2021-10-08

这里写自定义目录标题

• Selenium 截全屏
• 结果

Selenium 截全屏

当使用Selenium进行自动化测试时，有的时候需要截取网页的全部内容，但是Selenium自带的截屏函数save_screenshot()只能截取部分图片，网上也有先滚动页面再拼接的函数，但是会有重复的部分，而且需要根据页面设置参数。下面这种方法避免了上述问题，写下来避免遗忘。

def save_fullscreenshot(driver,screen_shot_name):
    # We need the dimensions of the content
    page_rect = driver.execute_cdp_cmd('Page.getLayoutMetrics', {})

    # parameters needed for ful page screenshot
    # note we are setting the width and height of the viewport to screenshot, same as the site's content size
    screenshot_config = {'captureBeyondViewport': True,
                         'fromSurface': True,
                         'clip': {'width': page_rect['contentSize']['width'],
                                  'height': page_rect['contentSize']['height'],
                                  'x': 0,
                                  'y': 0,
                                  'scale': 1},
                         }
    # Dictionary with 1 key: data
    base_64_png = driver.execute_cdp_cmd('Page.captureScreenshot', screenshot_config)

    # Write img to file
    with open(screen_shot_name, "wb") as fh:
        fh.write(base64.urlsafe_b64decode(base_64_png['data']))

结果