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/* global describe, it */const {expect} = require('chai');const {isPromise} = require('../build/index.cjs');
describe('isPromise', () => {  it('returns `false` on non promise value', () => {    expect(isPromise('hello there.')).to.be.equal(false);  });
  it('returns `true` on es6 promise', () => {    const esPromise = new Promise(() => {});    expect(isPromise(esPromise)).to.be.equal(true);  });
  it('returns `true` on some other thenable', () => {    const thenable = {then: () => {}};    expect(isPromise(thenable)).to.be.equal(true);  });
  it('returns `false` if some falsy value is passed', () => {    expect(isPromise(null)).to.be.equal(false);  });
  it('returns `false` if passed object has no `then` property', () => {    expect(isPromise({})).to.be.equal(false);  });
  it('returns `false` if `then` is not a function', () => {    const obj = {then: 4711};    expect(isPromise(obj)).to.be.equal(false);  });});