Generate code coverage reports

Track test coverage with Bun

Bun’s test runner can generate code coverage reports.

Run with Coverage

bun test --coverage

Output Formats

# LCOV format
bun test --coverage --coverage-reporter=lcov

# HTML report
bun test --coverage --coverage-reporter=html

# JSON report
bun test --coverage --coverage-reporter=json

Coverage Thresholds

Set thresholds in bunfig.toml:

bunfig.toml

[test]
coverage = true
coverageThreshold = 80

See Code Coverage for complete documentation.