shoelace/src/components/input/input.test.ts

import { expect, fixture, html, waitUntil } from '@open-wc/testing';
import { sendKeys } from '@web/test-runner-commands';
import sinon from 'sinon';
import type SlInput from './input';

describe('<sl-input>', () => {
  it('should be disabled with the disabled attribute', async () => {
    const el = await fixture<SlInput>(html` <sl-input disabled></sl-input> `);
    const input = el.shadowRoot!.querySelector<HTMLInputElement>('[part="input"]')!;

    expect(input.disabled).to.be.true;
  });

  it('should be valid by default', async () => {
    const el = await fixture<SlInput>(html` <sl-input></sl-input> `);

    expect(el.invalid).to.be.false;
  });

  it('should be invalid when required and empty', async () => {
    const el = await fixture<SlInput>(html` <sl-input required></sl-input> `);

    expect(el.invalid).to.be.true;
  });

  it('should be invalid when required and after removing disabled', async () => {
    const el = await fixture<SlInput>(html` <sl-input disabled required></sl-input> `);

    el.disabled = false;
    await el.updateComplete;

    expect(el.invalid).to.be.true;
  });

  it('should submit the form when pressing enter in a form without a submit button', async () => {
    const form = await fixture<HTMLFormElement>(html` <form><sl-input></sl-input></form> `);
    const input = form.querySelector('sl-input')!;
    const submitHandler = sinon.spy((event: SubmitEvent) => event.preventDefault());

    form.addEventListener('submit', submitHandler);
    input.focus();
    await sendKeys({ press: 'Enter' });
    await waitUntil(() => submitHandler.calledOnce);

    expect(submitHandler).to.have.been.calledOnce;
  });
});