'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.insert_image('A1', (self.image_dir + 'blue.png'))
    worksheet.insert_image('B3', (self.image_dir + 'red.jpg'))
    worksheet.insert_image('D5', (self.image_dir + 'yellow.jpg'))
    worksheet.insert_image('F9', (self.image_dir + 'grey.png'))
    workbook.close()
    self.assertExcelEqual()
