ModuleTestBase.java revision 3294:9adfb22ff08f
1/* 2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24import com.sun.tools.classfile.ClassFile; 25import com.sun.tools.classfile.ConstantPool; 26import com.sun.tools.classfile.ConstantPoolException; 27import com.sun.tools.classfile.Module_attribute; 28import com.sun.tools.javac.util.Pair; 29 30import java.io.IOException; 31import java.lang.annotation.Retention; 32import java.lang.annotation.RetentionPolicy; 33import java.lang.reflect.Method; 34import java.nio.file.Files; 35import java.nio.file.Path; 36import java.nio.file.Paths; 37import java.util.ArrayList; 38import java.util.Collections; 39import java.util.HashMap; 40import java.util.List; 41import java.util.Map; 42import java.util.regex.Pattern; 43import java.util.stream.Collectors; 44 45public class ModuleTestBase { 46 protected final ToolBox tb = new ToolBox(); 47 private final TestResult tr = new TestResult(); 48 49 50 protected void run() throws Exception { 51 boolean noTests = true; 52 for (Method method : this.getClass().getMethods()) { 53 if (method.isAnnotationPresent(Test.class)) { 54 noTests = false; 55 try { 56 tr.addTestCase(method.getName()); 57 method.invoke(this, Paths.get(method.getName())); 58 } catch (Throwable th) { 59 tr.addFailure(th); 60 } 61 } 62 } 63 if (noTests) throw new AssertionError("Tests are not found."); 64 tr.checkStatus(); 65 } 66 67 protected void testModuleAttribute(Path modulePath, ModuleDescriptor moduleDescriptor) throws Exception { 68 ClassFile classFile = ClassFile.read(modulePath.resolve("module-info.class")); 69 Module_attribute moduleAttribute = (Module_attribute) classFile.getAttribute("Module"); 70 ConstantPool constantPool = classFile.constant_pool; 71 72 testRequires(moduleDescriptor, moduleAttribute, constantPool); 73 testExports(moduleDescriptor, moduleAttribute, constantPool); 74 testProvides(moduleDescriptor, moduleAttribute, constantPool); 75 testUses(moduleDescriptor, moduleAttribute, constantPool); 76 } 77 78 private void testRequires(ModuleDescriptor moduleDescriptor, Module_attribute module, ConstantPool constantPool) throws ConstantPoolException { 79 tr.checkEquals(module.requires_count, moduleDescriptor.requires.size(), "Wrong amount of requires."); 80 81 List<Pair<String, Integer>> actualRequires = new ArrayList<>(); 82 for (Module_attribute.RequiresEntry require : module.requires) { 83 actualRequires.add(Pair.of( 84 require.getRequires(constantPool), require.requires_flags)); 85 } 86 tr.checkContains(actualRequires, moduleDescriptor.requires, "Lists of requires don't match"); 87 } 88 89 private void testExports(ModuleDescriptor moduleDescriptor, Module_attribute module, ConstantPool constantPool) throws ConstantPool.InvalidIndex, ConstantPool.UnexpectedEntry { 90 tr.checkEquals(module.exports_count, moduleDescriptor.exports.size(), "Wrong amount of exports."); 91 for (Module_attribute.ExportsEntry export : module.exports) { 92 String pkg = constantPool.getUTF8Value(export.exports_index); 93 if (tr.checkTrue(moduleDescriptor.exports.containsKey(pkg), "Unexpected export " + pkg)) { 94 List<String> expectedTo = moduleDescriptor.exports.get(pkg); 95 tr.checkEquals(export.exports_to_count, expectedTo.size(), "Wrong amount of exports to"); 96 List<String> actualTo = new ArrayList<>(); 97 for (int toIdx : export.exports_to_index) { 98 actualTo.add(constantPool.getUTF8Value(toIdx)); 99 } 100 tr.checkContains(actualTo, expectedTo, "Lists of \"exports to\" don't match."); 101 } 102 } 103 } 104 105 private void testUses(ModuleDescriptor moduleDescriptor, Module_attribute module, ConstantPool constantPool) throws ConstantPoolException { 106 tr.checkEquals(module.uses_count, moduleDescriptor.uses.size(), "Wrong amount of uses."); 107 List<String> actualUses = new ArrayList<>(); 108 for (int usesIdx : module.uses_index) { 109 String uses = constantPool.getClassInfo(usesIdx).getBaseName().replace('/', '.'); 110 actualUses.add(uses); 111 } 112 tr.checkContains(actualUses, moduleDescriptor.uses, "Lists of uses don't match"); 113 } 114 115 private void testProvides(ModuleDescriptor moduleDescriptor, Module_attribute module, ConstantPool constantPool) throws ConstantPoolException { 116 tr.checkEquals(module.provides_count, moduleDescriptor.provides.size(), "Wrong amount of provides."); 117 List<Pair<String, String>> actualProvides = new ArrayList<>(); 118 for (Module_attribute.ProvidesEntry provide : module.provides) { 119 String provides = constantPool.getClassInfo(provide.provides_index).getBaseName().replace('/', '.'); 120 String with = constantPool.getClassInfo(provide.with_index).getBaseName().replace('/', '.'); 121 actualProvides.add(Pair.of(provides, with)); 122 } 123 tr.checkContains(actualProvides, moduleDescriptor.provides, "Lists of provides don't match"); 124 } 125 126 protected void compile(Path base) throws IOException { 127 tb.new JavacTask() 128 .files(findJavaFiles(base)) 129 .run(ToolBox.Expect.SUCCESS) 130 .writeAll(); 131 } 132 133 private static Path[] findJavaFiles(Path src) throws IOException { 134 return Files.find(src, Integer.MAX_VALUE, (path, attr) -> path.toString().endsWith(".java")) 135 .toArray(Path[]::new); 136 } 137 138 @Retention(RetentionPolicy.RUNTIME) 139 @interface Test { 140 } 141 142 class ModuleDescriptor { 143 144 private final String name; 145 //pair is name of module and flag(public,mandated,synthetic) 146 private final List<Pair<String, Integer>> requires = new ArrayList<>(); 147 148 { 149 requires.add(new Pair<>("java.base", Module_attribute.ACC_MANDATED)); 150 } 151 152 private final Map<String, List<String>> exports = new HashMap<>(); 153 154 //List of service and implementation 155 private final List<Pair<String, String>> provides = new ArrayList<>(); 156 private final List<String> uses = new ArrayList<>(); 157 158 private static final String LINE_END = ";\n"; 159 160 StringBuilder content = new StringBuilder("module "); 161 162 public ModuleDescriptor(String moduleName) { 163 this.name = moduleName; 164 content.append(name).append('{').append('\n'); 165 } 166 167 public ModuleDescriptor requires(String... requires) { 168 for (String require : requires) { 169 this.requires.add(Pair.of(require, 0)); 170 content.append(" requires ").append(require).append(LINE_END); 171 } 172 return this; 173 } 174 175 public ModuleDescriptor requiresPublic(String... requiresPublic) { 176 for (String require : requiresPublic) { 177 this.requires.add(new Pair<>(require, Module_attribute.ACC_PUBLIC)); 178 content.append(" requires public ").append(require).append(LINE_END); 179 } 180 return this; 181 } 182 183 public ModuleDescriptor exports(String... exports) { 184 for (String export : exports) { 185 this.exports.putIfAbsent(export, new ArrayList<>()); 186 content.append(" exports ").append(export).append(LINE_END); 187 } 188 return this; 189 } 190 191 public ModuleDescriptor exportsTo(String exports, String to) { 192 List<String> tos = Pattern.compile(",") 193 .splitAsStream(to) 194 .map(String::trim) 195 .collect(Collectors.toList()); 196 this.exports.computeIfAbsent(exports, k -> new ArrayList<>()).addAll(tos); 197 content.append(" exports ").append(exports).append(" to ").append(to).append(LINE_END); 198 return this; 199 } 200 201 public ModuleDescriptor provides(String provides, String with) { 202 this.provides.add(Pair.of(provides, with)); 203 content.append(" provides ").append(provides).append(" with ").append(with).append(LINE_END); 204 return this; 205 } 206 207 public ModuleDescriptor uses(String... uses) { 208 Collections.addAll(this.uses, uses); 209 for (String use : uses) { 210 content.append(" uses ").append(use).append(LINE_END); 211 } 212 return this; 213 } 214 215 public ModuleDescriptor write(Path path) throws IOException { 216 String src = content.append('}').toString(); 217 218 tb.createDirectories(path); 219 tb.writeJavaFiles(path, src); 220 return this; 221 } 222 } 223} 224