assertTrue("testPlanetCache not zero length", testPlanetCache.trim().length() > 0);
File cacheDir = new File(testPlanetCache);
if (!cacheDir.exists()) cacheDir.mkdirs();
DiskFeedInfoCache cache =
new DiskFeedInfoCache(PlanetConfig.getProperty("cache.dir"));
cache.setFeedInfo(info.getUrl(), info);
SyndFeedInfo info2 = cache.getFeedInfo(url);
assertNotNull(info2);
assertEquals(url, info2.getUrl());
}