41 lines
1.5 KiB
TypeScript
41 lines
1.5 KiB
TypeScript
import { readdirSync, readFileSync } from 'node:fs';
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import path from 'node:path';
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import { describe, expect, it } from 'vitest';
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const AVATAR_DIR = path.join(process.cwd(), 'src/renderer/assets/participant-avatars');
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const EXPECTED_AVATAR_COUNT = 13;
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const MAX_AVATAR_DIMENSION_PX = 256;
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const MAX_AVATAR_FILE_BYTES = 120 * 1024;
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const MAX_AVATAR_CATALOG_BYTES = 1.25 * 1024 * 1024;
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function readPngDimensions(buffer: Buffer): { width: number; height: number } {
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expect(buffer.subarray(0, 8).toString('hex')).toBe('89504e470d0a1a0a');
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return {
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width: buffer.readUInt32BE(16),
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height: buffer.readUInt32BE(20),
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};
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}
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describe('participant avatar assets', () => {
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it('keeps startup avatars within the renderer asset budget', () => {
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const avatarFiles = readdirSync(AVATAR_DIR)
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.filter((fileName) => fileName.endsWith('.png'))
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.sort();
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let totalBytes = 0;
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expect(avatarFiles).toHaveLength(EXPECTED_AVATAR_COUNT);
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for (const fileName of avatarFiles) {
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const buffer = readFileSync(path.join(AVATAR_DIR, fileName));
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totalBytes += buffer.byteLength;
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const dimensions = readPngDimensions(buffer);
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expect(dimensions.width, fileName).toBeLessThanOrEqual(MAX_AVATAR_DIMENSION_PX);
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expect(dimensions.height, fileName).toBeLessThanOrEqual(MAX_AVATAR_DIMENSION_PX);
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expect(buffer.byteLength, fileName).toBeLessThanOrEqual(MAX_AVATAR_FILE_BYTES);
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}
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expect(totalBytes).toBeLessThanOrEqual(MAX_AVATAR_CATALOG_BYTES);
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});
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});
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