chore(test): Add more tests and coverage reports

[7nohe]

• Add more tests
• Report coverage

[github-actions]

Coverage Report

Status	Category	Percentage	Covered / Total
🟢	Lines	98.3% (🎯 95%)	1505 / 1531
🟢	Statements	98.3% (🎯 95%)	1505 / 1531
🟢	Functions	100% (🎯 95%)	34 / 34
🟢	Branches	88.27% (🎯 85%)	128 / 145

File Coverage

File	Stmts	% Branch	% Funcs	% Lines	Uncovered Lines
Changed Files
src/generate.mts	98.03%	75%	100%	98.03%	27
tests/utils.ts	100%	100%	100%	100%

Generated in workflow #216