text: ﻿/* globals describe expect it */
  /* eslint-disable import/no-unresolved */
  import { SingletonIterable } from '../../src/index';
  import { expectList } from './tests-common';
  
  describe('Singletons lists:', () => {
    it('`Iterable.singleton` function', () => {
      expect(SingletonIterable).toBeOfType('function');
      expectList(new SingletonIterable(Math.PI), [Math.PI]);
      expectList(new SingletonIterable(), [undefined]);
    });
  }); // describe "Singletons lists:"
  