| /* |
| * Copyright (c) 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 |
| * @library /lib/testlibrary |
| * @build LayerControllerTest ModuleUtils |
| * @run testng LayerControllerTest |
| * @summary Basic tests for java.lang.ModuleLayer.Controller |
| */ |
| |
| import java.lang.module.Configuration; |
| import java.lang.module.ModuleDescriptor; |
| import java.lang.module.ModuleFinder; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.testng.annotations.Test; |
| import static org.testng.Assert.*; |
| |
| @Test |
| public class LayerControllerTest { |
| |
| /** |
| * Creates a Controller for a module layer containing modules m1 and m2. |
| * Module m1 contains p1, reads java.base, does not export/open any package |
| * Module m2 contains p2, reads java.base, does not export/open any package |
| */ |
| private ModuleLayer.Controller createTestLayer() { |
| ModuleDescriptor descriptor1 |
| = ModuleDescriptor.newModule("m1") |
| .packages(Set.of("p1")) |
| .requires("java.base") |
| .build(); |
| |
| ModuleDescriptor descriptor2 |
| = ModuleDescriptor.newModule("m2") |
| .requires("java.base") |
| .packages(Set.of("p2")) |
| .build(); |
| |
| ModuleDescriptor descriptor3 |
| = ModuleDescriptor.newModule("m3") |
| .requires("java.base") |
| .packages(Set.of("p3")) |
| .build(); |
| |
| ModuleFinder finder = ModuleUtils.finderOf(descriptor1, descriptor2, descriptor3); |
| ModuleLayer bootLayer = ModuleLayer.boot(); |
| |
| Configuration cf = bootLayer.configuration() |
| .resolve(finder, ModuleFinder.of(), Set.of("m1", "m2", "m3")); |
| |
| ClassLoader scl = ClassLoader.getSystemClassLoader(); |
| |
| ModuleLayer.Controller controller |
| = ModuleLayer.defineModulesWithOneLoader(cf, List.of(bootLayer), scl); |
| |
| ModuleLayer layer = controller.layer(); |
| |
| assertTrue(layer.modules().size() == 3); |
| assertTrue(layer.findModule("m1").isPresent()); |
| assertTrue(layer.findModule("m2").isPresent()); |
| assertTrue(layer.findModule("m3").isPresent()); |
| |
| return controller; |
| } |
| |
| /** |
| * Basic test of Controller to update modules m1 and m2 to read and |
| * open packages to each other. |
| */ |
| public void testBasic() { |
| ModuleLayer.Controller controller = createTestLayer(); |
| ModuleLayer layer = controller.layer(); |
| Module m1 = layer.findModule("m1").orElseThrow(RuntimeException::new); |
| Module m2 = layer.findModule("m2").orElseThrow(RuntimeException::new); |
| Module m3 = layer.findModule("m3").orElseThrow(RuntimeException::new); |
| |
| assertFalse(m1.canRead(m2)); |
| assertFalse(m1.canRead(m3)); |
| assertFalse(m1.isExported("p1")); |
| assertFalse(m1.isOpen("p1")); |
| assertFalse(m1.isExported("p1", m2)); |
| assertFalse(m1.isExported("p1", m3)); |
| assertFalse(m1.isOpen("p1", m2)); |
| assertFalse(m1.isOpen("p1", m3)); |
| |
| assertFalse(m2.canRead(m1)); |
| assertFalse(m2.canRead(m3)); |
| assertFalse(m2.isExported("p2")); |
| assertFalse(m2.isOpen("p2")); |
| assertFalse(m2.isExported("p2", m1)); |
| assertFalse(m2.isExported("p2", m3)); |
| assertFalse(m2.isOpen("p2", m1)); |
| assertFalse(m2.isOpen("p2", m3)); |
| |
| assertFalse(m3.canRead(m1)); |
| assertFalse(m3.canRead(m2)); |
| assertFalse(m3.isExported("p3")); |
| assertFalse(m3.isOpen("p3")); |
| assertFalse(m3.isExported("p3", m1)); |
| assertFalse(m3.isExported("p3", m2)); |
| assertFalse(m3.isOpen("p3", m1)); |
| assertFalse(m3.isOpen("p3", m2)); |
| |
| // update m1 to read m2 |
| assertTrue(controller.addReads(m1, m2) == controller); |
| assertTrue(m1.canRead(m2)); |
| assertFalse(m2.canRead(m1)); |
| |
| // update m2 to read m1 |
| assertTrue(controller.addReads(m2, m1) == controller); |
| assertTrue(m1.canRead(m2)); |
