57 lines
2 KiB
TypeScript
57 lines
2 KiB
TypeScript
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import { describe, expect, test } from 'bun:test'
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import {
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reconcileNumericVariableBindings,
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SceneGraph,
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variablesResolvingThrough
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} from '@open-pencil/scene-graph'
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/** Two layers saved at 10 while their bindings say otherwise, as layers in imported files can be. */
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function drifted() {
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const graph = new SceneGraph()
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const collection = graph.createCollection('Size')
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const base = graph.createVariable('Base', 'FLOAT', collection.id, 40)
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const alias = graph.createVariable('Alias', 'FLOAT', collection.id, { aliasId: base.id })
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const other = graph.createVariable('Other', 'FLOAT', collection.id, 24)
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const page = graph.getPages()[0].id
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const frame = graph.createNode('FRAME', page, { width: 10, boundVariables: { width: alias.id } })
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const child = graph.createNode('RECTANGLE', frame.id, {
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width: 10,
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boundVariables: { width: other.id }
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})
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const elsewhere = graph.createNode('RECTANGLE', page, {
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width: 10,
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boundVariables: { width: other.id }
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})
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return { graph, base, alias, other, frame, child, elsewhere }
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}
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describe('binding scopes', () => {
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test('a variable reaches the variables that alias it, at any depth', () => {
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const { graph, base, alias } = drifted()
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const deeper = graph.createVariable('Deeper', 'FLOAT', base.collectionId, {
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aliasId: alias.id
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})
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expect(variablesResolvingThrough(graph, [base.id])).toEqual(
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new Set([base.id, alias.id, deeper.id])
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)
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})
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test('a variable scope resolves only the layers bound to it or its aliases', () => {
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const { graph, base, frame, child, elsewhere } = drifted()
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expect(reconcileNumericVariableBindings(graph, { variables: [base.id] })).toEqual([frame.id])
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expect(frame.width).toBe(40)
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expect([child.width, elsewhere.width]).toEqual([10, 10])
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})
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test('a subtree scope resolves the layers inside it and nothing else', () => {
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const { graph, frame, child, elsewhere } = drifted()
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reconcileNumericVariableBindings(graph, { subtrees: [frame.id] })
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expect([frame.width, child.width, elsewhere.width]).toEqual([40, 24, 10])
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})
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})
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