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tiennm99
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A meteor coloured by rarity falls across a night sky, lands in a white flash, and the label is revealed with its stars popping in. The caller picks the result and rarity; the route only draws it. Renders as silent H.264 so Telegram plays it as an animation without GIF banding, and shares the render slots with /api/gif.
65 lines
2.4 KiB
JavaScript
65 lines
2.4 KiB
JavaScript
import {describe, expect, test} from 'vitest';
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import {
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createStarfield,
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gachaTimeline,
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gachaTotalSeconds,
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getEmblemGlyph,
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getLabelFontSize,
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getMeteorPoint,
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getRarityPalette,
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getStarRevealTimes,
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} from '../src/remotion/gacha-timeline.js';
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describe('gacha timeline', () => {
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test('phases run in order and finish before the clip ends', () => {
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const tl = gachaTimeline;
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expect(tl.meteorStart).toBeLessThan(tl.meteorEnd);
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expect(tl.flashStart).toBeLessThan(tl.flashPeak);
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expect(tl.meteorEnd).toBeLessThanOrEqual(tl.flashPeak);
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expect(tl.flashPeak).toBeLessThan(tl.flashHoldEnd);
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expect(tl.revealStart).toBeLessThanOrEqual(tl.flashHoldEnd);
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expect(tl.flashHoldEnd).toBeLessThan(tl.flashEnd);
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expect(tl.nameIn).toBeLessThan(tl.nameSettled);
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const lastStar = getStarRevealTimes(5).at(-1) ?? 0;
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expect(lastStar + 1).toBeLessThan(gachaTotalSeconds);
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});
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test.each([3, 4, 5])('reveals one star per rarity level for %i stars', (rarity) => {
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const times = getStarRevealTimes(/** @type {3 | 4 | 5} */ (rarity));
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expect(times).toHaveLength(rarity);
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expect(times[0]).toBe(gachaTimeline.starsStart);
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expect([...times].sort((a, b) => a - b)).toEqual(times);
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});
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test('each rarity has a distinct meteor colour', () => {
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const glows = [3, 4, 5].map((rarity) => getRarityPalette(/** @type {3 | 4 | 5} */ (rarity)).glow);
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expect(new Set(glows).size).toBe(3);
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});
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test('meteor falls from off-screen upper right toward the lower left', () => {
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const start = getMeteorPoint(0, 640, 360);
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const end = getMeteorPoint(1, 640, 360);
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expect(start.x).toBeGreaterThan(640);
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expect(start.y).toBeLessThan(0);
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expect(end.x).toBeLessThan(start.x);
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expect(end.y).toBeGreaterThan(start.y);
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expect(getMeteorPoint(2, 640, 360)).toEqual(end);
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expect(getMeteorPoint(-1, 640, 360)).toEqual(start);
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});
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test('starfield is deterministic per seed', () => {
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expect(createStarfield(5, 7)).toEqual(createStarfield(5, 7));
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expect(createStarfield(5, 7)).not.toEqual(createStarfield(5, 8));
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});
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test('long labels get smaller text', () => {
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expect(getLabelFontSize('Pizza', 360)).toBeGreaterThan(getLabelFontSize('x'.repeat(40), 360));
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});
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test('emblem glyph keeps multi-unit characters whole', () => {
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expect(getEmblemGlyph(' pizza')).toBe('P');
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expect(getEmblemGlyph('🍕 time')).toBe('🍕');
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expect(getEmblemGlyph('ăn')).toBe('Ă');
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});
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});
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