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End to end testing across many microservices is typically
ASlow, brittle and kept to a thin top
BThe largest portion of any test pyramid
CCheaper than unit tests in most cases
DAlways reliable across environments
Answer & Solution
Correct answer: A. Slow, brittle and kept to a thin top
E2E tests in a microservices system are expensive: provisioning many services, slow runs, flaky due to async timing and shared state. The test pyramid pushes most coverage to fast unit and component tests; E2E is a thin top layer.
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