| /* |
| * Copyright (c) 2014, 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. |
| */ |
| |
| import java.lang.module.ModuleDescriptor.Exports; |
| import java.lang.module.ResolvedModule; |
| import java.lang.reflect.Layer; |
| import java.lang.reflect.Module; |
| import java.util.function.Predicate; |
| import java.util.stream.Stream; |
| |
| import org.testng.annotations.Test; |
| import static org.testng.Assert.*; |
| |
| /* |
| * @test |
| * @summary Basic test of java.lang.reflect.Module |
| * @modules java.desktop java.xml |
| * @run testng BasicModuleTest |
| */ |
| |
| public class BasicModuleTest { |
| |
| /** |
| * Tests that the given module reads all modules in the boot Layer. |
| */ |
| private void testReadsAllBootModules(Module m) { |
| Layer bootLayer = Layer.boot(); |
| bootLayer.configuration() |
| .modules() |
| .stream() |
| .map(ResolvedModule::name) |
| .map(bootLayer::findModule) |
| .forEach(target -> assertTrue(m.canRead(target.get()))); |
| } |
| |
| /** |
| * Returns {@code true} if the array contains the given object. |
| */ |
| private <T> boolean contains(T[] array, T obj) { |
| return Stream.of(array).anyMatch(obj::equals); |
| } |
| |
| /** |
| * Returns a {@code Predicate} to test if a package is exported. |
| */ |
| private Predicate<Exports> doesExport(String pn) { |
| return e -> (e.source().equals(pn) && !e.isQualified()); |
| } |
| |
| |
| |
| @Test |
| public void testThisModule() { |
| Module thisModule = BasicModuleTest.class.getModule(); |
| Module baseModule = Object.class.getModule(); |
| |
| assertFalse(thisModule.isNamed()); |
| assertTrue(thisModule.getName() == null); |
| assertTrue(thisModule.getDescriptor() == null); |
| assertTrue(thisModule.getLayer() == null); |
| assertTrue(thisModule.toString().startsWith("unnamed module ")); |
| |
| ClassLoader thisLoader = BasicModuleTest.class.getClassLoader(); |
| assertTrue(thisLoader == thisModule.getClassLoader()); |
| assertTrue(thisLoader.getUnnamedModule() == thisModule); |
| |
| // unnamed modules read all other modules |
| ClassLoader cl; |
| cl = ClassLoader.getPlatformClassLoader(); |
| assertTrue(thisModule.canRead(cl.getUnnamedModule())); |
| cl = ClassLoader.getSystemClassLoader(); |
| assertTrue(thisModule.canRead(cl.getUnnamedModule())); |
| testReadsAllBootModules(thisModule); |
| |
| // unnamed modules export all packages |
| assertTrue(thisModule.isExported("")); |
| assertTrue(thisModule.isExported("", thisModule)); |
| assertTrue(thisModule.isExported("", baseModule)); |
| assertTrue(thisModule.isExported("p")); |
| assertTrue(thisModule.isExported("p", thisModule)); |
| assertTrue(thisModule.isExported("p", baseModule)); |
| |
| // this test is in the unnamed package |
| assertTrue(contains(thisModule.getPackages(), "")); |
| } |
| |
| |
| @Test |
| public void testUnnamedModules() { |
| Module thisModule = BasicModuleTest.class.getModule(); |
| Module baseModule = Object.class.getModule(); |
| |
| ClassLoader loader1 = ClassLoader.getSystemClassLoader(); |
| ClassLoader loader2 = loader1.getParent(); |
| |
| Module m1 = loader1.getUnnamedModule(); |
| Module m2 = loader2.getUnnamedModule(); |
| |
| assertTrue(m1 != m2); |
| |
| assertFalse(m1.isNamed()); |
| assertFalse(m2.isNamed()); |
| |
| assertTrue(m1.getLayer() == null); |
| assertTrue(m2.getLayer() == null); |
| |
| assertTrue(m1.toString().startsWith("unnamed module ")); |
| assertTrue(m2.toString().startsWith("unnamed module ")); |
| |
| // unnamed module reads all modules |
| assertTrue(m1.canRead(m2)); |
| assertTrue(m2.canRead(m1)); |
| |
| testReadsAllBootModules(m1); |
| testReadsAllBootModules(m2); |
