TestJpsSanity.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * 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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import jdk.testlibrary.Asserts;
import jdk.testlibrary.OutputAnalyzer;

/*
 * @test
 * @summary This test verifies jps usage and checks that appropriate error message is shown
 *          when running jps with illegal arguments.
 * @library /lib/testlibrary
 * @build jdk.testlibrary.* JpsHelper
 * @run driver TestJpsSanity
 */
public class TestJpsSanity {

    public static void main(String[] args) throws Throwable {
        testJpsUsage();
        testJpsVersion();
        testJpsUnknownHost();
    }

    private static void testJpsUsage() throws Exception {
        OutputAnalyzer output = JpsHelper.jps("-?");
        JpsHelper.verifyOutputAgainstFile(output);

        output = JpsHelper.jps("-help");
        JpsHelper.verifyOutputAgainstFile(output);
    }

    private static void testJpsVersion() throws Exception {
        OutputAnalyzer output = JpsHelper.jps("-version");
        Asserts.assertNotEquals(output.getExitValue(), 0, "Exit code shouldn't be 0");
        Asserts.assertFalse(output.getStderr().isEmpty(), "Error output should not be empty");
        output.shouldContain("illegal argument: -version");
    }

    private static void testJpsUnknownHost() throws Exception {
        String invalidHostName = "Oja781nh2ev7vcvbajdg-Sda1-C";
        OutputAnalyzer output = JpsHelper.jps(invalidHostName);
        Asserts.assertNotEquals(output.getExitValue(), 0, "Exit code shouldn't be 0");
        Asserts.assertFalse(output.getStderr().isEmpty(), "Error output should not be empty");
        output.shouldContain("Unknown host: " + invalidHostName);
    }

}