class_docstr: Test VIRR L1B Reader.
class_docstr_tok: ["Test","VIRR","L1B","Reader","."]
docstr: Test that FY3C files are recognized.
docstr_tok: ["Test","that","FY3C","files","are","recognized","."]
code: def test_fy3c_file(self):
      """Test that FY3C files are recognized."""
      from satpy.readers import load_reader
  
      FY3C_reader = load_reader(self.reader_configs)
      FY3C_files = FY3C_reader.select_files_from_pathnames(
          [
              "tf2018359143912.FY3C-L_VIRRX_GEOXX.HDF",
              "tf2018359143912.FY3C-L_VIRRX_L1B.HDF",
          ]
      )
      assert 2 == len(FY3C_files)
      FY3C_reader.create_filehandlers(FY3C_files)
      # Make sure we have some files
      assert FY3C_reader.file_handlers
      self._fy3_helper("FY3C", FY3C_reader, "1")
  
imports: import os
  import unittest
  from unittest import mock
  import dask.array
  import numpy
  import xarray
  from satpy.tests.reader_tests.test_hdf5_utils import FakeHDF5FileHandler
label_desc: Use image node_id 6 for calling the TestVIRRL1BReader obj's underlying member method code with example usage: obj.test_fy3c_file() without return types