'Test \'0\' number format. GH103.'

def test_create_file(self):

    workbook = Workbook(self.got_filename)
    worksheet = workbook.add_worksheet()
    format1 = workbook.add_format({'num_format': 1})
    worksheet.write(0, 0, 1.23, format1)
    workbook.close()
    self.assertExcelEqual()
