47fe43c3ec
- Gate ingest rendering until required faces and script fallbacks resolve - Key CanvasKit artifacts by font registration generation and invalidate affected nodes - Load character-aware remote subsets with cumulative coverage and exact render aliases - Use BCP-47 language hints for shaping and CJK fallback order - Keep baked .fig glyphs as an exhaustion-only fallback
71 lines
2.3 KiB
TypeScript
71 lines
2.3 KiB
TypeScript
import { describe, expect, test } from 'bun:test'
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import { SceneGraph } from '@open-pencil/core'
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import { fontManager, textNeededFallbackScripts } from '@open-pencil/core/text'
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function pageId(graph: SceneGraph): string {
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return graph.getPages()[0].id
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}
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describe('font fallback coverage indexing', () => {
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test('detects supplementary-plane Han code points', async () => {
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const family = `SupplementaryHan_${Date.now()}`
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const data = await Bun.file('public/Inter-Regular.ttf').arrayBuffer()
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fontManager.markLoaded(family, 'Regular', data)
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const graph = new SceneGraph()
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const node = graph.createNode('TEXT', pageId(graph), {
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text: 'A𠀀B',
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fontFamily: family,
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fontWeight: 400
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})
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expect(textNeededFallbackScripts(node)).toContain('cjk-sc')
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})
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test('uses BCP-47 language hints for Han fallback selection', async () => {
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const family = `LanguageHint_${Date.now()}`
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const data = await Bun.file('public/Inter-Regular.ttf').arrayBuffer()
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fontManager.markLoaded(family, 'Regular', data)
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const graph = new SceneGraph()
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const node = graph.createNode('TEXT', pageId(graph), {
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text: '骨骨',
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textLanguage: 'ja-JP',
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fontFamily: family,
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fontWeight: 400,
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styleRuns: [
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{
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start: 1,
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length: 1,
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style: { textLanguage: 'zh-Hant-TW' }
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}
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]
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})
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expect(textNeededFallbackScripts(node)).toEqual(['cjk-jp', 'cjk-tc'])
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})
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test('uses UTF-16 style-run indices after a surrogate pair', async () => {
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const cjkData = await Bun.file('tests/fixtures/fonts/NotoSansSC-Regular.ttf').arrayBuffer()
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const latinData = await Bun.file('public/Inter-Regular.ttf').arrayBuffer()
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const cjkFamily = `CJKRunBase_${Date.now()}`
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const latinFamily = `CJKRunOverride_${Date.now()}`
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fontManager.markLoaded(cjkFamily, 'Regular', cjkData)
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fontManager.markLoaded(latinFamily, 'Regular', latinData)
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const graph = new SceneGraph()
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const node = graph.createNode('TEXT', pageId(graph), {
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text: '😀你',
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fontFamily: cjkFamily,
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fontWeight: 400,
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styleRuns: [
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{
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start: 2,
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length: 1,
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style: { fontFamily: latinFamily }
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}
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]
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})
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expect(textNeededFallbackScripts(node)).toContain('cjk-sc')
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})
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})
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