Difference between unit and integration tests and CI pipeline placement
WHAT IT TESTS: Grasp of the testing pyramid and CI gating. ANSWER OUTLINE: Unit tests isolate code and run fast in the build stage; integration tests verify real wiring later. Target 70 percent unit tests. RED FLAG: Claiming both run together or cost the same.
WHAT IT TESTS: Whether you understand test isolation, execution speed, and CI stage gating. ANSWER OUTLINE: Unit tests validate isolated functions or classes without external dependencies, run in seconds, and execute in the build stage immediately after compilation; integration tests validate service wiring and data flow against real databases or APIs, run slower, and belong in a post-build stage with provisioned environments. A healthy pyramid targets roughly 70 percent unit tests.
Read the original → docs.aws.amazon.com
- #ci/cd
- #testing
- #unit-tests
- #integration-tests
- #pipeline
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