45 lines
1.7 KiB
JavaScript
45 lines
1.7 KiB
JavaScript
import assert from 'node:assert/strict';
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import { readFile } from 'node:fs/promises';
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import test from 'node:test';
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import { ImageCache } from '../js/ImageCache.js';
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const sourceFiles = await Promise.all([
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readFile(new URL('../src/ImageCache.ts', import.meta.url), 'utf8'),
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readFile(new URL('../src/Canvas.ts', import.meta.url), 'utf8'),
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readFile(new URL('../src/CanvasLayers.ts', import.meta.url), 'utf8'),
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readFile(new URL('../src/CanvasState.ts', import.meta.url), 'utf8'),
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readFile(new URL('../src/CanvasView.ts', import.meta.url), 'utf8'),
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]);
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test('image cache preserves key/value storage and clearing behavior', () => {
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const cache = new ImageCache();
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const imageSource = 'data:image/png;base64,encoded-image';
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cache.set('image-1', imageSource);
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assert.equal(cache.has('image-1'), true);
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assert.equal(cache.get('image-1'), imageSource);
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assert.equal(cache.delete('image-1'), true);
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assert.equal(cache.has('image-1'), false);
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cache.set('image-1', imageSource);
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cache.clear();
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assert.equal(cache.has('image-1'), false);
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assert.equal(cache.get('image-1'), undefined);
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});
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test('layer persistence uses one image cache contract', () => {
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const [cacheSource, canvasSource, layersSource, stateSource, viewSource] = sourceFiles;
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assert.match(cacheSource, /private cache: Map<string, CachedImage>/);
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assert.match(canvasSource, /imageCache: ImageCache/);
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assert.match(canvasSource, /this\.imageCache = new ImageCache\(\)/);
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assert.match(layersSource, /imageCache\.set\(imageId, image\.src\)/);
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assert.match(stateSource, /const imageSrc = this\.canvas\.imageCache\.get\(layerData\.imageId\)/);
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assert.doesNotMatch(stateSource, /imageData\.data/);
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assert.doesNotMatch(viewSource, /new ImageCache\(\)/);
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});
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