/*

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 * 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.

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/*

 * @test

 * @bug 8034775

 * @summary Ensures correct minimal number of compiler threads (provided by -XX:CICompilerCount=)

 * @library /test/lib

 * @modules java.base/jdk.internal.misc

 *          java.management

 *

 * @run driver compiler.startup.NumCompilerThreadsCheck

 */

package compiler.startup;

import jdk.test.lib.process.OutputAnalyzer;

import jdk.test.lib.Platform;

import jdk.test.lib.process.ProcessTools;

public class NumCompilerThreadsCheck {

  public static void main(String[] args) throws Exception {

    ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:CICompilerCount=-1");

    OutputAnalyzer out = new OutputAnalyzer(pb.start());

    String expectedOutput = "outside the allowed range";

    out.shouldContain(expectedOutput);

    if (Platform.isZero()) {

      String expectedLowWaterMarkText = "must be at least 0";

      out.shouldContain(expectedLowWaterMarkText);

    }

  }

}