hotspot/test/runtime/logging/ModulesTest.java

/*
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 * 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.
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/*
 * @test
 * @summary -Xlog:module should emit logging output
 * @library /test/lib
 * @modules java.base/jdk.internal.misc
 *          java.management
 * @run main ModulesTest
 */

import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;

public class ModulesTest {
    public static void main(String[] args) throws Exception {
        testModuleTrace("-Xlog:module=trace", "-version");
        testModuleLoad("-Xlog:module+load", "-version");
        testModuleUnload("-Xlog:module+unload", "-version");

        // same as -Xlog:module+load -Xlog:module+unload
        testModuleLoad("-verbose:module", "-version");
    }

    static void testModuleTrace(String... args) throws Exception {
        OutputAnalyzer output = run(args);
        output.shouldContain("define_javabase_module(): Definition of module:");
        output.shouldContain("define_javabase_module(): creation of package");
        output.shouldContain("define_module(): creation of module");
        output.shouldContain("define_module(): creation of package");
        output.shouldContain("set_bootloader_unnamed_module(): recording unnamed");
        output.shouldContain("add_module_exports(): package");
        output.shouldContain("add_reads_module(): Adding read from module");
        output.shouldContain("Setting package: class:");
        output.shouldHaveExitValue(0);
    }

    static void testModuleLoad(String... args) throws Exception {
        OutputAnalyzer output = run(args);
        output.shouldContain("java.base location:");
        output.shouldContain("java.management location:");
        output.shouldHaveExitValue(0);
    }

    static void testModuleUnload(String... args) throws Exception {
        OutputAnalyzer output = run(args);
        output.shouldHaveExitValue(0);
    }

    static OutputAnalyzer run(String... args) throws Exception {
        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(args);
        return new OutputAnalyzer(pb.start());
    }
}