Testing

• The Pareto Principle
• Best practice of writing unit tests
  • Don't test that Vue works
    • Examples: Checking that a data, computed, etc property exists
  • Primarily stick with shallow rendering
    • Otherwise a problem in a common component can break many tests
  • Build unit tests into generators
• Traditional Testing Model
  • Unit tests are great, but they're often not the 20% we should be focusing on
• The Two Tests to Focus On
  • Can the user login?
  • Can the user pay us?
• Best practice for writing e2e tests
  • Don't maintain state between tests
    • Tests should be able to run independently of one another
  • Don't select elements with classes
    • Think from the user's perspective, or select elements by their intent