hotspot/test/compiler/arguments/BMIUnsupportedCPUTest.java
author eistepan
Tue, 16 Dec 2014 14:52:57 +0300
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child 30604 b8d532cb6420
permissions -rw-r--r--
8054892: Improve compiler's CLI tests error reporting Reviewed-by: roland, twisti
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/*
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 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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import com.oracle.java.testlibrary.*;
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import com.oracle.java.testlibrary.cli.*;
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/**
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 * Test on bit manipulation related command line options,
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 * that should be executed on CPU that does not support
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 * required features.
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 *
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 * Note that this test intended to verify that VM could be launched with
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 * specific options and that values of these options processed correctly.
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 * In order to do that test launch a new VM with tested options, the same
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 * flavor-specific flag as one that was used for parent VM (-client, -server,
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 * -minimal, -graal) and '-version'.
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 */
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public class BMIUnsupportedCPUTest extends BMICommandLineOptionTestBase {
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    /**
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     * Construct new test on {@code optionName} option.
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     *
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     * @param optionName Name of the option to be tested
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     *                   without -XX:[+-] prefix.
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     * @param warningMessage Message that can occur in VM output
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     *                       if CPU on test box does not support
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     *                       features required by the option.
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     * @param cpuFeatures CPU features requires by the option.
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     */
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    public BMIUnsupportedCPUTest(String optionName,
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                                 String warningMessage,
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                                 String... cpuFeatures) {
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        super(optionName, warningMessage, null, cpuFeatures);
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    }
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    @Override
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    public void runTestCases() throws Throwable {
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        if (Platform.isX86() || Platform.isX64()) {
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            unsupportedX86CPUTestCases();
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        } else {
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            unsupportedNonX86CPUTestCases();
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        }
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    }
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    /**
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     * Run test cases common for all bit manipulation related VM options
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     * targeted to X86 CPU that does not support required features.
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     *
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     * @throws Throwable if test failed.
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     */
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    public void unsupportedX86CPUTestCases() throws Throwable {
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        /*
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          Verify that VM will successfully start up, but output will contain a
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          warning. VM will be launched with following options:
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          -XX:+<tested option> -version
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        */
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        String errorString = String.format("JVM should start with '-XX:+%s' "
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                + "flag, but output should contain warning.", optionName);
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        CommandLineOptionTest.verifySameJVMStartup(
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                new String[] { warningMessage }, new String[] { errorMessage },
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                errorString, String.format("Option '%s' is unsupported.%n"
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                + "Warning expected to be shown.", optionName), ExitCode.OK,
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                CommandLineOptionTest.prepareBooleanFlag(
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                        optionName, true));
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        /*
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          Verify that VM will successfully startup without any warnings.
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          VM will be launched with following options:
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          -XX:-<tested option> -version
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        */
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        errorString = String.format("JVM should start with '-XX:-%s' flag "
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                        + "without any warnings", optionName);
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        CommandLineOptionTest.verifySameJVMStartup(null,
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                new String[] { warningMessage, errorMessage },
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                errorString, errorString, ExitCode.OK,
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                CommandLineOptionTest.prepareBooleanFlag(optionName, false));
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        /*
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         * Verify that on unsupported CPUs option is off by default. VM will be
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         * launched with following options: -version
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         */
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        CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false",
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                String.format("Option '%s' is expected to have default value "
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                        + "'false' since feature required is not supported "
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                        + "on CPU", optionName));
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        /*
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          Verify that on unsupported CPUs option will be off even if
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          it was explicitly turned on by user. VM will be launched with
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          following options: -XX:+<tested option> -version
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        */
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        CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false",
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                String.format("Option '%s' is expected to have default value"
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                        + " 'false' since feature required is not supported on"
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                        + " CPU even if user set another value.", optionName),
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                CommandLineOptionTest.prepareBooleanFlag(optionName, true));
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    }
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    /**
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     * Run test cases common for all bit manipulation related VM options
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     * targeted to non-X86 CPU that does not support required features.
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     *
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     * @throws Throwable if test failed.
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     */
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    public void unsupportedNonX86CPUTestCases() throws Throwable {
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        /*
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          Verify that VM known nothing about tested option. VM will be launched
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          with following options: -XX:[+-]<tested option> -version
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        */
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        CommandLineOptionTest.verifySameJVMStartup(
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                new String[] { errorMessage }, null,
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                String.format("JVM startup should fail with '-XX:+%s' flag."
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                        + "%nOption should be unknown (non-X86CPU).",
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                        optionName), "", ExitCode.FAIL,
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                CommandLineOptionTest.prepareBooleanFlag(optionName, true));
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        CommandLineOptionTest.verifySameJVMStartup(
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                new String[] { errorMessage }, null,
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                String.format("JVM startup should fail with '-XX:-%s' flag."
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                        + "%nOption should be unknown (non-X86CPU)",
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                        optionName), "", ExitCode.FAIL,
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                CommandLineOptionTest.prepareBooleanFlag(optionName, false));
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    }
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}
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