protected File copyResourceToDirectory(File directory, String fileName) throws IOException {
    URL url = getClass().getResource(fileName);
    File file = new File(directory, fileName);
    FileUtils.copyURLToFile(url, file);
    return file;
  }
The version of GemFire tested by this class. This method should be overridden by subclasses.

@return version of GemFire tested by this class
@see CacheXml#VERSION_3_0
geode-dunit/src/main/java/org/apache/geode/cache30/CacheXmlTestCase.java