BlobSanityTest.java

/*
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/*
 * @test BlobSanityTest
 * @bug 8132980
 * @library /test/lib
 * @modules java.base/jdk.internal.misc
 * @modules java.management/sun.management
 * @build sun.hotspot.WhiteBox
 * @run driver jdk.test.lib.helpers.ClassFileInstaller sun.hotspot.WhiteBox
 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI BlobSanityTest
 * @summary sanity testing of allocateCodeBlob, freeCodeBlob and getCodeBlob
 */


import sun.hotspot.WhiteBox;

import java.util.function.Consumer;
import jdk.test.lib.Utils;

public class BlobSanityTest {

    private static void runTest(Consumer<Integer> consumer, int val, String testCaseName, Class<? extends Throwable>
            expectedException) {
            System.out.println("Calling " + testCaseName);
            Utils.runAndCheckException(() -> consumer.accept(val), expectedException);
            System.out.println("Looks ok");
    }

    public static void main(String[] args) throws Exception {
        System.out.println("Crash means that sanity check failed");

        WhiteBox wb = WhiteBox.getWhiteBox();

        runTest(wb::freeCodeBlob, 0, "wb::freeCodeBlob(0)", null);
        runTest(wb::getCodeBlob, 0, "wb::getCodeBlob(0)", NullPointerException.class);
        runTest(x -> wb.allocateCodeBlob(x, 0), -1, "wb::allocateCodeBlob(-1,0)", IllegalArgumentException.class);
    }
}