text: # -*- coding: utf-8 -*-
  
  """Tests for provenance summary functions."""
  
  import unittest
  
  from pybel.examples import sialic_acid_graph
  from pybel.struct import count_citations
  
  
  class TestProvenance(unittest.TestCase):
      """Tests for provenance summary functions."""
  
      def test_count_citations(self):
          """Test counting citations."""
          count = count_citations(sialic_acid_graph)
          self.assertEqual(1, count)
  