InetAddressTest.java revision 1c039d71d3879f39e3a75b8788e656f7b4f88f08 
1/*
2 * Copyright (C) 2011 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 libcore.java.net;
18
19import java.net.InetAddress;
20
21public class InetAddressTest extends junit.framework.TestCase {
22    public void test_parseNumericAddress() throws Exception {
23        // Regular IPv4.
24        assertEquals("/1.2.3.4", InetAddress.parseNumericAddress("1.2.3.4").toString());
25        // Regular IPv6.
26        assertEquals("/2001:4860:800d::68", InetAddress.parseNumericAddress("2001:4860:800d::68").toString());
27        // Weird IPv4 special cases.
28        assertEquals("/1.2.0.3", InetAddress.parseNumericAddress("1.2.3").toString());
29        assertEquals("/1.0.0.2", InetAddress.parseNumericAddress("1.2").toString());
30        assertEquals("/0.0.0.1", InetAddress.parseNumericAddress("1").toString());
31        assertEquals("/0.0.4.210", InetAddress.parseNumericAddress("1234").toString());
32        // Optional square brackets around IPv6 addresses, including mapped IPv4.
33        assertEquals("/2001:4860:800d::68", InetAddress.parseNumericAddress("[2001:4860:800d::68]").toString());
34        assertEquals("/127.0.0.1", InetAddress.parseNumericAddress("[::ffff:127.0.0.1]").toString());
35        try {
36            // Actual IPv4 addresses may not be surrounded by square brackets.
37            assertEquals("/127.0.0.1", InetAddress.parseNumericAddress("[127.0.0.1]").toString());
38            fail();
39        } catch (IllegalArgumentException expected) {
40        }
41        try {
42            // Almost numeric but invalid...
43            InetAddress.parseNumericAddress("1.");
44            fail();
45        } catch (IllegalArgumentException expected) {
46        }
47        try {
48            // Not even close to numeric...
49            InetAddress.parseNumericAddress("www.google.com");
50            fail();
51        } catch (IllegalArgumentException expected) {
52        }
53        // Strange special cases, for compatibility with InetAddress.getByName.
54        assertTrue(InetAddress.parseNumericAddress(null).isLoopbackAddress());
55        assertTrue(InetAddress.parseNumericAddress("").isLoopbackAddress());
56    }
57
58    public void test_getLoopbackAddress() throws Exception {
59        assertTrue(InetAddress.getLoopbackAddress().isLoopbackAddress());
60    }
61
62    public void test_0() throws Exception {
63        // The RI special-cases "0" for legacy IPv4 applications.
64        assertTrue(InetAddress.getByName("0").isAnyLocalAddress());
65    }
66}
67