openpencil/tests/engine/io/fig/export/variables.test.ts
2026-05-16 11:59:02 +03:00

75 lines
2.6 KiB
TypeScript

import { describe, test, expect, beforeAll } from 'bun:test'
import { exportFigFile, parseFigFile, initCodec, SceneGraph } from '@open-pencil/core'
import type { Color } from '@open-pencil/core'
import { expectDefined } from '#tests/helpers/assert'
beforeAll(async () => {
await initCodec()
})
describe('COLOR variable alpha handling', () => {
test('COLOR variable without alpha exports successfully', async () => {
const graph = new SceneGraph()
const col = graph.createCollection('Colors')
// Simulate a COLOR variable value missing the alpha field
graph.createVariable('brand', 'COLOR', col.id, { r: 0.2, g: 0.4, b: 0.8 } as Color)
const exported = await exportFigFile(graph)
const reimported = await parseFigFile(exported.buffer as ArrayBuffer)
const vars = [...reimported.variables.values()]
const colorVar = expectDefined(
vars.find((v) => v.name === 'brand'),
'brand variable'
)
expect(colorVar.type).toBe('COLOR')
const val = Object.values(colorVar.valuesByMode)[0] as Color
expect(val.r).toBeCloseTo(0.2, 1)
expect(val.g).toBeCloseTo(0.4, 1)
expect(val.b).toBeCloseTo(0.8, 1)
expect(val.a).toBe(1)
})
test('COLOR variable with explicit alpha preserves it', async () => {
const graph = new SceneGraph()
const col = graph.createCollection('Colors')
graph.createVariable('overlay', 'COLOR', col.id, { r: 0, g: 0, b: 0, a: 0.5 })
const exported = await exportFigFile(graph)
const reimported = await parseFigFile(exported.buffer as ArrayBuffer)
const vars = [...reimported.variables.values()]
const colorVar = expectDefined(
vars.find((v) => v.name === 'overlay'),
'overlay variable'
)
const val = Object.values(colorVar.valuesByMode)[0] as Color
expect(val.a).toBeCloseTo(0.5, 1)
})
test('alias variables export with generated target GUIDs', async () => {
const graph = new SceneGraph()
const col = graph.createCollection('Colors')
const target = graph.createVariable('base', 'COLOR', col.id, { r: 0.1, g: 0.2, b: 0.3, a: 1 })
graph.createVariable('alias', 'COLOR', col.id, { aliasId: target.id })
const exported = await exportFigFile(graph)
const reimported = await parseFigFile(exported.buffer as ArrayBuffer)
const alias = expectDefined(
[...reimported.variables.values()].find((v) => v.name === 'alias'),
'alias variable'
)
const resolved = expectDefined(
reimported.resolveColorVariable(alias.id),
'resolved alias color'
)
expect(resolved.r).toBeCloseTo(0.1)
expect(resolved.g).toBeCloseTo(0.2)
expect(resolved.b).toBeCloseTo(0.3)
expect(resolved.a).toBe(1)
})
})