Here is a great blog by my intern Animesh Kumar. He worked for my over the summer and created a great tool Ptolemy: The Network Cartographer. For me it was an amazing experience and I am so happy to have had Animesh working for me this summer.
By Animesh Kumar:
During my initial years of work in IT industry I used to work on Automation of test suites for the tools I had developed or the APIs I had written. My notion about Automation at that time was to make everything in a program or tool run automatically without any manual effort. One click of a button and it should run all the scenarios by itself, covering all the possible test cases and corner cases. For doing this, I used to think of all the possible test cases, negative or positive and automate the testing for it. But every time a new bug came in and my test suite failed catching it, used to frustrate me a lot that even after putting in so much effort, I was unable to automate the testing.