'Test the creation of a simple XlsxWriter file with unused formats.'

def test_create_file(self):

    workbook = Workbook(self.got_filename)
    worksheet1 = workbook.add_worksheet()
    worksheet2 = workbook.add_worksheet('Data    Sheet')
    worksheet3 = workbook.add_worksheet()
    unused1 = workbook.add_format({'bold': 1})
    bold = workbook.add_format({'bold': 1})
    unused2 = workbook.add_format({'bold': 1})
    unused3 = workbook.add_format({'italic': 1})
    worksheet1.write('A1', 'Foo')
    worksheet1.write('A2', 123)
    worksheet3.write('B2', 'Foo')
    worksheet3.write('B3', 'Bar', bold)
    worksheet3.write('C4', 234)
    workbook.close()
    self.assertExcelEqual()
