When unit testing a server, why not USE the server?
One of the interesting aspects of build RavenDB was that it opened up my mind to the way we can use the very nature of the server to open up additional information about the server operations.
One thing that I noticed recently is that if I need to debug a test for RavenDB, I often need to stop the current thread (the Test thread) and then literally go to the server test instance and look at what is actually going on in there.
The fun part is that this is really nice, because I can go an inspect the running test instance, see what is going on, modify things to see how they affect the behavior, etc. The only problem is that this is actually quite complex to setup manually (stop on debugger, freeze the appropriate thread, resume run, inspect server – modify stuff there, stop on debugger, thaw thread, continue run, etc).
What occurred to me, however, is that I can codify this behavior, and end up with this:
This method will only operate while a debugger is attached, but it is going to save me a long time. Once I am done, I need to delete the marker document:
This is especially important if you are running in and in memory mode, since the moment the test is over, the database is completely wiped out.