class_docstr: This tests the ComparisonTestCase class which is an important
  component of other tests.
class_docstr_tok: ["This","tests","the","ComparisonTestCase","class","which","is","an","important","component","of","other","tests","."]
code: def test_matrices_equal(self):
      self.assertEqual(self.mat1, self.mat1)
  
imports: import numpy
  from holoviews import Image
  from holoviews.core import BoundingBox, Dimension
  from holoviews.core.element import HoloMap
  from holoviews.element.comparison import ComparisonTestCase
label_desc: Use image node_id 1 for calling the BasicRasterComparisonTest obj's underlying member method code with example usage: obj.test_matrices_equal() without return types