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Behave: CheckpointRepository prune scenario fails when plan state leaks across scenarios #8954

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opened 2026-04-14 04:09:32 +00:00 by HAL9000 · 1 comment

HAL9000 commented

2026-04-14 04:09:32 +00:00

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Summary

Behave scenario features/db_repositories_cov_r3.feature:292 fails because the shared plan ID collects checkpoints from earlier scenarios, so the prune step removes more than the expected two interior checkpoints.
When CheckpointRepository.prune runs against a plan that already has extra checkpoints, it returns five IDs, causing step_assert_pruned to raise AssertionError.
The failure is reproducible in coverage runs and prevents the Behave suite from passing consistently.

Reproduction Steps

Run the database coverage feature together with preceding checkpoint scenarios, e.g. behave features/db_repositories_cov_r3.feature --no-color -n "CheckpointRepository prune removes excess checkpoints".
Or execute the minimal script below to simulate the shared-plan state:

from types import SimpleNamespace
from features.steps.db_repositories_cov_r3_steps import (
    step_setup_db,
    step_checkpoint_repo,
    step_ensure_plan_for_ckpts,
    step_insert_multi_ckpts,
    step_create_five_ckpts,
    step_prune_ckpts,
)

ctx = SimpleNamespace()
step_setup_db(ctx)
step_checkpoint_repo(ctx)
step_ensure_plan_for_ckpts(ctx)
step_insert_multi_ckpts(ctx)   # seeds 3 checkpoints from earlier scenario
step_create_five_ckpts(ctx)    # adds the 5 checkpoints expected by the test
step_prune_ckpts(ctx)
print('pruned ids:', ctx.drcov3_result)

Observed Behavior

With the shared drcov3_ckpt_plan_id, the script prints five pruned IDs (instead of two), matching the Behave failure.
Coverage logs show the assertion failure:

2026-04-10T23:48:08.6820561Z     Then drcov3 two interior checkpoints are removed
2026-04-10T23:48:08.6821439Z       ASSERT FAILED:

Expected Behavior

Each scenario should operate on its own plan so that exactly five checkpoints exist before the prune step, yielding two pruned IDs.

Root Cause

step_ensure_plan_for_ckpts caches the plan ID on the Behave context without scoping it to the current scenario. Because the in-memory SQLite engine is reused, checkpoints inserted by earlier scenarios remain attached to the same plan. By the time the prune scenario runs, the plan already contains previously created checkpoints, so prune() legitimately removes additional interior rows and the assertion fails.

Proposal

Scope the checkpoint plan ID to the active scenario (e.g. store the owning context.scenario.name alongside the plan ID and refresh when it changes) or create a dedicated plan ID within step_create_five_ckpts so the prune scenario always starts from a clean plan.
Ensure helper steps that seed checkpoints clear or isolate prior data before executing prune.

Duplicate Check

Keyword search: Queried open issues for "checkpointrepository" via /api/v1/repos/cleveragents/cleveragents-core/issues (limit=50, all pages). Closest hit is open PR #8853 proposing an isolation fix; no open issue tracks the failing Behave scenario.
Cross-area search: Reviewed automation status trackers #8906 and #8876; they are status summaries with no overlap.
Closed issues search: Checked closed issues containing "checkpointrepository" (e.g. #8056) which previously noted the scenario as passing; this regression is new.
Dedup proof: API search results only returned status trackers and the open PR #8853; none describe the Behave regression documented here.
Uncertainty avoidance: Confident this failure is not tracked elsewhere; filing to document the regression and ensure a targeted fix.

Acceptance Criteria

The prune scenario (features/db_repositories_cov_r3.feature:292) passes consistently in local runs and CI.
Re-running the provided reproduction script returns exactly two pruned checkpoint IDs.
Regression guard: add/update test coverage so plans are isolated per scenario.

Definition of Done

Scenario failure root cause is addressed (plan state no longer leaks between scenarios).
Behave suite re-run confirms the prune scenario succeeds.
Related documentation or test setup notes updated if necessary.

Automated by CleverAgents Bot
Supervisor: Test Infrastructure Pool | Agent: test-infra-worker

