debian-mirror-gitlab/spec/frontend/blob/balsamiq/balsamiq_viewer_spec.js
2020-04-08 14:13:33 +05:30

361 lines
9.2 KiB
JavaScript

import sqljs from 'sql.js';
import axios from '~/lib/utils/axios_utils';
import BalsamiqViewer from '~/blob/balsamiq/balsamiq_viewer';
import ClassSpecHelper from '../../helpers/class_spec_helper';
jest.mock('sql.js');
describe('BalsamiqViewer', () => {
const mockArrayBuffer = new ArrayBuffer(10);
let balsamiqViewer;
let viewer;
describe('class constructor', () => {
beforeEach(() => {
viewer = {};
balsamiqViewer = new BalsamiqViewer(viewer);
});
it('should set .viewer', () => {
expect(balsamiqViewer.viewer).toBe(viewer);
});
});
describe('loadFile', () => {
let bv;
const endpoint = 'endpoint';
const requestSuccess = Promise.resolve({
data: mockArrayBuffer,
status: 200,
});
beforeEach(() => {
viewer = {};
bv = new BalsamiqViewer(viewer);
});
it('should call `axios.get` on `endpoint` param with responseType set to `arraybuffer', () => {
jest.spyOn(axios, 'get').mockReturnValue(requestSuccess);
jest.spyOn(bv, 'renderFile').mockReturnValue();
bv.loadFile(endpoint);
expect(axios.get).toHaveBeenCalledWith(
endpoint,
expect.objectContaining({
responseType: 'arraybuffer',
}),
);
});
it('should call `renderFile` on request success', done => {
jest.spyOn(axios, 'get').mockReturnValue(requestSuccess);
jest.spyOn(bv, 'renderFile').mockImplementation(() => {});
bv.loadFile(endpoint)
.then(() => {
expect(bv.renderFile).toHaveBeenCalledWith(mockArrayBuffer);
})
.then(done)
.catch(done.fail);
});
it('should not call `renderFile` on request failure', done => {
jest.spyOn(axios, 'get').mockReturnValue(Promise.reject());
jest.spyOn(bv, 'renderFile').mockImplementation(() => {});
bv.loadFile(endpoint)
.then(() => {
done.fail('Expected loadFile to throw error!');
})
.catch(() => {
expect(bv.renderFile).not.toHaveBeenCalled();
})
.then(done)
.catch(done.fail);
});
});
describe('renderFile', () => {
let container;
let previews;
beforeEach(() => {
viewer = {
appendChild: jest.fn(),
};
previews = [document.createElement('ul'), document.createElement('ul')];
balsamiqViewer = {
initDatabase: jest.fn(),
getPreviews: jest.fn(),
renderPreview: jest.fn(),
};
balsamiqViewer.viewer = viewer;
balsamiqViewer.getPreviews.mockReturnValue(previews);
balsamiqViewer.renderPreview.mockImplementation(preview => preview);
viewer.appendChild.mockImplementation(containerElement => {
container = containerElement;
});
BalsamiqViewer.prototype.renderFile.call(balsamiqViewer, mockArrayBuffer);
});
it('should call .initDatabase', () => {
expect(balsamiqViewer.initDatabase).toHaveBeenCalledWith(mockArrayBuffer);
});
it('should call .getPreviews', () => {
expect(balsamiqViewer.getPreviews).toHaveBeenCalled();
});
it('should call .renderPreview for each preview', () => {
const allArgs = balsamiqViewer.renderPreview.mock.calls;
expect(allArgs.length).toBe(2);
previews.forEach((preview, i) => {
expect(allArgs[i][0]).toBe(preview);
});
});
it('should set the container HTML', () => {
expect(container.innerHTML).toBe('<ul></ul><ul></ul>');
});
it('should add inline preview classes', () => {
expect(container.classList[0]).toBe('list-inline');
expect(container.classList[1]).toBe('previews');
});
it('should call viewer.appendChild', () => {
expect(viewer.appendChild).toHaveBeenCalledWith(container);
});
});
describe('initDatabase', () => {
let uint8Array;
let data;
beforeEach(() => {
uint8Array = {};
data = 'data';
balsamiqViewer = {};
window.Uint8Array = jest.fn();
window.Uint8Array.mockReturnValue(uint8Array);
BalsamiqViewer.prototype.initDatabase.call(balsamiqViewer, data);
});
it('should instantiate Uint8Array', () => {
expect(window.Uint8Array).toHaveBeenCalledWith(data);
});
it('should call sqljs.Database', () => {
expect(sqljs.Database).toHaveBeenCalledWith(uint8Array);
});
it('should set .database', () => {
expect(balsamiqViewer.database).not.toBe(null);
});
});
describe('getPreviews', () => {
let database;
let thumbnails;
let getPreviews;
beforeEach(() => {
database = {
