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      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 
     17 package android.net.wifi;
     18 
     19 import static org.junit.Assert.assertArrayEquals;
     20 import static org.junit.Assert.assertEquals;
     21 import static org.junit.Assert.assertNotEquals;
     22 import static org.junit.Assert.assertTrue;
     23 import static org.junit.Assert.assertFalse;
     24 
     25 import android.os.Parcel;
     26 import android.net.MacAddress;
     27 import android.net.wifi.WifiConfiguration.NetworkSelectionStatus;
     28 import android.net.wifi.WifiInfo;
     29 
     30 import org.junit.Before;
     31 import org.junit.Test;
     32 
     33 /**
     34  * Unit tests for {@link android.net.wifi.WifiConfiguration}.
     35  */
     36 public class WifiConfigurationTest {
     37 
     38     @Before
     39     public void setUp() {
     40     }
     41 
     42     /**
     43      * Check that parcel marshalling/unmarshalling works
     44      *
     45      * Create and populate a WifiConfiguration.
     46      * Marshall and unmashall it, and expect to recover a copy of the original.
     47      * Marshall the resulting object, and expect the bytes to match the
     48      * first marshall result.
     49      */
     50     @Test
     51     public void testWifiConfigurationParcel() {
     52         String cookie = "C O.o |<IE";
     53         WifiConfiguration config = new WifiConfiguration();
     54         config.setPasspointManagementObjectTree(cookie);
     55         MacAddress macBeforeParcel = config.getOrCreateRandomizedMacAddress();
     56         Parcel parcelW = Parcel.obtain();
     57         config.writeToParcel(parcelW, 0);
     58         byte[] bytes = parcelW.marshall();
     59         parcelW.recycle();
     60 
     61         Parcel parcelR = Parcel.obtain();
     62         parcelR.unmarshall(bytes, 0, bytes.length);
     63         parcelR.setDataPosition(0);
     64         WifiConfiguration reconfig = WifiConfiguration.CREATOR.createFromParcel(parcelR);
     65 
     66         // lacking a useful config.equals, check two fields near the end.
     67         assertEquals(cookie, reconfig.getMoTree());
     68         assertEquals(macBeforeParcel, reconfig.getOrCreateRandomizedMacAddress());
     69 
     70         Parcel parcelWW = Parcel.obtain();
     71         reconfig.writeToParcel(parcelWW, 0);
     72         byte[] rebytes = parcelWW.marshall();
     73         parcelWW.recycle();
     74 
     75         assertArrayEquals(bytes, rebytes);
     76     }
     77 
     78     @Test
     79     public void testNetworkSelectionStatusCopy() {
     80         NetworkSelectionStatus networkSelectionStatus = new NetworkSelectionStatus();
     81         networkSelectionStatus.setNotRecommended(true);
     82 
     83         NetworkSelectionStatus copy = new NetworkSelectionStatus();
     84         copy.copy(networkSelectionStatus);
     85 
     86         assertEquals(networkSelectionStatus.isNotRecommended(), copy.isNotRecommended());
     87     }
     88 
     89     @Test
     90     public void testNetworkSelectionStatusParcel() {
     91         NetworkSelectionStatus networkSelectionStatus = new NetworkSelectionStatus();
     92         networkSelectionStatus.setNotRecommended(true);
     93 
     94         Parcel parcelW = Parcel.obtain();
     95         networkSelectionStatus.writeToParcel(parcelW);
     96         byte[] bytes = parcelW.marshall();
     97         parcelW.recycle();
     98 
     99         Parcel parcelR = Parcel.obtain();
    100         parcelR.unmarshall(bytes, 0, bytes.length);
    101         parcelR.setDataPosition(0);
    102 
    103         NetworkSelectionStatus copy = new NetworkSelectionStatus();
    104         copy.readFromParcel(parcelR);
    105 
    106         assertEquals(networkSelectionStatus.isNotRecommended(), copy.isNotRecommended());
    107     }
    108 
    109     @Test
    110     public void testIsOpenNetwork_IsOpen_NullWepKeys() {
    111         WifiConfiguration config = new WifiConfiguration();
    112         config.allowedKeyManagement.clear();
    113         config.wepKeys = null;
    114 
    115         assertTrue(config.isOpenNetwork());
    116     }
    117 
    118     @Test
    119     public void testIsOpenNetwork_IsOpen_ZeroLengthWepKeysArray() {
    120         WifiConfiguration config = new WifiConfiguration();
    121         config.allowedKeyManagement.clear();
    122         config.wepKeys = new String[0];
    123 
    124         assertTrue(config.isOpenNetwork());
    125     }
    126 
    127     @Test
    128     public void testIsOpenNetwork_IsOpen_NullWepKeysArray() {
    129         WifiConfiguration config = new WifiConfiguration();
    130         config.allowedKeyManagement.clear();
    131         config.wepKeys = new String[1];
    132 
    133         assertTrue(config.isOpenNetwork());
    134     }
    135 
    136     @Test
    137     public void testIsOpenNetwork_NotOpen_HasWepKeys() {
    138         WifiConfiguration config = new WifiConfiguration();
