[Vuejs]-How to unit test updating meta content in Vue Quasar Meta component with Jest

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0👍

I would use nextTick function from Vue. It allows you to wait for the DOM to update after changes to reactive data. This can help ensure that your test checks the updated meta tags after Vue has had a chance to react to the changes.

This is how you could update your test to wait for changes:

import { ref, nextTick } from 'vue';
import { mount } from '@vue/test-utils'

describe('QuasarMetaHandler', () => {
  let wrapper;

  beforeEach(async () => {
    wrapper = mount(App);
    // Waiting for vue to finish updating the DOM
    await nextTick();
  });

  it('updates title to New Title', () => {
    const title = document.title;
    console.log(title);
    expect(title).toBe('New Title');
  });

  it('updates description meta tag', () => {
    const descriptionMetaTag = document.querySelector("meta[name='description']");
    console.log(descriptionMetaTag);
    expect(descriptionMetaTag.content).toBe('test');
  });
});

Also:

  1. Depending on the Quasar’s useMeta implementation and the overall setup, you might need to tweak the test to suit the actual behavior of your application.
  2. If you are still facing issues, consider adding a package specifically designed for handling head meta tags (like vue-meta) and see if it provides better support for testing these scenarios.

0👍

Testing updates to meta components using Vue Test Utils can be a bit tricky since meta updates are typically managed by the browser and not directly accessible through the DOM.
Here’s a potential approach to testing the updating of meta components in your scenario:

import { mount } from '@vue/test-utils';
import { useMeta } from 'quasar';

describe('QuasarMetaHandler', (): void => {
  it('updates meta tags', (): void => {
    // Mount your component
    const wrapper = mount(UseMetaComponent);
const titleElement = document.querySelector('title');
    expect(titleElement.textContent).toBe('New Title');
  });
});

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