response-mutate

response-mutate

Demonstrates fault.ResponseMutate via adapter/http.MutateResponse.

A test server returns a valid 200 OK JSON body ({"name":"alice"}). The chaos rule rewrites the successful response body to malformed JSON before the client sees it, exercising the caller's decode-failure fallback: FetchName returns "unknown" instead of panicking or returning a bogus value.

go run .        # prints: unknown
go test ./...   # asserts the degraded path and the clean (no-chaos) path