test/hotspot/jtreg/gc/TestAllocateHeapAtError.java

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/* @test TestAllocateHeapAtError.java
 * @key gc
 * @summary Test to check correct handling of non-existent directory passed to AllocateHeapAt option
 * @requires vm.gc != "Z" & os.family != "aix"
 * @library /test/lib
 * @modules java.base/jdk.internal.misc
 */

import java.io.File;
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;
import java.util.UUID;

public class TestAllocateHeapAtError {
  public static void main(String args[]) throws Exception {
    ArrayList<String> vmOpts = new ArrayList();

    String testVmOptsStr = System.getProperty("test.java.opts");
    if (!testVmOptsStr.isEmpty()) {
      String[] testVmOpts = testVmOptsStr.split(" ");
      Collections.addAll(vmOpts, testVmOpts);
    }
    String test_dir = System.getProperty("test.dir", ".");

    File f = null;
    do {
      f = new File(test_dir, UUID.randomUUID().toString());
    } while(f.exists());

    Collections.addAll(vmOpts, new String[] {"-XX:AllocateHeapAt=" + f.getName(),
                                             "-Xlog:gc+heap=info",
                                             "-Xmx32m",
                                             "-Xms32m",
                                             "-version"});

    System.out.print("Testing:\n" + JDKToolFinder.getJDKTool("java"));
    for (int i = 0; i < vmOpts.size(); i += 1) {
      System.out.print(" " + vmOpts.get(i));
    }
    System.out.println();

    ProcessBuilder pb =
      ProcessTools.createJavaProcessBuilder(vmOpts.toArray(new String[vmOpts.size()]));
    OutputAnalyzer output = new OutputAnalyzer(pb.start());

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

    output.shouldContain("Could not create file for Heap");
    output.shouldContain("Error occurred during initialization of VM");
    output.shouldNotHaveExitValue(0);
  }
}