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import { GlSkeletonLoader } from '@gitlab/ui';
import { mount } from '@vue/test-utils';
import MockAdapter from 'axios-mock-adapter';
import $ from 'jquery';
import waitForPromises from 'helpers/wait_for_promises';
import axios from '~/lib/utils/axios_utils';
import MarkdownViewer from '~/vue_shared/components/content_viewer/viewers/markdown_viewer.vue';
describe('MarkdownViewer', () => {
let wrapper;
let mock;
const createComponent = (props) => {
wrapper = mount(MarkdownViewer, {
propsData: {
...props,
path: 'test.md',
content: '* Test',
projectPath: 'testproject',
type: 'markdown',
},
});
};
beforeEach(() => {
mock = new MockAdapter(axios);
jest.spyOn(axios, 'post');
jest.spyOn($.fn, 'renderGFM');
});
afterEach(() => {
mock.restore();
});
describe('success', () => {
beforeEach(() => {
mock.onPost(`${gon.relative_url_root}/testproject/preview_markdown`).replyOnce(200, {
body: '<b>testing</b> {{gl_md_img_1}}',
});
});
it('renders a skeleton loader while the markdown is loading', () => {
createComponent();
expect(wrapper.findComponent(GlSkeletonLoader).exists()).toBe(true);
});
it('renders markdown preview preview renders and loads rendered markdown from server', () => {
createComponent();
return waitForPromises().then(() => {
expect(wrapper.find('.md-previewer').text()).toContain('testing');
});
});
it('receives the filePath and commitSha as a parameters and passes them on to the server', () => {
createComponent({ filePath: 'foo/test.md', commitSha: 'abcdef' });
expect(axios.post).toHaveBeenCalledWith(
`${gon.relative_url_root}/testproject/preview_markdown`,
{ path: 'foo/test.md', text: '* Test', ref: 'abcdef' },
expect.any(Object),
);
});
it.each`
imgSrc | imgAlt
${'data:image/jpeg;base64,AAAAAA+/'} | ${'my image title'}
${'data:image/jpeg;base64,AAAAAA+/'} | ${'"somebody\'s image" &'}
${'hack" onclick=alert(0)'} | ${'hack" onclick=alert(0)'}
${'hack\\" onclick=alert(0)'} | ${'hack\\" onclick=alert(0)'}
${"hack' onclick=alert(0)"} | ${"hack' onclick=alert(0)"}
${"hack'><script>alert(0)</script>"} | ${"hack'><script>alert(0)</script>"}
`(
'transforms template tags with base64 encoded images available locally',
({ imgSrc, imgAlt }) => {
createComponent({
images: {
'{{gl_md_img_1}}': {
src: imgSrc,
alt: imgAlt,
title: imgAlt,
},
},
});
return waitForPromises().then(() => {
const img = wrapper.find('.md-previewer img').element;
// if the values are the same as the input, it means
// they were escaped correctly
expect(img).toHaveAttr('src', imgSrc);
expect(img).toHaveAttr('alt', imgAlt);
expect(img).toHaveAttr('title', imgAlt);
});
},
);
});
describe('error', () => {
beforeEach(() => {
mock.onPost(`${gon.relative_url_root}/testproject/preview_markdown`).replyOnce(500, {
body: 'Internal Server Error',
});
});
it('renders an error message if loading the markdown preview fails', () => {
createComponent();
return waitForPromises().then(() => {
expect(wrapper.find('.md-previewer').text()).toContain('error');
});
});
});
});
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