8242271: Shenandoah: add test to verify GC mode unlock
Reviewed-by: rkennke
diff --git a/test/hotspot/jtreg/gc/shenandoah/options/TestModeUnlock.java b/test/hotspot/jtreg/gc/shenandoah/options/TestModeUnlock.java
new file mode 100644
index 0000000..c338b27
--- /dev/null
+++ b/test/hotspot/jtreg/gc/shenandoah/options/TestModeUnlock.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2020, Red Hat, Inc. All rights reserved.
+ * 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.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+/*
+ * @test TestModeUnlock
+ * @summary Test that Shenandoah modes are unlocked properly
+ * @key gc
+ * @requires vm.gc.Shenandoah & !vm.graal.enabled
+ * @library /test/lib
+ * @modules java.base/jdk.internal.misc
+ * java.management
+ * @run driver TestModeUnlock
+ */
+
+import jdk.test.lib.process.ProcessTools;
+import jdk.test.lib.process.OutputAnalyzer;
+
+public class TestModeUnlock {
+
+ enum Mode {
+ PRODUCT,
+ DIAGNOSTIC,
+ EXPERIMENTAL,
+ }
+
+ public static void main(String[] args) throws Exception {
+ testWith("-XX:ShenandoahGCMode=normal", Mode.PRODUCT);
+ testWith("-XX:ShenandoahGCMode=iu", Mode.EXPERIMENTAL);
+ testWith("-XX:ShenandoahGCMode=passive", Mode.DIAGNOSTIC);
+ }
+
+ private static void testWith(String h, Mode mode) throws Exception {
+ if (false) { // When ShenandoahGC is experimental flag, this makes no sense to test
+ ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+ "-XX:-UnlockDiagnosticVMOptions",
+ "-XX:-UnlockExperimentalVMOptions",
+ "-XX:+UseShenandoahGC",
+ h,
+ "-version"
+ );
+ OutputAnalyzer output = new OutputAnalyzer(pb.start());
+ switch (mode) {
+ case PRODUCT:
+ output.shouldHaveExitValue(0);
+ break;
+ case DIAGNOSTIC:
+ case EXPERIMENTAL:
+ output.shouldNotHaveExitValue(0);
+ break;
+ }
+ }
+
+ if (false) { // When ShenandoahGC is experimental flag, this makes no sense to test
+ ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+ "-XX:+UnlockDiagnosticVMOptions",
+ "-XX:-UnlockExperimentalVMOptions",
+ "-XX:+UseShenandoahGC",
+ h,
+ "-version"
+ );
+ OutputAnalyzer output = new OutputAnalyzer(pb.start());
+ switch (mode) {
+ case PRODUCT:
+ case DIAGNOSTIC:
+ output.shouldHaveExitValue(0);
+ break;
+ case EXPERIMENTAL:
+ output.shouldNotHaveExitValue(0);
+ break;
+ }
+ }
+
+ {
+ ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+ "-XX:-UnlockDiagnosticVMOptions",
+ "-XX:+UnlockExperimentalVMOptions",
+ "-XX:+UseShenandoahGC",
+ h,
+ "-version"
+ );
+ OutputAnalyzer output = new OutputAnalyzer(pb.start());
+ switch (mode) {
+ case PRODUCT:
+ case EXPERIMENTAL:
+ output.shouldHaveExitValue(0);
+ break;
+ case DIAGNOSTIC:
+ output.shouldNotHaveExitValue(0);
+ break;
+ }
+ }
+ }
+
+}
