stub.js

describe('getFolderCount', () => {
    const getFolderCount = selectors.getFolderCount;
    before(() => {
      sinon.stub(selectors, 'getDisplayFolderProp');
      sinon.stub(selectors, 'getFoldersHash');
      sinon.stub(selectors, 'calcFolderCount');
      sinon.stub(coreSelectors, 'getMailboxes');
      sinon.stub(coreSelectors, 'getThreadIdsByFolder');
      getFolderCount({}, {});
    });

    after(() => {
      selectors.getDisplayFolderProp.restore();
      selectors.calcFolderCount.restore();
      selectors.getFoldersHash.restore();
      coreSelectors.getMailboxes.restore();
      coreSelectors.getThreadIdsByFolder.restore();
    });

    it('should call getDisplayFolderProp', () => {
      expect(selectors.getDisplayFolderProp).to.have.been.called();
    });

    it('should call calcFolderCount', () => {
      expect(selectors.calcFolderCount).to.have.been.called();
    });

    it('should call getFoldersHash', () => {
      expect(selectors.getFoldersHash).to.have.been.called();
    });
  });