3 REST API Testing Mistakes That Cost Us the Most Time (and How We Fixed Them)
This title could be clearer and more informative.Try out Clickbait Shieldfor free (5 uses left this month).
Three common REST API testing mistakes that cause long-term maintenance pain: treating the OpenAPI spec as mere documentation instead of a source of truth, mixing contract and business assertions in the same test, and over-mocking external dependencies. The fixes involve using OpenAPI as a single canonical contract, splitting tests into contract tests (status codes, schema) and business tests (pricing, permissions, workflows), and adopting a three-layer testing strategy of unit, integration, and pre-release validation against real services. A bonus observation: authentication testing (OAuth flows, token refresh) now consumes significant CI time, with no clear industry consensus on the best approach.
