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https://github.com/claude-code-best/claude-code.git
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170 lines
5.2 KiB
TypeScript
170 lines
5.2 KiB
TypeScript
import { describe, expect, test } from 'bun:test'
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import {
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type Overlay,
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computeRippleLine,
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mergeLayers,
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pickChar,
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} from '../rippleAnimation.js'
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describe('pickChar', () => {
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test('intensity=0 → 空格', () => {
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expect(pickChar(0)).toBe(' ')
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})
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test('intensity < 0 钳到 0 → 空格', () => {
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expect(pickChar(-0.5)).toBe(' ')
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})
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test('intensity > 1 钳到 1 → 最高强度字符', () => {
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expect(pickChar(1.5)).toBe(pickChar(1))
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})
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test('intensity 单调递增 → 字符视觉密度递增(按字符串长度近似)', () => {
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// 字符密度:' ' < '·' < '∙' < '░' < '▒' < '▓'
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const samples = [0, 0.15, 0.35, 0.55, 0.75, 0.95]
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const chars = samples.map(pickChar)
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expect(chars[0]).toBe(' ')
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// 至少 4 种不同字符(说明分级生效)
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const unique = new Set(chars)
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expect(unique.size).toBeGreaterThanOrEqual(4)
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})
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test('波峰位置(intensity ≥ 0.95)出现 WAVE_PEAK_CHARS 循环字符之一', () => {
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const wavePeakChars = ['~', '◌', '○', '◑', '●']
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// 不同 time 偏移应触达不同波峰字符(基于 time / 80 的相位)
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const seen = new Set<string>()
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for (let t = 0; t < 400; t += 40) {
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seen.add(pickChar(1, t))
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}
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// 至少出现 2 种 WAVE_PEAK_CHARS(说明循环生效)
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const hits = [...seen].filter(c => wavePeakChars.includes(c))
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expect(hits.length).toBeGreaterThanOrEqual(2)
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})
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})
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describe('computeRippleLine', () => {
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test('返回字符串长度等于 width', () => {
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const line = computeRippleLine({
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y: 2,
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width: 30,
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time: 100,
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sourceX: 25,
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sourceY: 2,
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})
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expect(line.length).toBe(30)
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})
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test('width=0 → 空字符串', () => {
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expect(
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computeRippleLine({ y: 0, width: 0, time: 0, sourceX: 0, sourceY: 0 }),
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).toBe('')
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})
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test('震源点 (sourceX, sourceY) 处字符非空(dist=0,falloff=1)', () => {
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const line = computeRippleLine({
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y: 5,
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width: 11,
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time: 0,
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sourceX: 5,
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sourceY: 5,
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})
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// 震源在 (5,5),y=5 行的第 5 列字符应非空格
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expect(line[5]).not.toBe(' ')
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})
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test('远离震源的字符强度衰减(远端更可能是空格)', () => {
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// 震源在左端,远端 30 列外,time=0 时强度低
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const line = computeRippleLine({
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y: 0,
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width: 40,
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time: 0,
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sourceX: 0,
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sourceY: 0,
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})
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// 第 0 列字符密度 >= 第 39 列(不一定严格,但近端更密)
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const nearDensity = line.charCodeAt(0)
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const farDensity = line.charCodeAt(39)
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// 用 charCode 近似:震源附近字符 charCode 应大于等于远端
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// 注:空格 charCode=32,其他字符 charCode 通常更大
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expect(nearDensity).toBeGreaterThanOrEqual(farDensity)
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})
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test('time 推进时字符变化(动画效果)', () => {
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const t0 = computeRippleLine({
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y: 2,
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width: 30,
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time: 0,
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sourceX: 25,
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sourceY: 2,
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})
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const t1 = computeRippleLine({
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y: 2,
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width: 30,
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time: 500,
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sourceX: 25,
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sourceY: 2,
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})
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expect(t0).not.toBe(t1)
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})
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})
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describe('mergeLayers', () => {
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test('无 overlay 时原样返回 ripple', () => {
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const ripple = '·∙░▒▓░∙·'
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expect(mergeLayers(ripple, [])).toBe(ripple)
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})
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test('overlay 文字字符覆盖对应位置', () => {
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const ripple = '········'
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const overlays: Overlay[] = [{ text: 'hi', x: 2 }]
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expect(mergeLayers(ripple, overlays)).toBe('··hi····')
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})
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test('多个 overlay 不重叠时各自覆盖', () => {
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const ripple = '·········'
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const overlays: Overlay[] = [
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{ text: 'A', x: 0 },
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{ text: 'B', x: 4 },
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{ text: 'C', x: 8 },
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]
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// ripple 长 9:A 在 0;B 在 4;C 在 8;其余保留 '·'
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expect(mergeLayers(ripple, overlays)).toBe('A···B···C')
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})
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test('overlay 超出右边界被截断', () => {
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const ripple = '·····'
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const overlays: Overlay[] = [{ text: 'abcdef', x: 3 }]
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// ripple 长 5,overlay 从 x=3 开始 → 'ab' 占 3,4,剩下 'cdef' 截断
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expect(mergeLayers(ripple, overlays)).toBe('···ab')
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})
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test('overlay x 为负数 → 从开头截断(不向左溢出)', () => {
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const ripple = '·····'
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const overlays: Overlay[] = [{ text: 'abc', x: -1 }]
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// x=-1 → 跳过 'a','bc' 占 0,1
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expect(mergeLayers(ripple, overlays)).toBe('bc···')
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})
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test('overlay x=0 + 完整覆盖 → 全部覆盖', () => {
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const ripple = '·····'
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const overlays: Overlay[] = [{ text: 'HELLO', x: 0 }]
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expect(mergeLayers(ripple, overlays)).toBe('HELLO')
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})
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test('文字字符永远胜出(即使 ripple 那里是高密度字符)', () => {
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const ripple = '▓▓▓▓▓'
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const overlays: Overlay[] = [{ text: 'X', x: 2 }]
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expect(mergeLayers(ripple, overlays)).toBe('▓▓X▓▓')
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})
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test('多个 overlay 后者覆盖前者(同位置)', () => {
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const ripple = '·····'
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const overlays: Overlay[] = [
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{ text: 'AAA', x: 0 },
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{ text: 'B', x: 1 },
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]
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// ripple 长 5:A 在 0;B 在 1(覆盖第一个 A);2 为 A;3,4 为 '·'(未被 overlay 覆盖)
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expect(mergeLayers(ripple, overlays)).toBe('ABA··')
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})
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})
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