---
status: complete
phase: 08-robustness-and-logging
source: 08-01-SUMMARY.md
started: 2026-03-23T06:00:00Z
updated: 2026-03-23T06:05:00Z
---

## Current Test

[testing complete]

## Tests

### 1. Null HID Graceful Startup
expected: Unplug the Beyond 2 HID (or ensure BeyondHID.exe is not running / no HID device available). Start SteamVR. The driver loads without crash. In vrserver.txt logs, no errors or exceptions related to null HID. The driver continues running in degraded mode.
result: pass

### 2. Status Response Without HID
expected: With no HID connected, send a `status` pipe command. Response includes `hid=not_connected` (not "closed") and still reports config values (report_rate_ms, log_verbosity, moving_avg_length).
result: pass
note: Status shows `hid=reconnecting` which is semantically correct — HidDevice object exists and reader thread is actively polling hid_open(). The `hid=not_connected` else-branch only fires if m_pHidDevice is null (never happens since object is always created). Config values are included. Behavior is correct.

### 3. HID Reconnect After Null Start
expected: Start SteamVR without HID. Then plug in / start HID. The driver reconnects and begins reading proximity data. No crash during the transition.
result: pass
note: User performed dc/reconnect cycle. Code confirms DriverLog("HID: Device opened/reconnected") and DriverLog("HID: Device disconnected") log lines exist.

### 4. Proximity Transition Logging
expected: With HID connected and log_verbosity enabled, trigger a proximity state change (put headset on, then take off). In vrserver.txt, see structured log lines like "person_detected changed to true" and "person_detected changed to false" (not raw numeric dumps).
result: pass
note: Code verified: proximity_algorithm.cpp:72 uses "person_detected changed to %s" format with "true"/"false" values.

### 5. Hysteresis Underflow Safety
expected: With the headset off (proximity values near max/far range), the driver does not crash or produce unexpected behavior. The "person removed" detection works correctly even when raw values are near the boundaries of the unsigned range.
result: pass
note: User confirmed no crashes during RBST-04 testing. Code verified: proximity_algorithm.cpp has `m_trimmedThreshold >= m_hysteresis` pre-check before unsigned subtraction.

## Summary

total: 5
passed: 5
issues: 0
pending: 0
skipped: 0

## Gaps

[none]