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Comments (2)

christian-bromann avatar christian-bromann commented on July 17, 2024

Thanks for raising the issue @tomherni

This seems to be a problem with our MockDoc implementation which is like JSDOM a JavaScript based re-implementation of the WHATWG DOM APIs. I will ingest this into our backlog but doubt that we provide any fast turnarounds due to competing priorities. I would recommend one of the other test solutions we've been working on that allow you to test your components in real browser / browser engines. Maybe take a look at:

For WebdriverIO I got your test working with the following:

import { h } from '@stencil/core'
import { fn, type Mock } from '@wdio/browser-runner'
import { render } from '@wdio/browser-runner/stencil'
import { expect } from '@wdio/globals'

import { MyParent } from './my-parent.js'
import { MyChild } from '../my-child/my-child.js'

describe('Stencil component testing', () => {
    it('should increment value on click automatically', async () => {
        console.log = fn()

        await render({
            components: [MyParent, MyChild],
            template: () => <my-parent />
        })

        await browser.waitUntil(() => (console.log as Mock).mock.calls.length === 3)
        expect(console.log).toHaveBeenNthCalledWith(1, 'adding event listener')
        expect(console.log).toHaveBeenNthCalledWith(2, 'dispatching event')
        expect(console.log).toHaveBeenNthCalledWith(3, 'event received')
    })
})

from stencil.

tomherni avatar tomherni commented on July 17, 2024

@christian-bromann thanks for your quick reply and workaround.

from stencil.

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