docstr: Test the Jacobian of the dot product.
docstr_tok: ["Test","the","Jacobian","of","the","dot","product","."]
code: def test_cross_jacobian_random(self):
      """Test the Jacobian of the dot product."""
      tensor_size = np.random.randint(3)
      tensor_shape = np.random.randint(
          1, 10, size=(tensor_size)
      ).tolist()
      u_init = np.random.random(size=tensor_shape + [3])
      v_init = np.random.random(size=tensor_shape + [3])
  
      self.assert_jacobian_is_correct_fn(vector.cross, [u_init, v_init])
  
imports: from absl.testing import flagsaver
  from absl.testing import parameterized
  import numpy
  import tensorflow
  from tensorflow_graphics.geometry.transformation.tests import test_data
  from tensorflow_graphics.math import vector
  from tensorflow_graphics.util import test_case
label_desc: Use image node_id 4 for calling the VectorTest obj's underlying member method code with example usage: obj.test_cross_jacobian_random() without return types