1 /* 2 * Copyright 2015, 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.baksmali; 33 34 import com.google.common.collect.Iterables; 35 import org.jf.dexlib2.dexbacked.DexBackedDexFile; 36 import org.jf.dexlib2.iface.ClassDef; 37 import org.junit.Assert; 38 39 import javax.annotation.Nonnull; 40 import java.io.File; 41 import java.io.IOException; 42 43 /** 44 * A base test class for performing a disassembly on a dex file and verifying the results 45 * 46 * The test accepts a single-class dex file as input, disassembles it, and verifies that 47 * the result equals a known-good output smali file. 48 * 49 * By default, the input and output files should be resources at [testDir]/[testName]Input.dex 50 * and [testDir]/[testName]Output.smali respectively 51 */ 52 public class DisassemblyTest extends DexTest { 53 54 @Nonnull getOutputFilename(@onnull String testName)55 protected String getOutputFilename(@Nonnull String testName) { 56 return String.format("%s%s%sOutput.smali", testDir, File.separatorChar, testName); 57 } 58 runTest(@onnull String testName)59 protected void runTest(@Nonnull String testName) { 60 runTest(testName, new BaksmaliOptions()); 61 } 62 runTest(@onnull String testName, @Nonnull BaksmaliOptions options)63 protected void runTest(@Nonnull String testName, @Nonnull BaksmaliOptions options) { 64 try { 65 DexBackedDexFile inputDex = getInputDexFile(testName, options); 66 Assert.assertEquals(1, inputDex.getClassCount()); 67 ClassDef inputClass = Iterables.getFirst(inputDex.getClasses(), null); 68 Assert.assertNotNull(inputClass); 69 String input = BaksmaliTestUtils.getNormalizedSmali(inputClass, options, true); 70 71 String output = BaksmaliTestUtils.readResourceFully(getOutputFilename(testName)); 72 output = BaksmaliTestUtils.normalizeSmali(output, true); 73 74 // Run smali, baksmali, and then compare strings are equal (minus comments/whitespace) 75 Assert.assertEquals(output, input); 76 } catch (IOException ex) { 77 Assert.fail(); 78 } 79 } 80 } 81