# E2E Non-Functional Tests Template

Save as `PLANS_DIR/integration_tests/non_functional_tests.md`.

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```markdown
# E2E Non-Functional Tests

## Performance Tests

### NFT-PERF-01: [Test Name]

**Summary**: [What performance characteristic this validates]
**Traces to**: AC-[ID]
**Metric**: [what is measured — latency, throughput, frame rate, etc.]

**Preconditions**:
- [System state, load profile, data volume]

**Steps**:

| Step | Consumer Action | Measurement |
|------|----------------|-------------|
| 1 | [action] | [what to measure and how] |

**Pass criteria**: [specific threshold — e.g., p95 latency < 400ms]
**Duration**: [how long the test runs]

---

## Resilience Tests

### NFT-RES-01: [Test Name]

**Summary**: [What failure/recovery scenario this validates]
**Traces to**: AC-[ID]

**Preconditions**:
- [System state before fault injection]

**Fault injection**:
- [What fault is introduced — process kill, network partition, invalid input sequence, etc.]

**Steps**:

| Step | Action | Expected Behavior |
|------|--------|------------------|
| 1 | [inject fault] | [system behavior during fault] |
| 2 | [observe recovery] | [system behavior after recovery] |

**Pass criteria**: [recovery time, data integrity, continued operation]

---

## Security Tests

### NFT-SEC-01: [Test Name]

**Summary**: [What security property this validates]
**Traces to**: AC-[ID], RESTRICT-[ID]

**Steps**:

| Step | Consumer Action | Expected Response |
|------|----------------|------------------|
| 1 | [attempt unauthorized access / injection / etc.] | [rejection / no data leak / etc.] |

**Pass criteria**: [specific security outcome]

---

## Resource Limit Tests

### NFT-RES-LIM-01: [Test Name]

**Summary**: [What resource constraint this validates]
**Traces to**: AC-[ID], RESTRICT-[ID]

**Preconditions**:
- [System running under specified constraints]

**Monitoring**:
- [What resources to monitor — memory, CPU, GPU, disk, temperature]

**Duration**: [how long to run]
**Pass criteria**: [resource stays within limit — e.g., memory < 8GB throughout]
```

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## Guidance Notes

- Performance tests should run long enough to capture steady-state behavior, not just cold-start.
- Resilience tests must define both the fault and the expected recovery — not just "system should recover."
- Security tests at E2E level focus on black-box attacks (unauthorized API calls, malformed input), not code-level vulnerabilities.
- Resource limit tests must specify monitoring duration — short bursts don't prove sustained compliance.