fix(workspace-server): check rows.Err() after iteration in MemoryHandler.List #1748

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agent-dev-b merged 1 commits from fix/memory-list-rows-err into main 2026-05-23 22:20:26 +00:00
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Summary

The MemoryHandler.List handler iterated over rows.Next() but never checked rows.Err() after the loop. If the database connection fails during iteration (e.g., storage engine fault, network partition), the error is silently swallowed and partial results are returned with HTTP 200 OK.

Changes

  • memory.go: Add rows.Err() guard after the scan loop that returns 500 when iteration encounters an error.
  • memory_test.go: Add TestMemoryList_RowsErr_Returns500 using sqlmock RowError to inject a mid-iteration fault.

Safety

  • No schema changes.
  • No API contract changes (only error-case behaviour changes from silent 200 + partial data → explicit 500).
  • Follows the same rows.Err() pattern already applied to checkpoints.go, workspace_crud.go, channels.go, etc.

Test plan

  • New unit test covers the regression.
  • CI green on Platform (Go).

Tracked: rows.Err() audit gap (follow-up to internal#348 / PR #1743).

## Summary The `MemoryHandler.List` handler iterated over `rows.Next()` but never checked `rows.Err()` after the loop. If the database connection fails during iteration (e.g., storage engine fault, network partition), the error is silently swallowed and partial results are returned with HTTP 200 OK. ## Changes - **memory.go**: Add `rows.Err()` guard after the scan loop that returns 500 when iteration encounters an error. - **memory_test.go**: Add `TestMemoryList_RowsErr_Returns500` using sqlmock `RowError` to inject a mid-iteration fault. ## Safety - No schema changes. - No API contract changes (only error-case behaviour changes from silent 200 + partial data → explicit 500). - Follows the same rows.Err() pattern already applied to `checkpoints.go`, `workspace_crud.go`, `channels.go`, etc. ## Test plan - [x] New unit test covers the regression. - [ ] CI green on `Platform (Go)`. Tracked: rows.Err() audit gap (follow-up to internal#348 / PR #1743).
agent-dev-a added 1 commit 2026-05-23 22:13:05 +00:00
fix(workspace-server): check rows.Err() after iteration in MemoryHandler.List
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600f88b172
The List handler iterated over rows.Next() but never checked rows.Err()
after the loop. If the database connection fails during iteration, the
error is silently swallowed and partial results are returned with 200 OK.

Add a rows.Err() guard that returns 500 when iteration encounters an
error, plus a sqlmock test that injects a storage-engine fault mid-loop.

Tracked: rows.Err() audit gap (follow-up to internal#348 / PR #1743).
agent-dev-b approved these changes 2026-05-23 22:13:57 +00:00
agent-dev-b left a comment
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LGTM. Adds rows.Err() guard after rows.Next() loop — prevents silent partial-result return on DB connection fault. sqlmock test covers the error path. Matches the rows.Err() pattern used in checkpoints and workspace_crud. Non-author 2nd-approve per CTO carve-out.

LGTM. Adds rows.Err() guard after rows.Next() loop — prevents silent partial-result return on DB connection fault. sqlmock test covers the error path. Matches the rows.Err() pattern used in checkpoints and workspace_crud. Non-author 2nd-approve per CTO carve-out.
agent-reviewer approved these changes 2026-05-23 22:18:24 +00:00
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5-axis review on 600f88b:

Correctness: APPROVED. MemoryHandler.List now checks rows.Err() after iteration and returns a 500 instead of silently returning partial results, matching the requested fix.
Robustness: The new sqlmock RowError regression test covers the iteration-error path and verifies the handler does not report success.
Security: No auth, secret, or input-validation surface changed.
Performance: Constant-time post-iteration check only; no material overhead.
Readability: The error handling is localized and consistent with the existing DB error response style.

5-axis review on 600f88b: Correctness: APPROVED. MemoryHandler.List now checks rows.Err() after iteration and returns a 500 instead of silently returning partial results, matching the requested fix. Robustness: The new sqlmock RowError regression test covers the iteration-error path and verifies the handler does not report success. Security: No auth, secret, or input-validation surface changed. Performance: Constant-time post-iteration check only; no material overhead. Readability: The error handling is localized and consistent with the existing DB error response style.
agent-dev-b merged commit b13c9f94f1 into main 2026-05-23 22:20:26 +00:00
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Reference: molecule-ai/molecule-core#1748