452 lines
17 KiB
Java
452 lines
17 KiB
Java
/*
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* Copyright (c) 2015, 2017, 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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import com.sun.tools.classfile.ClassFile;
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import com.sun.tools.classfile.ConstantPool;
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import com.sun.tools.classfile.ConstantPoolException;
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import com.sun.tools.classfile.Module_attribute;
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import java.io.IOException;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.lang.reflect.Method;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.HashMap;
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import java.util.LinkedHashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.Objects;
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import java.util.regex.Pattern;
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import java.util.stream.Collectors;
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import toolbox.JavacTask;
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import toolbox.Task;
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import toolbox.ToolBox;
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public class ModuleTestBase {
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protected final ToolBox tb = new ToolBox();
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private final TestResult tr = new TestResult();
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protected void run() throws Exception {
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boolean noTests = true;
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for (Method method : this.getClass().getMethods()) {
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if (method.isAnnotationPresent(Test.class)) {
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noTests = false;
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try {
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tr.addTestCase(method.getName());
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method.invoke(this, Paths.get(method.getName()));
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} catch (Throwable th) {
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tr.addFailure(th);
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}
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}
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}
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if (noTests) throw new AssertionError("Tests are not found.");
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tr.checkStatus();
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}
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protected void testModuleAttribute(Path modulePath, ModuleDescriptor moduleDescriptor) throws Exception {
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ClassFile classFile = ClassFile.read(modulePath.resolve("module-info.class"));
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Module_attribute moduleAttribute = (Module_attribute) classFile.getAttribute("Module");
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ConstantPool constantPool = classFile.constant_pool;
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testModuleName(moduleDescriptor, moduleAttribute, constantPool);
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testModuleFlags(moduleDescriptor, moduleAttribute);
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testRequires(moduleDescriptor, moduleAttribute, constantPool);
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testExports(moduleDescriptor, moduleAttribute, constantPool);
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testOpens(moduleDescriptor, moduleAttribute, constantPool);
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testProvides(moduleDescriptor, moduleAttribute, constantPool);
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testUses(moduleDescriptor, moduleAttribute, constantPool);
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}
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private void testModuleName(ModuleDescriptor moduleDescriptor, Module_attribute module, ConstantPool constantPool) throws ConstantPoolException {
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tr.checkEquals(constantPool.getModuleInfo(module.module_name).getName(), moduleDescriptor.name, "Unexpected module name");
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}
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private void testModuleFlags(ModuleDescriptor moduleDescriptor, Module_attribute module) {
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tr.checkEquals(module.module_flags, moduleDescriptor.flags, "Unexpected module flags");
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}
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private void testRequires(ModuleDescriptor moduleDescriptor, Module_attribute module, ConstantPool constantPool) throws ConstantPoolException {
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tr.checkEquals(module.requires_count, moduleDescriptor.requires.size(), "Wrong amount of requires.");
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List<Requires> actualRequires = new ArrayList<>();
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for (Module_attribute.RequiresEntry require : module.requires) {
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actualRequires.add(new Requires(
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require.getRequires(constantPool),
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require.requires_flags));
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}
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tr.checkContains(actualRequires, moduleDescriptor.requires, "Lists of requires don't match");
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}
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private void testExports(ModuleDescriptor moduleDescriptor, Module_attribute module, ConstantPool constantPool) throws ConstantPoolException {
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tr.checkEquals(module.exports_count, moduleDescriptor.exports.size(), "Wrong amount of exports.");
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for (Module_attribute.ExportsEntry export : module.exports) {
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String pkg = constantPool.getPackageInfo(export.exports_index).getName();
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if (tr.checkTrue(moduleDescriptor.exports.containsKey(pkg), "Unexpected export " + pkg)) {
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Export expectedExport = moduleDescriptor.exports.get(pkg);
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tr.checkEquals(expectedExport.mask, export.exports_flags, "Wrong export flags");
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List<String> expectedTo = expectedExport.to;
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tr.checkEquals(export.exports_to_count, expectedTo.size(), "Wrong amount of exports to");
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List<String> actualTo = new ArrayList<>();
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for (int toIdx : export.exports_to_index) {
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actualTo.add(constantPool.getModuleInfo(toIdx).getName());
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}
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tr.checkContains(actualTo, expectedTo, "Lists of \"exports to\" don't match.");
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}
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}
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}
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private void testOpens(ModuleDescriptor moduleDescriptor, Module_attribute module, ConstantPool constantPool) throws ConstantPoolException {
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tr.checkEquals(module.opens_count, moduleDescriptor.opens.size(), "Wrong amount of opens.");
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for (Module_attribute.OpensEntry open : module.opens) {
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String pkg = constantPool.getPackageInfo(open.opens_index).getName();
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if (tr.checkTrue(moduleDescriptor.opens.containsKey(pkg), "Unexpected open " + pkg)) {
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Open expectedOpen = moduleDescriptor.opens.get(pkg);
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tr.checkEquals(expectedOpen.mask, open.opens_flags, "Wrong open flags");
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List<String> expectedTo = expectedOpen.to;
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tr.checkEquals(open.opens_to_count, expectedTo.size(), "Wrong amount of opens to");
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List<String> actualTo = new ArrayList<>();
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for (int toIdx : open.opens_to_index) {
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actualTo.add(constantPool.getModuleInfo(toIdx).getName());
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}
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tr.checkContains(actualTo, expectedTo, "Lists of \"opens to\" don't match.");
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}
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}
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}
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private void testUses(ModuleDescriptor moduleDescriptor, Module_attribute module, ConstantPool constantPool) throws ConstantPoolException {
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tr.checkEquals(module.uses_count, moduleDescriptor.uses.size(), "Wrong amount of uses.");
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List<String> actualUses = new ArrayList<>();
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for (int usesIdx : module.uses_index) {
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String uses = constantPool.getClassInfo(usesIdx).getBaseName();
