在linux上使用量角器运行selenium chromedriver

Question

我正在使用量角器对角度应用程序运行测试。他们在我的OSX环境中工作，但在TeamCity尝试运行它的Linux上却不工作。

当我在本地OSX环境中运行此命令时，它可以工作（在我的同事机器上也进行了测试）：

./node_modules/protractor/bin/protractor protractor.conf.js

Using ChromeDriver directly...
..
Finished in 5.55 seconds
2 tests, 2 assertions, 0 failures

当我在linux机器上运行此操作时，或者TeamCity作业尝试运行它时，它会失败：

./node_modules/protractor/bin/protractor protractor.conf.js

Using ChromeDriver directly...

/usr/share/TeamCity/buildAgent/work/57bd89f9c9abb5d5/webapp/node_modules/protractor/node_modules/selenium-webdriver/http/util.js:87
          Error('Timed out waiting for the WebDriver server at ' + url));
          ^
Error: Timed out waiting for the WebDriver server at http://127.0.0.1:52959/
    at Error (<anonymous>)
    at onResponse (/usr/share/TeamCity/buildAgent/work/57bd89f9c9abb5d5/webapp/node_modules/protractor/node_modules/selenium-webdriver/http/util.js:87:11)
    at /usr/share/TeamCity/buildAgent/work/57bd89f9c9abb5d5/webapp/node_modules/protractor/node_modules/selenium-webdriver/http/util.js:42:21
    at /usr/share/TeamCity/buildAgent/work/57bd89f9c9abb5d5/webapp/node_modules/protractor/node_modules/selenium-webdriver/lib/webdriver/http/http.js:96:5
    at ClientRequest.<anonymous> (/usr/share/TeamCity/buildAgent/work/57bd89f9c9abb5d5/webapp/node_modules/protractor/node_modules/selenium-webdriver/http/index.js:136:7)
    at ClientRequest.EventEmitter.emit (events.js:95:17)
    at Socket.socketErrorListener (http.js:1547:9)
    at Socket.EventEmitter.emit (events.js:95:17)
    at net.js:440:14
    at process._tickCallback (node.js:415:13)
==== async task ====
WebDriver.createSession()
    at Function.webdriver.WebDriver.acquireSession_ (/usr/share/TeamCity/buildAgent/work/57bd89f9c9abb5d5/webapp/node_modules/protractor/node_modules/selenium-webdriver/lib/webdriver/webdriver.js:131:49)
    at Function.webdriver.WebDriver.createSession (/usr/share/TeamCity/buildAgent/work/57bd89f9c9abb5d5/webapp/node_modules/protractor/node_modules/selenium-webdriver/lib/webdriver/webdriver.js:111:30)

我已经研究过这个问题，但独立的webdrive服务器不是解决方案。

我研究了这个问题，但我的selenium wedriver版本是2.42.1，所以，不是同一个bug。

$ node --version
v0.10.26

$ ./node_modules/protractor/bin/protractor --version
Version 1.0.0

$ uname -mrs
Linux 3.11.0-15-generic x86_64

试图获取chrome webdriver的版本时暴露了一个问题：

$ ./node_modules/protractor/selenium/chromedriver --version
./node_modules/protractor/selenium/chromedriver: error while loading shared libraries: libnss3.so: cannot open shared object file: No such file or directory

由此我得出结论，存在依赖性问题，并发现硒需要铬。（更多）。

我使用以下步骤将Chrome安装到Linux设备上：

sudo apt-get install libxss1 libappindicator1 libindicator7
sudo wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
sudo dpkg -i google-chrome*.deb

这并不完全像那样工作，但是经过几次依赖和sudo apt-get install的反复，我想我安装了Chrome：

$ google-chrome --version
Google Chrome 36.0.1985.143 

这使得chromedriver版本能够正常工作：

$ ./node_modules/protractor/selenium/chromedriver --version
ChromeDriver 2.10.267518

但是，运行量角器仍然不起作用：

$ ./node_modules/protractor/bin/protractor protractor.conf.js
Using ChromeDriver directly...

/usr/share/TeamCity/buildAgent/work/57bd89f9c9abb5d5/webapp/node_modules/protractor/node_modules/selenium-webdriver/lib/atoms/error.js:109
  var template = new Error(this.message);
                 ^
UnknownError: unknown error: Chrome failed to start: exited abnormally
  (Driver info: chromedriver=2.10.267518,platform=Linux 3.11.0-15-generic x86_64)
    at new bot.Error (/usr/share/TeamCity/buildAgent/work/57bd89f9c9abb5d5/webapp/node_modules/protractor/node_modules/selenium-webdriver/lib/atoms/error.js:109:18)
    at Object.bot.response.checkResponse (/usr/share/TeamCity/buildAgent/work/57bd89f9c9abb5d5/webapp/node_modules/protractor/node_modules/selenium-webdriver/lib/atoms/response.js:106:9)

Answer 1

我也遇到了同样的问题，在安装unity-gtk3-module之后问题就解决了！！

<代码>yum安装unity-gtk3-module

Installing:
 PackageKit-gtk3-module                                      
 Updating:                                                          
Installing for dependencies:
 PackageKit-glib                                                 
 adwaita-cursor-theme                                          
 adwaita-icon-theme                                             
 at-spi2-atk                                                   
 at-spi2-core                                                   
 cairo-gobject                                                  
 colord-libs                                                    
 gtk3                                                            
 json-glib                                                       
 libXevie                                                       
 libgusb                                                  
 rest                                                           
 Updating for dependencies:
 glib2

我希望这有帮助

Answer 2

您需要能够运行Chrome或Firefox headless，为此，您需要配置Xvfb等，否则Chrome将无法在没有适当$显示的情况下启动。

您也可以使用PhantomJS，但恕我直言，这对e2e测试有什么好处，因为它不是真正的浏览器。

这就是我成功用于连续测试的原因：https://github.com/elgalu/docker-selenium