1 /* 2 * Copyright 2012, Google Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * * Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following disclaimer 13 * in the documentation and/or other materials provided with the 14 * distribution. 15 * * Neither the name of Google Inc. nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 package org.jf.dexlib2; 33 34 import com.google.common.collect.ImmutableMap; 35 import junit.framework.Assert; 36 import org.jf.dexlib2.iface.ClassDef; 37 import org.jf.dexlib2.iface.DexFile; 38 import org.jf.dexlib2.iface.Method; 39 import org.jf.dexlib2.iface.MethodImplementation; 40 import org.jf.dexlib2.iface.instruction.Instruction; 41 import org.jf.dexlib2.iface.instruction.ReferenceInstruction; 42 import org.jf.dexlib2.iface.reference.FieldReference; 43 import org.jf.dexlib2.iface.reference.MethodReference; 44 import org.jf.dexlib2.util.SyntheticAccessorResolver; 45 import org.junit.Test; 46 47 import java.io.IOException; 48 import java.net.URL; 49 import java.util.Map; 50 import java.util.regex.Matcher; 51 import java.util.regex.Pattern; 52 53 public class AccessorTest { 54 private Pattern accessorMethodPattern = Pattern.compile("([a-zA-Z]*)_([a-zA-Z]*)"); 55 56 private static final Map<String, Integer> operationTypes; 57 58 static { 59 ImmutableMap.Builder<String, Integer> builder = ImmutableMap.builder(); 60 builder.put("postinc", SyntheticAccessorResolver.POSTFIX_INCREMENT); 61 builder.put("preinc", SyntheticAccessorResolver.PREFIX_INCREMENT); 62 builder.put("postdec", SyntheticAccessorResolver.POSTFIX_DECREMENT); 63 builder.put("predec", SyntheticAccessorResolver.PREFIX_DECREMENT); 64 builder.put("add", SyntheticAccessorResolver.ADD_ASSIGNMENT); 65 builder.put("sub", SyntheticAccessorResolver.SUB_ASSIGNMENT); 66 builder.put("mul", SyntheticAccessorResolver.MUL_ASSIGNMENT); 67 builder.put("div", SyntheticAccessorResolver.DIV_ASSIGNMENT); 68 builder.put("rem", SyntheticAccessorResolver.REM_ASSIGNMENT); 69 builder.put("and", SyntheticAccessorResolver.AND_ASSIGNMENT); 70 builder.put("or", SyntheticAccessorResolver.OR_ASSIGNMENT); 71 builder.put("xor", SyntheticAccessorResolver.XOR_ASSIGNMENT); 72 builder.put("shl", SyntheticAccessorResolver.SHL_ASSIGNMENT); 73 builder.put("shr", SyntheticAccessorResolver.SHR_ASSIGNMENT); 74 builder.put("ushr", SyntheticAccessorResolver.USHR_ASSIGNMENT); 75 operationTypes = builder.build(); 76 } 77 78 @Test 79 public void testAccessors() throws IOException { 80 URL url = AccessorTest.class.getClassLoader().getResource("accessorTest.dex"); 81 Assert.assertNotNull(url); 82 DexFile f = DexFileFactory.loadDexFile(url.getFile(), 15, false); 83 84 SyntheticAccessorResolver sar = new SyntheticAccessorResolver(f.getOpcodes(), f.getClasses()); 85 86 ClassDef accessorTypesClass = null; 87 ClassDef accessorsClass = null; 88 89 for (ClassDef classDef: f.getClasses()) { 90 String className = classDef.getType(); 91 92 if (className.equals("Lorg/jf/dexlib2/AccessorTypes;")) { 93 accessorTypesClass = classDef; 94 } else if (className.equals("Lorg/jf/dexlib2/AccessorTypes$Accessors;")) { 95 accessorsClass = classDef; 96 } 97 } 98 99 Assert.assertNotNull(accessorTypesClass); 100 Assert.assertNotNull(accessorsClass); 101 102 for (Method method: accessorsClass.getMethods()) { 103 Matcher m = accessorMethodPattern.matcher(method.getName()); 104 if (!m.matches()) { 105 continue; 106 } 107 String type = m.group(1); 108 String operation = m.group(2); 109 110 MethodImplementation methodImpl = method.getImplementation(); 111 Assert.assertNotNull(methodImpl); 112 113 for (Instruction instruction: methodImpl.getInstructions()) { 114 Opcode opcode = instruction.getOpcode(); 115 if (opcode == Opcode.INVOKE_STATIC || opcode == Opcode.INVOKE_STATIC_RANGE) { 116 MethodReference accessorMethod = 117 (MethodReference)((ReferenceInstruction) instruction).getReference(); 118 119 SyntheticAccessorResolver.AccessedMember accessedMember = sar.getAccessedMember(accessorMethod); 120 121 Assert.assertNotNull(String.format("Could not resolve accessor for %s_%s", type, operation), 122 accessedMember); 123 124 int operationType = operationTypes.get(operation); 125 Assert.assertEquals(operationType, accessedMember.accessedMemberType); 126 127 Assert.assertEquals(String.format("%s_val", type), 128 ((FieldReference)accessedMember.accessedMember).getName()); 129 } 130 } 131 } 132 } 133 } 134