Upload
simonkenyonshepard
View
565
Download
3
Tags:
Embed Size (px)
Citation preview
JasmineUnit testing with
Why unit test?
Your probably already doing it (debugging)
Prevents regression/allows REFACTORING
Fastest form of quality feedback Allows you to work on other peoples
code Improves the design of your code Is a form of living documentation
What is a unit?
“The smallest testable part of an application” JavaScript public function === unit
Utility Code Functional Code
How to unit test?
Practical
The good
TDD – test driven development Write a test Run it (it’s red) Write some code Run it (it goes green) Repeat.
The bad
Testing after the fact Boring Harder to write test code Tightly coupled test code Miss ‘conceptual’ errors
The practical
Test during development New features ? Test driven development Bug fixes ? write tests for the unit Before refactor ? write tests before &
modify
End game
Comprehensive suite of tests for your app
Test lines ratio to code @3 : 1 Run on every commit by CI ‘Stop the line’ when a test fails
Jasmine Overview
Behavior driven development (bdd) describe(”your module", function() {
it(”should be unit tested", function() { expect(isUnitTested()).toBe(true); });
});
Live Demo!