trilium/apps/client/src-example/app/app.element.spec.ts

import { AppElement } from './app.element';

describe('AppElement', () => {
  let app: AppElement;

  beforeEach(() => {
    app = new AppElement();
  });

  it('should create successfully', () => {
    expect(app).toBeTruthy();
  });

  it('should have a greeting', () => {
    app.connectedCallback();

    expect(app.querySelector('h1').innerHTML).toContain(
      'Welcome @triliumnext/client'
    );
  });
});