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actualUses.add(uses);
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}
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tr.checkContains(actualUses, moduleDescriptor.uses, "Lists of uses don't match");
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}
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private void testProvides(ModuleDescriptor moduleDescriptor, Module_attribute module, ConstantPool constantPool) throws ConstantPoolException {
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int moduleProvidesCount = Arrays.asList(module.provides).stream()
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.mapToInt(e -> e.with_index.length)
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.sum();
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int moduleDescriptorProvidesCount = moduleDescriptor.provides.values().stream()
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.mapToInt(impls -> impls.size())
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.sum();
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tr.checkEquals(moduleProvidesCount, moduleDescriptorProvidesCount, "Wrong amount of provides.");
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Map<String, List<String>> actualProvides = new HashMap<>();
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for (Module_attribute.ProvidesEntry provide : module.provides) {
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String provides = constantPool.getClassInfo(provide.provides_index).getBaseName();
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List<String> impls = new ArrayList<>();
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for (int i = 0; i < provide.with_count; i++) {
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String with = constantPool.getClassInfo(provide.with_index[i]).getBaseName();
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impls.add(with);
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}
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actualProvides.put(provides, impls);
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}
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tr.checkContains(actualProvides.entrySet(), moduleDescriptor.provides.entrySet(), "Lists of provides don't match");
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}
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protected void compile(Path base, String... options) throws IOException {
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new JavacTask(tb)
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.options(options)
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.files(findJavaFiles(base))
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.run(Task.Expect.SUCCESS)
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.writeAll();
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}
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private static Path[] findJavaFiles(Path src) throws IOException {
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return Files.find(src, Integer.MAX_VALUE, (path, attr) -> path.toString().endsWith(".java"))
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.toArray(Path[]::new);
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}
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@Retention(RetentionPolicy.RUNTIME)
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@interface Test {
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}
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interface Mask {
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int getMask();
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}
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public enum ModuleFlag implements Mask {
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OPEN("open", Module_attribute.ACC_OPEN);
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private final String token;
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private final int mask;
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ModuleFlag(String token, int mask) {
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this.token = token;
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this.mask = mask;
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}
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@Override
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public int getMask() {
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return mask;
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}
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}
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public enum RequiresFlag implements Mask {
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TRANSITIVE("transitive", Module_attribute.ACC_TRANSITIVE),
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STATIC("static", Module_attribute.ACC_STATIC_PHASE),
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MANDATED("", Module_attribute.ACC_MANDATED);
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private final String token;
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private final int mask;
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RequiresFlag(String token, int mask) {
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this.token = token;
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this.mask = mask;
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}
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@Override
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public int getMask() {
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return mask;
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}
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}
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public enum ExportsFlag implements Mask {
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SYNTHETIC("", Module_attribute.ACC_SYNTHETIC);
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private final String token;
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private final int mask;
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ExportsFlag(String token, int mask) {
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this.token = token;
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this.mask = mask;
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}
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@Override
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public int getMask() {
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return mask;
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}
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}
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public enum OpensFlag implements Mask {
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SYNTHETIC("", Module_attribute.ACC_SYNTHETIC);
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private final String token;
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private final int mask;
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OpensFlag(String token, int mask) {
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this.token = token;
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this.mask = mask;
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}
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@Override
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public int getMask() {
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return mask;
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}
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}
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private class Export {
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private final String pkg;
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private final int mask;
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private final List<String> to = new ArrayList<>();
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Export(String pkg, int mask) {
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this.pkg = pkg;
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this.mask = mask;
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}
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}
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private class Open {
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private final String pkg;
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private final int mask;
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private final List<String> to = new ArrayList<>();
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Open(String pkg, int mask) {
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this.pkg = pkg;
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this.mask = mask;
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}
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}
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private class Requires {
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private final String module;
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private final int mask;
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Requires(String module, int mask) {
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this.module = module;
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this.mask = mask;
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}
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@Override
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public boolean equals(Object o) {
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if (this == o) return true;
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if (o == null || getClass() != o.getClass()) return false;
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Requires requires = (Requires) o;
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return mask == requires.mask &&
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Objects.equals(module, requires.module);
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}
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@Override
