What is the best way to test my graphs?

I am fairly new to the product. I have created a number of fairly complex graphs mostly to take database queries and format output as XML, Excel or flat files. CloverETL graphs can replace in a day, what used to take weeks of custom Java code, or ridiculously complicated Excel spreadsheets.

However, I am struggling with the best way to test my graphs. I want to create tests like unit tests, that can run every time that I modify the graphs.

There seems to be a couple of ways that this can be done.
Is there a best practices method that people are using to perform on-going tests on their more complicated transformations?

Thanks for any help.

-Paul

Dear Paul,

please see answer here: viewtopic.php?f=4&t=6743&p=10721#p10721