262 lines
8.9 KiB
Java
262 lines
8.9 KiB
Java
/*
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* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @library /test/lib
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* @build LayerControllerTest
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* jdk.test.lib.util.ModuleUtils
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* @run testng LayerControllerTest
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* @summary Basic tests for java.lang.ModuleLayer.Controller
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*/
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import java.lang.module.Configuration;
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import java.lang.module.ModuleDescriptor;
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import java.lang.module.ModuleFinder;
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import java.util.List;
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import java.util.Set;
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import jdk.test.lib.util.ModuleUtils;
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import org.testng.annotations.Test;
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import static org.testng.Assert.*;
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@Test
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public class LayerControllerTest {
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/**
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* Creates a Controller for a module layer containing modules m1 and m2.
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* Module m1 contains p1, reads java.base, does not export/open any package
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* Module m2 contains p2, reads java.base, does not export/open any package
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*/
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private ModuleLayer.Controller createTestLayer() {
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ModuleDescriptor descriptor1
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= ModuleDescriptor.newModule("m1")
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.packages(Set.of("p1"))
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.requires("java.base")
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.build();
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ModuleDescriptor descriptor2
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= ModuleDescriptor.newModule("m2")
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.requires("java.base")
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.packages(Set.of("p2"))
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.build();
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ModuleDescriptor descriptor3
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= ModuleDescriptor.newModule("m3")
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.requires("java.base")
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.packages(Set.of("p3"))
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.build();
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ModuleFinder finder = ModuleUtils.finderOf(descriptor1, descriptor2, descriptor3);
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ModuleLayer bootLayer = ModuleLayer.boot();
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Configuration cf = bootLayer.configuration()
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.resolve(finder, ModuleFinder.of(), Set.of("m1", "m2", "m3"));
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ClassLoader scl = ClassLoader.getSystemClassLoader();
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ModuleLayer.Controller controller
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= ModuleLayer.defineModulesWithOneLoader(cf, List.of(bootLayer), scl);
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ModuleLayer layer = controller.layer();
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assertTrue(layer.modules().size() == 3);
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assertTrue(layer.findModule("m1").isPresent());
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assertTrue(layer.findModule("m2").isPresent());
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assertTrue(layer.findModule("m3").isPresent());
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return controller;
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}
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/**
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* Basic test of Controller to update modules m1 and m2 to read and
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* open packages to each other.
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*/
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public void testBasic() {
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ModuleLayer.Controller controller = createTestLayer();
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ModuleLayer layer = controller.layer();
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Module m1 = layer.findModule("m1").orElseThrow(RuntimeException::new);
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Module m2 = layer.findModule("m2").orElseThrow(RuntimeException::new);
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Module m3 = layer.findModule("m3").orElseThrow(RuntimeException::new);
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assertFalse(m1.canRead(m2));
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assertFalse(m1.canRead(m3));
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assertFalse(m1.isExported("p1"));
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assertFalse(m1.isOpen("p1"));
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assertFalse(m1.isExported("p1", m2));
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assertFalse(m1.isExported("p1", m3));
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assertFalse(m1.isOpen("p1", m2));
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assertFalse(m1.isOpen("p1", m3));
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assertFalse(m2.canRead(m1));
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assertFalse(m2.canRead(m3));
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assertFalse(m2.isExported("p2"));
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assertFalse(m2.isOpen("p2"));
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assertFalse(m2.isExported("p2", m1));
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assertFalse(m2.isExported("p2", m3));
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assertFalse(m2.isOpen("p2", m1));
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assertFalse(m2.isOpen("p2", m3));
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assertFalse(m3.canRead(m1));
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assertFalse(m3.canRead(m2));
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assertFalse(m3.isExported("p3"));
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assertFalse(m3.isOpen("p3"));
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assertFalse(m3.isExported("p3", m1));
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assertFalse(m3.isExported("p3", m2));
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assertFalse(m3.isOpen("p3", m1));
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assertFalse(m3.isOpen("p3", m2));
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// update m1 to read m2
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assertTrue(controller.addReads(m1, m2) == controller);
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assertTrue(m1.canRead(m2));
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assertFalse(m2.canRead(m1));
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// update m2 to read m1
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assertTrue(controller.addReads(m2, m1) == controller);
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assertTrue(m1.canRead(m2));
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assertTrue(m1.canRead(m1));
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// update m1 to export p1 to m2
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assertTrue(controller.addExports(m1, "p1", m2) == controller);
