ee59f07c99
All tests pass:
- cargo test --lib transcript: 3 passed
- cargo test --test transcript: 18 passed
Implementation was already complete in commit c6241e3.
No code changes needed - verification only.
71 lines
2.3 KiB
Markdown
71 lines
2.3 KiB
Markdown
# bead bf-1en: transcript.rs Implementation Verification
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## Task
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Implement src/transcript.rs: JSONL transcript parsing
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## Status: VERIFICATION COMPLETE ✓
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The implementation was already complete in commit `c6241e3`:
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- `src/transcript.rs` implements full JSONL parsing
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- `tests/transcript.rs` has 18 comprehensive tests
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## Implementation Summary
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### Core Functionality (`src/transcript.rs`)
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1. **Data Structures**
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- `Usage`: Token counts (input, output, cache_creation, cache_read)
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- `AggregatedUsage`: Running totals across all turns
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- `ContentBlock`: Text, ToolUse, Thinking, Unknown
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- `AssistantMessage`: Message with ID, content blocks, usage
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- `ResultEvent`: Session ID and error status
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- `Event`: Discriminating union (Assistant, User, Result, Unknown)
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- `TranscriptResult`: Final output with text, usage, metadata
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2. **`parse_transcript(path)`**
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- Reads JSONL file line-by-line
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- Extracts text from `ContentBlock::Text` blocks only
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- Deduplicates streaming chunks by `message.id` or usage fingerprint
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- Aggregates token counts across all unique turns
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- Extracts `session_id` and `is_error` from Result events
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- Handles missing files → empty result
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- Silently skips malformed lines
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3. **`read_transcript(path, last_assistant_message)`**
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- Retry loop: 40 × 50ms = 2s budget
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- Handles Stop-before-JSONL race window
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- Falls back to `last_assistant_message` if retries exhausted
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- Returns error if both are empty
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### Test Coverage (`tests/transcript.rs`)
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All 18 tests pass:
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- Single turn, single text block
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- Multi-block content (text + tool_use + thinking)
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- Multi-turn with unique keys
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- Streaming dedup (5 chunks → 1 turn)
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- Token aggregation (45 turns)
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- Missing/null cache tokens
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- Unknown event types and content blocks
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- Malformed JSONL lines
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- Empty files
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- Usage-fingerprint fallback (no message.id)
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- Result event fields
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- Fallback to last_assistant_message
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- Race conditions (MOCK_DELAY_JSONL)
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## Verification
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```bash
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$ cargo test --lib transcript
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test result: ok. 3 passed
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$ cargo test --test transcript
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test result: ok. 18 passed
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```
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All tests pass. Implementation matches AGENTS.md specification.
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## Bead Closure
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The bead is closed after this verification. No code changes were needed as the implementation was already complete.
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