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public int hashCode() {
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return Objects.hash(module, mask);
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}
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}
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protected class ModuleDescriptor {
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private final String name;
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private final int flags;
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private final List<Requires> requires = new ArrayList<>();
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{
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requires.add(new Requires("java.base", computeMask(RequiresFlag.MANDATED)));
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}
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private final Map<String, Export> exports = new HashMap<>();
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private final Map<String, Open> opens = new HashMap<>();
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//List of service and implementation
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private final Map<String, List<String>> provides = new LinkedHashMap<>();
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private final List<String> uses = new ArrayList<>();
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private static final String LINE_END = ";\n";
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StringBuilder content = new StringBuilder("");
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public ModuleDescriptor(String moduleName, ModuleFlag... flags) {
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this.name = moduleName;
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this.flags = computeMask(flags);
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for (ModuleFlag flag : flags) {
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content.append(flag.token).append(" ");
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}
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content.append("module ").append(moduleName).append('{').append('\n');
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}
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public ModuleDescriptor requires(String module) {
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this.requires.add(new Requires(module, 0));
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content.append(" requires ").append(module).append(LINE_END);
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return this;
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}
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public ModuleDescriptor requires(String module, RequiresFlag... flags) {
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this.requires.add(new Requires(module, computeMask(flags)));
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content.append(" requires ");
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for (RequiresFlag flag : flags) {
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content.append(flag.token).append(" ");
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}
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content.append(module).append(LINE_END);
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return this;
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}
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public ModuleDescriptor exports(String pkg, ExportsFlag... flags) {
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this.exports.put(toInternalForm(pkg), new Export(toInternalForm(pkg), computeMask(flags)));
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content.append(" exports ");
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for (ExportsFlag flag : flags) {
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content.append(flag.token).append(" ");
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}
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content.append(pkg).append(LINE_END);
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return this;
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}
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public ModuleDescriptor exportsTo(String pkg, String to, ExportsFlag... flags) {
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List<String> tos = Pattern.compile(",")
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.splitAsStream(to)
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.map(String::trim)
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.collect(Collectors.toList());
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this.exports.compute(toInternalForm(pkg), (k,v) -> new Export(k, computeMask(flags)))
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.to.addAll(tos);
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content.append(" exports ");
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for (ExportsFlag flag : flags) {
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content.append(flag.token).append(" ");
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}
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content.append(pkg).append(" to ").append(to).append(LINE_END);
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return this;
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}
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public ModuleDescriptor opens(String pkg, OpensFlag... flags) {
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this.opens.put(toInternalForm(pkg), new Open(toInternalForm(pkg), computeMask(flags)));
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content.append(" opens ");
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for (OpensFlag flag : flags) {
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content.append(flag.token).append(" ");
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}
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content.append(pkg).append(LINE_END);
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return this;
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}
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public ModuleDescriptor opensTo(String pkg, String to, OpensFlag... flags) {
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List<String> tos = Pattern.compile(",")
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.splitAsStream(to)
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.map(String::trim)
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.collect(Collectors.toList());
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this.opens.compute(toInternalForm(pkg), (k,v) -> new Open(toInternalForm(k), computeMask(flags)))
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.to.addAll(tos);
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content.append(" opens ");
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for (OpensFlag flag : flags) {
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content.append(flag.token).append(" ");
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}
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content.append(pkg).append(" to ").append(to).append(LINE_END);
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return this;
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}
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public ModuleDescriptor provides(String provides, String... with) {
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List<String> impls = Arrays.stream(with)
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.map(this::toInternalForm)
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.collect(Collectors.toList());
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this.provides.put(toInternalForm(provides), impls);
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content.append(" provides ")
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.append(provides)
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.append(" with ")
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.append(String.join(",", with))
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.append(LINE_END);
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return this;
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}
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public ModuleDescriptor uses(String... uses) {
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for (String use : uses) {
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this.uses.add(toInternalForm(use));
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content.append(" uses ").append(use).append(LINE_END);
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}
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return this;
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}
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public ModuleDescriptor write(Path path) throws IOException {
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String src = content.append('}').toString();
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tb.createDirectories(path);
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tb.writeJavaFiles(path, src);
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return this;
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}
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private String toInternalForm(String name) {
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return name.replace('.', '/');
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}
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private int computeMask(Mask... masks) {
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return Arrays.stream(masks)
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.map(Mask::getMask)
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.reduce((a, b) -> a | b)
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.orElseGet(() -> 0);
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}
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}
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}
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