docstr: Tests that the shape exceptions are not raised.
docstr_tok: ["Tests","that","the","shape","exceptions","are","not","raised","."]
code: def test_face_normals_exception_not_raised(self, shapes, dtypes):
      """Tests that the shape exceptions are not raised."""
      self.assert_exception_is_not_raised(
          normals.face_normals, shapes, dtypes
      )
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from absl.testing import parameterized
  import numpy
  from six.moves import range
  import tensorflow
  from tensorflow_graphics.geometry.representation.mesh import normals
  from tensorflow_graphics.util import test_case
label_desc: Use image node_id 6 for calling the MeshTest obj's underlying member method code with example usage: obj.test_face_normals_exception_not_raised(shapes, dtypes) without return types