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* Copyright ( c ) 2018 , 2022 , Oracle and / or its affiliates . 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 .
*
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*/
import java.lang.System;
import java.util.Arrays;
import java.util.List;
import java.util.Objects;
import java.util.Properties;
import java.util.stream.Collectors;
import org.testng.Assert ;
import org.testng.IMethodInstance;
import org.testng.IMethodInterceptor;
import org.testng.TestListenerAdapter;
import org.testng.TestNG;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
/*
* @ test
* @ bug 4463345 4244670 8030781 8265989 8283620
* @ summary Simple test of System getProperty , setProperty , clearProperty ,
* getProperties , and setProperties
* @ run testng / othervm PropertyTest
*/
@Test
public class PropertyTest {
@DataProvider(name = "requiredProperties" )
static Object[][] requiredProperties() {
return new Object[][]{
{"java.version" },
{"java.version.date" },
{"java.vendor" },
{"java.vendor.url" },
{"java.home" },
{"java.vm.specification.version" },
{"java.vm.specification.vendor" },
{"java.vm.specification.name" },
{"java.vm.version" },
{"java.vm.vendor" },
{"java.vm.name" },
{"java.specification.version" },
{"java.specification.vendor" },
{"java.specification.name" },
{"java.class.version" },
{"java.class.path" },
{"java.library.path" },
{"java.io.tmpdir" },
{"os.arch" },
{"os.version" },
{"file.separator" },
{"path.separator" },
{"line.separator" },
{"user.name" },
{"user.home" },
{"user.dir" },
{"java.runtime.version" },
{"java.runtime.name" },
{"native.encoding" },
{"stdout.encoding" },
{"stderr.encoding" },
};
}
@Test
static void getTest() {
System.setProperty("blah" , "blech" );
Assert .assertEquals(System.getProperty("blah" ), "blech" );
try {
System.getProperty(null );
Assert .fail("Failed: expected NullPointerException" );
} catch (NullPointerException npe) {
// Correct result
}
try {
System.getProperty("" );
Assert .fail("Failed: expected IllegalArgumentException" );
} catch (IllegalArgumentException iae) {
// Correct result
}
}
@Test
static void clearTest() {
System.setProperty("blah" , "blech" );
Assert .assertEquals(System.getProperty("blah" ), "blech" );
System.clearProperty("blah" );
Assert .assertNull(System.getProperty("blah" ));
try {
System.clearProperty(null );
Assert .fail("Failed: expected NullPointerException" );
} catch (NullPointerException npe) {
// Correct result
}
try {
System.clearProperty("" );
Assert .fail("Failed: expected IllegalArgumentException" );
} catch (IllegalArgumentException iae) {
// Correct result
}
}
@Test
static void setTest() {
System.setProperty("blah" , "blech" );
Assert .assertEquals(System.getProperty("blah" ), "blech" );
System.setProperty("blah" , "" );
Assert .assertEquals(System.getProperty("blah" ), "" );
try {
System.setProperty(null , null );
Assert .fail("Failed: expected NullPointerException" );
} catch (NullPointerException npe) {
// Correct result
}
try {
System.setProperty("blah" , null );
Assert .fail("Failed: expected NullPointerException" );
} catch (NullPointerException npe) {
// Correct result
}
try {
System.setProperty(null , "blech" );
Assert .fail("Failed: expected NullPointerException" );
} catch (NullPointerException npe) {
// Correct result
}
try {
System.setProperty("" , "blech" );
Assert .fail("Failed: expected IllegalArgumentException" );
} catch (IllegalArgumentException iae) {
// Correct result
}
try {
System.setProperty("" , "" );
Assert .fail("Failed: expected IllegalArgumentException" );
} catch (IllegalArgumentException iae) {
// Correct result
}
}
@Test
static void replaceSetProperties() {
Properties oldProps = System.getProperties();
Properties newProps = new Properties();
oldProps.forEach( (k,v) -> newProps.put(k,v));
System.setProperties(newProps);
Assert .assertSame(System.getProperties(), newProps,
"getProperties not the same as setProperties" );
final String KEY = "blah" ;
final String VALUE = "blech" ;
// Set via Property instance; get via System methods
newProps.setProperty(KEY, VALUE);
Assert .assertEquals(System.getProperty(KEY), VALUE, KEY);
String s = (String)newProps.remove(KEY);
Assert .assertEquals(s, VALUE);
Assert .assertNull(System.getProperty(KEY), KEY);
// Set via System methods; Get via Property instance;
System.setProperty(KEY, VALUE);
Assert .assertEquals(newProps.getProperty(KEY), VALUE);
String t = System.clearProperty(KEY);
Assert .assertEquals(t, VALUE, KEY);
Assert .assertNull(newProps.getProperty(KEY), KEY);
}
@Test
static void setNullProperties() {
Properties oldProps = System.getProperties();
Properties savedProps = new Properties();
oldProps.forEach((k,v) -> {
if (v == null ) {
throw new RuntimeException("null value, key: " + k);
}
savedProps.put(k,v);
});
// Re-initialize properties
System.setProperties(null );
Properties newProps = System.getProperties();
Object[][] propnames = requiredProperties();
for (Object[] p : propnames) {
String name = (String)p[0 ];
Assert .assertEquals(System.getProperty(name), savedProps.getProperty(name), name);
Assert .assertEquals(newProps.getProperty(name), savedProps.getProperty(name), name);
}
}
// Verify all the required properties have values from System.getProperty and
// System.getProperties()
@Test(dataProvider = "requiredProperties" )
static void checkRequiredProperties(String name) {
Assert .assertNotNull(System.getProperty(name), name);
Properties props = System.getProperties();
Assert .assertNotNull(props.getProperty(name), name);
}
@SuppressWarnings("raw_types" )
@Test(enabled=false )
public static void main(String[] args) {
TestListenerAdapter tla = new TestListenerAdapter();
Class <?>[] testclass = {PropertyTest.class };
TestNG testng = new TestNG();
testng.setTestClasses(testclass);
testng.addListener(tla);
if (args.length > 0 ) {
IMethodInterceptor intercept = (m, c) -> {
List<IMethodInstance> x = m.stream()
.filter(m1 -> m1.getMethod().getMethodName().contains(args[0 ]))
.collect(Collectors.toList());
return x;
};
testng.setMethodInterceptor(intercept);
}
testng.run();
tla.getPassedTests()
.stream().forEach(t -> System.out.printf("Passed: %s%s%n" , t.getName(),
List.of(t.getParameters())));
tla.getFailedTests()
.stream().forEach(t -> System.out.printf("Failed: %s%s%n" , t.getName(),
List.of(t.getParameters())));
}
}
Messung V0.5 in Prozent C=95 H=90 G=92
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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