def METHOD_NAME(self):
    cfile = AvgChunkFile(os.path.join(EXAMPLES_DIR, AVG_CHUNK_FILE))
    self.assertEqual(cfile.fix_name, "4")
    self.assertEqual(cfile.group_name, "all")
    self.assertEqual(cfile.timesteps, list(range(10000, 110000, 5000)))
    ntimesteps = len(cfile.timesteps)
    ntotal_count = len(cfile.total_count)
    nchunks = len(cfile.chunks)
    self.assertEqual(ntimesteps, ntotal_count)
    self.assertEqual(nchunks, 20)
    for i in range(1, nchunks+1):
        chunk  = cfile.chunks[i-1];
        self.assertEqual(chunk['id'], i)
        self.assertEqual(len(chunk['coord']), ntimesteps)
        self.assertEqual(len(chunk['ncount']), ntimesteps)
        self.assertIn("vx", chunk)
        self.assertEqual(len(chunk['vx']), ntimesteps)
    self.assertEqual(len(chunk['coord'][0]), 1)