def test_emptyImportExport(self):
     tempFile = 'temp.csv'
     tempExport = DataFrame()
     
     export_dataFrame(tempExport,tempFile)
     tempImport = import_dataFrame(tempFile)
     assert tempImport.empty == tempExport.empty
 def test_noImport(self):
     data = import_dataFrame('')
     assert data == None