import { appConfig } from '../../entities/AppConfig.fixture';
import { StorageService } from './StorageService';
import { CachedStorageService } from './CachedStorageService';
import { StringMarshaller } from './Marshallers';
import { Mock, IMock, It, Times } from 'typemoq';
import { expect } from 'chai';

describe('Cached storage service', () => {
  let localStorage: IMock<StorageService>;
  let cachedStorage: StorageService;

  context('in customer mode', () => {
    beforeEach(() => {
      localStorage = Mock.ofType<StorageService>();
      cachedStorage = new CachedStorageService({ ...appConfig, csa: false }, localStorage.object);
    });

    it('should return true if it contains a property in memory', () => {
      cachedStorage['_prop'] = 'value';
      expect(cachedStorage.contains('prop')).to.be.true;
    });

    it('should return true if it contains a property in local storage', () => {
      localStorage.setup(x => x.contains('prop')).returns(() => true);
      expect(cachedStorage.contains('prop')).to.be.true;
    });

    it('should return false if it doesn\'t contain a property', () => {
      localStorage.setup(x => x.contains('prop')).returns(() => false);
      expect(cachedStorage.contains('prop')).to.be.false;
    });

    it('should get a property from memory', () => {
      cachedStorage['_prop'] = 'fine';
      localStorage.setup(x => x.get('prop')).returns(() => 'ok');
      expect(cachedStorage.get('prop')).to.equal('fine');
    });

    it('should get a property from local storage', () => {
      localStorage.setup(x => x.get('prop', It.isAny())).returns(() => '123');
      expect(cachedStorage.get('prop')).to.equal('123');
      expect(cachedStorage['_prop']).to.equal('123');
    });

    it('should set a property to memory and local storage', () => {
      cachedStorage.set('prop', 50, StringMarshaller);
      expect(cachedStorage['_prop']).to.equal(50);
      localStorage.verify(x => x.set('prop', 50, StringMarshaller), Times.once());
    });
  });

  context('in CSA mode', () => {
    it('should set a property to memory but not local storage', () => {
      let localStorage = Mock.ofType<StorageService>();
      let cachedStorage = new CachedStorageService({ ...appConfig, csa: true }, localStorage.object);
      cachedStorage.set('prop', 'wow');
      expect(cachedStorage['_prop']).to.equal('wow');
      localStorage.verify(x => x.set(It.isAnyString(), It.isAny()), Times.never());
    });
  });
});