code: def testPaddingsMaximum(self):
      with test_util.use_gpu():
          with self.assertRaises(Exception):
              array_ops.pad(
                  constant_op.constant([1], shape=[2]),
                  constant_op.constant([2, 0], shape=[1, 2]),
                  mode="REFLECT",
              ).eval()
          with self.assertRaises(Exception):
              array_ops.pad(
                  constant_op.constant([1], shape=[2]),
                  constant_op.constant([0, 3], shape=[1, 2]),
                  mode="SYMMETRIC",
              ).eval()
  
imports: import numpy
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import gradient_checker_v2
  from tensorflow.python.platform import test
label_desc: Use image node_id 14 for calling the PadOpTest obj's underlying member method code with example usage: obj.testPaddingsMaximum() without return types