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* test: add failing tests for intercept replace_status (#7805) Add integration tests that verify replace_status actually substitutes the HTTP status code sent to the client. Currently these tests fail because replace_status is silently a no-op due to value-receiver boxing and shouldBuffer returning false. Tests added: - TestInterceptReplaceStatusWithMatcher: 500 -> 200 with @err matcher - TestInterceptReplaceStatusWithoutMatcher: 403 -> 200 unconditionally - TestInterceptReplaceStatusNotMatched: 200 passes through unchanged * fix: make intercept replace_status actually substitute the status code Fix #7805: replace_status was silently a no-op because: 1. shouldBuffer returned false when a replacement status was set, causing the original status to be streamed directly to the wire 2. The value-receiver WriteHeader method operated on a stale copy The fix: - shouldBuffer now returns true when replace_status matches, so the response is buffered instead of streamed - After next.ServeHTTP returns, if routes are nil (replace_status only), write the substituted status and buffered body to the client The interceptedResponseHandler.WriteHeader substitution branch is no longer needed for this path since substitution happens post-ServeHTTP. * refactor: remove dead WriteHeader method and resolved TODO The value-receiver WriteHeader on interceptedResponseHandler was unreachable dead code — the substitution is now handled post-ServeHTTP via buffering. Remove it along with the TODO comment that noted status code replacement was unfinished. * style: apply nit suggestions from dunglas code review Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> --------- Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com> |
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