im0o
129a76696b
检测公网 IP、重启内核、订阅详情右上三个按钮都去掉边框，hover 出浅底。 检测结果由国家代码换成旗帜 emoji 加 IP；Windows 的系统字体没有旗帜 字形，浏览器会退回显示两个字母，和原来的效果一致。
64 lines
2.0 KiB
TypeScript
64 lines
2.0 KiB
TypeScript
import { describe, expect, it } from 'bun:test'
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import { flagEmoji, formatAgo, formatBytes } from './format.ts'
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describe('流量数字', () => {
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it('零和不满 1KB 的按字节显示，不带小数', () => {
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expect(formatBytes(0)).toBe('0 B')
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expect(formatBytes(512)).toBe('512 B')
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expect(formatBytes(1023)).toBe('1023 B')
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})
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it('1024 的边界正好换档', () => {
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expect(formatBytes(1024)).toBe('1 KB')
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expect(formatBytes(1024 * 1024)).toBe('1 MB')
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})
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it('不满 100 保留一位小数，够 100 取整', () => {
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expect(formatBytes(23.4 * 1024 * 1024)).toBe('23.4 MB')
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expect(formatBytes(234.7 * 1024 * 1024)).toBe('235 MB')
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})
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it('超大数停在 TB 档', () => {
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expect(formatBytes(5 * 1024 ** 4)).toBe('5 TB')
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expect(formatBytes(5000 * 1024 ** 4)).toBe('5000 TB')
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})
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it('脏输入不炸', () => {
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expect(formatBytes(-1)).toBe('0 B')
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expect(formatBytes(Number.NaN)).toBe('0 B')
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})
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})
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describe('旗帜 emoji', () => {
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it('两位国家代码转成区域指示符对，大小写都认', () => {
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expect(flagEmoji('JP')).toBe('🇯🇵')
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expect(flagEmoji('us')).toBe('🇺🇸')
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})
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it('不像国家代码的输入原样返回', () => {
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expect(flagEmoji('')).toBe('')
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expect(flagEmoji('USA')).toBe('USA')
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expect(flagEmoji('1X')).toBe('1X')
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})
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})
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describe('相对时间', () => {
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const now = new Date('2026-08-12T12:00:00Z')
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const ago = (ms: number) => new Date(now.getTime() - ms)
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it('一分钟内是刚刚，之后按分、时、天换档', () => {
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expect(formatAgo(ago(30_000), now)).toBe('刚刚')
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expect(formatAgo(ago(21 * 60_000), now)).toBe('21 分钟前')
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expect(formatAgo(ago(3 * 3600_000), now)).toBe('3 小时前')
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expect(formatAgo(ago(5 * 86400_000), now)).toBe('5 天前')
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})
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it('超过 30 天给日期', () => {
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expect(formatAgo(new Date('2026-05-01T00:00:00'), now)).toBe('2026-05-01')
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})
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it('未来的时间当成刚刚，不出负数', () => {
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expect(formatAgo(ago(-60_000), now)).toBe('刚刚')
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})
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})
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