When you build automated WPF functional test using White in which you need to open a file through a Windows open file dialog, you will be confronted with the following issue. Windows open file dialog remember the last path with which you opened a file.

So you might have some unit tests that are green for a while which starts to be red for no apparent reasons.

I’d like to introduce a tool that I have added for a month or two in my toolset. This tool is White from ThoughtWorks. Here is the description of White:

White: Automate windows applications

Today I faced the following challenge to solve: return all possible combinations of three source collections.

We are using C# and with Linq it was just so easy.

Tonight we got the following issue on our TeamCity build server which produce different ClickOnce setups :

c:\WINDOWS\Microsoft.NET\Framework\v3.5\Microsoft.Common.targets(3652, 9): error MSB3482: An error occurred while signing: Failed to sign ....\Tests\Output\bin\DeployClickOnce\app.publish\setup.exe.