1/*
2 * Copyright (C) 2016 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.net.wifi;
18
19import static org.junit.Assert.assertEquals;
20import static org.mockito.Matchers.anyString;
21import static org.mockito.Matchers.eq;
22import static org.mockito.Mockito.atLeastOnce;
23import static org.mockito.Mockito.mock;
24import static org.mockito.Mockito.validateMockitoUsage;
25import static org.mockito.Mockito.verify;
26import static org.mockito.Mockito.when;
27
28import android.content.Context;
29import android.net.wifi.WifiScanner.BssidInfo;
30import android.net.wifi.WifiScanner.BssidListener;
31import android.os.Handler;
32import android.os.Message;
33import android.test.suitebuilder.annotation.SmallTest;
34
35import com.android.server.wifi.BidirectionalAsyncChannelServer;
36import com.android.server.wifi.MockLooper;
37
38import org.junit.After;
39import org.junit.Before;
40import org.junit.Test;
41import org.mockito.ArgumentCaptor;
42import org.mockito.Mock;
43import org.mockito.MockitoAnnotations;
44
45/**
46 * Unit tests for {@link android.net.wifi.WifiScanner}.
47 */
48@SmallTest
49public class WifiScannerTest {
50    @Mock
51    private Context mContext;
52    @Mock
53    private IWifiScanner mService;
54    @Mock
55    private BssidListener mBssidListener;
56
57    private WifiScanner mWifiScanner;
58    private MockLooper mLooper;
59    private Handler mHandler;
60
61    /**
62     * Setup before tests.
63     */
64    @Before
65    public void setUp() throws Exception {
66        MockitoAnnotations.initMocks(this);
67        mLooper = new MockLooper();
68        mHandler = mock(Handler.class);
69        BidirectionalAsyncChannelServer server = new BidirectionalAsyncChannelServer(
70                mContext, mLooper.getLooper(), mHandler);
71        when(mService.getMessenger()).thenReturn(server.getMessenger());
72        mWifiScanner = new WifiScanner(mContext, mService, mLooper.getLooper());
73        mLooper.dispatchAll();
74    }
75
76    /**
77     * Clean up after tests.
78     */
79    @After
80    public void cleanup() {
81        validateMockitoUsage();
82    }
83
84    private void verifySetHotlistMessage(Handler handler) {
85        ArgumentCaptor<Message> messageCaptor = ArgumentCaptor.forClass(Message.class);
86        verify(handler, atLeastOnce()).handleMessage(messageCaptor.capture());
87        assertEquals("message.what is not CMD_SET_HOTLIST",
88                WifiScanner.CMD_SET_HOTLIST,
89                messageCaptor.getValue().what);
90    }
91
92    /**
93     * Test duplicate listeners for bssid tracking.
94     */
95    @Test
96    public void testStartTrackingBssidsDuplicateListeners() throws Exception {
97        BssidInfo[] bssids = new BssidInfo[] {
98                new BssidInfo()
99        };
100
101        // First start tracking succeeds.
102        mWifiScanner.startTrackingBssids(bssids, -100, mBssidListener);
103        mLooper.dispatchAll();
104        verifySetHotlistMessage(mHandler);
105
106        // Second start tracking should fail.
107        mWifiScanner.startTrackingBssids(bssids, -100, mBssidListener);
108        mLooper.dispatchAll();
109        verify(mBssidListener).onFailure(eq(WifiScanner.REASON_DUPLICATE_REQEUST), anyString());
110    }
111}
112