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/*
* Copyright © 2009 Reinier Zwitserloot and Roel Spilker.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package lombok;
import static org.junit.Assert.*;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileFilter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import javax.tools.Diagnostic;
import javax.tools.DiagnosticListener;
import javax.tools.JavaFileObject;
import lombok.delombok.Delombok;
public class RunTestsViaDelombok {
private static final FileFilter JAVA_FILE_FILTER = new FileFilter() {
@Override public boolean accept(File file) {
return file.isFile() && file.getName().endsWith(".java");
}
};
private static Delombok delombok = new Delombok();
private static volatile boolean printErrors = false;
private static final String LINE_SEPARATOR = System.getProperty("line.separator");
public static void runComparison(File beforeDir, File afterDir) throws Throwable {
File[] listFiles = beforeDir.listFiles(JAVA_FILE_FILTER);
for (File file : listFiles) {
compareFile(beforeDir, afterDir, file);
}
}
public static void compareFile(File beforeDir, File afterDir, File file) throws Throwable {
delombok.setVerbose(false);
delombok.setForceProcess(true);
delombok.setCharset("UTF-8");
final StringBuilder messages = new StringBuilder();
delombok.setDiagnosticsListener(new DiagnosticListener<JavaFileObject>() {
@Override public void report(Diagnostic<? extends JavaFileObject> d) {
messages.append(String.format("%d:%d %s %s\n", d.getLineNumber(), d.getColumnNumber(), d.getKind(), d.getMessage(Locale.ENGLISH)));
}
});
StringWriter writer = new StringWriter();
delombok.delombok(file.getAbsolutePath(), writer);
compare(file.getName(), readFile(afterDir, file, false), writer.toString(), readFile(beforeDir, file, true), messages.toString());
}
public static void printErrors(boolean print) {
printErrors = print;
}
private static void compare(String name, String expectedFile, String actualFile, String expectedMessages, String actualMessages) throws Throwable {
try {
compareContent(name, expectedFile, actualFile);
}
catch (Throwable e) {
if (printErrors) {
System.out.println("***** " + name + " *****");
System.out.println(e.getMessage());
System.out.println("**** Expected ******");
System.out.println(expectedFile);
System.out.println("**** Actual ******");
System.out.println(actualFile);
System.out.println("*******************");
}
throw e;
}
try {
compareContent(name, expectedMessages, actualMessages);
}
catch (Throwable e) {
if (printErrors) {
System.out.println("***** " + name + " *****");
System.out.println(e.getMessage());
System.out.println("**** Expected ******");
System.out.println(expectedMessages);
System.out.println("**** Actual ******");
System.out.println(actualMessages);
System.out.println("*******************");
}
throw e;
}
}
private static void compareContent(String name, String expectedFile, String actualFile) {
String[] expectedLines = expectedFile.split("(\\r?\\n)");
String[] actualLines = actualFile.split("(\\r?\\n)");
if (actualLines[0].startsWith("// Generated by delombok at ")) {
actualLines[0] = "";
}
expectedLines = removeBlanks(expectedLines);
actualLines = removeBlanks(actualLines);
int size = Math.min(expectedLines.length, actualLines.length);
for (int i = 0; i < size; i++) {
String expected = expectedLines[i];
String actual = actualLines[i];
assertEquals(String.format("Difference in %s on line %d", name, i + 1), expected, actual);
}
if (expectedLines.length > actualLines.length) {
fail(String.format("Missing line %d in generated %s: %s", size + 1, name, expectedLines[size]));
}
if (expectedLines.length < actualLines.length) {
fail(String.format("Extra line %d in generated %s: %s", size + 1, name, actualLines[size]));
}
}
private static String readFile(File afterDir, File file, boolean messages) throws IOException {
BufferedReader reader;
try {
reader = new BufferedReader(new FileReader(new File(afterDir, file.getName() + (messages ? ".messages" : ""))));
} catch (FileNotFoundException e) {
return "";
}
StringBuilder result = new StringBuilder();
String line;
while ((line = reader.readLine()) != null) {
result.append(line);
result.append(LINE_SEPARATOR);
}
reader.close();
return result.toString();
}
private static String[] removeBlanks(String[] in) {
List<String> out = new ArrayList<String>();
for (String s : in) {
if (!s.trim().isEmpty()) out.add(s);
}
return out.toArray(new String[0]);
}
}
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