gitlab-org--gitlab-foss/spec/frontend/blob/notebook/notebook_viever_spec.js

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import { shallowMount } from '@vue/test-utils';
import { GlLoadingIcon } from '@gitlab/ui';
import MockAdapter from 'axios-mock-adapter';
import waitForPromises from 'helpers/wait_for_promises';
import axios from '~/lib/utils/axios_utils';
import component from '~/blob/notebook/notebook_viewer.vue';
import NotebookLab from '~/notebook/index.vue';
describe('iPython notebook renderer', () => {
let wrapper;
let mock;
const endpoint = 'test';
const mockNotebook = {
cells: [
{
cell_type: 'markdown',
source: ['# test'],
},
{
cell_type: 'code',
execution_count: 1,
source: ['def test(str)', ' return str'],
outputs: [],
},
],
};
const mountComponent = () => {
wrapper = shallowMount(component, { propsData: { endpoint } });
};
const findLoading = () => wrapper.find(GlLoadingIcon);
const findNotebookLab = () => wrapper.find(NotebookLab);
const findLoadErrorMessage = () => wrapper.find({ ref: 'loadErrorMessage' });
const findParseErrorMessage = () => wrapper.find({ ref: 'parsingErrorMessage' });
beforeEach(() => {
mock = new MockAdapter(axios);
});
afterEach(() => {
wrapper.destroy();
wrapper = null;
mock.restore();
});
it('shows loading icon', () => {
mock.onGet(endpoint).reply(() => new Promise(() => {}));
mountComponent({ loadFile: jest.fn() });
expect(findLoading().exists()).toBe(true);
});
describe('successful response', () => {
beforeEach(() => {
mock.onGet(endpoint).reply(200, mockNotebook);
mountComponent();
return waitForPromises();
});
it('does not show loading icon', () => {
expect(findLoading().exists()).toBe(false);
});
it('renders the notebook', () => {
expect(findNotebookLab().exists()).toBe(true);
});
});
describe('error in JSON response', () => {
beforeEach(() => {
mock.onGet(endpoint).reply(() =>
// eslint-disable-next-line prefer-promise-reject-errors
Promise.reject({ status: 200 }),
);
mountComponent();
return waitForPromises();
});
it('does not show loading icon', () => {
expect(findLoading().exists()).toBe(false);
});
it('shows error message', () => {
expect(findParseErrorMessage().text()).toEqual('An error occurred while parsing the file.');
});
});
describe('error getting file', () => {
beforeEach(() => {
mock.onGet(endpoint).reply(500, '');
mountComponent();
return waitForPromises();
});
it('does not show loading icon', () => {
expect(findLoading().exists()).toBe(false);
});
it('shows error message', () => {
expect(findLoadErrorMessage().text()).toEqual(
'An error occurred while loading the file. Please try again later.',
);
});
});
});