Running Tests

Test suites can sometimes take a very long time to run, consume lots of system
resources, and generate lots of output. To save time and preserve your context,
follow this simple guide.

When to Use This Skill

✅ Use if:

• Running any test command (npm test, node --test, pytest, etc.)
• Expecting more than 5 lines of output
• Want to preserve context tokens for further analysis

❌ Don't use if:

• Running a single quick test file (< 1 second)
• Already redirecting output manually

Guidelines

• Always redirect test output to a file!

npm test > /tmp/test-output.txt 2>&1

• Analyze that file as needed after the run is finished

tail -n20 /tmp/test-output.txt

wc -l /tmp/test-output.txt

grep 'fail' /tmp/test-output.txt

Default Pattern

Every test run should follow this pattern:

npm test > /tmp/test-output.txt 2>&1
tail -20 /tmp/test-output.txt