量角器sendkeys不起作用:按键代码转换需要x显示 [英] Protractor sendkeys not working: an x display is required for keycode conversions
问题描述
我正在尝试使用无头Chrome在Vagrant VM中运行Protractor e2e测试. 我设法通过使用Xvfb使其正常工作，但是当我运行测试以填写表格时出现错误:未知错误:密钥代码转换需要X显示，请考虑使用Xvfb
I am trying to run Protractor e2e tests inside a Vagrant VM using headless Chrome. I managed to get it working by using Xvfb but when I run a test to fill a form I get an error: unknown error: an X display is required for keycode conversions, consider using Xvfb
所有测试运行正常，但是一旦我使用getKeys()(例如element(by.model('user.email')).sendKeys('admin');)，即使我已经使用了，我也会收到此错误消息使用Xvfb.
All tests run fine but as soon as I use getKeys() (e.g. element(by.model('user.email')).sendKeys('admin'); ) I get this error, even though I am already using Xvfb.
我正在跑步:
- 使用Yeoman角全栈生成器生成的AngularJS示例应用程序
- 与nvm一起安装的Nodejs版本0.10.30
- 流浪者1.6.3
- VirtualBox 4.3.14
- 主机操作系统Ubuntu 14.04 32位
- 来宾操作系统Ubuntu 14.04 32位
- chrome 37.0.2062.94
- chromedriver 2.10.267517
我使用以下shell脚本启动Selenium和Xvfb:
I use the following shell script to start Selenium and Xvfb:
#！/bin/sh
#!/bin/sh
webdriver-manager启动&
webdriver-manager start &
Xvfb:1 -ac -screen 0 1280x1024x8&
Xvfb :1 -ac -screen 0 1280x1024x8 &
export DISPLAY =:1
export DISPLAY=:1
我还向/opt/google/chrome/google-chrome添加了导出DISPLAY =:1". 同样，没有sendKeys()的测试也可以正常运行.
I also added "export DISPLAY=:1" to /opt/google/chrome/google-chrome. Again, tests without sendKeys() run fine.
我到目前为止所做的事情:
- 我正在运行32位Ubuntu，因此我下载了32位chromedriver 2.10，但这没有帮助
- 我用--verbose运行了chromedriver并检查了日志，但这只显示了相同的错误
- 我摆弄Xvfb屏幕尺寸设置，也无济于事
- 我在此处检查了一些源代码: https://github.com/bayandin/chromedriver/blob/master/keycode_text_conversion_x.cc ，并在第196行找到了错误消息. 当命令gfx :: GetXDisplay()(第193行)没有获得显示对象时，将触发该事件.我怀疑这可能只是我在/opt/google/chrome/google-chrome中导出的DISPLAY变量，但我不确定，也不知道如何解决它.
- I'm running 32 bits Ubuntu so I downloaded chromedriver 2.10 32 bits but that didn't help
- I ran chromedriver with --verbose and checked the logs but that only shows the same error
- I fiddled with the Xvfb screen dimension settings, didn't help either
- I checked some source code here: https://github.com/bayandin/chromedriver/blob/master/keycode_text_conversion_x.cc and found the error message on line 196. It's triggered when the command gfx::GetXDisplay() (line 193) doesn't get a display object. I suspect that it might be just the DISPLAY variable I export in /opt/google/chrome/google-chrome but I'm not sure and have no idea how to fix it.
我想知道如何在Vagrant VM内使用sendfkeys()与无头Chrome一起工作. 任何帮助将不胜感激.
I would like to know how I can get sendfkeys() working with headless Chrome inside a Vagrant VM. Any help is greatly appreciated.
推荐答案
Ensure seleniumAddress: 'http://localhost:4444/wd/hub' matches your selenium server and avoid setting chromeOnly since that will effectively avoid using the headless selenium server.
此外，Xvfb需要在webdriver-manager之前运行，并且您错过了xvfb-run，因为您似乎需要它来执行
Also, Xvfb needs to run before webdriver-manager and you're missing xvfb-run given you seem to need it to do the X authority dance for you:
#!/bin/sh
export DISPLAY=:1
Xvfb $DISPLAY -ac -screen 0 1280x1024x8 &
sleep 1
xvfb-run webdriver-manager start &
如果您有兴趣，我会设置一个基于Docker的无头解决方案，并提供可选的VNC访问和视频录制功能:
In case you're interested I've setup a headless docker based solution with optional VNC access plus video recording: https://github.com/elgalu/docker-selenium
这篇关于量角器sendkeys不起作用:按键代码转换需要x显示的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
