singletons/test/array.test.js

Helps create and manage families of singletons based on customizable conditions

import {expect} from 'chai';
import {SingletonFactory} from '../src/singletons';

describe('Testing Singleton with array', function () {
  it(`Calling SingletonFactory(Class, ['array'])`, function () {
    class Class {
      constructor () {}
    }

    const Singleton = SingletonFactory(Class, ['array']);

    const c1 = new Class();
    const c2 = new Class();
    const c3 = new Class();

    const s1 = Singleton([c1, c2, c3]);
    const s2 = Singleton([c3, c2, c1]);
    const s3 = Singleton([c1, c2, c3]);

    expect(s1).not.to.equal(s2);
    expect(s1).to.equal(s3);
  });

  it(`Calling SingletonFactory(Class, ['set'])`, function () {
    class Class {
      constructor () {}
    }

    const Singleton = SingletonFactory(Class, ['set']);

    const c1 = new Class();
    const c2 = new Class();
    const c3 = new Class();

    const s1 = Singleton([c1, c2, c3]);
    const s2 = Singleton([c3, c2, c1]);
    const s3 = Singleton([c1, c2, c3]);

    expect(s1).to.equal(s2);
    expect(s1).to.equal(s3);
  });
});