);
     44         if (ifaceHandlers == null) {
     45             ifaceHandlers = new SparseArray<>();
     46             mHandlerMap.put(iface, ifaceHandlers);
     47         }
     48         ifaceHandlers.put(what, handler);
     49     }
     50 
     51     @Override
     52     public synchronized void startMonitoring(String iface, boolean isStaIface) {
     53         return;
     54     }
     55 
     56     /**
     57      * Send a message and assert that it was dispatched to a handler
     58      */
     59     public void sendMessage(String iface, int what) {
     60         sendMessage(iface, Message.obtain(null, what));
     61     }
     62 
     63     public void sendMessage(String iface, Message message) {
     64         SparseArray<Handler> ifaceHandlers = mHandlerMap.get(iface);
     65         if (ifaceHandlers != null) {
     66             assertTrue("No handler for iface=" + iface + ",what=" + message.what,
     67                     sendMessage(ifaceHandlers, message));
     68         } else {
     69             boolean sent = false;
     70             for (Map.Entry<String, SparseArray<Handler>> entry : mHandlerMap.entrySet()) {
     71                 if (sendMessage(entry.getValue(), Message.obtain(message))) {
     72                     sent = true;
     73                 }
     74             }
     75             assertTrue("No handler for message with nonexistant iface, iface=" + iface
     76                     + ",what=" + message.what, sent);
     77         }
     78     }
     79 
     80     private boolean sendMessage(SparseArray<Handler> ifaceHandlers, Message message) {
     81         Handler handler = ifaceHandlers.get(message.what);
     82         if (handler != null) {
     83             message.setTarget(handler);
     84             message.sendToTarget();
     85             return true;
     86         }
     87         return false;
     88     }
     89 
     90 }
     91