class_docstr: Test the scene class.
class_docstr_tok: ["Test","the","scene","class","."]
docstr: Test creating a reader providing filenames.
docstr_tok: ["Test","creating","a","reader","providing","filenames","."]
code: def test_create_reader_instances_with_filenames(self):
      """Test creating a reader providing filenames."""
      filenames = ["bla", "foo", "bar"]
      reader_name = None
      with mock.patch("satpy.scene.load_readers") as findermock:
          Scene(filenames=filenames)
          findermock.assert_called_once_with(
              filenames=filenames,
              reader=reader_name,
              reader_kwargs=None,
          )
  
imports: import os
  import random
  import string
  from copy import deepcopy
  from unittest import mock
  import pytest
  import satpy
  from satpy import Scene
  from satpy.tests.utils import FAKE_FILEHANDLER_END, FAKE_FILEHANDLER_START, spy_decorator
label_desc: Use image node_id 7 for calling the TestScene obj's underlying member method code with example usage: obj.test_create_reader_instances_with_filenames() without return types