class_docstr: Tests for TensorBuffer in eager mode.
code: def test_fail_on_scalar(self):
      with self.assertRaisesRegex(
          ValueError, "Shape cannot be scalar."
      ):
          tensor_buffer.TensorBuffer(1, ())
  
imports: import tensorflow
  from tensorflow_privacy.privacy.analysis import tensor_buffer
label_desc: Use image node_id 2 for calling the TensorBufferTest obj's underlying member method code with example usage: obj.test_fail_on_scalar() without return types