primevue-mirror/components/listbox/Listbox.spec.js

import { config, mount } from '@vue/test-utils';
import Listbox from './Listbox.vue';

config.global.mocks = {
    $primevue: {
        config: {
            locale: {
                aria: {
                    trueLabel: 'trueLabel',
                    falseLabel: 'falseLabel',
                    nullLabel: 'nullLabel'
                }
            }
        }
    }
};
describe('Listbox.vue', () => {
    let wrapper;

    beforeEach(() => {
        wrapper = mount(Listbox, {
            props: {
                modelValue: null,
                options: [
                    { name: 'New York', code: 'NY' },
                    { name: 'Rome', code: 'RM' },
                    { name: 'London', code: 'LDN' },
                    { name: 'Istanbul', code: 'IST' },
                    { name: 'Paris', code: 'PRS' }
                ],
                optionLabel: 'name'
            }
        });
    });

    it('should exist', () => {
        expect(wrapper.find('.p-listbox.p-component').exists()).toBe(true);
        expect(wrapper.findAll('li.p-listbox-item').length).toBe(5);
        expect(wrapper.findAll('li.p-listbox-item')[0].attributes()['aria-label']).toBe('New York');
    });

    it('should select a list item', async () => {
        await wrapper.vm.onOptionSelect({}, wrapper.vm.options[0]);

        expect(wrapper.emitted()['update:modelValue'][0]).toEqual([wrapper.vm.options[0]]);

        await wrapper.setProps({ modelValue: wrapper.vm.options[0] });

        expect(wrapper.findAll('li.p-listbox-item')[0].classes()).toContain('p-highlight');
    });
});