Files
app/src/utils/__tests__/formatCurrency.test.ts
T
Barcode Betty ea1bf5a728 feat: add utility functions with unit tests
Add formatCurrency, formatDate, and storeSlugs utilities in src/utils/
with 21 vitest unit tests covering standard and edge cases.

Co-Authored-By: Paperclip <noreply@paperclip.ing>
2026-03-30 18:53:40 +00:00

34 lines
891 B
TypeScript

import { describe, it, expect } from 'vitest';
import { formatCurrency } from '../formatCurrency';
describe('formatCurrency', () => {
it('formats 0 cents as $0.00', () => {
expect(formatCurrency(0)).toBe('$0.00');
});
it('formats 199 cents as $1.99', () => {
expect(formatCurrency(199)).toBe('$1.99');
});
it('formats 10000 cents as $100.00', () => {
expect(formatCurrency(10000)).toBe('$100.00');
});
it('handles negative values', () => {
expect(formatCurrency(-500)).toBe('-$5.00');
});
it('handles large numbers', () => {
expect(formatCurrency(99999999)).toBe('$999,999.99');
});
it('supports custom locale', () => {
expect(formatCurrency(1999, 'de-DE', 'EUR')).toContain('19,99');
});
it('supports custom currency', () => {
const result = formatCurrency(1000, 'en-US', 'EUR');
expect(result).toContain('10.00');
});
});