JavaScript/Cellular-Automata/test/Elementary.test.js

import { getNextElementaryGeneration } from '../Elementary'

describe('Elementary Cellular Automata', () => {
  describe('Rule Errors', () => {
    it('Correct', () => {
      expect(() =>
        getNextElementaryGeneration([0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0], 128)
      ).not.toThrow()
    })

    it('Less than 0', () => {
      expect(() =>
        getNextElementaryGeneration([0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0], -1)
      ).toThrow()
    })

    it('Greater than 255', () => {
      expect(() =>
        getNextElementaryGeneration([0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0], 256)
      ).toThrow()
    })

    it('Decimal', () => {
      expect(() =>
        getNextElementaryGeneration([0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0], 100.4)
      ).toThrow()
    })
  })

  describe('Rule 54 Iterations', () => {
    it('Generation 1', () => {
      expect(
        getNextElementaryGeneration([0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0], 54)
      ).toEqual([0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0])
    })
    it('Generation 2', () => {
      expect(
        getNextElementaryGeneration([0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], 54)
      ).toEqual([0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0])
    })
    it('Generation 3', () => {
      expect(
        getNextElementaryGeneration([0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0], 54)
      ).toEqual([0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0])
    })
    it('Generation 4', () => {
      expect(
        getNextElementaryGeneration([0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0], 54)
      ).toEqual([0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0])
    })
  })

  describe('Rule 222 Iterations', () => {
    it('Generation 1', () => {
      expect(
        getNextElementaryGeneration([0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0], 222)
      ).toEqual([0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0])
    })
    it('Generation 2', () => {
      expect(
        getNextElementaryGeneration([0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], 222)
      ).toEqual([0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0])
    })
    it('Generation 3', () => {
      expect(
        getNextElementaryGeneration([0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], 222)
      ).toEqual([0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0])
    })
    it('Generation 4', () => {
      expect(
        getNextElementaryGeneration([0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], 222)
      ).toEqual([0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0])
    })
  })

  describe('Rule 60 Iterations', () => {
    it('Generation 1', () => {
      expect(
        getNextElementaryGeneration([0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0], 60)
      ).toEqual([0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0])
    })
    it('Generation 2', () => {
      expect(
        getNextElementaryGeneration([0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0], 60)
      ).toEqual([0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0])
    })
    it('Generation 3', () => {
      expect(
        getNextElementaryGeneration([0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0], 60)
      ).toEqual([0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0])
    })
    it('Generation 4', () => {
      expect(
        getNextElementaryGeneration([0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0], 60)
      ).toEqual([0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0])
    })
  })

  describe('Rule 90 Iterations', () => {
    it('Generation 1', () => {
      expect(
        getNextElementaryGeneration([0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0], 90)
      ).toEqual([0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0])
    })
    it('Generation 2', () => {
      expect(
        getNextElementaryGeneration([0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0], 90)
      ).toEqual([0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0])
    })
    it('Generation 3', () => {
      expect(
        getNextElementaryGeneration([0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0], 90)
      ).toEqual([0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0])
    })
    it('Generation 4', () => {
      expect(
        getNextElementaryGeneration([0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0], 90)
      ).toEqual([0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0])
    })
  })

  describe('Rule 30 Iterations', () => {
    it('Generation 1', () => {
      expect(
        getNextElementaryGeneration([0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0], 30)
      ).toEqual([0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0])
    })
    it('Generation 2', () => {
      expect(
        getNextElementaryGeneration([0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], 30)
      ).toEqual([0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0])
    })
    it('Generation 3', () => {
      expect(
        getNextElementaryGeneration([0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0], 30)
      ).toEqual([0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 0])
    })
  })
})