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browser_object_test.js
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browser_object_test.js
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const assert = require('assert');
const brains = require('./helpers/brains');
const Browser = require('../src');
describe('Browser', function() {
const browser = new Browser();
before(function() {
brains.static('/browser/scripted', `
<html>
<head>
<title>Whatever</title>
<script src='/scripts/jquery.js'></script>
</head>
<body>
<h1>Hello World</h1>
<script>
document.title = 'Nice';
$(function() { $('title').text('Awesome') })
</script>
<script type='text/x-do-not-parse'>
<p>this is not valid JavaScript</p>
</script>
</body>
</html>
`);
brains.static('/browser/errored', `
<html>
<head>
<script>this.is.wrong</script>
</head>
</html>
`);
return brains.ready();
});
describe('browsing', function() {
describe('open page', function() {
before(function() {
return browser.visit('/browser/scripted');
});
it('should create HTML document', function() {
assert.equal(browser.document.constructor.name, 'HTMLDocument');
});
it('should load document from server', function() {
browser.assert.text('body h1', 'Hello World');
});
it('should load external scripts', function() {
const jQuery = browser.window.jQuery;
assert(jQuery, 'window.jQuery not available');
assert.equal(typeof jQuery.ajax, 'function');
});
it('should run jQuery.onready', function() {
browser.assert.text('title', 'Awesome');
});
it('should return status code of last request', function() {
browser.assert.success();
});
it('should indicate success', function() {
assert(browser.success);
});
it('should have a parent', function() {
assert(browser.window.parent);
});
});
describe('visit', function() {
describe('successful', function() {
let visitBrowser;
before(async function() {
visitBrowser = await Browser.visit('/browser/scripted');
});
it('should resolve to browser object', function() {
assert(visitBrowser.visit && visitBrowser.wait);
});
it('should indicate success', function() {
visitBrowser.assert.success();
});
it('should reset browser errors', function() {
assert.equal(visitBrowser.errors.length, 0);
});
after(function() {
visitBrowser.destroy();
});
});
describe('with error', function() {
let error;
let visitBrowser;
before(function(done) {
Browser.visit('/browser/errored', function() {
error = arguments[0];
visitBrowser = arguments[1];
done();
});
});
it('should call callback with error', function() {
assert(error.message && error.stack);
});
it('should indicate success', function() {
visitBrowser.assert.success();
});
it('should set browser errors', function() {
assert.equal(visitBrowser.errors.length, 1);
const { message } = visitBrowser.errors[0];
assert(/Cannot read property 'wrong'/.test(message));
});
after(function() {
visitBrowser.destroy();
});
});
describe('404', function() {
let error;
before(async function() {
try {
await browser.visit('/browser/missing');
assert(false, 'Should have errored');
} catch (callbackError) {
error = callbackError;
}
});
it('should call with error', function() {
assert(error instanceof Error);
});
it('should return status code', function() {
browser.assert.status(404);
});
it('should not indicate success', function() {
assert(!browser.success);
});
it('should capture response document', function() {
assert.equal(browser.source.trim(), 'Cannot GET /browser/missing'); // Express output
});
it('should return response document with the error', function() {
browser.assert.text('body', 'Cannot GET /browser/missing'); // Express output
});
});
describe('500', function() {
let error;
before(async function() {
brains.static('/browser/500', 'Ooops, something went wrong', { status: 500 });
try {
await browser.visit('/browser/500');
assert(false, 'Should have errored');
} catch (callbackError) {
error = callbackError;
}
});
it('should call callback with error', function() {
assert(error instanceof Error);
});
it('should return status code 500', function() {
browser.assert.status(500);
});
it('should not indicate success', function() {
assert(!browser.success);
});
it('should capture response document', function() {
assert.equal(browser.source, 'Ooops, something went wrong');
});
it('should return response document with the error', function() {
browser.assert.text('body', 'Ooops, something went wrong');
});
});
describe('empty page', function() {
before(function() {
brains.static('/browser/empty', '');
return browser.visit('/browser/empty');
});
it('should load document', function() {
assert(browser.body);
});
it('should indicate success', function() {
browser.assert.success();
});
});
describe('missing resource', function() {
const imgBrowser = new Browser();
before(async function() {
imgBrowser.features = 'img';
brains.static('/browser/missing-resource', `
<html>
<body>
<img>
<script>
var img = document.querySelector('img');
img.addEventListener('load', function() {
document.body.loaded = true;
});
img.addEventListener('error', function() {
document.body.error = true;
});
img.src = '/no-such.png';
</script>
</body>
</html>
`);
try {
await imgBrowser.visit('/browser/missing-resource');
assert(false, 'Should have errored');
} catch (callbackError) {
assert(true);
}
});
it('should load document', function() {
assert(imgBrowser.body);
});
it('should indicate successful loading', function() {
imgBrowser.assert.success();
});
it('should indicate resource failed to load', function() {
const resource = imgBrowser.resources[1];
assert.equal(resource.response.status, 404);
});
it('should fire error event on resource', function() {
imgBrowser.assert.evaluate('document.body.loaded', undefined);
imgBrowser.assert.evaluate('document.body.error', true);
});
after(function() {
imgBrowser.destroy();
});
});
});
describe('event emitter', function() {
describe('successful', function() {
it('should fire load event with document object', async function() {
let document;
browser.once('loaded', function(arg) {
document = arg;
});
await browser.visit('/browser/scripted');
assert(document.addEventListener);
