Chapter 2
Classic TDD I – Test-Driven Development
Any fool can write code that a computer can understand. Good programmers write code that humans can understand.
– Martin Fowler
When I was developing software for automated cash machines, we created a simple Graphical User Interface (GUI) to test our code. The GUI was a plain window full of small buttons, each performing a specific operation.
To perform a test, an operator would press the buttons on the GUI. The granularity of the operations was so fine that to run a test, an operator had to press several buttons in a specific sequence.
We did not have automated sequences, nor were we generating any reports. Nevertheless, we were very proud of our test GUIs. The quality assurance engineers ...
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