4.0.0 • Published 6 months ago

@open-wc/testing v4.0.0

Weekly downloads
11,461
License
MIT
Repository
github
Last release
6 months ago

Testing >> Testing Package ||10

@open-wc/testing is an opinionated package that combines and configures testing libraries to minimize the amount of ceremony required when writing tests.

Setup

npm i -D @open-wc/testing@next

Testing helpers

Exposes all functions of @open-wc/testing-helpers, so that you have a single package to import from:

import { fixture, html } from '@open-wc/testing';

describe('my-test', () => {
  it('works', async () => {
    const el = await fixture(html` <my-element></my-element> `);
  });
});

Chai

Exposes chai as an es module with useful plugins pre-configured:

@open-wc/semantic-dom-diff for dom tree / snapshot testing:

import { expect, fixture, html } from '@open-wc/testing';

describe('Plugin - semantic-dom-diff', () => {
  it('can semantically compare full dom trees', async () => {
    const el = await fixture(`<div><!-- comment --><h1>${'Hey'}  </h1>  </div>`);
    expect(el).dom.to.equal('<div><h1>Hey</h1></div>');
  });

  it('can semantically compare lightDom trees', async () => {
    const el = await fixture(`<div><!-- comment --><h1>${'Hey'}  </h1>  </div>`);
    expect(el).lightDom.to.equal('<h1>Hey</h1>');
  });

  it('can compare against a snapshot', async () => {
    const el = await fixture(`<div><!-- comment --><h1>${'Hey'}  </h1>  </div>`);
    expect(el).dom.to.equalSnapshot();
  });
});

@open-wc/chai-a11y-axe for a11y testing:

import { expect, fixture, html } from '@open-wc/testing';

describe('my-test', () => {
  it('works', async () => {
    const el = await fixture(html` <my-element></my-element> `);
    await expect(el).to.be.accessible();
  });
});

chai-dom for dom testing:

import { fixture, expect } from '@open-wc/testing';

describe('Plugin - chai-dom', () => {
  it('can check for an exiting css class', async () => {
    const el = await fixture(`<div class="foo bar"></div>`);
    expect(el).to.have.class('foo');
  });
});
testingchai
@esm-bundle/chai@open-wc/semantic-dom-diff@open-wc/testing-helpers@types/chai-dom@types/sinon-chaichai-a11y-axe
poc-wc-ts@infinitebrahmanuniverse/nolb-_open-n11-ui-librar@everything-registry/sub-chunk-684feedbacky-elementdisprz-searchkyndryl-design-systemn11-ui-libraryqing-t@jorgecasar/my-counter-testscu-web-components-core@fabric-ds/elements@zen-web-components/unit-test-helper@flippico/design-system@willson/kit-components@lwc/test-runner@neovici/testing@push.rocks/tapbundle@pushrocks/tapbundle@patternfly/pfe-toolsuniversal-login-lit@refinitiv-ui/test-helpers@blockquote-web-components/blockquote-base-common-dev-dependencies@brightspace-ui/testing@augment-vir/browser-testing@zalastax/nolb-_open-@divmain/uplift-toolkit@domoskanonos/nidoca-testing
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