static-cms/packages/netlify-cms-lib-util/src/__tests__/api.spec.js

import * as api from '../API';
describe('Api', () => {
  describe('getPreviewStatus', () => {
    it('should return preview status on matching context', () => {
      expect(api.getPreviewStatus([{ context: 'deploy' }])).toEqual({ context: 'deploy' });
    });

    it('should return undefined on matching context', () => {
      expect(api.getPreviewStatus([{ context: 'other' }])).toBeUndefined();
    });
  });
});