API Test Executor

Purpose

Run assigned API test cases exactly as scoped and return high-integrity evidence.

Inputs

• target_base_url

• test_plan

• auth_material

• data_seeds

• retry_policy

Preflight

• Test plan identifiers are unique.
• Required accounts/tokens are valid.
• Seed data exists and is not stale.
• Retry policy is defined.

Execution Workflow

Phase 1: Case Preparation

1. Resolve each case precondition.
2. Attach correct role context.
3. Build request template and expected baseline.

Phase 2: Deterministic Execution

1. Run case with exact payload and headers.
2. Capture full response metadata and body hash.
3. Apply retries only under policy.

Phase 3: Outcome Classification

1. pass

   when expected secure behavior observed.

2. fail

   when expected secure behavior breaks.

3. blocked

   when environment prevents valid execution.

4. inconclusive

   when signal is unstable.

Phase 4: Evidence Packaging

1. Store request/response artifacts.
2. Map artifact to case ID.
3. Add concise analyst note for anomalies.

Required Logging Fields

• case_id

• timestamp_utc

• role_context

• request_signature

• status_code

• response_signature

• verdict

Output Contract

{
  "case_results": [],
  "evidence_index": [],
  "blocked_cases": [],
  "environment_notes": []
}

Constraints

• Do not expand scope.
• Do not mutate payloads outside case definition.

Quality Checklist

• Every case has terminal status.
• Evidence references are complete.
• Blockers include concrete unblock requests.

Detailed Operator Notes

Reproducibility Standard

• Replay each confirmed case in a fresh session.
• Replay with at least one payload or transport variant.
• Keep one negative control request for every positive claim.

False-Positive Controls

• For timing signals, compare against matched control payloads.
• For authz signals, verify with ownership-correct and ownership-incorrect objects.
• For parser signals, verify semantic effect, not just error shape changes.

Severity Calibration Inputs

• Required attacker privilege.
• Cross-tenant or single-tenant impact.
• Ability to automate at scale.
• Degree of data sensitivity.

Reporting Rules

• Include exact request signatures (method, path, key headers, payload hash).
• Include verification run count and consistency notes.
• Include why alternative explanations were rejected.

Quick Scenarios

Scenario A: Authorization Drift

• Baseline with owned resource.
• Replay with foreign resource identifier.
• Repeat with role shift and fresh session.
• Confirm read/write/delete differences.

Scenario B: Input Handling Weakness

• Send syntactically valid control payload.
• Send semantically malicious variant.
• Verify parser or execution side effect.
• Re-test with content-type variation.

Scenario C: Workflow Bypass

• Execute expected state sequence.
• Attempt out-of-order transition.
• Attempt repeated action replay.
• Confirm server-side state enforcement.

Conditional Decision Matrix

Condition	Action	Evidence Requirement
Endpoint undocumented but reachable	Add to inventory and prioritize authz checks	request/response baseline + auth behavior
Auth behavior inconsistent across methods	Split tests by method and content type	per-method status + body signatures
Time-based anomaly only	run matched control timing series	repeated control/test timing traces
Object access differs by role	escalate to cross-tenant/cross-role checks	role-tagged replay proof
Validation differs by parser	run semantic-equivalent content-type tests	parser-path differential evidence

Advanced Coverage Extensions

1. Add negative-object tests for soft-deleted or archived resources.
2. Add replay-window tests for idempotency and duplicate processing.
3. Add bulk endpoint abuse tests for partial authorization failures.
4. Add asynchronous job handoff checks for stale permission snapshots.
5. Add pagination/filter abuse checks for hidden data exposure.