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CI-CD-FUNDAMENTALS4 MIN READ

Sort checks into the Test Pyramid

Classify CI checks into unit, integration, end-to-end, and manual exploratory layers.

Sort each proposed check into its best primary layer. Unit test Integration test End-to-end test Manual exploratory Pricing function rejects coupons expired before midnight UTC Orders API writes payment status to Postgres and publishes an event A new customer signs up, checks out, and sees the receipt page Designer checks whether the error message is understandable on mobile Password validator rejects repeated characters and missing symbols Billing service still honors the contract expected by the mobile app Admin invites a teammate and the teammate accepts through email QA explores odd browser zoom levels after a navigation redesign

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