data-fns/src/lib/indicesToBinary.test.ts

This library provides utility functions for working with array data that are useful in many contexts, including creative coding. It offers generic functions that perform common operations such as offsetting an array, generating an array based on a callbac

import { indicesToBinary } from './indicesToBinary'

describe('indicesToBinary', () => {
  it('should convert an array of indices to a binary array with the indices set to 1', () => {
    expect(indicesToBinary([0, 1, 2], 5)).toEqual([1, 1, 1, 0, 0])
  })

  it('should handle an empty array of indices', () => {
    expect(indicesToBinary([], 3)).toEqual([0, 0, 0])
  })

  it('should handle a length that is less than the maximum index', () => {
    expect(indicesToBinary([0, 1, 2], 2)).toEqual([1, 1])
  })

  it('should handle a length of 0', () => {
    expect(indicesToBinary([1, 2, 3], 0)).toEqual([])
  })

  it('should handle negative indices by ignoring them', () => {
    expect(indicesToBinary([-1, 0, 1], 4)).toEqual([1, 1, 0, 0])
  })
})