| /* |
| * Copyright (C) 2019 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.*; |
| import static org.mockito.Mockito.*; |
| |
| import android.net.MacAddress; |
| import android.net.wifi.WifiConfiguration; |
| |
| import androidx.test.filters.SmallTest; |
| |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.mockito.Mock; |
| import org.mockito.MockitoAnnotations; |
| |
| import java.security.ProviderException; |
| import java.util.Random; |
| |
| import javax.crypto.Mac; |
| |
| /** |
| * Unit tests for {@link com.android.server.wifi.MacAddressUtil}. |
| */ |
| @SmallTest |
| public class MacAddressUtilTest extends WifiBaseTest { |
| private MacAddressUtil mMacAddressUtil; |
| |
| @Mock private Mac mMac; |
| |
| @Before |
| public void setUp() throws Exception { |
| MockitoAnnotations.initMocks(this); |
| mMacAddressUtil = new MacAddressUtil(); |
| } |
| |
| /** |
| * Verifies that calculatePersistentMac generate valid randomized MACs. |
| */ |
| @Test |
| public void testCalculatePersistentMac() { |
| // verify null inputs |
| assertNull(mMacAddressUtil.calculatePersistentMac(null, null)); |
| |
| Random rand = new Random(); |
| // Verify that a the MAC address calculated is valid |
| for (int i = 0; i < 10; i++) { |
| byte[] bytes = new byte[32]; |
| rand.nextBytes(bytes); |
| when(mMac.doFinal(any())).thenReturn(bytes); |
| MacAddress macAddress = mMacAddressUtil.calculatePersistentMac( |
| "TEST_SSID_AND_SECURITY_TYPE_" + i, mMac); |
| assertTrue(WifiConfiguration.isValidMacAddressForRandomization(macAddress)); |
| } |
| } |
| |
| /** |
| * Verify the java.security.ProviderException is caught. |
| */ |
| @Test |
| public void testCalculatePersistentMacCatchesException() { |
| when(mMac.doFinal(any())).thenThrow(new ProviderException("error occurred")); |
| try { |
| assertNull(mMacAddressUtil.calculatePersistentMac("TEST_SSID_AND_SECURITY_TYPE", |
| mMac)); |
| } catch (Exception e) { |
| fail("Exception not caught."); |
| } |
| } |
| } |