---
phase: 08-quality-polish-and-test-coverage
plan: 02
subsystem: testing
tags: [clippy, proptest, ttl, overflow, e2e, continuation, workflow]

# Dependency graph
requires:
  - phase: 06-workflow-continuation
    provides: "handle_workflow_continuation in TaskRouterImpl, continuation intercept in ServerCore"
  - phase: 07-integration-and-end-to-end-validation
    provides: "workflow_integration.rs test infrastructure, build_failing_test_server()"
provides:
  - "Zero clippy warnings on pmcp-tasks (including tests)"
  - "Safe TTL overflow handling via i64::try_from in TaskRecord::new"
  - "E2E continuation test with ConditionalFetchDataTool (same-tool-different-args pattern)"
  - "Full lifecycle test: workflow invocation, handoff, continuation, store verification"
affects: []

# Tech tracking
tech-stack:
  added: []
  patterns:
    - "i64::try_from(u64).ok()? for safe integer narrowing (replaces `as i64` silent wrapping)"
    - "ConditionalFetchDataTool: same-tool-different-args pattern for E2E testing"
    - "CallToolResult-aware assertions: continuation stores wrapped format, not raw tool output"

key-files:
  created: []
  modified:
    - "crates/pmcp-tasks/src/router.rs"
    - "crates/pmcp-tasks/src/domain/record.rs"
    - "crates/pmcp-tasks/tests/property_tests.rs"
    - "crates/pmcp-tasks/tests/workflow_integration.rs"

key-decisions:
  - "CallToolResult format preserved in continuation store (not unwrapped) -- matches ServerCore behavior"
  - "30-day TTL ceiling (2_592_000_000ms) for property tests keeps inputs realistic while production code handles extremes defensively"

patterns-established:
  - "ConditionalFetchDataTool pattern: one tool implementation that fails or succeeds based on arguments, enabling same-tool-different-args E2E testing"

requirements-completed: []

# Metrics
duration: 9min
completed: 2026-02-23
---

# Phase 8 Plan 2: Quality Polish Summary

**Clippy warning fix, safe TTL overflow via i64::try_from, constrained property test range, and E2E continuation test with ConditionalFetchDataTool verifying _workflow.result and _workflow.progress**

## Performance

- **Duration:** 9 min
- **Started:** 2026-02-23T19:55:00Z
- **Completed:** 2026-02-23T20:04:27Z
- **Tasks:** 2
- **Files modified:** 4

## Accomplishments
- Fixed clippy `unnecessary_get_then_check` lint in router.rs test assertion
- Replaced silent `ms as i64` wrapping with `i64::try_from(ms).ok()?` in TaskRecord::new for safe TTL overflow handling (values exceeding i64::MAX now treated as "never expires")
- Constrained property test TTL range from u64::MAX to 30 days (2,592,000,000ms) for realistic inputs; deleted proptest regression file
- Added ConditionalFetchDataTool and build_conditional_test_server() for same-tool-different-args E2E testing
- Rewrote test_full_lifecycle_happy_path Stage 2: workflow invokes with "non_existent_key" (fails), client continuation with "existing_key" (succeeds), verifies _workflow.result.fetch and _workflow.progress step completion in task store

## Task Commits

Each task was committed atomically:

1. **Task 1: Fix clippy warning and property test TTL overflow** - `332f4c7` (fix)
2. **Task 2: Add E2E continuation test with succeeding tool** - `86167f9` (feat)

## Files Created/Modified
- `crates/pmcp-tasks/src/router.rs` - Fixed clippy warning: assert!(!contains_key()) instead of assert!(get().is_none())
- `crates/pmcp-tasks/src/domain/record.rs` - Safe TTL overflow: i64::try_from(ms).ok()? instead of ms as i64
- `crates/pmcp-tasks/tests/property_tests.rs` - Constrained TTL range to 30 days max (2_592_000_000u64)
- `crates/pmcp-tasks/tests/workflow_integration.rs` - Added ConditionalFetchDataTool, build_conditional_test_server(), rewrote test_full_lifecycle_happy_path with Stage 2 continuation

## Decisions Made
- **CallToolResult format in store:** The continuation intercept serializes the full CallToolResult (with content array and isError flag) into _workflow.result.fetch, not the raw tool output. Test assertions parse the text field within content to verify the inner tool output. This matches ServerCore's actual behavior.
- **Constrained range over full range:** Even though production code now handles u64::MAX safely, the property test uses a 30-day max to keep test inputs realistic and meaningful per the locked decision.

## Deviations from Plan

### Auto-fixed Issues

**1. [Rule 3 - Blocking] Stale build cache caused phantom compilation errors**
- **Found during:** Task 1 verification (cargo test)
- **Issue:** Initial `cargo test` showed compilation errors in prompt_handler.rs and task_prompt_handler.rs referencing old code patterns that no longer exist in the source files. Stale incremental compilation cache from prior plan 08-01 work.
- **Fix:** Ran `cargo clean --package pmcp` to clear cached artifacts. Subsequent build succeeded.
- **Files modified:** None (build cache only)
- **Verification:** Clean build compiled without errors

**2. [Rule 1 - Bug] E2E test assertions expected raw tool output but got CallToolResult wrapper**
- **Found during:** Task 2 (E2E continuation test)
- **Issue:** Plan specified verifying `fetch_result["data"] == "raw_content"` directly, but the continuation intercept stores the serialized CallToolResult (which wraps output in `content[0].text`), not the raw JSON value.
- **Fix:** Adjusted assertions to parse the CallToolResult format: access `content[0].text`, parse as JSON, then verify inner fields.
- **Files modified:** crates/pmcp-tasks/tests/workflow_integration.rs
- **Verification:** Test passes with correct CallToolResult-aware assertions
- **Committed in:** 86167f9 (Task 2 commit)

---

**Total deviations:** 2 auto-fixed (1 blocking, 1 bug)
**Impact on plan:** Both fixes necessary for correct test execution. No scope creep.

## Issues Encountered
None beyond the deviations documented above.

## User Setup Required
None - no external service configuration required.

## Next Phase Readiness
- All v1.1 milestone audit items addressed: clippy clean, property tests passing, E2E continuation coverage complete
- FINDING-02 (E2E continuation coverage gap) is closed
- Ready for any remaining Phase 8 plans or milestone completion

## Self-Check: PASSED

All files verified present, all commits verified in git log.

---
*Phase: 08-quality-polish-and-test-coverage*
*Completed: 2026-02-23*
