RouteInfoTest.java revision 6307b35e1d3a8d577877be0b4c9cea1a909b6329 
1/*
2 * Copyright (C) 2010 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 android.net;
18
19import java.lang.reflect.Method;
20import java.net.InetAddress;
21
22import android.net.LinkAddress;
23import android.net.RouteInfo;
24import android.os.Parcel;
25
26import junit.framework.TestCase;
27import android.test.suitebuilder.annotation.SmallTest;
28
29public class RouteInfoTest extends TestCase {
30
31    private InetAddress Address(String addr) {
32        return InetAddress.parseNumericAddress(addr);
33    }
34
35    private LinkAddress Prefix(String prefix) {
36        String[] parts = prefix.split("/");
37        return new LinkAddress(Address(parts[0]), Integer.parseInt(parts[1]));
38    }
39
40    @SmallTest
41    public void testConstructor() {
42        RouteInfo r;
43
44        // Invalid input.
45        try {
46            r = new RouteInfo((LinkAddress) null, null, "rmnet0");
47            fail("Expected RuntimeException:  destination and gateway null");
48        } catch(RuntimeException e) {}
49
50        // Null destination is default route.
51        r = new RouteInfo((LinkAddress) null, Address("2001:db8::1"), null);
52        assertEquals(Prefix("::/0"), r.getDestination());
53        assertEquals(Address("2001:db8::1"), r.getGateway());
54        assertNull(r.getInterface());
55
56        r = new RouteInfo((LinkAddress) null, Address("192.0.2.1"), "wlan0");
57        assertEquals(Prefix("0.0.0.0/0"), r.getDestination());
58        assertEquals(Address("192.0.2.1"), r.getGateway());
59        assertEquals("wlan0", r.getInterface());
60
61        // Null gateway sets gateway to unspecified address (why?).
62        r = new RouteInfo(Prefix("2001:db8:beef:cafe::/48"), null, "lo");
63        assertEquals(Prefix("2001:db8:beef::/48"), r.getDestination());
64        assertEquals(Address("::"), r.getGateway());
65        assertEquals("lo", r.getInterface());
66
67        r = new RouteInfo(Prefix("192.0.2.5/24"), null);
68        assertEquals(Prefix("192.0.2.0/24"), r.getDestination());
69        assertEquals(Address("0.0.0.0"), r.getGateway());
70        assertNull(r.getInterface());
71    }
72
73    public void testMatches() {
74        class PatchedRouteInfo extends RouteInfo {
75            public PatchedRouteInfo(LinkAddress destination, InetAddress gateway, String iface) {
76                super(destination, gateway, iface);
77            }
78
79            public boolean matches(InetAddress destination) {
80                return super.matches(destination);
81            }
82        }
83
84        RouteInfo r;
85
86        r = new PatchedRouteInfo(Prefix("2001:db8:f00::ace:d00d/127"), null, "rmnet0");
87        assertTrue(r.matches(Address("2001:db8:f00::ace:d00c")));
88        assertTrue(r.matches(Address("2001:db8:f00::ace:d00d")));
89        assertFalse(r.matches(Address("2001:db8:f00::ace:d00e")));
90        assertFalse(r.matches(Address("2001:db8:f00::bad:d00d")));
91        assertFalse(r.matches(Address("2001:4868:4860::8888")));
92
93        r = new PatchedRouteInfo(Prefix("192.0.2.0/23"), null, "wlan0");
94        assertTrue(r.matches(Address("192.0.2.43")));
95        assertTrue(r.matches(Address("192.0.3.21")));
96        assertFalse(r.matches(Address("192.0.0.21")));
97        assertFalse(r.matches(Address("8.8.8.8")));
98
99        RouteInfo ipv6Default = new PatchedRouteInfo(Prefix("::/0"), null, "rmnet0");
100        assertTrue(ipv6Default.matches(Address("2001:db8::f00")));
101        assertFalse(ipv6Default.matches(Address("192.0.2.1")));
102
103        RouteInfo ipv4Default = new PatchedRouteInfo(Prefix("0.0.0.0/0"), null, "rmnet0");
104        assertTrue(ipv4Default.matches(Address("255.255.255.255")));
105        assertTrue(ipv4Default.matches(Address("192.0.2.1")));
106        assertFalse(ipv4Default.matches(Address("2001:db8::f00")));
107    }
108
109    private void assertAreEqual(Object o1, Object o2) {
110        assertTrue(o1.equals(o2));
