77 lines
2.6 KiB
TypeScript
77 lines
2.6 KiB
TypeScript
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import { describe, expect, it } from 'vitest'
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import {
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assertSameCellsShape,
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getBoundaryCondition,
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getCaClassFromParams,
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numericGridSize,
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resolveBoundaryIndex,
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supportsCaClass
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} from '../admin/src/caRuntime.js'
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import type { Cells } from '../admin/src/types.js'
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describe('CA runtime helpers', () => {
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it('extracts CA class metadata from resolved scene params', () => {
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expect(
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getCaClassFromParams({
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caClass: { dimensions: 2, states: 2, neighborhoodId: 'moore' }
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})
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).toEqual({ dimensions: 2, states: 2, neighborhoodId: 'moore' })
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})
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it('matches runtimes by dimensions and states without requiring neighbourhood', () => {
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expect(
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supportsCaClass(
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{ supported_classes: [{ dimensions: 2, states: 2 }] },
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{ dimensions: 2, states: 2, neighborhoodId: 'von-neumann' }
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)
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).toBe(true)
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expect(
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supportsCaClass(
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{ supported_classes: [{ dimensions: 3, states: 2 }] },
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{ dimensions: 2, states: 2 }
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)
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).toBe(false)
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})
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it('honors engine neighbourhood metadata when supplied', () => {
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expect(
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supportsCaClass(
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{ supported_classes: [{ dimensions: 2, states: 2, neighborhoodId: 'moore' }] },
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{ dimensions: 2, states: 2, neighborhoodId: 'moore' }
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)
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).toBe(true)
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expect(
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supportsCaClass(
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{ supported_classes: [{ dimensions: 2, states: 2, neighborhoodId: 'moore' }] },
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{ dimensions: 2, states: 2, neighborhoodId: 'von-neumann' }
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)
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).toBe(false)
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})
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it('defaults boundary handling to wrap and keeps legacy wrap=false as fixed', () => {
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expect(getBoundaryCondition({ simulation: { grid: {} } })).toBe('wrap')
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expect(getBoundaryCondition({ simulation: { grid: { wrap: false } } })).toBe('fixed')
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expect(getBoundaryCondition({ simulation: { grid: { boundary: 'mirror' } } })).toBe('mirror')
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})
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it('resolves wrap, mirror, and fixed boundary indexes', () => {
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expect(resolveBoundaryIndex(-1, 5, 'wrap')).toBe(4)
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expect(resolveBoundaryIndex(-1, 5, 'mirror')).toBe(1)
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expect(resolveBoundaryIndex(-1, 5, 'fixed')).toBeNull()
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})
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it('resolves grid sizes for 2D and 3D classes', () => {
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expect(numericGridSize({ size: [7, 8, 9] }, 2)).toEqual([7, 8, 1])
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expect(numericGridSize({ size: [7, 8, 9] }, 3)).toEqual([7, 8, 9])
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})
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it('rejects invalid engine output shapes', () => {
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const input: Cells = [
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[false, true],
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[true, false]
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]
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expect(() => assertSameCellsShape(input, [[true]], 'test output')).toThrow('preserve the input grid dimensions')
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expect(() => assertSameCellsShape(input, [[true], [false, true]], 'test output')).toThrow('rectangular')
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})
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})
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