exec: jest.fn(),
};
thumbnails = [{ values: [0, 1, 2] }];
balsamiqViewer = {
database,
};
jest.spyOn(BalsamiqViewer, 'parsePreview').mockImplementation(preview => preview.toString());
database.exec.mockReturnValue(thumbnails);
getPreviews = BalsamiqViewer.prototype.getPreviews.call(balsamiqViewer);
});
it('should call database.exec', () => {
expect(database.exec).toHaveBeenCalledWith('SELECT * FROM thumbnails');
});
it('should call .parsePreview for each value', () => {
const allArgs = BalsamiqViewer.parsePreview.mock.calls;
expect(allArgs.length).toBe(3);
thumbnails[0].values.forEach((value, i) => {
expect(allArgs[i][0]).toBe(value);
});
});
it('should return an array of parsed values', () => {
expect(getPreviews).toEqual(['0', '1', '2']);
});
});
describe('getResource', () => {
let database;
let resourceID;
let resource;
let getResource;
beforeEach(() => {
database = {
exec: jest.fn(),
};
resourceID = 4;
resource = ['resource'];
balsamiqViewer = {
database,
};
database.exec.mockReturnValue(resource);
getResource = BalsamiqViewer.prototype.getResource.call(balsamiqViewer, resourceID);
});
it('should call database.exec', () => {
expect(database.exec).toHaveBeenCalledWith(
`SELECT * FROM resources WHERE id = '${resourceID}'`,
);
});
it('should return the selected resource', () => {
expect(getResource).toBe(resource[0]);
});
});
describe('renderPreview', () => {
let previewElement;
let innerHTML;
let preview;
let renderPreview;
beforeEach(() => {
innerHTML = '<a>innerHTML</a>';
previewElement = {
outerHTML: '<p>outerHTML</p>',
classList: {
add: jest.fn(),
},
};
preview = {};
balsamiqViewer = {
renderTemplate: jest.fn(),
};
jest.spyOn(document, 'createElement').mockReturnValue(previewElement);
balsamiqViewer.renderTemplate.mockReturnValue(innerHTML);
renderPreview = BalsamiqViewer.prototype.renderPreview.call(balsamiqViewer, preview);
});
it('should call classList.add', () => {
expect(previewElement.classList.add).toHaveBeenCalledWith('preview');
});
it('should call .renderTemplate', () => {
expect(balsamiqViewer.renderTemplate).toHaveBeenCalledWith(preview);
});
it('should set .innerHTML', () => {
expect(previewElement.innerHTML).toBe(innerHTML);
});
it('should return element', () => {
expect(renderPreview).toBe(previewElement);
});
});
describe('renderTemplate', () => {
let preview;
let name;
let resource;
let template;
let renderTemplate;
beforeEach(() => {
preview = { resourceID: 1, image: 'image' };
name = 'name';
resource = 'resource';
template = `
<div class="card">
<div class="card-header">name</div>
<div class="card-body">
<img class="img-thumbnail" src="data:image/png;base64,image"/>
</div>
</div>
`;
balsamiqViewer = {
getResource: jest.fn(),
};
jest.spyOn(BalsamiqViewer, 'parseTitle').mockReturnValue(name);
balsamiqViewer.getResource.mockReturnValue(resource);
renderTemplate = BalsamiqViewer.prototype.renderTemplate.call(balsamiqViewer, preview);
});
it('should call .getResource', () => {
expect(balsamiqViewer.getResource).toHaveBeenCalledWith(preview.resourceID);
});
it('should call .parseTitle', () => {
expect(BalsamiqViewer.parseTitle).toHaveBeenCalledWith(resource);
});
it('should return the template string', () => {
expect(renderTemplate.replace(/\s/g, '')).toEqual(template.replace(/\s/g, ''));
});
});
describe('parsePreview', () => {
let preview;
let parsePreview;
beforeEach(() => {
preview = ['{}', '{ "id": 1 }'];
jest.spyOn(JSON, 'parse');
parsePreview = BalsamiqViewer.parsePreview(preview);
});
ClassSpecHelper.itShouldBeAStaticMethod(BalsamiqViewer, 'parsePreview');
it('should return the parsed JSON', () => {
expect(parsePreview).toEqual(JSON.parse('{ "id": 1 }'));
});
});
describe('parseTitle', () => {
let title;
let parseTitle;
beforeEach(() => {
title = { values: [['{}', '{}', '{"name":"name"}']] };
jest.spyOn(JSON, 'parse');
parseTitle = BalsamiqViewer.parseTitle(title);
});
ClassSpecHelper.itShouldBeAStaticMethod(BalsamiqViewer, 'parsePreview');
it('should return the name value', () => {
expect(parseTitle).toBe('name');
});
});
});