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TEST_EXEC_TIME.md

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Testing Execution Time Tracking

Quick Test

# 1. Install latest version
cargo install --path .

# 2. Run a few commands to populate data
rtk git status
rtk ls .
rtk grep "tracking" src/

# 3. Check gain stats (should show execution times)
rtk gain

# Expected output:
# Total exec time:   XX.Xs (avg XXms)
# By Command table should show Time column

Detailed Test Scenarios

1. Basic Time Tracking

# Run commands with different execution times
rtk git log -10          # Fast (~10ms)
rtk cargo test           # Slow (~300ms)
rtk vitest run           # Very slow (seconds)

# Verify times are recorded
rtk gain
# Should show different avg times per command

2. Daily Breakdown

rtk gain --daily

# Expected:
# Date column + Time column showing avg time per day
# Today should have non-zero times
# Historical data shows 0ms (no time recorded)

3. Export Formats

JSON Export:

rtk gain --daily --format json | jq '.summary'

# Should include:
# "total_time_ms": 12345,
# "avg_time_ms": 67

CSV Export:

rtk gain --daily --format csv

# Headers should include:
# date,commands,input_tokens,...,total_time_ms,avg_time_ms

4. Multiple Commands

# Run 10 commands and measure total time
for i in {1..10}; do rtk git status; done

rtk gain
# Total exec time should be ~10-50ms (10 × 1-5ms)

Verification Checklist

  • rtk gain shows "Total exec time: X (avg Yms)"
  • By Command table has "Time" column
  • rtk gain --daily shows time per day
  • JSON export includes total_time_ms and avg_time_ms
  • CSV export has time columns
  • New commands show realistic times (not 0ms)
  • Historical data preserved (old entries show 0ms)

Database Schema Verification

# Check SQLite schema includes exec_time_ms
sqlite3 ~/.local/share/rtk/history.db "PRAGMA table_info(commands);"

# Should show:
# ...
# 7|exec_time_ms|INTEGER|0|0|0

Performance Impact

The timer adds negligible overhead:

  • Instant::now() → ~10-50ns
  • elapsed() → ~10-50ns
  • SQLite insert with extra column → ~1-5µs

Total overhead: < 0.1ms per command