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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
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/*
* @ test
* @ bug 8023130 8166026
* @ summary Unit test for java . lang . ProcessBuilder inheritance of standard output and standard error streams
* @ library / test / lib
* @ build jdk . test . lib . process . *
* @ run testng InheritIOTest
*/
import java.util.List;
import static java.lang.ProcessBuilder.Redirect.INHERIT;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import static org.testng.Assert .*;
public class InheritIOTest {
private static final String EXIT_VALUE_TEMPLATE = "exit value: %d" ;
private static final String EXPECTED_RESULT_STDOUT = "message" ;
private static final String EXPECTED_RESULT_STDERR = EXIT_VALUE_TEMPLATE.formatted(0 );
@DataProvider
public Object[][] testCases() {
return new Object[][]{
new Object[] { List.of("InheritIOTest$TestInheritIO" , "printf" , EXPECTED_RESULT_STDOUT) },
new Object[] { List.of("InheritIOTest$TestRedirectInherit" , "printf" , EXPECTED_RESULT_STDOUT) }
};
}
@Test(dataProvider = "testCases" )
public void testInheritWithoutRedirect(List<String> arguments) throws Throwable {
ProcessBuilder processBuilder = ProcessTools.createJavaProcessBuilder(arguments);
OutputAnalyzer outputAnalyzer = ProcessTools.executeCommand(processBuilder);
outputAnalyzer.shouldHaveExitValue(0 );
assertEquals(outputAnalyzer.getStdout(), EXPECTED_RESULT_STDOUT);
assertEquals(outputAnalyzer.getStderr(), EXPECTED_RESULT_STDERR);
}
public static class TestInheritIO {
public static void main(String args[]) throws Throwable {
int err = new ProcessBuilder(args).inheritIO().start().waitFor();
System.err.printf(EXIT_VALUE_TEMPLATE, err);
System.exit(err);
}
}
public static class TestRedirectInherit {
public static void main(String args[]) throws Throwable {
int err = new ProcessBuilder(args)
.redirectInput(INHERIT)
.redirectOutput(INHERIT)
.redirectError(INHERIT)
.start().waitFor();
System.err.printf(EXIT_VALUE_TEMPLATE, err);
System.exit(err);
}
}
}
Messung V0.5 in Prozent C=98 H=88 G=93
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-10-11)
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