python+appium自动化测试遇到的一些坑及问题总结（三）

Issue 21: 手机模拟滑动屏幕, 使用driver.get_window_size()会报错，提示selenium.common.exceptions.WebDriverException: Message: The URL ‘/wd/hub/session/2763af95-8c0c-4533-8b73-0eae25e5a026/window/size’ did not map to a valid resource

Solution:
源码路径：python-pathLibsite-packagesseleniumwebdriverremoteremote_connection.py (353行)

修改selenium源码变更get_window_size的请求路径为：
Command.W3C_GET_WINDOW_SIZE: (‘GET’, ‘/session/$sessionId/window/$windowHandle/size’),

参考：https://testerhome.com/topics/16435

Issue 22: 如何查看appium库的文档：

python -m pydoc -p 4567

Issue 23: uiautomatorviewer截图报错：Error while obtaining UI hierarchy XML file: com.android.ddmlib.SyncException: Remote object doesn’t exist!

Solution: 关掉appium

24. Appium-doctor报错:Why opencv4nodejs is needed and how to install it

info AppiumDoctor ### Optional Manual Fixes ###
info AppiumDoctor The configuration can install optionally. Please do the follow
ing manually:
WARN AppiumDoctor ➜ Why opencv4nodejs is needed and how to install it: https://
github.com/appium/appium/blob/master/docs/en/writing-running-appium/image-compar
ison.md
WARN AppiumDoctor ➜ ffmpeg is needed to record screen features. Please read htt
ps://www.ffmpeg.org/ to install it
WARN AppiumDoctor ➜ mjpeg-consumer module is required to use MJPEG-over-HTTP fe
atures. Please install it with ‘npm i -g mjpeg-consumer’.
WARN AppiumDoctor ➜ bundletool.jar is used to handle Android App Bundle. Please
read http://appium.io/docs/en/writing-running-appium/android/android-appbundle/
to install it. Also consider adding the “.jar” extension into your PATHEXT envi
ronment variable in order to fix the problem for Windows
WARN AppiumDoctor ➜ gst-launch-1.0.exe and gst-inspect-1.0.exe are used to stre
am the screen of the device under test. Please read https://appium.io/docs/en/wr
iting-running-appium/android/android-screen-streaming/ to install them and for m
ore details
info AppiumDoctor

solution:
直接下载cmake，然后配置环境变量。cmake -version有效后，执行npm -g install opencv4nodejs就可以了，亲测有效

25. 下载cmake非常慢，导致最后下载失败

Solution:
用迅雷下载，还是快多了，终于下载成功了

26. An unknown server-side error occurred while processing the command. Original error: Could not proxy command to the remote server. Original error: socket hang up

Solution:
case中加了sleep后，可能会报这个错。
查看appium server log中有该打印：
Shutting down because we waited 60 seconds for a command
Closing session, cause was 'New Command Timeout of 60 seconds expired. Try customizing the timeout using the

Appium在没有收到下一个命令时，默认超时时间是60s，超时后应用将会自动关闭session，所以你接下来的所有操作都将失败。（Android和iOS通用）
capabilities = {
‘automationName’: ‘UIAutomator2’,
#可以通过newcommandtimeout将超时时间改长，这样就解决了该问题！！
#超时时间可按照实际情况自定义！
‘newCommandTimeout’: “2000”,
‘unicodeKeyboard’: True,
‘resetKeyboard’: True,
‘noSign’: True
}
host = “http://localhost:4723/wd/hub”
driver = webdriver.Remote(host, capabilities)

27. Android SDK Manager下载android R失败，报错：URL not found xxxxx(Acess is denied)
    解决方法：
    用管理员身份运行SDK Manager.exe

最后

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