code: def test_forward_raises_with_invalid_indices(self):
      sequence_tensor = torch.randn([2, 5, 8])
      extractor = BidirectionalEndpointSpanExtractor(input_dim=8)
      indices = torch.LongTensor(
          [[[-1, 3], [7, 4]], [[0, 12], [0, -1]]]
      )
  
      with pytest.raises(ValueError):
          _ = extractor(sequence_tensor, indices)
  
file_path: allennlp/tests/modules/span_extractors/bidirectional_endpoint_span_extractor_test.py
imports: import numpy
  import pytest
  import torch
  from allennlp.common.checks import ConfigurationError
  from allennlp.common.params import Params
  from allennlp.modules.span_extractors import BidirectionalEndpointSpanExtractor, SpanExtractor
  from allennlp.nn.util import batched_index_select
label_desc: Use image node_id 6 for calling the TestBidirectonalEndpointSpanExtractor obj's underlying member method code with example usage: obj.test_forward_raises_with_invalid_indices() without return types