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/*
* Copyright (c) 2015, 2016, 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.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @summary Basic test for Class.getPackage
* @compile Foo.java
* @run testng GetPackageTest
*/
import org.testng.annotations.BeforeTest;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import java.io.IOException;
import java.io.UncheckedIOException;
import java.math.BigInteger;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Properties;
import static org.testng.Assert.*;
public class GetPackageTest {
private static Class<?> fooClass; // definePackage is not called for Foo class
@BeforeTest
public static void loadFooClass() throws ClassNotFoundException {
TestClassLoader loader = new TestClassLoader();
fooClass = loader.loadClass("foo.Foo");
assertEquals(fooClass.getClassLoader(), loader);
}
@DataProvider(name = "testClasses")
public Object[][] testClasses() {
return new Object[][] {
// primitive type, void, array types
{ int.class, null },
{ long[].class, null },
{ Object[][].class, null },
{ void.class, null },
// unnamed package
{ GetPackageTest.class, "" },
// named package
{ fooClass, "foo" },
{ Object.class, "java.lang" },
{ Properties.class, "java.util" },
{ BigInteger.class, "java.math" },
{ Test.class, "org.testng.annotations" },
};
}
@Test(dataProvider = "testClasses")
public void testGetPackage(Class<?> type, String expected) {
Package p = type.getPackage();
if (expected == null) {
assertTrue(p == null);
} else {
assertEquals(p.getName(), expected);
}
}
static class TestClassLoader extends ClassLoader {
public TestClassLoader() {
super();
}
public TestClassLoader(ClassLoader parent) {
super(parent);
}
@Override
protected Class<?> findClass(String name) throws ClassNotFoundException {
Path p = Paths.get(System.getProperty("test.classes", "."));
try {
byte[] bb = Files.readAllBytes(p.resolve("foo/Foo.class"));
return defineClass(name, bb, 0, bb.length);
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
@Override
protected Class<?> loadClass(String cn, boolean resolve) throws ClassNotFoundException {
if (!cn.equals("foo.Foo"))
return super.loadClass(cn, resolve);
return findClass(cn);
}
}
}
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