October 2013
Intermediate to advanced
368 pages
9h 20m
English
Content preview from Modern C++ Programming with Test-Driven Development
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3.3 The TDD Cycle: Red-Green-Refactor
When doing TDD, you repeat a short cycle of the following:
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Write a test (“red”).
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Get the test to pass (“green”).
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Optimize the design (“refactor”).
This cycle is often summarized as red-green-refactor, a phrase that stems from unit testing tools used for TDD. Red (fail) and pass (green) derive from SUnit (the first unit testing tool designed to support TDD[8]) and similar GUI tools that use the colors to provide immediate feedback on test results. The text-based output of Google Mock uses red and green when executed in a terminal with color support.
During the refactoring step, you seek to ensure your codebase ...
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