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Test Driven Development: By Example by Kent Beck

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Chapter 26. Red Bar Patterns

These patterns are about when you write tests, where you write tests, and when you stop writing tests.

One Step Test

Which test should you pick next from the list? Pick a test that will teach you something and that you are confident you can implement.

Each test should represent one step toward your overall goal. Looking at the following Test List, then, which test should we pick next?

Plus

Minus

Times

Divide

Plus like

Equals

Equals null

Null exchange

Exchange one currency

Exchange two currencies

Cross rate

There is no right answer. What is one step for me, never having implemented these objects before, will be one-tenth of a step to you, with your vast experience. If you don't find any test on the list that represents one ...

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