    139         config.allowedKeyManagement.clear();
    140         config.wepKeys = new String[] {"test"};
    141 
    142         assertFalse(config.isOpenNetwork());
    143     }
    144 
    145     @Test
    146     public void testIsOpenNetwork_NotOpen_HasNullWepKeyFollowedByNonNullKey() {
    147         WifiConfiguration config = new WifiConfiguration();
    148         config.allowedKeyManagement.clear();
    149         config.wepKeys = new String[] {null, null, "test"};
    150 
    151         assertFalse(config.isOpenNetwork());
    152     }
    153 
    154     @Test
    155     public void testIsOpenNetwork_NotOpen_HasAuthType() {
    156         for (int keyMgmt = 0; keyMgmt < WifiConfiguration.KeyMgmt.strings.length; keyMgmt++) {
    157             if (keyMgmt == WifiConfiguration.KeyMgmt.NONE) continue;
    158             WifiConfiguration config = new WifiConfiguration();
    159             config.allowedKeyManagement.clear();
    160             config.allowedKeyManagement.set(keyMgmt);
    161             config.wepKeys = null;
    162 
    163             assertFalse("Open network reported when key mgmt was set to "
    164                             + WifiConfiguration.KeyMgmt.strings[keyMgmt], config.isOpenNetwork());
    165         }
    166     }
    167 
    168     @Test
    169     public void testIsOpenNetwork_NotOpen_HasAuthTypeNoneAndMore() {
    170         WifiConfiguration config = new WifiConfiguration();
    171         config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
    172         config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_EAP);
    173         config.wepKeys = null;
    174 
    175         assertFalse(config.isOpenNetwork());
    176     }
    177 
    178     @Test
    179     public void testGetOrCreateRandomizedMacAddress_SavesAndReturnsSameAddress() {
    180         WifiConfiguration config = new WifiConfiguration();
    181         MacAddress defaultMac = MacAddress.fromString(WifiInfo.DEFAULT_MAC_ADDRESS);
    182         assertEquals(defaultMac, config.getRandomizedMacAddress());
    183 
    184         MacAddress firstMacAddress = config.getOrCreateRandomizedMacAddress();
    185         MacAddress secondMacAddress = config.getOrCreateRandomizedMacAddress();
    186 
    187         assertNotEquals(defaultMac, firstMacAddress);
    188         assertEquals(firstMacAddress, secondMacAddress);
    189     }
    190 
    191     @Test
    192     public void testSetRandomizedMacAddress_ChangesSavedAddress() {
    193         WifiConfiguration config = new WifiConfiguration();
    194         MacAddress defaultMac = MacAddress.fromString(WifiInfo.DEFAULT_MAC_ADDRESS);
    195         assertEquals(defaultMac, config.getRandomizedMacAddress());
    196 
    197         MacAddress macToChangeInto = MacAddress.createRandomUnicastAddress();
    198         config.setRandomizedMacAddress(macToChangeInto);
    199         MacAddress macAfterChange = config.getRandomizedMacAddress();
    200 
    201         assertEquals(macToChangeInto, macAfterChange);
    202     }
    203 
    204     @Test
    205     public void testGetOrCreateRandomizedMacAddress_ReRandomizesInvalidAddress() {
    206         WifiConfiguration config =  new WifiConfiguration();
    207 
    208         MacAddress defaultMac = MacAddress.fromString(WifiInfo.DEFAULT_MAC_ADDRESS);
    209         MacAddress macAddressZeroes = MacAddress.ALL_ZEROS_ADDRESS;
    210         MacAddress macAddressMulticast = MacAddress.fromString("03:ff:ff:ff:ff:ff");
    211         MacAddress macAddressGlobal = MacAddress.fromString("fc:ff:ff:ff:ff:ff");
    212 
    213         config.setRandomizedMacAddress(null);
    214         MacAddress macAfterChange = config.getOrCreateRandomizedMacAddress();
    215         assertNotEquals(macAfterChange, null);
    216 
    217         config.setRandomizedMacAddress(defaultMac);
    218         macAfterChange = config.getOrCreateRandomizedMacAddress();
    219         assertNotEquals(macAfterChange, defaultMac);
    220 
    221         config.setRandomizedMacAddress(macAddressZeroes);
    222         macAfterChange = config.getOrCreateRandomizedMacAddress();
    223         assertNotEquals(macAfterChange, macAddressZeroes);
    224 
    225         config.setRandomizedMacAddress(macAddressMulticast);
    226         macAfterChange = config.getOrCreateRandomizedMacAddress();
    227         assertNotEquals(macAfterChange, macAddressMulticast);
    228 
    229         config.setRandomizedMacAddress(macAddressGlobal);
    230         macAfterChange = config.getOrCreateRandomizedMacAddress();
    231         assertNotEquals(macAfterChange, macAddressGlobal);
    232     }
    233 
    234     @Test
    235     public void testSetRandomizedMacAddress_DoesNothingWhenNull() {
    236         WifiConfiguration config = new WifiConfiguration();
    237         MacAddress defaultMac = MacAddress.fromString(WifiInfo.DEFAULT_MAC_ADDRESS);
    238         config.setRandomizedMacAddress(null);
    239         assertEquals(defaultMac, config.getRandomizedMacAddress());
    240     }
    241 }
    242