Test Driven Development

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Presentation transcript:

Test Driven Development Tests as goal posts

TDD Test Driven Development : using tests to guide coding To add a new feature: Write a test that will use the new feature Write code to pass the test

Building a Class TDD way to build a class: Come up with basic spec Write .h Make .cpp with simplest constructor and accessor functions Repeat until no more functions left Pick a function (constructors first!) Write a test Run Test Write function While test fails, repeat c-e

TDD Granularity Can use TDD at multiple levels