Unit testing a flow
You can test a flow individually before testing it in the context of the entire application that you are developing.
You run through the flow, provide sample data as the input, and examine the behavior and results to see if they are what you expect. When you test a flow, the system creates new test page, starts running the flow, and creates a case.
In the navigation pane of Dev Studio, click, and then select the flow.
Clickfrom the toolbar.
Step through each decision or assignment, providing input in each step.
Run through the rule as many times as necessary, testing each possible path.