fragginwagon
961ed44055
Define thumbnail, medium, and large WebP derivative variants behind an injected renderer and write them through ImageStorage with deterministic keys. Add focused tests and document the remaining worker-backed renderer. Verification: npm test passed 70 tests and integration passed 14 tests. No build script is configured.
39 lines
1.3 KiB
JavaScript
39 lines
1.3 KiB
JavaScript
import assert from 'node:assert/strict';
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import test from 'node:test';
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import { createImageDerivativeProcessor } from '../../src/infrastructure/images/image-derivative-processor.js';
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test('renders and stores thumbnail, medium, and large derivatives in order', async () => {
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const renderedWidths = [];
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const stored = [];
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const processor = createImageDerivativeProcessor({
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imageStorage: {
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async put(value) { stored.push(value); },
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},
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async renderer({ data, maxWidth }) {
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renderedWidths.push(maxWidth);
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return Buffer.concat([data, Buffer.from(`-${maxWidth}`)]);
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},
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});
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const results = await processor.process({
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sourceKey: 'inventory/item/front.jpg',
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data: Buffer.from('source'),
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});
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assert.deepEqual(renderedWidths, [320, 1280, 2400]);
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assert.deepEqual(results.map(({ name, key }) => ({ name, key })), [
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{ name: 'thumbnail', key: 'inventory/item/front-thumbnail.webp' },
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{ name: 'medium', key: 'inventory/item/front-medium.webp' },
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{ name: 'large', key: 'inventory/item/front-large.webp' },
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]);
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assert.equal(stored.length, 3);
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assert.equal(stored[1].data.toString(), 'source-1280');
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});
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test('requires a renderer implementation', () => {
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assert.throws(
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() => createImageDerivativeProcessor({ imageStorage: {} }),
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/renderer is required/,
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);
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}); |