Mercurial > hg > graal-compiler
view test/testlibrary_tests/whitebox/vm_flags/VmFlagTest.java @ 21597:c0f9aa6dc4cd
Introduce StackStoreOp.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Thu, 28 May 2015 13:06:01 +0200 |
parents | 0c48231c5c84 |
children |
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/* * 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 java.util.Objects; import java.util.function.BiConsumer; import java.util.function.Function; import sun.hotspot.WhiteBox; import sun.management.*; import com.sun.management.*; import com.oracle.java.testlibrary.*; public final class VmFlagTest<T> { public static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox(); private static final String NONEXISTENT_FLAG = "NonexistentFlag"; private final String flagName; private final BiConsumer<T, T> test; private final BiConsumer<String, T> set; private final Function<String, T> get; protected VmFlagTest(String flagName, BiConsumer<String, T> set, Function<String, T> get, boolean isPositive) { this.flagName = flagName; this.set = set; this.get = get; if (isPositive) { test = this::testPositive; } else { test = this::testNegative; } } private void setNewValue(T value) { set.accept(flagName, value); } private T getValue() { T t = get.apply(flagName); System.out.println("T = " + t); return t; } protected static <T> void runTest(String existentFlag, T[] tests, BiConsumer<String, T> set, Function<String, T> get) { runTest(existentFlag, tests, tests, set, get); } protected static <T> void runTest(String existentFlag, T[] tests, T[] results, BiConsumer<String, T> set, Function<String, T> get) { if (existentFlag != null) { new VmFlagTest(existentFlag, set, get, true).test(tests, results); } new VmFlagTest(NONEXISTENT_FLAG, set, get, false).test(tests, results); } public final void test(T[] tests, T[] results) { Asserts.assertEQ(tests.length, results.length, "[TESTBUG] tests.length != results.length"); for (int i = 0, n = tests.length ; i < n; ++i) { test.accept(tests[i], results[i]); } } protected String getVMOptionAsString() { HotSpotDiagnosticMXBean diagnostic = ManagementFactoryHelper.getDiagnosticMXBean(); VMOption tmp; try { tmp = diagnostic.getVMOption(flagName); } catch (IllegalArgumentException e) { tmp = null; } return tmp == null ? null : tmp.getValue(); } private void testPositive(T value, T expected) { Asserts.assertEQ(getVMOptionAsString(), asString(getValue())); setNewValue(value); String newValue = getVMOptionAsString(); Asserts.assertEQ(newValue, asString(expected)); Asserts.assertEQ(getVMOptionAsString(), asString(getValue())); } private void testNegative(T value, T expected) { String oldValue = getVMOptionAsString(); Asserts.assertEQ(oldValue, asString(getValue())); setNewValue(value); String newValue = getVMOptionAsString(); Asserts.assertEQ(oldValue, newValue); } private String asString(Object value) { return value == null ? null : "" + value; } }