test/PersistenceManager.spec.js

import chai from 'chai';
import chaiAsPromised from 'chai-as-promised';
import PersistenceManager from 'service-framework/dist/PersistenceManager';

let expect = chai.expect;
let localStorage = window.localStorage

describe('PersistenceManager', function() {
  let persistenceManager = new PersistenceManager(localStorage);

    describe('set', function(){
        it('should set the value for a given key-version tuple', function(){
            persistenceManager.set('key', 'v1.0.0', {})

            expect(localStorage.getItem('key')).to.exist
        })
    })

    describe('get', function(){
        it('should get the value for a given key', function(){
            persistenceManager.set('key', 'v1.0.0', {})

            expect(persistenceManager.get('key')).to.be.eql({})
        })
    })

    describe('getVersion', function(){
        it('should get the value version for a given key', function(){
            persistenceManager.set('key', 'v1.0.0', {})

            expect(persistenceManager.getVersion('key')).to.be.equal('v1.0.0')
        })
    })

    describe('delete', function(){
        it('should remove a value from PersistenceManager for a given key', function(){
            localStorage.setItem('key', '{}')

            persistenceManager.delete('key')

            expect(localStorage.getItem('key')).to.be.a('null')
        })
    })
})