NUnit: abort test if it takes too long

Question

Is there a nice and simple way to get NUnit to kill a test that takes more than a specified amount of time?

Ideally it would not only kill the app domain in which the test was running, but also any child processes the test started.

Answer 1

If you are using NUnit 2.5 you can use the Timeout attribute to fail the test after specified amount of time. Unfortunately you will need to clean all the resources yourself - e.g. in the TearDown method check if the processes are running and kill them etc.

Answer 2

This looks like a test smell. In my opinion with setting timeout you try to fight a symptom. Unit tests should be quick and reproducible (also in speed).

Why is the test taking so long? Is it even randomly "taking long" (sometimes executes fast, sometimes not)?