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
17package com.android.connectivitymanagertest.functional;
18
19import android.net.wifi.WifiConfiguration;
20import android.os.SystemClock;
21import android.test.suitebuilder.annotation.LargeTest;
22
23import com.android.connectivitymanagertest.ConnectivityManagerTestBase;
24import com.android.connectivitymanagertest.WifiConfigurationHelper;
25
26import java.io.BufferedReader;
27import java.io.File;
28import java.io.FileReader;
29import java.io.IOException;
30import java.util.List;
31
32/**
33 * Test Wi-Fi connection with different configuration
34 * To run this tests:
35 *     adb shell am instrument \
36 *         -e class com.android.connectivitymanagertest.functional.WifiConnectionTest \
37 *         -w com.android.connectivitymanagertest/.ConnectivityManagerTestRunner
38 */
39public class WifiConnectionTest extends ConnectivityManagerTestBase {
40    private static final String WIFI_CONFIG_FILE = "/data/wifi_configs.json";
41    private static final long PAUSE_DURATION_MS = 60 * 1000;
42
43    public WifiConnectionTest() {
44        super(WifiConnectionTest.class.getSimpleName());
45    }
46
47    @Override
48    public void setUp() throws Exception {
49        super.setUp();
50        assertTrue("Failed to enable wifi", enableWifi());
51    }
52
53    @Override
54    public void tearDown() throws Exception {
55        removeConfiguredNetworksAndDisableWifi();
56        super.tearDown();
57    }
58
59    @LargeTest
60    public void testWifiConnections() {
61        List<WifiConfiguration> wifiConfigs = loadConfigurations();
62
63        printWifiConfigurations(wifiConfigs);
64
65        assertFalse("No configurations to test against", wifiConfigs.isEmpty());
66
67        boolean shouldPause = false;
68        for (WifiConfiguration config : wifiConfigs) {
69            if (shouldPause) {
70                logv("Pausing for %d seconds", PAUSE_DURATION_MS / 1000);
71                SystemClock.sleep(PAUSE_DURATION_MS);
72            }
73            logv("Start wifi connection test to: %s", config.SSID);
74            connectToWifi(config);
75
76            // verify that connection actually works
77            assertTrue("No connectivity at end of test", checkNetworkConnectivity());
78
79            // Disconnect and remove the network
80            assertTrue("Unable to remove network", disconnectAP());
81            logv("End wifi connection test to: %s", config.SSID);
82
83            shouldPause = true;
84        }
85    }
86
87    /**
88     * Load the configuration file from the root of the data partition
89     */
90    private List<WifiConfiguration> loadConfigurations() {
91        BufferedReader reader = null;
92        try {
93            reader = new BufferedReader(new FileReader(new File(WIFI_CONFIG_FILE)));
94            StringBuffer jsonBuffer = new StringBuffer();
95            String line;
96            while ((line = reader.readLine()) != null) {
97                jsonBuffer.append(line);
98            }
99            return WifiConfigurationHelper.parseJson(jsonBuffer.toString());
100        } catch (IllegalArgumentException | IOException e) {
101            throw new AssertionError("Error parsing file", e);
102        } finally {
103            if (reader != null) {
104                try {
105                    reader.close();
106                } catch (IOException e) {
107                    // Ignore
108                }
109            }
110        }
111    }
112
113    /**
114     * Print the wifi configurations to test against.
115     */
116    private void printWifiConfigurations(List<WifiConfiguration> wifiConfigs) {
117        logv("Wifi configurations to be tested");
118        for (WifiConfiguration config : wifiConfigs) {
119            logv(config.toString());
120        }
121    }
122}
123