Before and After: Copilot Test Request
Rewrite a GitHub Copilot test request so the generated tests target behavior and edge cases rather than line coverage only.
Same function, two Copilot test requests. What changed? Before: file-focused request. After: behavior-focused request. The ask changed from "add tests" to a behavior contract, which gives Copilot a target beyond copying implementation structure. Edge cases were named up front, which steers generation toward release risk rather than only the happy path. The review rule changed to "assert outcomes, not helpers," which protects tests from becoming brittle mirrors of private code. Tests generated from behavior are easier to trust than tests generated from proximity. Copilot-assisted test design You moved from coverage theater to evidence about behavior. The after state should make…
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