| |
| assertTrue(m1.isExported("")); |
| assertTrue(m1.isExported("", thisModule)); |
| assertTrue(m1.isExported("", baseModule)); |
| assertTrue(m1.isExported("p")); |
| assertTrue(m1.isExported("p", thisModule)); |
| assertTrue(m1.isExported("p", baseModule)); |
| } |
| |
| |
| |
| @Test |
| public void testBaseModule() { |
| Module base = Object.class.getModule(); |
| Module thisModule = BasicModuleTest.class.getModule(); |
| |
| // getName |
| assertTrue(base.getName().equals("java.base")); |
| |
| // getDescriptor |
| assertTrue(base.getDescriptor().exports().stream() |
| .anyMatch(doesExport("java.lang"))); |
| |
| // getClassLoader |
| assertTrue(base.getClassLoader() == null); |
| |
| // getLayer |
| assertTrue(base.getLayer() == Layer.boot()); |
| |
| // toString |
| assertEquals(base.toString(), "module java.base"); |
| |
| // getPackages |
| assertTrue(contains(base.getPackages(), "java.lang")); |
| |
| // canRead |
| assertTrue(base.canRead(base)); |
| |
| // isExported |
| assertTrue(base.isExported("java.lang")); |
| assertTrue(base.isExported("java.lang", thisModule)); |
| assertTrue(base.isExported("java.lang", base)); |
| assertFalse(base.isExported("jdk.internal.misc")); |
| assertFalse(base.isExported("jdk.internal.misc", thisModule)); |
| assertTrue(base.isExported("jdk.internal.misc", base)); |
| assertFalse(base.isExported("java.wombat")); |
| assertFalse(base.isExported("java.wombat", thisModule)); |
| assertFalse(base.isExported("java.wombat", base)); |
| |
| // isOpen |
| assertFalse(base.isOpen("java.lang")); |
| assertFalse(base.isOpen("java.lang", thisModule)); |
| assertTrue(base.isOpen("java.lang", base)); |
| assertFalse(base.isOpen("jdk.internal.misc")); |
| assertFalse(base.isOpen("jdk.internal.misc", thisModule)); |
| assertTrue(base.isOpen("jdk.internal.misc", base)); |
| assertFalse(base.isOpen("java.wombat")); |
| assertFalse(base.isOpen("java.wombat", thisModule)); |
| assertFalse(base.isOpen("java.wombat", base)); |
| } |
| |
| |
| @Test |
| public void testDesktopModule() { |
| Module desktop = java.awt.Component.class.getModule(); |
| Module base = Object.class.getModule(); |
| Module xml = javax.xml.XMLConstants.class.getModule(); |
| Module thisModule = BasicModuleTest.class.getModule(); |
| |
| // name |
| assertTrue(desktop.getName().equals("java.desktop")); |
| |
| // descriptor |
| assertTrue(desktop.getDescriptor().exports().stream() |
| .anyMatch(doesExport("java.awt"))); |
| |
| // getClassLoader |
| assertTrue(desktop.getClassLoader() == null); |
| |
| // getLayer |
| assertTrue(desktop.getLayer() == Layer.boot()); |
| |
| // toString |
| assertEquals(desktop.toString(), "module java.desktop"); |
| |
| // getPackages |
| assertTrue(contains(desktop.getPackages(), "java.awt")); |
| assertTrue(contains(desktop.getPackages(), "sun.awt")); |
| |
| // canRead |
| assertTrue(desktop.canRead(base)); |
| assertTrue(desktop.canRead(xml)); |
| |
| // isExported |
| assertTrue(desktop.isExported("java.awt")); |
| assertTrue(desktop.isExported("java.awt", thisModule)); |
| assertFalse(desktop.isExported("java.wombat")); |
| assertFalse(desktop.isExported("java.wombat", thisModule)); |
| } |
| |
| |
| @Test(expectedExceptions = { NullPointerException.class }) |
| public void testIsExportedNull() { |
| Module thisModule = this.getClass().getModule(); |
| thisModule.isExported(null, thisModule); |
| } |
| |
| |
| @Test(expectedExceptions = { NullPointerException.class }) |
| public void testIsExportedToNull() { |
| Module thisModule = this.getClass().getModule(); |
| thisModule.isExported("", null); |
| } |
| |
| |
| } |