0 to 0, refactoring with TDD

Introduction presentation for TDD in node with refactoring as a context.

Code can be found at https://github.com/dmtrs/0-100refactoringwithTDD and steps are in tags.

Transcript

1. 0 to 100, refactoring with tdd refactoring as a context for unit tests #nodejsathens
2. Who am I? @dmtrsslvdr avocarrot.com & meetup.com/API-Athens
3. What is Refactoring? Restructuring existing computer code without changing its external behavior.
4. Why devs don’t write unit tests? • Writing unit test sucks • ☠☠☠ Deadlines ☠☠☠ • Not early established habit • Consequences of not writing tests ◦ are delayed ◦ suffered by other people
5. Refactoring with TDD By continually re-running the test cases throughout each refactoring phase, the developer can be confident that process is not altering any existing functionality.
6. Confidence
7. Tools • Tape “tap-producing test harness for node and browsers” https://github.com/substack/tape • Istanbul “a JS code coverage tool written in JS” https://github.com/gotwarlost/istanbul
8. Code https://github.com/dmtrs/0-100refactoringwithTDD
9. Recap • Writing unit test should be easy • Accommodate time in your schedule • 0% to 100% a percent at a time
10. Q&A