| /* |
| * Copyright 2015, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| package org.jf.baksmali; |
| |
| import com.google.common.io.ByteStreams; |
| import junit.framework.Assert; |
| import org.antlr.runtime.RecognitionException; |
| import org.jf.baksmali.Adaptors.ClassDefinition; |
| import org.jf.dexlib2.iface.ClassDef; |
| import org.jf.smali.SmaliTestUtils; |
| import org.jf.util.IndentingWriter; |
| import org.junit.Test; |
| |
| import javax.annotation.Nonnull; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.StringWriter; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| public class BaksmaliTestUtils { |
| |
| private static String newline = System.getProperty("line.separator"); |
| |
| public static void assertSmaliCompiledEquals(String source, String expected, |
| BaksmaliOptions options, boolean stripComments) throws IOException, |
| RecognitionException { |
| ClassDef classDef = SmaliTestUtils.compileSmali(source, options.apiLevel); |
| |
| // Remove unnecessary whitespace and optionally strip all comments from smali file |
| String normalizedActual = getNormalizedSmali(classDef, options, stripComments); |
| String normalizedExpected = normalizeSmali(expected, stripComments); |
| |
| // Assert that normalized strings are now equal |
| Assert.assertEquals(normalizedExpected, normalizedActual); |
| } |
| |
| public static void assertSmaliCompiledEquals(String source, String expected, |
| BaksmaliOptions options) throws IOException, RecognitionException { |
| assertSmaliCompiledEquals(source, expected, options, false); |
| } |
| |
| public static void assertSmaliCompiledEquals(String source, String expected) |
| throws IOException, RecognitionException { |
| BaksmaliOptions options = new BaksmaliOptions(); |
| assertSmaliCompiledEquals(source, expected, options); |
| } |
| |
| @Nonnull |
| public static String normalizeSmali(@Nonnull String smaliText, boolean stripComments) { |
| if (stripComments) { |
| smaliText = stripComments(smaliText); |
| } |
| return normalizeWhitespace(smaliText); |
| } |
| |
| @Nonnull |
| public static String getNormalizedSmali(@Nonnull ClassDef classDef, @Nonnull BaksmaliOptions options, |
| boolean stripComments) |
| throws IOException { |
| StringWriter stringWriter = new StringWriter(); |
| IndentingWriter writer = new IndentingWriter(stringWriter); |
| ClassDefinition classDefinition = new ClassDefinition(options, classDef); |
| classDefinition.writeTo(writer); |
| writer.close(); |
| return normalizeSmali(stringWriter.toString(), stripComments); |
| } |
| |
| @Nonnull |
| public static byte[] readResourceBytesFully(@Nonnull String fileName) throws IOException { |
| InputStream smaliStream = RoundtripTest.class.getClassLoader(). |
| getResourceAsStream(fileName); |
| if (smaliStream == null) { |
| org.junit.Assert.fail("Could not load " + fileName); |
| } |
| |
| return ByteStreams.toByteArray(smaliStream); |
| } |
| |
| @Nonnull |
| public static String readResourceFully(@Nonnull String fileName) throws IOException { |
| return readResourceFully(fileName, "UTF-8"); |
| } |
| |
| @Nonnull |
| public static String readResourceFully(@Nonnull String fileName, @Nonnull String encoding) |
| throws IOException { |
| return new String(readResourceBytesFully(fileName), encoding); |
| } |
| |
| @Nonnull |
| public static String normalizeNewlines(@Nonnull String source) { |
| return normalizeNewlines(source, newline); |
| } |
| |
| @Nonnull |
| public static String normalizeNewlines(@Nonnull String source, String newlineValue) { |
| return source.replace("\r", "").replace("\n", newlineValue); |
| } |
| |
| @Nonnull |
| public static String normalizeWhitespace(@Nonnull String source) { |
| // Go to native system new lines so that ^/$ work correctly |
| source = normalizeNewlines(source); |
| |
| // Remove all suffix/prefix whitespace |
| Pattern pattern = Pattern.compile("((^[ \t]+)|([ \t]+$))", Pattern.MULTILINE); |
| Matcher matcher = pattern.matcher(source); |
| source = matcher.replaceAll(""); |
| |
| // Remove all empty lines |
| Pattern pattern2 = Pattern.compile("^\r?\n?", Pattern.MULTILINE); |
| Matcher matcher2 = pattern2.matcher(source); |
| source = matcher2.replaceAll(""); |
| |
| // Remove a trailing new line, if present |
| Pattern pattern3 = Pattern.compile("\r?\n?$"); |
| Matcher matcher3 = pattern3.matcher(source); |
| source = matcher3.replaceAll(""); |
| |
| // Go back to unix-style \n newlines |
| source = normalizeNewlines(source, "\n"); |
| return source; |
| } |
| |
| @Nonnull |
| public static String stripComments(@Nonnull String source) { |
| Pattern pattern = Pattern.compile("#(.*)"); |
| Matcher matcher = pattern.matcher(source); |
| return matcher.replaceAll(""); |
| } |
| |
| @Test |
| public void testStripComments() { |
| Assert.assertEquals("", stripComments("#world")); |
| Assert.assertEquals("hello", stripComments("hello#world")); |
| Assert.assertEquals("multi\nline", stripComments("multi#hello world\nline#world")); |
| } |
| |
| @Test |
| public void testNormalizeWhitespace() { |
| Assert.assertEquals("", normalizeWhitespace(" ")); |
| Assert.assertEquals("hello", normalizeWhitespace("hello ")); |
| Assert.assertEquals("hello", normalizeWhitespace(" hello")); |
| Assert.assertEquals("hello", normalizeWhitespace(" hello ")); |
| Assert.assertEquals("hello\nworld", normalizeWhitespace("hello \n \n world")); |
| } |
| } |