| assertTrue(m1.canRead(m1)); |
| |
| // update m1 to export p1 to m2 |
| assertTrue(controller.addExports(m1, "p1", m2) == controller); |
| assertTrue(m1.isExported("p1", m2)); |
| assertFalse(m1.isOpen("p1", m2)); |
| assertFalse(m1.isExported("p1")); |
| assertFalse(m1.isOpen("p1")); |
| |
| // update m3 to open p3 to m1 |
| assertTrue(controller.addExports(m3, "p3", m1) == controller); |
| assertTrue(m3.isExported("p3", m1)); |
| assertFalse(m3.isOpen("p3", m1)); |
| assertFalse(m3.isExported("p3")); |
| assertFalse(m3.isOpen("p3")); |
| |
| // update m1 to open p1 to m3 |
| assertTrue(controller.addOpens(m1, "p1", m3) == controller); |
| assertTrue(m1.isExported("p1", m3)); |
| assertTrue(m1.isOpen("p1", m3)); |
| assertFalse(m1.isExported("p1")); |
| assertFalse(m1.isOpen("p1")); |
| |
| // update m3 to open p3 to m1 |
| assertTrue(controller.addOpens(m3, "p3", m1) == controller); |
| assertTrue(m3.isExported("p3", m1)); |
| assertTrue(m3.isOpen("p3", m1)); |
| assertFalse(m3.isExported("p3")); |
| assertFalse(m3.isOpen("p3")); |
| } |
| |
| /** |
| * Test invalid argument handling |
| */ |
| public void testBadArguments() { |
| ModuleLayer.Controller controller = createTestLayer(); |
| ModuleLayer layer = controller.layer(); |
| Module m1 = layer.findModule("m1").orElseThrow(RuntimeException::new); |
| Module m2 = layer.findModule("m2").orElseThrow(RuntimeException::new); |
| Module base = Object.class.getModule(); |
| |
| // java.base is not in layer |
| try { |
| controller.addReads(base, m2); |
| assertTrue(false); |
| } catch (IllegalArgumentException expected) { } |
| |
| // java.base is not in layer |
| try { |
| controller.addExports(base, "java.lang", m2); |
| assertTrue(false); |
| } catch (IllegalArgumentException expected) { } |
| |
| // m1 does not contain java.lang |
| try { |
| controller.addExports(m1, "java.lang", m2); |
| assertTrue(false); |
| } catch (IllegalArgumentException expected) { } |
| |
| // java.base is not in layer |
| try { |
| controller.addOpens(base, "java.lang", m2); |
| assertTrue(false); |
| } catch (IllegalArgumentException expected) { } |
| |
| // m1 does not contain java.lang |
| try { |
| controller.addOpens(m1, "java.lang", m2); |
| assertTrue(false); |
| } catch (IllegalArgumentException expected) { } |
| } |
| |
| /** |
| * Test null handling |
| */ |
| public void testNulls() { |
| ModuleLayer.Controller controller = createTestLayer(); |
| ModuleLayer layer = controller.layer(); |
| Module m1 = layer.findModule("m1").orElseThrow(RuntimeException::new); |
| Module m2 = layer.findModule("m2").orElseThrow(RuntimeException::new); |
| assertTrue(m1 != null); |
| assertTrue(m2 != null); |
| |
| try { |
| controller.addReads(null, m2); |
| assertTrue(false); |
| } catch (NullPointerException expected) { } |
| |
| try { |
| controller.addReads(m1, null); |
| assertTrue(false); |
| } catch (NullPointerException expected) { } |
| |
| try { |
| controller.addExports(null, "p1", m2); |
| assertTrue(false); |
| } catch (NullPointerException expected) { } |
| |
| try { |
| controller.addExports(m1, null, m2); |
| assertTrue(false); |
| } catch (NullPointerException expected) { } |
| |
| try { |
| controller.addExports(m1, "p1", null); |
| assertTrue(false); |
| } catch (NullPointerException expected) { } |
| |
| try { |
| controller.addOpens(null, "p1", m2); |
| assertTrue(false); |
| } catch (NullPointerException expected) { } |
| |
| try { |
| controller.addOpens(m1, null, m2); |
| assertTrue(false); |
| } catch (NullPointerException expected) { } |
| |
| try { |
| controller.addOpens(m1, "p1", null); |
| assertTrue(false); |
| } catch (NullPointerException expected) { } |
| } |
| } |