package com.github.sommeri.less4j.utils;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import org.junit.rules.TestRule;
import org.junit.runner.Description;
import org.junit.runners.model.Statement;
public class DeleteFilesRule implements TestRule {
private List<File> files;
public void ensureRemoval(String... filenames) {
for (String filename : filenames) {
ensureRemoval(new File(filename));
}
}
public void ensureRemoval(File file) {
remove(file);
files.add(file);
}
private void remove(File file) {
if (file.exists())
file.delete();
}
public Statement apply(final Statement base, final Description description) {
return new Statement() {
@Override
public void evaluate() throws Throwable {
files = new ArrayList<File>();
try {
base.evaluate();
} finally {
for (File file : files) {
remove(file);
}
}
}
};
}
}