Test Kitchen - A Recipe for Good Tests

This talk examines how to write good tests in JavaScript, including behavioral tests from the consumer’s perspective and practical tradeoffs around test design. Examples include testing a counter component and handling race conditions and failures.

Syllabus

Introduction
Confidence
Automation
When should automated tests run
When should automated tests not run
How to make tests fast
Test tools
Tests should be behavioral
Test from the consumer perspective
Testing a counter component
Testing behavior
Testing properties
Testing example
Testing tips
Testing random numbers
Extracting business logic
Race conditions
Failures
Specific Tests
Split Test Cases
Reading Tests
Short Tests
Extract Test Functions
Test Library
Visual Regression Tests
Writing Tests
Hacky Tests
Permit
Use the right tool
Predictive
What tests do you need