bun-test

/bun:test

Run tests using Bun's built-in test runner with optimized output.

When to Use This Skill

Scenario	Use this skill	Alternative
Quickly running tests with compact output	Yes	N/A
Running a specific test file or pattern	Yes	N/A
Running tests with coverage	Yes	N/A
Configuring test runner options in detail	No - use bun-development	Full test configuration guidance
Debugging failing tests interactively	No - use typescript-debugging	Inspector-based debugging

Parameters

• pattern (optional): Test file or name pattern
• --coverage: Enable code coverage reporting
• --bail: Stop on first failure
• --watch: Watch mode for development

Execution

Quick feedback (default for agentic use):

bun test --dots --bail=1 $PATTERN

With coverage:

bun test --dots --coverage $PATTERN

Filter by test name (not file path):

bun test --dots --bail=1 -t "pattern"

Watch mode:

bun test --watch $PATTERN

CI mode (JUnit output):

bun test --reporter=junit --reporter-outfile=junit.xml $PATTERN

Output Interpretation

Symbol	Meaning
.	Test passed
F	Test failed
S	Test skipped

Post-test

1. Report pass/fail summary
2. If failures: show first failure details
3. If coverage enabled: report coverage percentage