Extract out a base RoundtripTest and IdenticalRoundtripTest class

This commit is contained in:
Ben Gruver 2015-03-17 20:41:20 -07:00 committed by Connor Tumbleson
parent 6d3497f72d
commit ce8a993bc7
3 changed files with 173 additions and 37 deletions

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/*
* 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 javax.annotation.Nonnull;
import java.io.File;
/**
* A base test class for performing a roundtrip assembly/disassembly where the input and output
* should be identical.
*
* By default, the input/output file should be a resource at [testDir]/[testName].smali
*/
public abstract class IdenticalRoundtripTest extends RoundtripTest {
public IdenticalRoundtripTest(@Nonnull String testDir) {
super(testDir);
}
public IdenticalRoundtripTest() {
}
@Nonnull @Override protected String getInputFilename(@Nonnull String testName) {
return String.format("%s%s%s.smali", testDir, File.separatorChar, testName);
}
@Nonnull @Override protected String getOutputFilename(@Nonnull String testName) {
return getInputFilename(testName);
}
}

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package org.jf.baksmali;
import com.google.common.io.ByteStreams;
import org.antlr.runtime.RecognitionException;
import org.junit.Assert;
import org.junit.Test;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
public class LambdaTest {
public class LambdaTest extends IdenticalRoundtripTest {
private baksmaliOptions createOptions() {
baksmaliOptions options = new baksmaliOptions();
options.apiLevel = 23; // since we need at least level 23 for lambda opcodes
options.experimental = true; // since these opcodes aren't implemented in runtime yet);
return options;
}
@Test
public void testHelloWorldLambda() throws IOException, RecognitionException {
runTest("HelloWorldLambda");
}
private void runTest(String fileName) throws IOException, RecognitionException {
// Load file from resources as a stream
String smaliFile = String.format("LambdaTest%s%s.smali", File.separatorChar, fileName);
InputStream smaliStream = LambdaTest.class.getClassLoader().
getResourceAsStream(smaliFile);
if (smaliStream == null) {
Assert.fail("Could not load " + smaliFile);
}
String source = readFully(smaliStream);
// Run smali, baksmali, and then compare strings are equal (minus comments/whitespace)
baksmaliOptions options = new baksmaliOptions();
options.apiLevel = 23; // since we need at least level 23 for lambda opcodes
options.experimental = true; // since these opcodes aren't implemented in runtime yet
BaksmaliTestUtils.assertSmaliCompiledEquals(source, source, options, true);
}
public static String readFully(InputStream inputStream) throws IOException {
return readFully(inputStream, "UTF-8");
}
public static String readFully(InputStream inputStream, String encoding)
throws IOException {
return new String(ByteStreams.toByteArray(inputStream), encoding);
runTest("HelloWorldLambda", createOptions());
}
}

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/*
* 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 org.antlr.runtime.RecognitionException;
import org.junit.Assert;
import javax.annotation.Nonnull;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
/**
* A base test class for performing a roundtrip assembly/disassembly
*
* The test accepts a smali file as input, performs a smali -> dex -> smali roundtrip, and
* verifies that the result equals a known-good output smali file.
*
* By default, the input and output files should be resources at [testDir]/[testName]Input.smali
* and [testDir]/[testName]Output.smali respectively
*/
public abstract class RoundtripTest {
protected final String testDir;
protected RoundtripTest(@Nonnull String testDir) {
this.testDir = testDir;
}
protected RoundtripTest() {
this.testDir = this.getClass().getSimpleName();
}
@Nonnull
protected String getInputFilename(@Nonnull String testName) {
return String.format("%s%s%sInput.smali", testDir, File.separatorChar, testName);
}
@Nonnull
protected String getOutputFilename(@Nonnull String testName) {
return String.format("%s%s%sOutput.smali", testDir, File.separatorChar, testName);
}
protected void runTest(@Nonnull String testName, @Nonnull baksmaliOptions options)
throws IOException, RecognitionException {
// Load file from resources as a stream
String inputFilename = getInputFilename(testName);
String input = readResourceFully(getInputFilename(testName));
String output;
if (getOutputFilename(testName).equals(inputFilename)) {
output = input;
} else {
output = readResourceFully(getOutputFilename(testName));
}
// Run smali, baksmali, and then compare strings are equal (minus comments/whitespace)
BaksmaliTestUtils.assertSmaliCompiledEquals(input, output, options, true);
}
@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 {
InputStream smaliStream = RoundtripTest.class.getClassLoader().
getResourceAsStream(fileName);
if (smaliStream == null) {
Assert.fail("Could not load " + fileName);
}
return new String(ByteStreams.toByteArray(smaliStream), encoding);
}
}