code: def test_invalid_padding(self):
      with pytest.raises(ValueError):
          with tf.compat.v1.variable_scope("CNN"):
              self.cnn = cnn(
                  input_var=self._input_ph,
                  input_dim=self.input_dim,
                  filters=((32, (3, 3)),),
                  strides=(1,),
                  name="cnn",
                  padding="UNKNOWN",
              )
  
file_path: garage/tests/garage/tf/models/test_cnn.py
imports: import numpy
  import pytest
  import tensorflow
  from garage.tf.models.cnn import cnn, cnn_with_max_pooling
  from tests.fixtures import TfGraphTestCase
  from tests.helpers import convolve, max_pooling
label_desc: Use image node_id 8 for calling the TestCNN obj's underlying member method code with example usage: obj.test_invalid_padding() without return types