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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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
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 *
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 * 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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package gc.nvdimm;

/* @test TestAllocateOldGenAtMultiple.java
 * @key gc
 * @summary Test to check allocation of Java Heap with AllocateOldGenAt option. Has multiple sub-tests to cover different code paths.
 * @requires vm.gc=="null" & os.family != "aix"
 * @requires test.vm.gc.nvdimm
 * @library /test/lib
 * @modules java.base/jdk.internal.misc
 * @requires vm.bits == "64"
 * @run driver gc.nvdimm.TestAllocateOldGenAtMultiple
 */

import jdk.test.lib.JDKToolFinder;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;
import java.util.ArrayList;
import java.util.Collections;

public class TestAllocateOldGenAtMultiple {
  public static void main(String args[]) throws Exception {
    ArrayList<String> flags = new ArrayList<>();
    String test_dir = System.getProperty("test.dir", ".");

    // Extra flags for each of the sub-tests
    String[][] extraFlagsList = {
      {"-Xmx32m", "-Xms32m", "-XX:+UseCompressedOops"},     // 1. With compressedoops enabled.
      {"-Xmx32m", "-Xms32m", "-XX:-UseCompressedOops"},     // 2. With compressedoops disabled.
      {"-Xmx32m", "-Xms32m", "-XX:HeapBaseMinAddress=3g"},  // 3. With user specified HeapBaseMinAddress.
      {"-Xmx4g",  "-Xms4g"},                                // 4. With larger heap size (UnscaledNarrowOop not possible).
      {"-Xmx4g",  "-Xms4g",  "-XX:+UseLargePages"},         // 5. Set UseLargePages.
      {"-Xmx4g",  "-Xms4g",  "-XX:+UseNUMA"}                // 6. Set UseNUMA.
    };

    for (String[] extraFlags : extraFlagsList) {
      flags.clear();
      // Add extra flags specific to the sub-test.
      Collections.addAll(flags, extraFlags);
      // Add common flags
      Collections.addAll(flags, new String[] {"-XX:+UnlockExperimentalVMOptions",
                                               "-XX:AllocateOldGenAt=" + test_dir,
                                               "-version"});
      ProcessBuilder pb =
          ProcessTools.createJavaProcessBuilder(true, flags.toArray(String[]::new));
      OutputAnalyzer output = new OutputAnalyzer(pb.start());

      System.out.println("Output:\n" + output.getOutput());

      output.shouldHaveExitValue(0);
    }
  }
}