### Question:
EvictedInstanceSerDe { public static String[] deserializeEvictedInstancePaths(final FileSystem fileSystem, final Path logFile) throws IOException { ByteArrayOutputStream writer = new ByteArrayOutputStream(); InputStream instance = fileSystem.open(logFile); IOUtils.copyBytes(instance, writer, 4096, true); String[] instancePaths = writer.toString().split(INSTANCEPATH_PREFIX); if (instancePaths.length <= 1) { LOG.info("Returning 0 instance paths for feed "); return new String[0]; } else { LOG.info("Returning instance paths for feed {}", instancePaths[1]); return instancePaths[1].split(INSTANCEPATH_SEPARATOR); } } private  EvictedInstanceSerDe(); static void serializeEvictedInstancePaths(final FileSystem fileSystem,
                                                     final Path logFilePath,
                                                     StringBuffer instances); static String[] deserializeEvictedInstancePaths(final FileSystem fileSystem,
                                                           final Path logFile); static final String INSTANCEPATH_PREFIX; static final String INSTANCEPATH_SEPARATOR; }### Answer:
@Test(dependsOnMethods = "testSerializeEvictedInstancePathsForNoEviction") public void testDeserializeEvictedInstancePathsForNoEviction() throws Exception { String[] instancePaths = EvictedInstanceSerDe.deserializeEvictedInstancePaths(fs, csvFilePathWithNoContent); Assert.assertEquals(instancePaths.length, 0); }
@Test(dependsOnMethods = "testSerializeEvictedInstancePathsWithEviction") public void testDeserializeEvictedInstancePathsWithEviction() throws Exception { String[] instancePaths = EvictedInstanceSerDe.deserializeEvictedInstancePaths(fs, csvFilePathWithContent); Assert.assertEquals(instancePaths.length, 2); Assert.assertTrue(instancePaths[0].equals( "thrift: Assert.assertTrue(instancePaths[1].equals( "thrift: }