Write test code early

Write the test code first (before you write the class) in order to verify that your class design is complete. If you can't write test code, you don't know what your class looks like. In addition, the act of writing the test code will often flush out additional features or constraints that you need in the class-these features or constraints don't always appear during analysis and design. Tests also provide example code showing how your class can be used.



Previous: #7 - Automate everything
 
Next: #9 - Get abstract


Elegance always pays off Use bare bones methodology
First make it work, then make it fast Automate everything
Remember the "divide and conquer" principle Write test code early
Separate the class creator from the class user (client programmer) Get abstract
Name classes intelligently An indirection should have a meaning


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