运行我的测试用例时，我的任何测试程序都尝试启动 Firefox，我得到了错误。我正在使用机器人框架、Selenium2Library 和 python 2.7。
1Login [ WARN ] Keyword 'Capture Page Screenshot' could not be run on failure: No browser is open
| FAIL |
WebDriverException: Message: 'The browser appears to have exited before we could connect. The output was: Error: no display specified\n'
我的 CentOS 服务器上有 Xwindows。我使用yum. 我的 Firefox 安装在firefox: /usr/bin/firefox /usr/lib64/firefox /usr/share/man/man1/firefox.1.gz
这里有什么问题？有没有人有类似的经历？有什么参考或建议吗？谢谢
编辑：
结果，在我运行demos之后。
==============================================================================
Login Tests
==============================================================================
Login Tests.Invalid Login :: A test suite containing tests related to inval...
==============================================================================
[ WARN ] Keyword 'Capture Page Screenshot' could not be run on failure: No browser is open
Invalid Username | FAIL |
Parent suite setup failed:
WebDriverException: Message: 'The browser appears to have exited before we could connect. The output was: Error: no display specified\n'
------------------------------------------------------------------------------
Invalid Password | FAIL |
Parent suite setup failed:
WebDriverException: Message: 'The browser appears to have exited before we could connect. The output was: Error: no display specified\n'
------------------------------------------------------------------------------
Invalid Username And Password | FAIL |
Parent suite setup failed:
WebDriverException: Message: 'The browser appears to have exited before we could connect. The output was: Error: no display specified\n'
------------------------------------------------------------------------------
Empty Username | FAIL |
Parent suite setup failed:
WebDriverException: Message: 'The browser appears to have exited before we could connect. The output was: Error: no display specified\n'
------------------------------------------------------------------------------
Empty Password | FAIL |
Parent suite setup failed:
WebDriverException: Message: 'The browser appears to have exited before we could connect. The output was: Error: no display specified\n'
------------------------------------------------------------------------------
Empty Username And Password | FAIL |
Parent suite setup failed:
WebDriverException: Message: 'The browser appears to have exited before we could connect. The output was: Error: no display specified\n'
------------------------------------------------------------------------------
Login Tests.Invalid Login :: A test suite containing tests related... | FAIL |
Suite setup failed:
WebDriverException: Message: 'The browser appears to have exited before we could connect. The output was: Error: no display specified\n'
6 critical tests, 0 passed, 6 failed
6 tests total, 0 passed, 6 failed
==============================================================================
Login Tests.Valid Login :: A test suite with a single test for valid login....
==============================================================================
[ WARN ] Keyword 'Capture Page Screenshot' could not be run on failure: No browser is open
Valid Login | FAIL |
WebDriverException: Message: 'The browser appears to have exited before we could connect. The output was: Error: no display specified\n'
------------------------------------------------------------------------------
Login Tests.Valid Login :: A test suite with a single test for val... | FAIL |
1 critical test, 0 passed, 1 failed
1 test total, 0 passed, 1 failed
==============================================================================
Login Tests | FAIL |
7 critical tests, 0 passed, 7 failed
7 tests total, 0 passed, 7 failed
==============================================================================
Output: /root/Downloads/robotframework-selenium2library/demo/output.xml
Log: /root/Downloads/robotframework-selenium2library/demo/log.html
Report: /root/Downloads/robotframework-selenium2library/demo/report.html