class_docstr: Test the AtmsL1bNCFileHandler reader.
class_docstr_tok: ["Test","the","AtmsL1bNCFileHandler","reader","."]
docstr: Test drop coordinates.
docstr_tok: ["Test","drop","coordinates","."]
code: def test_drop_coords(self, reader):
      """Test drop coordinates."""
      coords = "dummy"
      data = xr.DataArray(
          np.ones(10),
          dims=("y"),
          coords={coords: 0},
      )
      assert coords in data.coords
      data = reader._drop_coords(data)
      assert coords not in data.coords
  
file_path: satpy/satpy/tests/reader_tests/test_atms_l1b_nc.py
imports: from datetime import datetime
  import numpy
  import pytest
  import xarray
  from satpy.readers.atms_l1b_nc import AtmsL1bNCFileHandler
label_desc: Use image node_id 8 for calling the TestAtsmsL1bNCFileHandler obj's underlying member method code with example usage: obj.test_drop_coords(reader) without return types