55a01c5738
Create a single `currency.ts` utility with `formatPrice`, `formatVND`, `formatPricePerM2`, and `parseVND` to replace 9+ duplicated inline formatters. This fixes inconsistent decimal handling (1.5M was truncated to "1 triệu") and standardises price/m² display. Integrated across property cards, listing detail, dashboard, analytics, payments, pricing, and admin moderation pages with 19 new unit tests. Co-Authored-By: Paperclip <noreply@paperclip.ing>
126 lines
4.1 KiB
TypeScript
126 lines
4.1 KiB
TypeScript
import { describe, it, expect } from 'vitest';
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import {
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formatPrice,
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formatVND,
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formatPricePerM2,
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parseVND,
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} from '../currency';
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// ---------------------------------------------------------------------------
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// formatPrice — compact notation without currency suffix
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// ---------------------------------------------------------------------------
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describe('formatPrice', () => {
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it('formats billions as "X ty"', () => {
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expect(formatPrice(1_000_000_000)).toBe('1 t\u1ef7');
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expect(formatPrice(1_500_000_000)).toBe('1.5 t\u1ef7');
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expect(formatPrice(3_500_000_000)).toBe('3.5 t\u1ef7');
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expect(formatPrice(10_000_000_000)).toBe('10 t\u1ef7');
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});
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it('formats millions as "X trieu"', () => {
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expect(formatPrice(1_000_000)).toBe('1 tri\u1ec7u');
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expect(formatPrice(1_500_000)).toBe('1.5 tri\u1ec7u');
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expect(formatPrice(150_000_000)).toBe('150 tri\u1ec7u');
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expect(formatPrice(800_000_000)).toBe('800 tri\u1ec7u');
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expect(formatPrice(999_000_000)).toBe('999 tri\u1ec7u');
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});
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it('formats values below 1 million with locale separator', () => {
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expect(formatPrice(500_000)).toMatch(/500/);
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expect(formatPrice(1_000)).toMatch(/1/);
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expect(formatPrice(0)).toBe('0');
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});
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it('accepts string inputs', () => {
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expect(formatPrice('3500000000')).toBe('3.5 t\u1ef7');
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expect(formatPrice('150000000')).toBe('150 tri\u1ec7u');
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});
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it('handles edge cases gracefully', () => {
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expect(formatPrice(-1)).toBe('0');
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expect(formatPrice(NaN)).toBe('0');
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expect(formatPrice(Infinity)).toBe('0');
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expect(formatPrice('')).toBe('0');
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});
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it('strips trailing .0', () => {
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expect(formatPrice(2_000_000_000)).toBe('2 t\u1ef7');
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expect(formatPrice(5_000_000)).toBe('5 tri\u1ec7u');
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});
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});
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// ---------------------------------------------------------------------------
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// formatVND — with currency suffix "d"
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// ---------------------------------------------------------------------------
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describe('formatVND', () => {
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it('returns "Mien phi" for zero', () => {
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expect(formatVND(0)).toBe('Mi\u1ec5n ph\u00ed');
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});
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it('formats billions with suffix', () => {
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expect(formatVND(1_500_000_000)).toBe('1.5 t\u1ef7 \u0111');
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});
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it('formats millions with suffix', () => {
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expect(formatVND(5_000_000)).toBe('5 tri\u1ec7u \u0111');
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expect(formatVND(4_990_000)).toBe('5 tri\u1ec7u \u0111');
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});
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it('formats values below 1 million with suffix', () => {
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expect(formatVND(500_000)).toMatch(/\u0111$/);
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});
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it('accepts string input', () => {
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expect(formatVND('1500000000')).toBe('1.5 t\u1ef7 \u0111');
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});
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});
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// ---------------------------------------------------------------------------
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// formatPricePerM2 — price per square metre
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// ---------------------------------------------------------------------------
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describe('formatPricePerM2', () => {
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it('formats millions as "X tr/m\u00b2"', () => {
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expect(formatPricePerM2(50_500_000)).toBe('50.5 tr/m\u00b2');
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expect(formatPricePerM2(1_000_000)).toBe('1 tr/m\u00b2');
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});
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it('formats billions as "X ty/m\u00b2"', () => {
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expect(formatPricePerM2(1_500_000_000)).toBe('1.5 t\u1ef7/m\u00b2');
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});
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it('formats values below 1 million with "/m\u00b2" suffix', () => {
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expect(formatPricePerM2(500_000)).toMatch(/m\u00b2$/);
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});
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it('accepts string input', () => {
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expect(formatPricePerM2('50500000')).toBe('50.5 tr/m\u00b2');
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});
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it('handles edge cases', () => {
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expect(formatPricePerM2(0)).toBe('0 \u0111/m\u00b2');
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expect(formatPricePerM2(-1)).toBe('0 \u0111/m\u00b2');
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});
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});
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// ---------------------------------------------------------------------------
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// parseVND — reverse parse
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// ---------------------------------------------------------------------------
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describe('parseVND', () => {
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it('parses formatted number back', () => {
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expect(parseVND('500.000')).toBe(500000);
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});
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it('returns null for empty / non-numeric input', () => {
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expect(parseVND('')).toBeNull();
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expect(parseVND('abc')).toBeNull();
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});
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it('strips non-digit characters', () => {
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expect(parseVND('1.500.000 \u0111')).toBe(1500000);
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});
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});
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