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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.jetbrains.java.decompiler.main.decompiler.ConsoleDecompiler;
import org.jetbrains.java.decompiler.main.extern.IFernflowerPreferences;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import java.io.*;
import java.util.HashMap;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
public class SingleClassesTest {
private File testDataDir;
private File tempDir;
private ConsoleDecompiler decompiler;
@Before
public void setUp() throws IOException {
testDataDir = new File("testData");
if (!isTestDataDir(testDataDir)) testDataDir = new File("community/plugins/java-decompiler/engine/testData");
if (!isTestDataDir(testDataDir)) testDataDir = new File("plugins/java-decompiler/engine/testData");
assertTrue(isTestDataDir(testDataDir));
//noinspection SSBasedInspection
tempDir = File.createTempFile("decompiler_test_", "_dir");
assertTrue(tempDir.delete());
assertTrue(tempDir.mkdirs());
decompiler = new ConsoleDecompiler(new HashMap<String, Object>() {{
put(IFernflowerPreferences.LOG_LEVEL, "warn");
put(IFernflowerPreferences.DECOMPILE_GENERIC_SIGNATURES, "1");
put(IFernflowerPreferences.REMOVE_SYNTHETIC, "1");
put(IFernflowerPreferences.REMOVE_BRIDGE, "1");
put(IFernflowerPreferences.LITERALS_AS_IS, "1");
}});
}
@After
public void tearDown() {
decompiler = null;
delete(tempDir);
tempDir = null;
testDataDir = null;
}
@Test public void testClassFields() { doTest("TestClassFields"); }
@Test public void testClassLambda() { doTest("TestClassLambda"); }
@Test public void testClassLoop() { doTest("TestClassLoop"); }
@Test public void testClassSwitch() { doTest("TestClassSwitch"); }
@Test public void testClassTypes() { doTest("TestClassTypes"); }
@Test public void testClassVar() { doTest("TestClassVar"); }
@Test public void testDeprecations() { doTest("TestDeprecations"); }
@Test public void testExtendsList() { doTest("TestExtendsList"); }
@Test public void testMethodParameters() { doTest("TestMethodParameters"); }
@Test public void testCodeConstructs() { doTest("TestCodeConstructs"); }
@Test public void testConstants() { doTest("TestConstants"); }
@Test public void testEnum() { doTest("TestEnum"); }
private void doTest(final String testName) {
try {
File classFile = new File(testDataDir, "/classes/pkg/" + testName + ".class");
assertTrue(classFile.isFile());
decompiler.addSpace(classFile, true);
File[] innerClasses = classFile.getParentFile().listFiles(new FilenameFilter() {
@Override
public boolean accept(File dir, String name) {
return name.matches(testName + "\\$.+\\.class");
}
});
for (File inner : innerClasses) {
decompiler.addSpace(inner, true);
}
decompiler.decompileContext(tempDir);
File decompiledFile = new File(tempDir, testName + ".java");
assertTrue(decompiledFile.isFile());
File referenceFile = new File(testDataDir, "results/" + testName + ".dec");
assertTrue(referenceFile.isFile());
String decompiledContent = getContent(decompiledFile);
String referenceContent = getContent(referenceFile);
assertEquals(referenceContent, decompiledContent);
}
catch (Exception e) {
throw new RuntimeException(e);
}
}
private static boolean isTestDataDir(File dir) {
return dir.isDirectory() && new File(dir, "classes").isDirectory() && new File(dir, "results").isDirectory();
}
private static String getContent(File file) throws IOException {
Reader reader = new InputStreamReader(new FileInputStream(file), "UTF-8");
try {
char[] buff = new char[16 * 1024];
StringBuilder content = new StringBuilder();
int n;
while ((n = reader.read(buff)) > 0) {
content.append(buff, 0, n);
}
return content.toString();
}
finally {
reader.close();
}
}
private static void delete(File file) {
if (file.isDirectory()) {
File[] files = file.listFiles();
if (files != null) {
for (File f : files) delete(f);
}
}
else {
assertTrue(file.delete());
}
}
}
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