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fernflower/test/org/jetbrains/java/decompiler/BulkDecompilationTest.java

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/*
* Copyright 2000-2014 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.java.decompiler;
import org.hamcrest.Matchers;
import org.jetbrains.java.decompiler.main.decompiler.ConsoleDecompiler;
import org.jetbrains.java.decompiler.util.InterpreterUtil;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import java.io.*;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
public class BulkDecompilationTest {
private DecompilerTestFixture fixture;
@Before
public void setUp() throws IOException {
fixture = new DecompilerTestFixture();
fixture.setUp();
}
@After
public void tearDown() {
fixture.tearDown();
fixture = null;
}
@Test
public void testDirectory() {
File classes = new File(fixture.getTempDir(), "classes");
unpack(new File(fixture.getTestDataDir(), "bulk.jar"), classes);
ConsoleDecompiler decompiler = fixture.getDecompiler();
decompiler.addSpace(classes, true);
decompiler.decompileContext();
compareDirectories(new File(fixture.getTestDataDir(), "bulk"), fixture.getTargetDir());
}
@Test
public void testJar() {
ConsoleDecompiler decompiler = fixture.getDecompiler();
decompiler.addSpace(new File(fixture.getTestDataDir(), "bulk.jar"), true);
decompiler.decompileContext();
File unpacked = new File(fixture.getTempDir(), "unpacked");
unpack(new File(fixture.getTargetDir(), "bulk.jar"), unpacked);
compareDirectories(new File(fixture.getTestDataDir(), "bulk"), unpacked);
}
private static void unpack(File archive, File targetDir) {
try {
ZipFile zip = new ZipFile(archive);
try {
Enumeration<? extends ZipEntry> entries = zip.entries();
while (entries.hasMoreElements()) {
ZipEntry entry = entries.nextElement();
if (!entry.isDirectory()) {
File file = new File(targetDir, entry.getName());
assertTrue(file.getParentFile().mkdirs() || file.getParentFile().isDirectory());
InputStream in = zip.getInputStream(entry);
OutputStream out = new FileOutputStream(file);
InterpreterUtil.copyStream(in, out);
out.close();
in.close();
}
}
}
finally {
zip.close();
}
}
catch (IOException e) {
throw new RuntimeException(e);
}
}
private static void compareDirectories(File expected, File actual) {
String[] expectedList = expected.list();
String[] actualList = actual.list();
assertThat(actualList, Matchers.arrayContainingInAnyOrder(expectedList));
for (String name : expectedList) {
File child = new File(expected, name);
if (child.isDirectory()) {
compareDirectories(child, new File(actual, name));
}
}
}
}