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assertTrue(m1.isExported("p1", m2));
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assertFalse(m1.isOpen("p1", m2));
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assertFalse(m1.isExported("p1"));
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assertFalse(m1.isOpen("p1"));
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// update m3 to open p3 to m1
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assertTrue(controller.addExports(m3, "p3", m1) == controller);
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assertTrue(m3.isExported("p3", m1));
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assertFalse(m3.isOpen("p3", m1));
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assertFalse(m3.isExported("p3"));
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assertFalse(m3.isOpen("p3"));
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// update m1 to open p1 to m3
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assertTrue(controller.addOpens(m1, "p1", m3) == controller);
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assertTrue(m1.isExported("p1", m3));
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assertTrue(m1.isOpen("p1", m3));
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assertFalse(m1.isExported("p1"));
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assertFalse(m1.isOpen("p1"));
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// update m3 to open p3 to m1
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assertTrue(controller.addOpens(m3, "p3", m1) == controller);
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assertTrue(m3.isExported("p3", m1));
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assertTrue(m3.isOpen("p3", m1));
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assertFalse(m3.isExported("p3"));
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assertFalse(m3.isOpen("p3"));
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}
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/**
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* Test invalid argument handling
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*/
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public void testBadArguments() {
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ModuleLayer.Controller controller = createTestLayer();
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ModuleLayer layer = controller.layer();
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Module m1 = layer.findModule("m1").orElseThrow(RuntimeException::new);
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Module m2 = layer.findModule("m2").orElseThrow(RuntimeException::new);
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Module base = Object.class.getModule();
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// java.base is not in layer
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try {
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controller.addReads(base, m2);
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assertTrue(false);
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} catch (IllegalArgumentException expected) { }
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// java.base is not in layer
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try {
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controller.addExports(base, "java.lang", m2);
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assertTrue(false);
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} catch (IllegalArgumentException expected) { }
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// m1 does not contain java.lang
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try {
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controller.addExports(m1, "java.lang", m2);
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assertTrue(false);
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} catch (IllegalArgumentException expected) { }
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// java.base is not in layer
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try {
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controller.addOpens(base, "java.lang", m2);
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assertTrue(false);
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} catch (IllegalArgumentException expected) { }
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// m1 does not contain java.lang
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try {
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controller.addOpens(m1, "java.lang", m2);
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assertTrue(false);
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} catch (IllegalArgumentException expected) { }
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}
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/**
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* Test null handling
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*/
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public void testNulls() {
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ModuleLayer.Controller controller = createTestLayer();
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ModuleLayer layer = controller.layer();
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Module m1 = layer.findModule("m1").orElseThrow(RuntimeException::new);
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Module m2 = layer.findModule("m2").orElseThrow(RuntimeException::new);
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assertTrue(m1 != null);
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assertTrue(m2 != null);
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try {
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controller.addReads(null, m2);
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assertTrue(false);
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} catch (NullPointerException expected) { }
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try {
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controller.addReads(m1, null);
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assertTrue(false);
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} catch (NullPointerException expected) { }
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try {
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controller.addExports(null, "p1", m2);
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assertTrue(false);
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} catch (NullPointerException expected) { }
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try {
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controller.addExports(m1, null, m2);
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assertTrue(false);
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} catch (NullPointerException expected) { }
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try {
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controller.addExports(m1, "p1", null);
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assertTrue(false);
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} catch (NullPointerException expected) { }
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try {
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controller.addOpens(null, "p1", m2);
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assertTrue(false);
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} catch (NullPointerException expected) { }
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try {
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controller.addOpens(m1, null, m2);
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assertTrue(false);
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} catch (NullPointerException expected) { }
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try {
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controller.addOpens(m1, "p1", null);
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assertTrue(false);
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} catch (NullPointerException expected) { }
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}
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}
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