Testing Strategies.

Testing methodology, pyramids, and strategy. Covers 12 sub-skills.

• Testing Strategies · 1 of 3

  Test Organization & Naming

  Why should tests be runnable in any order?

  AStrict ordering improves snapshot readabilityBIt primarily reduces assertion countCIt is only needed for end-to-end test suitesDIndependence enables reliable parallel runs

• Testing Strategies · 2 of 3

  Mutation Testing

  Which mutation operator replaces > with >=?

  AArithmetic operator mutationBReturn statement mutationCBoolean literal mutationDRelational operator mutation

• Testing Strategies · 3 of 3

  Integration Testing

  What setup lets integration tests catch contract and persistence regressions?

  AMock all external boundaries and database layersBReuse one long-lived shared test environment alwaysCRun against real infrastructure in ephemeral environmentsDTest only the API handlers, with no storage layer wired in at all