PLAN-01 Summary: feed-fetcher-tests

Status: COMPLETE

Commit

• Hash: 8d4e8d3
• Message: test(feed-fetcher): close coverage gaps for retry, errors, headers, entries, helpers [dev-plan01]
• Files changed: 1 file, 734 insertions

Tasks Completed

Task 1: Test retry strategy and circuit breaker transitions

• Added tests for reset_retry_state!, apply_retry_strategy!, circuit breaker open/close
• Verified first timeout sets fetch_retry_attempt to 1
• Verified exhausting retries opens circuit (sets fetch_circuit_opened_at, fetch_circuit_until)
• Verified successful fetch resets retry state
• Tested RetryPolicy error handling fallback

Task 2: Test Faraday error wrapping and connection failures

• Tested Faraday::ConnectionFailed raises ConnectionError with original_error preserved
• Tested Faraday::SSLError raises ConnectionError
• Tested Faraday::ClientError with response hash builds HTTPError via build_http_error_from_faraday
• Tested generic Faraday::Error raises FetchError
• Tested non-Faraday StandardError wrapped in UnexpectedResponseError

Task 3: Test Last-Modified header handling and request headers

• Tested If-Modified-Since header sent when source.last_modified is set
• Tested Last-Modified response header parsed and stored on source
• Tested malformed Last-Modified headers silently ignored
• Tested custom_headers from source passed through to request
• Tested ETag and Last-Modified preserved on 304 responses

Task 4: Test entry processing edge cases and error normalization

• Tested feed without entries returns zero counts
• Tested Events.run_item_processors called for each entry
• Tested Events.after_item_created called only for created items
• Tested normalize_item_error extracts guid via entry_id/id fallbacks
• Tested safe_entry_title returns nil for entries without title

Task 5: Test jitter, interval helpers, and metadata management

• Tested jitter_offset returns 0 when interval_seconds <= 0
• Tested jitter_offset uses jitter_proc when provided
• Tested body_digest returns nil for blank body, SHA256 for non-blank
• Tested updated_metadata preserves existing metadata
• Tested configured_seconds, extract_numeric edge cases

Deviations

None -- plan executed as specified.

Verification Results

Check	Result
bin/rails test test/lib/source_monitor/fetching/feed_fetcher_test.rb	All tests pass
bin/rails test	760 runs, 2626 assertions, 0 failures, 0 errors, 0 skips

Success Criteria

• 48 new tests added (734 lines)
• All retry/circuit breaker branches tested
• All Faraday error wrapping branches tested
• All header handling branches tested
• Entry processing and error normalization branches tested
• Jitter, interval helpers, and metadata management tested
• REQ-01 substantially satisfied