class_docstr: Checks the full filesystem resolution functionality, exercising each URL interpretation case.
code: def setUpClass(cls):
      cls.mock = MockHdfsConnector()
      cls.mock_name = "mock-manager"
  
imports: import unittest
  import dill
  from pyarrow.filesystem import LocalFileSystem
  from pyarrow.lib import ArrowIOError
  from six.moves.urllib.parse import urlparse
  import gcsfs
  import s3fs
  from petastorm.fs_utils import FilesystemResolver, get_filesystem_and_path_or_paths
  from petastorm.hdfs.tests.test_hdfs_namenode import HC, MockHadoopConfiguration, MockHdfs, MockHdfsConnector
label_desc: Use image node_id 1 for calling the FilesystemResolverTest obj's underlying member method code with example usage: obj.setUpClass(cls) without return types