Files
kochwas/tests/unit/quantity-format.test.ts
hsiegeln a15390f4b8
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TypeScript

import { describe, it, expect } from 'vitest';
import { formatQuantity } from '../../src/lib/quantity-format';
describe('formatQuantity', () => {
it('renders null as empty string', () => {
expect(formatQuantity(null)).toBe('');
});
it('renders whole numbers as integer', () => {
expect(formatQuantity(400)).toBe('400');
});
it('renders near-integer as integer (epsilon 0.01)', () => {
expect(formatQuantity(400.001)).toBe('400');
expect(formatQuantity(399.999)).toBe('400');
});
it('renders fractional with up to 2 decimals, trailing zeros trimmed', () => {
expect(formatQuantity(0.5)).toBe('0.5');
expect(formatQuantity(0.333333)).toBe('0.33');
expect(formatQuantity(1.1)).toBe('1.1');
expect(formatQuantity(1.1)).toBe('1.1');
});
it('handles zero', () => {
expect(formatQuantity(0)).toBe('0');
});
});