text: ###############################################################################
  #
  # Tests for XlsxWriter.
  #
  # Copyright (c), 2013-2019, John McNamara, jmcnamara@cpan.org
  #
  
  import unittest
  from ...compatibility import StringIO
  from ...sharedstrings import SharedStrings
  
  
  class TestWriteSi(unittest.TestCase):
      """
      Test the SharedStrings _write_si() method.
  
      """
  
      def setUp(self):
          self.fh = StringIO()
          self.sharedstrings = SharedStrings()
          self.sharedstrings._set_filehandle(self.fh)
  
      def test_write_si(self):
          """Test the _write_si() method"""
  
          self.sharedstrings._write_si('neptune')
  
          exp = """<si><t>neptune</t></si>"""
          got = self.fh.getvalue()
  
          self.assertEqual(got, exp)
  