Mercurial > hg > graal-compiler
diff test/gc/arguments/TestSurvivorAlignmentInBytesOption.java @ 20717:4b7c96fba3d8
8037968: Add tests on alignment of objects copied to survivor space
Reviewed-by: jmasa, dfazunen
author | fzhinkin |
---|---|
date | Wed, 26 Nov 2014 14:17:06 +0400 |
parents | |
children | 75d8afb5d37a |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/gc/arguments/TestSurvivorAlignmentInBytesOption.java Wed Nov 26 14:17:06 2014 +0400 @@ -0,0 +1,120 @@ +/* + * Copyright (c) 2014, 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 com.oracle.java.testlibrary.ExitCode; +import com.oracle.java.testlibrary.Utils; +import com.oracle.java.testlibrary.cli.CommandLineOptionTest; + +import java.util.Collections; +import java.util.LinkedList; +import java.util.List; + +/** + * @test + * @bug 8031323 + * @summary Verify SurvivorAlignmentInBytes option processing. + * @library /testlibrary + * @run main TestSurvivorAlignmentInBytesOption + */ +public class TestSurvivorAlignmentInBytesOption { + private static final String[] FILTERED_VM_OPTIONS + = Utils.getFilteredTestJavaOpts( + "UnlockExperimentalVMOptions", + "SurvivorAlignmentInBytes", + "ObjectAlignmentInBytes"); + + public static void main(String args[]) throws Throwable { + String optionName = "SurvivorAlignmentInBytes"; + String optionIsExperimental + = CommandLineOptionTest.getExperimentalOptionErrorMessage( + optionName); + String valueIsTooSmall= ".*SurvivorAlignmentInBytes=.*must be greater" + + " than ObjectAlignmentInBytes.*"; + String mustBePowerOf2 = ".*SurvivorAlignmentInBytes=.*must be " + + "power of 2.*"; + + // Verify that without -XX:+UnlockExperimentalVMOptions usage of + // SurvivorAlignmentInBytes option will cause JVM startup failure + // with the warning message saying that that option is experimental. + CommandLineOptionTest.verifyJVMStartup( + new String[]{optionIsExperimental}, null, ExitCode.FAIL, false, + TestSurvivorAlignmentInBytesOption.prepareOptions( + "-XX:-UnlockExperimentalVMOptions", + CommandLineOptionTest.prepareNumericFlag( + optionName, 64))); + + // Verify that with -XX:+UnlockExperimentalVMOptions passed to JVM + // usage of SurvivorAlignmentInBytes option won't cause JVM startup + // failure. + CommandLineOptionTest.verifyJVMStartup( + null, new String[]{optionIsExperimental}, ExitCode.OK, false, + TestSurvivorAlignmentInBytesOption.prepareOptions( + CommandLineOptionTest.prepareNumericFlag( + optionName, 64))); + + // Verify that if specified SurvivorAlignmentInBytes is lower then + // ObjectAlignmentInBytes, then the JVM startup will fail with + // appropriate error message. + CommandLineOptionTest.verifyJVMStartup( + new String[]{valueIsTooSmall}, null, ExitCode.FAIL, false, + TestSurvivorAlignmentInBytesOption.prepareOptions( + CommandLineOptionTest.prepareNumericFlag( + optionName, 2))); + + // Verify that if specified SurvivorAlignmentInBytes value is not + // a power of 2 then the JVM startup will fail with appropriate error + // message. + CommandLineOptionTest.verifyJVMStartup( + new String[]{mustBePowerOf2}, null, ExitCode.FAIL, false, + TestSurvivorAlignmentInBytesOption.prepareOptions( + CommandLineOptionTest.prepareNumericFlag( + optionName, 127))); + + // Verify that if SurvivorAlignmentInBytes has correct value, then + // the JVM will be started without errors. + CommandLineOptionTest.verifyJVMStartup( + null, new String[]{".*SurvivorAlignmentInBytes.*"}, + ExitCode.OK, false, + TestSurvivorAlignmentInBytesOption.prepareOptions( + CommandLineOptionTest.prepareNumericFlag( + optionName, 128))); + + // Verify that we can setup different SurvivorAlignmentInBytes values. + for (int alignment = 32; alignment <= 128; alignment *= 2) { + CommandLineOptionTest.verifyOptionValue(optionName, + Integer.toString(alignment), false, + TestSurvivorAlignmentInBytesOption.prepareOptions( + CommandLineOptionTest.prepareNumericFlag( + optionName, alignment))); + } + } + + private static String[] prepareOptions(String... options) { + List<String> finalOptions = new LinkedList<>(); + Collections.addAll(finalOptions, + TestSurvivorAlignmentInBytesOption.FILTERED_VM_OPTIONS); + finalOptions.add(CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS); + Collections.addAll(finalOptions, options); + return finalOptions.toArray(new String[finalOptions.size()]); + } +}