I'm trying to run UI-tests (written using white). When I run them using NUnitConsole everything works fine. When I try to run them using TeamCity I get the following exception Test(s) failed. White.Core.UIItems.UIActionException : Couldn't find window with title Form1 in process 4132, after waiting for 5000 ms. What might be wrong? What could I do to make the test pass?
Not only does the build agent need to be set to interact with the desktop, but the desktop must be displayed in order for UI automation to work - desktop cannot be locked and screen saver must not be running. Is your agent on a headless machine? If you are using RDP to connect to the agent to check on things, when you close RDP, it locks the desktop. In this case, the automation will fail. Instead of using RDP, use a VNC viewer to log on to the box, rather than RDP, as VNC will not lock the desktop when you close it.
Another issue to consider is network access. If you are running TC agent as a service with access to desktop, then it will be running under service account which will not have access to network shares, etc... If this is a probelm, then you will not be able to run TC agent as a service, and will instead need to logon with a domain user and kick off the agent.bat file to start the agent.