The Testing Pyramid

Testing Pyramid

How much should I do of each (unit, integration, system testing)

• Diagram → Focussed on cost

Unit testing

• A unit can be a method or consist of multiple methods → achieve one single logical purpose
• Advantages
• Disadvantages
• When to write

System Testing

• Run the entire software system; with database, front-end and all other components
• Alternative name is Black Box Testing
• Advantages
• Disadvantages
• When to write

Integration Testing

• Used when we need something more integrated ( or less isolated ) than a unit test but without the need of exercising the entire system
• Test multiple components of a system together
• Advantages
• Disadvantages