code: def test_zeros():
      """Make sure the module can run on an empty labels matrix"""
      workspace, module = make_workspace(
          numpy.zeros((10, 10)), numpy.zeros((10, 10), int)
      )
      module.run(workspace)
      m = workspace.measurements
      assert isinstance(m, cellprofiler_core.measurement.Measurements)
      for f in m.get_feature_names(INPUT_OBJECTS_NAME):
          if f.startswith(cellprofiler.modules.measuretexture.TEXTURE):
              values = m.get_current_measurement(INPUT_OBJECTS_NAME, f)
              assert len(values) == 0
  
imports: import io
  import numpy
  import cellprofiler_core.image
  import cellprofiler_core.measurement
  import cellprofiler.modules.measuretexture
  import cellprofiler_core.object
  import cellprofiler_core.pipeline
  import cellprofiler_core.workspace
label_desc: Use image node_id 8 for calling a global function with example usage: test_zeros() without return types