updeep-remeda/test/constant-spec.js

import { expect } from 'chai';
import u from '../lib';

describe('u.constant', () => {
  it('returns what it is given... constantly', () => {
    const func = u.constant(4);

    expect(func()).to.equal(4);
    expect(func('hi')).to.equal(4);
    expect(func('hi', 8)).to.equal(4);
    expect(func(4)).to.equal(4);
  });

  it('freezes the result', () => {
    expect(Object.isFrozen(u.constant({})())).to.be.true;
  });
});