gitlab-ce/spec/frontend/helpers/init_simple_app_helper_spec.js

95 lines
2.6 KiB
JavaScript

import { createWrapper } from '@vue/test-utils';
import Vue from 'vue';
import VueApollo from 'vue-apollo';
import { setHTMLFixture, resetHTMLFixture } from 'helpers/fixtures';
import { initSimpleApp } from '~/helpers/init_simple_app_helper';
import createDefaultClient from '~/lib/graphql';
const MockComponent = Vue.component('MockComponent', {
props: {
someKey: {
type: String,
required: false,
default: '',
},
count: {
type: Number,
required: false,
default: 0,
},
},
render: (createElement) => createElement('span'),
});
let wrapper;
const findMock = () => wrapper.findComponent(MockComponent);
const didCreateApp = () => wrapper !== undefined;
const initMock = (html, options = {}) => {
setHTMLFixture(html);
const app = initSimpleApp('#mount-here', MockComponent, options);
wrapper = app ? createWrapper(app) : undefined;
};
describe('helpers/init_simple_app_helper/initSimpleApp', () => {
afterEach(() => {
resetHTMLFixture();
});
it('mounts the component if the selector exists', () => {
initMock('<div id="mount-here"></div>');
expect(findMock().exists()).toBe(true);
});
it('does not mount the component if selector does not exist', () => {
initMock('<div id="do-not-mount-here"></div>');
expect(didCreateApp()).toBe(false);
});
it('passes the prop to the component if the prop exists', () => {
initMock(`<div id="mount-here" data-view-model={"someKey":"thing","count":123}></div>`);
expect(findMock().props()).toEqual({
someKey: 'thing',
count: 123,
});
});
describe('options', () => {
describe('withApolloProvider', () => {
describe('if not true or not VueApollo', () => {
it('apolloProvider not created', () => {
initMock('<div id="mount-here"></div>', { withApolloProvider: false });
expect(wrapper.vm.$apollo).toBeUndefined();
});
});
describe('if true, creates default provider', () => {
it('creates a default apolloProvider', () => {
initMock('<div id="mount-here"></div>', { withApolloProvider: true });
expect(wrapper.vm.$apollo).not.toBeUndefined();
});
});
describe('if VueApollo, sets as default provider', () => {
it('uses the provided apolloClient', () => {
Vue.use(VueApollo);
const apolloProvider = new VueApollo({ defaultClient: createDefaultClient() });
initMock('<div id="mount-here"></div>', { withApolloProvider: apolloProvider });
expect(wrapper.vm.$apolloProvider).toBe(apolloProvider);
});
});
});
});
});