'Test the creation of a simple XlsxWriter file with image(s).'

def test_create_file(self):

    workbook = Workbook(self.got_filename)
    worksheet = workbook.add_worksheet()
    worksheet.set_header('&L&G', {'image_left': (self.image_dir + 'black_300.jpg')})
    workbook.close()
    self.assertExcelEqual()
