old_contents: import unittest
  import io
  from flowio import FlowData
  
  
  class FlowDataTestCase(unittest.TestCase):
      def setUp(self):
          self.flow_data = FlowData('examples/fcs_files/3FITC_4PE_004.fcs')
          
      def test_get_points(self):
          self.assertEqual(
              len(self.flow_data.events) / self.flow_data.channel_count,
              int(self.flow_data.text['tot']))
  
      def test_get_text(self):
          self.assertEqual(self.flow_data.text['cyt'], 'FACScan')
  
      @staticmethod
      def test_load_fcs_from_memory():
          with open('examples/fcs_files/3FITC_4PE_004.fcs', 'rb') as f:
              mem_file = io.BytesIO(f.read())
              FlowData(mem_file)
  
      def test_issue_03(self):
          """
          Tests Attune FCS files for error in FlowData method parse_float_data:
  
          flowio/flowdata.py in __parse_float_data(self, offset, start, stop, data_type, order)
              256
              257         tmp = unpack('%s%d%s' % (order, num_items, data_type),
          --> 258                      self.__read_bytes(offset, start, stop))
              259         return tmp
              260
  
          error: unpack requires a buffer of 277676 bytes
          """
          flow_data = FlowData('examples/fcs_files/G11.fcs')
  
          self.assertIsInstance(flow_data, FlowData)
  
new_contents: import unittest
  import os
  import io
  from flowio import FlowData
  
  
  class FlowDataTestCase(unittest.TestCase):
      def setUp(self):
          self.flow_data = FlowData('examples/fcs_files/3FITC_4PE_004.fcs')
          self.flow_data_spill = FlowData('examples/fcs_files/100715.fcs')
          
      def test_get_points(self):
          self.assertEqual(
              len(self.flow_data.events) / self.flow_data.channel_count,
              int(self.flow_data.text['tot']))
  
      def test_get_text(self):
          self.assertEqual(self.flow_data.text['cyt'], 'FACScan')
  
      @staticmethod
      def test_load_fcs_from_memory():
          with open('examples/fcs_files/3FITC_4PE_004.fcs', 'rb') as f:
              mem_file = io.BytesIO(f.read())
              FlowData(mem_file)
  
      def test_write_fcs(self):
          file_name = 'flowio/tests/flowio_test_write_fcs.fcs'
          self.flow_data_spill.write_fcs(file_name)
  
          fcs_export = FlowData(file_name)
  
          self.assertIsInstance(fcs_export, FlowData)
          os.unlink(file_name)
  
      def test_issue_03(self):
          """
          Tests Attune FCS files for error in FlowData method parse_float_data:
  
          flowio/flowdata.py in __parse_float_data(self, offset, start, stop, data_type, order)
              256
              257         tmp = unpack('%s%d%s' % (order, num_items, data_type),
          --> 258                      self.__read_bytes(offset, start, stop))
              259         return tmp
              260
  
          error: unpack requires a buffer of 277676 bytes
          """
          flow_data = FlowData('examples/fcs_files/G11.fcs')
  
          self.assertIsInstance(flow_data, FlowData)
  
subject: add test for FlowData.write_fcs