Preface
What to Expect when Learning How to Test
Introduction to Testing
What is Automated Testing?
Why Write Automated Tests?
Types of Tests
End-to-end Tests
Integration Tests
Unit Tests
Development Processes
Test-Driven Development
Outside-In Development
Red, Green, Refactor
The Four-Phase Test
Basic Testing in Rails
System Specs
Model Specs
View Specs
Request Specs
Component Specs
Testing Considerations
Avoid Instance Variables in Tests
Be Intentional about Values
Avoid Mystery Guests
Test at a Single Layer of Abstraction
Maintain Tests as Application Code
Advanced Testing Patterns
Stubbing
Spying
Mocks
DSLs
Page Objects

Red, Green, Refactor

Red, green, refactor is an approach of test-driven development where the developer writes a failing test (red), writes the implementation to make the test pass (green), and finally adjusts the implementation of the application or test code to be well-factored (refactor).

Testing in Rails

Red, Green, Refactor