jdk

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/*
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 * Copyright (c) 2020, 2023, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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package gc.x;
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/*
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 * @test TestAllocateHeapAt
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 * @requires vm.gc.ZSinglegen & os.family == "linux"
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 * @summary Test ZGC with -XX:AllocateHeapAt
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 * @library /test/lib
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 * @run main/othervm gc.x.TestAllocateHeapAt . true
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 * @run main/othervm gc.x.TestAllocateHeapAt non-existing-directory false
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 */
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import jdk.test.lib.process.ProcessTools;
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public class TestAllocateHeapAt {
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    public static void main(String[] args) throws Exception {
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        final String directory = args[0];
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        final boolean exists = Boolean.parseBoolean(args[1]);
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        final String heapBackingFile = "Heap Backing File: " + directory;
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        final String failedToCreateFile = "Failed to create file " + directory;
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        ProcessTools.executeLimitedTestJava(
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            "-XX:+UseZGC",
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            "-XX:-ZGenerational",
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            "-Xlog:gc*",
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            "-Xms32M",
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            "-Xmx32M",
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            "-XX:AllocateHeapAt=" + directory,
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            "-version")
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                .shouldContain(exists ? heapBackingFile : failedToCreateFile)
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                .shouldNotContain(exists ? failedToCreateFile : heapBackingFile)
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                .shouldHaveExitValue(exists ? 0 : 1);
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    }
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}
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