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Testing

Unit test a Qwik component using Qwik Speak

To unit test a component which uses qwik-speak, you need to wrap it with QwikSpeakMockProvider component, so that it can pass the SpeakContext to the test component and its children.

Given the config object and a component to test like:

src/routes/index.tsx

import { inlineTranslate, useFormatDate, useFormatNumber } from 'qwik-speak';

export default component$(() => {
  const t = inlineTranslate();

  return (
    <>
      <h1>{t('app.title@@{{name}} demo', { name: 'Qwik Speak' })}</h1>
    </>
  );
});

We'll have the following unit test (using Vitest):

src/routes/index.spec.tsx

import Home from './index';

test(`[Home Component]: Should render the component`, async () => {
  const { screen, render } = await createDOM();

  await render(
    <QwikSpeakMockProvider config={config}>
      <Home />
    </QwikSpeakMockProvider>
  );

  expect(screen.outerHTML).toContain('Qwik Speak demo');
});

Optionally, if you need to test the translated texts in different languages, you have to provide loadTranslation$ to ensure translations are loaded in test environment, and the locale to use:

test(`[Home Component]: Should render translated texts in Italian`, async () => {
  const { screen, render } = await createDOM();

  await render(
    <QwikSpeakProvider config={config} translationFn={translationFn} locale={{ lang: 'it-IT', currency: 'EUR', timeZone: 'Europe/Rome' }}>
      <Home />
    </QwikSpeakProvider>
  );

  expect(screen.outerHTML).toContain('Qwik Speak dimostrazione');
});