assertNotNull(zip.getEntry("file.txt"));
assertNotNull(zip.getEntry("subdir/someFile.txt"));
zip.close();
IDirectory dir = FileSystem.getFSRoot(new File("ioUtilsTest"));
IFile izip = dir.getFile("test.zip");
File output = new File("ioUtilsTest/zipout");
output.mkdirs();
IOUtils.unpackZip(izip, output);
File a = new File(output,"file.txt");
File b = new File(output,"subdir");