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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.server.wifi;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import android.content.Context;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiConfiguration.KeyMgmt;
import android.test.suitebuilder.annotation.SmallTest;
import com.android.internal.R;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import java.io.File;
import java.lang.reflect.Method;
/**
* Unit tests for {@link com.android.server.wifi.WifiApConfigStore}.
*/
@SmallTest
public class WifiApConfigStoreTest {
private static final String TAG = "WifiApConfigStoreTest";
private static final String TEST_AP_CONFIG_FILE_PREFIX = "APConfig_";
private static final String TEST_DEFAULT_2G_CHANNEL_LIST = "1,2,3,4,5,6";
private static final String TEST_DEFAULT_AP_SSID = "TestAP";
private static final String TEST_CONFIGURED_AP_SSID = "ConfiguredAP";
@Mock Context mContext;
@Mock BackupManagerProxy mBackupManagerProxy;
File mApConfigFile;
@Before
public void setUp() throws Exception {
MockitoAnnotations.initMocks(this);
/* Create a temporary file for AP config file storage. */
mApConfigFile = File.createTempFile(TEST_AP_CONFIG_FILE_PREFIX, "");
/* Setup expectations for Resources to return some default settings. */
MockResources resources = new MockResources();
resources.setString(R.string.config_wifi_framework_sap_2G_channel_list,
TEST_DEFAULT_2G_CHANNEL_LIST);
resources.setString(R.string.wifi_tether_configure_ssid_default,
TEST_DEFAULT_AP_SSID);
when(mContext.getResources()).thenReturn(resources);
}
@After
public void cleanUp() {
/* Remove the temporary AP config file. */
mApConfigFile.delete();
}
/**
* Generate a WifiConfiguration based on the specified parameters.
*/
private WifiConfiguration setupApConfig(
String ssid, String preSharedKey, int keyManagement, int band, int channel) {
WifiConfiguration config = new WifiConfiguration();
config.SSID = ssid;
config.preSharedKey = preSharedKey;
config.allowedKeyManagement.set(keyManagement);
config.apBand = band;
config.apChannel = channel;
return config;
}
private void writeApConfigFile(WifiConfiguration config) throws Exception {
Method m = WifiApConfigStore.class.getDeclaredMethod(
"writeApConfiguration", String.class, WifiConfiguration.class);
m.setAccessible(true);
m.invoke(null, mApConfigFile.getPath(), config);
}
private void verifyApConfig(WifiConfiguration config1, WifiConfiguration config2) {
assertEquals(config1.SSID, config2.SSID);
assertEquals(config1.preSharedKey, config2.preSharedKey);
assertEquals(config1.getAuthType(), config2.getAuthType());
assertEquals(config1.apBand, config2.apBand);
assertEquals(config1.apChannel, config2.apChannel);
}
private void verifyDefaultApConfig(WifiConfiguration config) {
assertEquals(TEST_DEFAULT_AP_SSID, config.SSID);
assertTrue(config.allowedKeyManagement.get(KeyMgmt.WPA2_PSK));
}
/**
* AP Configuration is not specified in the config file,
* WifiApConfigStore should fallback to use the default configuration.
*/
@Test
public void initWithDefaultConfiguration() throws Exception {
WifiApConfigStore store = new WifiApConfigStore(
mContext, mBackupManagerProxy, mApConfigFile.getPath());
verifyDefaultApConfig(store.getApConfiguration());
}
/**
* Verify WifiApConfigStore can correctly load the existing configuration
* from the config file.
*/
@Test
public void initWithExistingConfiguration() throws Exception {
WifiConfiguration expectedConfig = setupApConfig(
"ConfiguredAP", /* SSID */
"randomKey", /* preshared key */
KeyMgmt.WPA_EAP, /* key management */
1, /* AP band (5GHz) */
40 /* AP channel */);
writeApConfigFile(expectedConfig);
WifiApConfigStore store = new WifiApConfigStore(
mContext, mBackupManagerProxy, mApConfigFile.getPath());
verifyApConfig(expectedConfig, store.getApConfiguration());
}
/**
* Verify the handling of setting a null ap configuration.
* WifiApConfigStore should fallback to the default configuration when
* null ap configuration is provided.
*/
@Test
public void setNullApConfiguration() throws Exception {
/* Initialize WifiApConfigStore with existing configuration. */
WifiConfiguration expectedConfig = setupApConfig(
"ConfiguredAP", /* SSID */
"randomKey", /* preshared key */
KeyMgmt.WPA_EAP, /* key management */
1, /* AP band (5GHz) */
40 /* AP channel */);
writeApConfigFile(expectedConfig);
WifiApConfigStore store = new WifiApConfigStore(
mContext, mBackupManagerProxy, mApConfigFile.getPath());
verifyApConfig(expectedConfig, store.getApConfiguration());
store.setApConfiguration(null);
verifyDefaultApConfig(store.getApConfiguration());
verify(mBackupManagerProxy).notifyDataChanged();
}
/**
* Verify AP configuration is correctly updated via setApConfiguration call.
*/
@Test
public void updateApConfiguration() throws Exception {
/* Initialize WifiApConfigStore with default configuration. */
WifiApConfigStore store = new WifiApConfigStore(
mContext, mBackupManagerProxy, mApConfigFile.getPath());
verifyDefaultApConfig(store.getApConfiguration());
/* Update with a valid configuration. */
WifiConfiguration expectedConfig = setupApConfig(
"ConfiguredAP", /* SSID */
"randomKey", /* preshared key */
KeyMgmt.WPA_EAP, /* key management */
1, /* AP band (5GHz) */
40 /* AP channel */);
store.setApConfiguration(expectedConfig);
verifyApConfig(expectedConfig, store.getApConfiguration());
verify(mBackupManagerProxy).notifyDataChanged();
}
}
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