--- /dev/null 2014-09-08 10:40:15.076620215 +0400 +++ new/test/compiler/codecache/cli/codeheapsize/JVMStartupRunner.java 2014-12-24 18:56:36.798233347 +0400 @@ -0,0 +1,133 @@ +/* + * 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. + */ +package codeheapsize; + +import common.CodeCacheCLITestCase; +import common.CodeCacheOptions; +import com.oracle.java.testlibrary.ExitCode; +import com.oracle.java.testlibrary.Utils; +import com.oracle.java.testlibrary.cli.CommandLineOptionTest; +import sun.hotspot.code.BlobType; +import java.util.Random; + +/** + * Test case runner aimed to verify option's consistency. + */ +public class JVMStartupRunner implements CodeCacheCLITestCase.Runner { + private static final String INCONSISTENT_CH_SIZES_ERROR + = "Invalid code heap sizes.*"; + + @Override + public void run(CodeCacheCLITestCase.Description testCaseDescription, + CodeCacheOptions options) throws Throwable { + // Everything should be fine when + // sum(all code heap sizes) == reserved CC size + CommandLineOptionTest.verifySameJVMStartup(/* expected messages */ null, + new String[]{ INCONSISTENT_CH_SIZES_ERROR }, + "JVM startup should not fail with consistent code heap sizes", + "JVM output should not contain warning about inconsistent code " + + "heap sizes", ExitCode.OK, options.prepareOptions()); + + verifySingleInconsistentValue(options); + verifyAllInconsistentValues(options); + } + + /** + * Verifies that if at least one of three options will have value, such + * that sum of all three values will be inconsistent, then JVM startup will + * fail. + */ + private static void verifySingleInconsistentValue(CodeCacheOptions options) + throws Throwable { + verifyHeapSizesSum(options.reserved, + scaleCodeHeapSize(options.profiled), options.nonProfiled, + options.nonNmethods); + verifyHeapSizesSum(options.reserved, options.profiled, + scaleCodeHeapSize(options.nonProfiled), options.nonNmethods); + verifyHeapSizesSum(options.reserved, options.profiled, + options.nonProfiled, scaleCodeHeapSize(options.nonNmethods)); + } + + /** + * Verifies that if all three options will have values such that their sum + * is inconsistent with ReservedCodeCacheSize value, then JVM startup will + * fail. + */ + private static void verifyAllInconsistentValues(CodeCacheOptions options) + throws Throwable { + long profiled = options.profiled; + long nonProfiled = options.nonProfiled; + long nonNMethods = options.nonNmethods; + + while (options.reserved == profiled + nonProfiled + nonNMethods) { + profiled = scaleCodeHeapSize(profiled); + nonProfiled = scaleCodeHeapSize(nonProfiled); + nonNMethods = scaleCodeHeapSize(nonNMethods); + } + + verifyHeapSizesSum(options.reserved, profiled, nonProfiled, + nonNMethods); + } + + private static void verifyHeapSizesSum(long reserved, long profiled, + long nonProfiled, long nonNmethods) throws Throwable { + // JVM startup expected to fail when + // sum(all code heap sizes) != reserved CC size + CommandLineOptionTest.verifySameJVMStartup( + new String[]{ INCONSISTENT_CH_SIZES_ERROR }, + /* unexpected messages */ null, + "JVM startup should fail with inconsistent code heap size.", + "JVM output should contain appropriate error message of code " + + "heap sizes are inconsistent", + ExitCode.FAIL, + CommandLineOptionTest.prepareBooleanFlag( + CodeCacheOptions.SEGMENTED_CODE_CACHE, true), + CommandLineOptionTest.prepareNumericFlag( + BlobType.All.sizeOptionName, reserved), + CommandLineOptionTest.prepareNumericFlag( + BlobType.MethodProfiled.sizeOptionName, profiled), + CommandLineOptionTest.prepareNumericFlag( + BlobType.MethodNonProfiled.sizeOptionName, nonProfiled), + CommandLineOptionTest.prepareNumericFlag( + BlobType.NonNMethod.sizeOptionName, nonNmethods)); + } + + /** + * Returns {@code unscaledSize} value scaled by a random factor from + * range (1, 2). If {@code unscaledSize} is not 0, then this + * method will return value that won't be equal to {@code unscaledSize}. + * + * @param unscaledSize The value to be scaled. + * @return {@code unscaledSize} value scaled by a factor from range (1, 2). + */ + private static long scaleCodeHeapSize(long unscaledSize) { + Random random = Utils.getRandomInstance(); + + long scaledSize = unscaledSize; + while (scaledSize == unscaledSize && unscaledSize != 0) { + float scale = 1.0f + random.nextFloat(); + scaledSize = (long) Math.ceil(scale * unscaledSize); + } + return scaledSize; + } +}