Ayo
ce30b114a2
- this adds a new demo web app with vite HMR for development - all examples are covered with e2e tests
23 lines
708 B
JavaScript
23 lines
708 B
JavaScript
import { beforeEach, expect, test } from 'vitest'
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import '../../demo/examples/use-shadow/index.js'
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beforeEach(() => {
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document.body.innerHTML = ''
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})
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test('renders into an open shadow root and increments on click', () => {
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document.body.innerHTML = '<my-counter></my-counter>'
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const el = document.querySelector('my-counter')
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expect(el.shadowRoot).toBeTruthy()
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// light DOM stays empty; content lives in the shadow root
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expect(el.querySelector('#btn')).toBeNull()
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expect(el.shadowRoot.querySelector('#btn span').textContent.trim()).toBe(
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'123'
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)
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el.shadowRoot.querySelector('#btn').click()
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expect(el.shadowRoot.querySelector('#btn span').textContent.trim()).toBe(
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'124'
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)
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})
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