11baf4f8f5
Share indexed recency, count/weight budgets and native disposal across six caches while preserving domain invalidation and eviction policies. Keep pools, weak memos and dependency-owned resources separate.\n\nAccount for effect pixels incrementally and preserve caller ownership on rejection. Validate disposal, slot reuse, exact integer accounting and unchanged raster output.
83 lines
2.4 KiB
TypeScript
83 lines
2.4 KiB
TypeScript
import { describe, expect, mock, test } from 'bun:test'
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import type { Image as CKImage } from 'canvaskit-wasm'
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import { TileImageCache, type RenderedTile } from '#core/canvas/renderer/tiles'
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function tile(x: number): RenderedTile {
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const image: Pick<CKImage, 'width' | 'height' | 'delete'> = {
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width: () => 256,
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height: () => 256,
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delete: mock()
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}
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return {
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key: { pageId: 'page', level: 1, x, y: 0 },
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image,
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chunkCount: 1,
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estimatedCost: 1,
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renderMs: 1,
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allocationMs: 0,
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drawMs: 1,
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flushMs: 0,
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snapshotMs: 0
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}
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}
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describe('tile image cache', () => {
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test('disposes rejected tiles without returning a deleted image', () => {
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const cache = new TileImageCache(1)
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const oversized = tile(0)
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expect(cache.install(oversized, 1)).toBeNull()
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expect(oversized.image.delete).toHaveBeenCalledTimes(1)
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expect(cache.size()).toBe(0)
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expect(cache.byteSize()).toBe(0)
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cache.clear()
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expect(oversized.image.delete).toHaveBeenCalledTimes(1)
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})
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test('replaces native images and reports memory', () => {
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const cache = new TileImageCache()
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const first = tile(0)
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const second = tile(0)
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cache.install(first, 1)
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cache.install(second, 2)
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expect(first.image.delete).toHaveBeenCalledTimes(1)
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expect(cache.size()).toBe(1)
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expect(cache.byteSize()).toBe(256 * 256 * 4)
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cache.clear()
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expect(second.image.delete).toHaveBeenCalledTimes(1)
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})
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test('invalidates intersecting tiles and advances unaffected generations', () => {
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const cache = new TileImageCache()
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const first = tile(0)
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const second = tile(1)
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cache.install(first, 1)
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cache.install(second, 1)
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expect(cache.invalidateBounds('page', { minX: 300, minY: 10, maxX: 340, maxY: 40 }, 2)).toBe(1)
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expect(cache.get(first.key)?.contentGeneration).toBe(2)
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expect(cache.get(second.key)).toBeNull()
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expect(second.image.delete).toHaveBeenCalledTimes(1)
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cache.clear()
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})
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test('evicts least recently used tiles within its byte budget', () => {
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const bytes = 256 * 256 * 4
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const cache = new TileImageCache(bytes * 2)
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const first = tile(0)
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const second = tile(1)
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const third = tile(2)
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cache.install(first, 1)
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cache.install(second, 1)
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cache.get(first.key)
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cache.install(third, 1)
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expect(second.image.delete).toHaveBeenCalledTimes(1)
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expect(cache.get(first.key)).not.toBeNull()
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expect(cache.get(third.key)).not.toBeNull()
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cache.clear()
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})
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})
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