| /* |
| * Copyright (C) 2015 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 android.net; |
| |
| import android.net.NetworkUtils; |
| import android.test.suitebuilder.annotation.SmallTest; |
| |
| import java.net.Inet4Address; |
| import java.net.InetAddress; |
| |
| import junit.framework.TestCase; |
| |
| public class NetworkUtilsTest extends TestCase { |
| |
| private InetAddress Address(String addr) { |
| return InetAddress.parseNumericAddress(addr); |
| } |
| |
| private Inet4Address IPv4Address(String addr) { |
| return (Inet4Address) Address(addr); |
| } |
| |
| @SmallTest |
| public void testGetImplicitNetmask() { |
| assertEquals(8, NetworkUtils.getImplicitNetmask(IPv4Address("4.2.2.2"))); |
| assertEquals(8, NetworkUtils.getImplicitNetmask(IPv4Address("10.5.6.7"))); |
| assertEquals(16, NetworkUtils.getImplicitNetmask(IPv4Address("173.194.72.105"))); |
| assertEquals(16, NetworkUtils.getImplicitNetmask(IPv4Address("172.23.68.145"))); |
| assertEquals(24, NetworkUtils.getImplicitNetmask(IPv4Address("192.0.2.1"))); |
| assertEquals(24, NetworkUtils.getImplicitNetmask(IPv4Address("192.168.5.1"))); |
| assertEquals(32, NetworkUtils.getImplicitNetmask(IPv4Address("224.0.0.1"))); |
| assertEquals(32, NetworkUtils.getImplicitNetmask(IPv4Address("255.6.7.8"))); |
| } |
| |
| private void assertInvalidNetworkMask(Inet4Address addr) { |
| try { |
| NetworkUtils.netmaskToPrefixLength(addr); |
| fail("Invalid netmask " + addr.getHostAddress() + " did not cause exception"); |
| } catch (IllegalArgumentException expected) { |
| } |
| } |
| |
| @SmallTest |
| public void testNetmaskToPrefixLength() { |
| assertEquals(0, NetworkUtils.netmaskToPrefixLength(IPv4Address("0.0.0.0"))); |
| assertEquals(9, NetworkUtils.netmaskToPrefixLength(IPv4Address("255.128.0.0"))); |
| assertEquals(17, NetworkUtils.netmaskToPrefixLength(IPv4Address("255.255.128.0"))); |
| assertEquals(23, NetworkUtils.netmaskToPrefixLength(IPv4Address("255.255.254.0"))); |
| assertEquals(31, NetworkUtils.netmaskToPrefixLength(IPv4Address("255.255.255.254"))); |
| assertEquals(32, NetworkUtils.netmaskToPrefixLength(IPv4Address("255.255.255.255"))); |
| |
| assertInvalidNetworkMask(IPv4Address("0.0.0.1")); |
| assertInvalidNetworkMask(IPv4Address("255.255.255.253")); |
| assertInvalidNetworkMask(IPv4Address("255.255.0.255")); |
| } |
| } |