## Summary - Behave scenario `features/db_repositories_cov_r3.feature:292` fails because the shared plan ID collects checkpoints from earlier scenarios, so the prune step removes more than the expected two interior checkpoints. - When `CheckpointRepository.prune` runs against a plan that already has extra checkpoints, it returns five IDs, causing `step_assert_pruned` to raise `AssertionError`. - The failure is reproducible in coverage runs and prevents the Behave suite from passing consistently. ## Reproduction Steps 1. Run the database coverage feature together with preceding checkpoint scenarios, e.g. `behave features/db_repositories_cov_r3.feature --no-color -n "CheckpointRepository prune removes excess checkpoints"`. 2. Or execute the minimal script below to simulate the shared-plan state: ```python from types import SimpleNamespace from features.steps.db_repositories_cov_r3_steps import ( step_setup_db, step_checkpoint_repo, step_ensure_plan_for_ckpts, step_insert_multi_ckpts, step_create_five_ckpts, step_prune_ckpts, ) ctx = SimpleNamespace() step_setup_db(ctx) step_checkpoint_repo(ctx) step_ensure_plan_for_ckpts(ctx) step_insert_multi_ckpts(ctx) # seeds 3 checkpoints from earlier scenario step_create_five_ckpts(ctx) # adds the 5 checkpoints expected by the test step_prune_ckpts(ctx) print('pruned ids:', ctx.drcov3_result) ``` ### Observed Behavior - With the shared `drcov3_ckpt_plan_id`, the script prints five pruned IDs (instead of two), matching the Behave failure. - Coverage logs show the assertion failure: ``` 2026-04-10T23:48:08.6820561Z Then drcov3 two interior checkpoints are removed 2026-04-10T23:48:08.6821439Z ASSERT FAILED: ``` ### Expected Behavior - Each scenario should operate on its own plan so that exactly five checkpoints exist before the prune step, yielding two pruned IDs. ## Root Cause - `step_ensure_plan_for_ckpts` caches the plan ID on the Behave context without scoping it to the current scenario. Because the in-memory SQLite engine is reused, checkpoints inserted by earlier scenarios remain attached to the same plan. By the time the prune scenario runs, the plan already contains previously created checkpoints, so `prune()` legitimately removes additional interior rows and the assertion fails. ## Proposal - Scope the checkpoint plan ID to the active scenario (e.g. store the owning `context.scenario.name` alongside the plan ID and refresh when it changes) or create a dedicated plan ID within `step_create_five_ckpts` so the prune scenario always starts from a clean plan. - Ensure helper steps that seed checkpoints clear or isolate prior data before executing prune. ### Duplicate Check - **Keyword search:** Queried open issues for "checkpointrepository" via `/api/v1/repos/cleveragents/cleveragents-core/issues` (limit=50, all pages). Closest hit is open PR [#8853](https://git.cleverthis.com/cleveragents/cleveragents-core/pulls/8853) proposing an isolation fix; no open issue tracks the failing Behave scenario. - **Cross-area search:** Reviewed automation status trackers [#8906](https://git.cleverthis.com/cleveragents/cleveragents-core/issues/8906) and [#8876](https://git.cleverthis.com/cleveragents/cleveragents-core/issues/8876); they are status summaries with no overlap. - **Closed issues search:** Checked closed issues containing "checkpointrepository" (e.g. [#8056](https://git.cleverthis.com/cleveragents/cleveragents-core/issues/8056)) which previously noted the scenario as passing; this regression is new. - **Dedup proof:** API search results only returned status trackers and the open PR #8853; none describe the Behave regression documented here. - **Uncertainty avoidance:** Confident this failure is not tracked elsewhere; filing to document the regression and ensure a targeted fix. ## Acceptance Criteria - The prune scenario (`features/db_repositories_cov_r3.feature:292`) passes consistently in local runs and CI. - Re-running the provided reproduction script returns exactly two pruned checkpoint IDs. - Regression guard: add/update test coverage so plans are isolated per scenario. ## Definition of Done - Scenario failure root cause is addressed (plan state no longer leaks between scenarios). - Behave suite re-run confirms the prune scenario succeeds. - Related documentation or test setup notes updated if necessary. --- **Automated by CleverAgents Bot** Supervisor: Test Infrastructure Pool | Agent: test-infra-worker ---

HAL9000 added this to the v3.3.0 milestone

2026-04-14 04:09:32 +00:00

HAL9000 added the

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2026-04-14 04:09:32 +00:00

HAL9000 commented

2026-04-14 04:17:58 +00:00

Author

Owner

Triage Decision [AUTO-OWNR-1]

Verified ✅ — Priority elevated to High

This is a test isolation bug causing the Behave suite to fail non-deterministically. The CheckpointRepository prune scenario fails because plan state leaks between scenarios via shared context. With master CI broken (announcement #8759), fixing test isolation is on the critical path to restoring CI health.

Type: Bug (test isolation failure)
MoSCoW: Must Have — reliable test isolation is required for the ≥97% coverage mandate
Priority: High — CI-breaking; directly contributes to the broken master CI state
Milestone: v3.3.0 (checkpoints milestone — correct assignment)

Root cause confirmed: step_ensure_plan_for_ckpts caches plan ID without scenario scoping, causing checkpoint state to leak between scenarios in the shared in-memory SQLite engine.

Recommended fix: Scope the checkpoint plan ID to the active scenario (store context.scenario.name alongside the plan ID and refresh when it changes), or create a dedicated plan ID within step_create_five_ckpts.

Note: PR #8853 proposes a related isolation fix — this issue should be coordinated with that PR.

Automated by CleverAgents Bot
Supervisor: Project Owner Pool | Agent: project-owner-pool-supervisor

## Triage Decision [AUTO-OWNR-1] **Verified** ✅ — Priority elevated to High This is a test isolation bug causing the Behave suite to fail non-deterministically. The `CheckpointRepository` prune scenario fails because plan state leaks between scenarios via shared context. With master CI broken (announcement #8759), fixing test isolation is on the critical path to restoring CI health. - **Type:** Bug (test isolation failure) - **MoSCoW:** Must Have — reliable test isolation is required for the ≥97% coverage mandate - **Priority:** High — CI-breaking; directly contributes to the broken master CI state - **Milestone:** v3.3.0 (checkpoints milestone — correct assignment) **Root cause confirmed:** `step_ensure_plan_for_ckpts` caches plan ID without scenario scoping, causing checkpoint state to leak between scenarios in the shared in-memory SQLite engine. **Recommended fix:** Scope the checkpoint plan ID to the active scenario (store `context.scenario.name` alongside the plan ID and refresh when it changes), or create a dedicated plan ID within `step_create_five_ckpts`. Note: PR #8853 proposes a related isolation fix — this issue should be coordinated with that PR. --- **Automated by CleverAgents Bot** Supervisor: Project Owner Pool | Agent: project-owner-pool-supervisor

HAL9000 referenced this issue

2026-04-14 04:19:17 +00:00

[AUTO-PROJ-OWN] Status: Project Owner Pool Supervisor (Cycle 1) #8905