1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
/*
* Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/* @test
* @bug 8081678 8131155
* @summary Tests for stream returning methods
* @library /lib/testlibrary/bootlib
* @build java.base/java.util.stream.OpTestCase
* @run testng/othervm NetworkInterfaceStreamTest
* @run testng/othervm -Djava.net.preferIPv4Stack=true NetworkInterfaceStreamTest
*/
import org.testng.annotations.Test;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.function.Supplier;
import java.util.stream.OpTestCase;
import java.util.stream.Stream;
import java.util.stream.TestData;
public class NetworkInterfaceStreamTest extends OpTestCase {
private final static boolean IS_WINDOWS = System.getProperty("os.name").startsWith("Windows");
@Test
public void testNetworkInterfaces() throws SocketException {
Supplier<Stream<NetworkInterface>> ss = () -> {
try {
return NetworkInterface.networkInterfaces()
.filter(ni -> isIncluded(ni));
}
catch (SocketException e) {
throw new RuntimeException(e);
}
};
Collection<NetworkInterface> enums = Collections.list(NetworkInterface.getNetworkInterfaces());
Collection<NetworkInterface> expected = new ArrayList<>();
enums.forEach(ni -> {
if (isIncluded(ni)) {
expected.add(ni);
}
});
withData(TestData.Factory.ofSupplier("Top-level network interfaces", ss))
.stream(s -> s)
.expectedResult(expected)
.exercise();
}
private Collection<NetworkInterface> getAllNetworkInterfaces() throws SocketException {
Collection<NetworkInterface> anis = new ArrayList<>();
for (NetworkInterface ni : Collections.list(NetworkInterface.getNetworkInterfaces())) {
getAllSubNetworkInterfaces(ni, anis);
}
return anis;
}
private void getAllSubNetworkInterfaces(NetworkInterface ni, Collection<NetworkInterface> result) {
if (isIncluded(ni)) {
result.add(ni);
}
for (NetworkInterface sni : Collections.list(ni.getSubInterfaces())) {
getAllSubNetworkInterfaces(sni, result);
}
}
private Stream<NetworkInterface> allNetworkInterfaces() throws SocketException {
return NetworkInterface.networkInterfaces()
.filter(ni -> isIncluded(ni))
.flatMap(this::allSubNetworkInterfaces);
}
private Stream<NetworkInterface> allSubNetworkInterfaces(NetworkInterface ni) {
return Stream.concat(
Stream.of(ni),
ni.subInterfaces().filter(sni -> isIncluded(sni)).flatMap(this::allSubNetworkInterfaces));
}
@Test
public void testSubNetworkInterfaces() throws SocketException {
Supplier<Stream<NetworkInterface>> ss = () -> {
try {
return allNetworkInterfaces();
}
catch (SocketException e) {
throw new RuntimeException(e);
}
};
Collection<NetworkInterface> expected = getAllNetworkInterfaces();
withData(TestData.Factory.ofSupplier("All network interfaces", ss))
.stream(s -> s)
.expectedResult(expected)
.exercise();
}
@Test
public void testInetAddresses() throws SocketException {
Supplier<Stream<InetAddress>> ss = () -> {
try {
return NetworkInterface.networkInterfaces()
.filter(ni -> isIncluded(ni))
.flatMap(NetworkInterface::inetAddresses);
}
catch (SocketException e) {
throw new RuntimeException(e);
}
};
Collection<NetworkInterface> nis = Collections.list(NetworkInterface.getNetworkInterfaces());
Collection<InetAddress> expected = new ArrayList<>();
for (NetworkInterface ni : nis) {
if (isIncluded(ni)) {
expected.addAll(Collections.list(ni.getInetAddresses()));
}
}
withData(TestData.Factory.ofSupplier("All inet addresses", ss))
.stream(s -> s)
.expectedResult(expected)
.exercise();
}
/**
* Check if the input network interface should be included in the test. It is necessary to exclude
* "Teredo Tunneling Pseudo-Interface" whose configuration can be variable during a test run.
*
* @param ni a network interace
* @return false if it is a "Teredo Tunneling Pseudo-Interface", otherwise true.
*/
private boolean isIncluded(NetworkInterface ni) {
if (!IS_WINDOWS) {
return true;
}
String dName = ni.getDisplayName();
return dName == null || !dName.contains("Teredo");
}
}
|
