docstr: Test s_one_pre segmentation.
docstr_tok: ["Test","s_one_pre","segmentation","."]
code: def test_s_one_pre(self):
      """Test s_one_pre segmentation."""
      actual = segmentation.s_one_pre(self.topics)
      expected = [
          [(4, 9), (6, 9), (6, 4)],
          [(10, 9), (7, 9), (7, 10)],
          [(2, 5), (7, 5), (7, 2)],
      ]
      self.assertTrue(np.allclose(actual, expected))
  
file_path: gensim/gensim/test/test_segmentation.py
imports: import logging
  import unittest
  import numpy
  from gensim.topic_coherence import segmentation
  from numpy import array
label_desc: Use image node_id 2 for calling the TestSegmentation obj's underlying member method code with example usage: obj.test_s_one_pre() without return types