class_docstr: Test the Scene object's `.load` method for composites.
class_docstr_tok: ["Test","the","Scene","object","'s","`",".load","`","method","for","composites","."]
docstr: Test loading a composite that depends on a composite that won't load.
code: def test_load_comp17(self):
      """Test loading a composite that depends on a composite that won't load."""
      scene = Scene(filenames=["fake1_1.txt"], reader="fake1")
      scene.load(["comp17"])
      loaded_ids = list(scene._datasets.keys())
      assert not loaded_ids
  
imports: from unittest import mock
  import pytest
  import xarray
  from dask import array
  from satpy import Scene
  from satpy.tests.utils import make_cid, make_dataid, make_dsq, spy_decorator
label_desc: Use image node_id 6 for calling the TestLoadingComposites obj's underlying member method code with example usage: obj.test_load_comp17() without return types