/* * Copyright (c) 2021, 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. */ import java.net.InetAddress; import java.util.Arrays; import java.util.List; import java.util.Map; import java.util.stream.Collectors; import static java.net.spi.InetAddressResolver.LookupPolicy.IPV4; import static java.net.spi.InetAddressResolver.LookupPolicy.IPV4_FIRST; import static java.net.spi.InetAddressResolver.LookupPolicy.IPV6; import static java.net.spi.InetAddressResolver.LookupPolicy.IPV6_FIRST; import jdk.test.lib.net.IPSupport; import jdk.test.lib.NetworkConfiguration; import org.testng.annotations.Test; import org.testng.Assert; import org.testng.SkipException; /* * @test * @summary Test that platform lookup characteristic value is correctly initialized from * system properties affecting order and type of queried addresses. * @library lib providers/simple /test/lib * @build test.library/testlib.ResolutionRegistry simple.provider/impl.SimpleResolverProviderImpl * jdk.test.lib.net.IPSupport LookupPolicyMappingTest * @run testng/othervm LookupPolicyMappingTest * @run testng/othervm -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv6Addresses=true LookupPolicyMappingTest * @run testng/othervm -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv6Addresses=false LookupPolicyMappingTest * @run testng/othervm -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv6Addresses=system LookupPolicyMappingTest * @run testng/othervm -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv6Addresses LookupPolicyMappingTest * @run testng/othervm -Djava.net.preferIPv4Stack=true LookupPolicyMappingTest * @run testng/othervm -Djava.net.preferIPv4Stack=false -Djava.net.preferIPv6Addresses=true LookupPolicyMappingTest * @run testng/othervm -Djava.net.preferIPv4Stack=false -Djava.net.preferIPv6Addresses=false LookupPolicyMappingTest * @run testng/othervm -Djava.net.preferIPv4Stack=false -Djava.net.preferIPv6Addresses=system LookupPolicyMappingTest * @run testng/othervm -Djava.net.preferIPv4Stack=false -Djava.net.preferIPv6Addresses LookupPolicyMappingTest * @run testng/othervm -Djava.net.preferIPv4Stack=false LookupPolicyMappingTest * @run testng/othervm -Djava.net.preferIPv4Stack -Djava.net.preferIPv6Addresses=true LookupPolicyMappingTest * @run testng/othervm -Djava.net.preferIPv4Stack -Djava.net.preferIPv6Addresses=false LookupPolicyMappingTest * @run testng/othervm -Djava.net.preferIPv4Stack -Djava.net.preferIPv6Addresses=system LookupPolicyMappingTest * @run testng/othervm -Djava.net.preferIPv4Stack -Djava.net.preferIPv6Addresses LookupPolicyMappingTest * @run testng/othervm -Djava.net.preferIPv4Stack LookupPolicyMappingTest * @run testng/othervm -Djava.net.preferIPv6Addresses=true LookupPolicyMappingTest * @run testng/othervm -Djava.net.preferIPv6Addresses=false LookupPolicyMappingTest * @run testng/othervm -Djava.net.preferIPv6Addresses=system LookupPolicyMappingTest * @run testng/othervm -Djava.net.preferIPv6Addresses LookupPolicyMappingTest */ public class LookupPolicyMappingTest { @Test public void testSystemProperties() throws Exception { // Check if platform network configuration matches the test requirements, // if not throw a SkipException checkPlatformNetworkConfiguration(); System.err.println("javaTest.org resolved to:" + Arrays.deepToString( InetAddress.getAllByName("javaTest.org"))); // Acquire runtime characteristics from the test NSP int runtimeCharacteristics = impl.SimpleResolverProviderImpl.lastLookupPolicy().characteristics(); // Calculate expected lookup policy characteristic String preferIPv4Stack = System.getProperty("java.net.preferIPv4Stack"); String preferIPv6Addresses = System.getProperty("java.net.preferIPv6Addresses"); String expectedResultsKey = calculateMapKey(preferIPv4Stack, preferIPv6Addresses); int expectedCharacteristics = EXPECTED_RESULTS_MAP.get(expectedResultsKey); Assert.assertTrue(characteristicsMatch( runtimeCharacteristics, expectedCharacteristics), "Unexpected LookupPolicy observed"); } // Throws SkipException if platform doesn't support required IP address types static void checkPlatformNetworkConfiguration() { IPSupport.throwSkippedExceptionIfNonOperational(); IPSupport.printPlatformSupport(System.err); NetworkConfiguration.printSystemConfiguration(System.err); // If preferIPv4=true and no IPv4 - skip if (IPSupport.preferIPv4Stack()) { if (!IPSupport.hasIPv4()) { throw new SkipException("Skip tests - IPv4 support required"); } return; } } record ExpectedResult(String ipv4stack, String ipv6addresses, int characteristics) { ExpectedResult { if (!IPSupport.hasIPv4()) { characteristics = IPV6; } else if (!IPSupport.hasIPv6()) { characteristics = IPV4; } } public String key() { return calculateMapKey(ipv4stack, ipv6addresses); } } /* * Each row describes a combination of 'preferIPv4Stack', 'preferIPv6Addresses' * values and the expected characteristic value */ private static List EXPECTED_RESULTS_TABLE = List.of( new ExpectedResult("true", "true", IPV4), new ExpectedResult("true", "false", IPV4), new ExpectedResult("true", "system", IPV4), new ExpectedResult("true", "", IPV4), new ExpectedResult("true", null, IPV4), new ExpectedResult("false", "true", IPV4 | IPV6 | IPV6_FIRST), new ExpectedResult("false", "false", IPV4 | IPV6 | IPV4_FIRST), new ExpectedResult("false", "system", IPV4 | IPV6), new ExpectedResult("false", "", IPV4 | IPV6 | IPV4_FIRST), new ExpectedResult("false", null, IPV4 | IPV6 | IPV4_FIRST), new ExpectedResult("", "true", IPV4 | IPV6 | IPV6_FIRST), new ExpectedResult("", "false", IPV4 | IPV6 | IPV4_FIRST), new ExpectedResult("", "system", IPV4 | IPV6), new ExpectedResult("", "", IPV4 | IPV6 | IPV4_FIRST), new ExpectedResult("", null, IPV4 | IPV6 | IPV4_FIRST), new ExpectedResult(null, "true", IPV4 | IPV6 | IPV6_FIRST), new ExpectedResult(null, "false", IPV4 | IPV6 | IPV4_FIRST), new ExpectedResult(null, "system", IPV4 | IPV6), new ExpectedResult(null, "", IPV4 | IPV6 | IPV4_FIRST), new ExpectedResult(null, null, IPV4 | IPV6 | IPV4_FIRST)); private static final Map EXPECTED_RESULTS_MAP = calculateExpectedCharacteristics(); private static Map calculateExpectedCharacteristics() { return EXPECTED_RESULTS_TABLE.stream() .collect(Collectors.toUnmodifiableMap( ExpectedResult::key, ExpectedResult::characteristics) ); } private static String calculateMapKey(String ipv4stack, String ipv6addresses) { return ipv4stack + "_" + ipv6addresses; } private static boolean characteristicsMatch(int actual, int expected) { System.err.printf("Comparing characteristics:%n\tActual: %s%n\tExpected: %s%n", Integer.toBinaryString(actual), Integer.toBinaryString(expected)); return (actual & (IPV4 | IPV6 | IPV4_FIRST | IPV6_FIRST)) == expected; } }