| /* |
| * 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"); |
| } |
| |
| } |
| |