111        assertTrue(o2.equals(o1));
112    }
113
114    private void assertAreNotEqual(Object o1, Object o2) {
115        assertFalse(o1.equals(o2));
116        assertFalse(o2.equals(o1));
117    }
118
119    public void testEquals() {
120        // IPv4
121        RouteInfo r1 = new RouteInfo(Prefix("2001:db8:ace::/48"), Address("2001:db8::1"), "wlan0");
122        RouteInfo r2 = new RouteInfo(Prefix("2001:db8:ace::/48"), Address("2001:db8::1"), "wlan0");
123        assertAreEqual(r1, r2);
124
125        RouteInfo r3 = new RouteInfo(Prefix("2001:db8:ace::/49"), Address("2001:db8::1"), "wlan0");
126        RouteInfo r4 = new RouteInfo(Prefix("2001:db8:ace::/48"), Address("2001:db8::2"), "wlan0");
127        RouteInfo r5 = new RouteInfo(Prefix("2001:db8:ace::/48"), Address("2001:db8::1"), "rmnet0");
128        assertAreNotEqual(r1, r3);
129        assertAreNotEqual(r1, r4);
130        assertAreNotEqual(r1, r5);
131
132        // IPv6
133        r1 = new RouteInfo(Prefix("192.0.2.0/25"), Address("192.0.2.1"), "wlan0");
134        r2 = new RouteInfo(Prefix("192.0.2.0/25"), Address("192.0.2.1"), "wlan0");
135        assertAreEqual(r1, r2);
136
137        r3 = new RouteInfo(Prefix("192.0.2.0/24"), Address("192.0.2.1"), "wlan0");
138        r4 = new RouteInfo(Prefix("192.0.2.0/25"), Address("192.0.2.2"), "wlan0");
139        r5 = new RouteInfo(Prefix("192.0.2.0/25"), Address("192.0.2.1"), "rmnet0");
140        assertAreNotEqual(r1, r3);
141        assertAreNotEqual(r1, r4);
142        assertAreNotEqual(r1, r5);
143
144        // Interfaces (but not destinations or gateways) can be null.
145        r1 = new RouteInfo(Prefix("192.0.2.0/25"), Address("192.0.2.1"), null);
146        r2 = new RouteInfo(Prefix("192.0.2.0/25"), Address("192.0.2.1"), null);
147        r3 = new RouteInfo(Prefix("192.0.2.0/24"), Address("192.0.2.1"), "wlan0");
148        assertAreEqual(r1, r2);
149        assertAreNotEqual(r1, r3);
150    }
151
152    public void testHostRoute() {
153      RouteInfo r;
154
155      r = new RouteInfo(Prefix("0.0.0.0/0"), Address("0.0.0.0"), "wlan0");
156      assertFalse(r.isHostRoute());
157
158      r = new RouteInfo(Prefix("::/0"), Address("::"), "wlan0");
159      assertFalse(r.isHostRoute());
160
161      r = new RouteInfo(Prefix("192.0.2.0/24"), null, "wlan0");
162      assertFalse(r.isHostRoute());
163
164      r = new RouteInfo(Prefix("2001:db8::/48"), null, "wlan0");
165      assertFalse(r.isHostRoute());
166
167      r = new RouteInfo(Prefix("192.0.2.0/32"), Address("0.0.0.0"), "wlan0");
168      assertTrue(r.isHostRoute());
169
170      r = new RouteInfo(Prefix("2001:db8::/128"), Address("::"), "wlan0");
171      assertTrue(r.isHostRoute());
172
173      r = new RouteInfo(Prefix("192.0.2.0/32"), null, "wlan0");
174      assertTrue(r.isHostRoute());
175
176      r = new RouteInfo(Prefix("2001:db8::/128"), null, "wlan0");
177      assertTrue(r.isHostRoute());
178
179      r = new RouteInfo(Prefix("::/128"), Address("fe80::"), "wlan0");
180      assertTrue(r.isHostRoute());
181
182      r = new RouteInfo(Prefix("0.0.0.0/32"), Address("192.0.2.1"), "wlan0");
183      assertTrue(r.isHostRoute());
184    }
185
186    public RouteInfo passThroughParcel(RouteInfo r) {
187        Parcel p = Parcel.obtain();
188        RouteInfo r2 = null;
189        try {
190            r.writeToParcel(p, 0);
191            p.setDataPosition(0);
192            r2 = RouteInfo.CREATOR.createFromParcel(p);
193        } finally {
194            p.recycle();
195        }
196        assertNotNull(r2);
197        return r2;
198    }
199
200    public void assertParcelingIsLossless(RouteInfo r) {
201      RouteInfo r2 = passThroughParcel(r);
202      assertEquals(r, r2);
203    }
204
205    public void testParceling() {
206        RouteInfo r;
207
208        r = new RouteInfo(Prefix("::/0"), Address("2001:db8::"), null);
209        assertParcelingIsLossless(r);
210
211        r = new RouteInfo(Prefix("192.0.2.0/24"), null, "wlan0");
212        assertParcelingIsLossless(r);
213    }
214}
215