});
});
describe('wait over', function() {
it('should fire idle event', function(done) {
browser.once('idle', done);
browser.location = '/browser/scripted';
browser.wait().done();
});
});
describe('error', function() {
it('should fire onerror event with error', async function() {
let error;
browser.once('error', function(arg) {
error = arg;
});
browser.location = '/browser/errored';
try {
await browser.wait();
} catch (ignore) {
assert(true);
}
assert(error.message && error.stack);
assert(/Cannot read property 'wrong'/.test(error.message));
});
});
});
});
describe('with options', function() {
describe('global', function() {
let newBrowser;
let originalFeatures;
before(function() {
originalFeatures = Browser.features;
Browser.features = 'no-scripts';
newBrowser = new Browser();
return newBrowser.visit('/browser/scripted');
});
it('should set browser options from global options', function() {
newBrowser.assert.text('title', 'Whatever');
});
after(function() {
newBrowser.destroy();
Browser.features = originalFeatures;
});
});
describe('user agent', function() {
before(function() {
brains.get('/browser/useragent', function(req, res) {
res.send(`<html><body>${req.headers['user-agent']}</body></html>`);
});
return browser.visit('/browser/useragent');
});
it('should send own version to server', function() {
browser.assert.text('body', /Zombie.js\/\d\.\d/);
});
it('should be accessible from navigator', function() {
assert(/Zombie.js\/\d\.\d/.test(browser.window.navigator.userAgent));
});
describe('specified', function() {
before(async function() {
browser.userAgent = 'imposter';
await browser.visit('/browser/useragent');
});
it('should send user agent to server', function() {
browser.assert.text('body', 'imposter');
});
it('should be accessible from navigator', function() {
assert.equal(browser.window.navigator.userAgent, 'imposter');
});
});
});
describe('custom headers', function() {
before(function() {
brains.get('/browser/custom_headers', function(req, res) {
res.send(`<html><body>${req.headers['x-custom-header']}</body></html>`);
});
browser.headers = {
'x-custom-header': 'dummy'
};
return browser.visit('/browser/custom_headers');
});
it('should send the custom header to server', function() {
browser.assert.text('body', 'dummy');
});
after(function() {
delete browser.headers['x-custom-header'];
});
});
});
describe('click link', function() {
before(async function() {
brains.static('/browser/head', `
<html>
<body>
<a href='/browser/headless'>Smash</a>
</body>
</html>
`);
brains.static('/browser/headless', `
<html>
<head>
<script src='/scripts/jquery.js'></script>
</head>
<body>
<script>
$(function() { document.title = 'The Dead' });
</script>
</body>
</html>
`);
await browser.visit('/browser/head');
await browser.clickLink('Smash');
});
it('should change location', function() {
browser.assert.url('/browser/headless');
});
it('should run all events', function() {
browser.assert.text('title', 'The Dead');
});
it('should return status code', function() {
browser.assert.success();
});
});
describe('click link text', function() {
before(async function() {
brains.static('/browser/linktext', `
<html>
<body>
<a href='/browser/linktextlocation'>not valid CSS selector syntax..</a>
</body>
</html>
`);
brains.static('/browser/linktextlocation', `
<html>
<head>
</head>
<body>
</body>
</html>
`);
await browser.visit('/browser/linktext');
await browser.clickLink('not valid CSS selector syntax..');
});
it('should change location', function() {
browser.assert.url('/browser/linktextlocation');
});
});
describe('follow redirect', function() {
before(async function() {
brains.static('/browser/killed', `
<html>
<body>
<form action='/browser/alive' method='post'>
<input type='submit' name='Submit'>
</form>
</body>
</html>
`);
brains.post('/browser/alive', function(req, res) {
res.redirect('/browser/killed');
});
await browser.visit('/browser/killed');
await browser.pressButton('Submit');
});
it('should be at initial location', function() {
browser.assert.url('/browser/killed');
});
it('should have followed a redirection', function() {
browser.assert.redirected();
});
it('should return status code', function() {
browser.assert.success();
});
});
describe('tag soup using HTML5 parser', function() {
before(function() {
brains.static('/browser/soup', `
<h1>Tag soup</h1>
<p>One paragraph
<p>And another
`);
return browser.visit('/browser/soup');
});
it('should parse to complete HTML', function() {
browser.assert.element('html head');
browser.assert.text('html body h1', 'Tag soup');
});
it('should close tags', function() {
browser.assert.text('body p', 'One paragraph And another');
});
});
describe('comments', function() {
it('should not show up as text node', async function() {
brains.static('/browser/comment', 'This is <!-- a comment, not --> plain text');
await browser.visit('/browser/comment');
browser.assert.text('body', 'This is plain text');
});
});
describe('load HTML string', function() {
before(function() {
return browser.load(`
<html>
<head>
<title>Load</title>
</head>
<body>
<div id='main'></div>
<script>document.title = document.title + ' html'</script>
</body>
</html>
`);
});
it('should use about:blank URL', function() {
browser.assert.url('about:blank');
});
it('should load document', function() {
browser.assert.element('#main');
});
it('should execute JavaScript', function() {
browser.assert.text('title', 'Load html');
});
});
describe('multiple visits to same URL', function() {
it('should load document from server', async function() {
await browser.visit('/browser/scripted');
browser.assert.text('body h1', 'Hello World');
await browser.visit('/');
browser.assert.text('title', 'Tap, Tap');
await browser.visit('/browser/scripted');
browser.assert.text('body h1', 'Hello World');
});
});
describe('windows', function() {
describe('open window to page', function() {
let window;
before(async function() {
brains.static('/browser/popup', '<h1>Popup window</h1>');
browser.tabs.closeAll();
await browser.visit('about:blank');
window = browser.window.open('http://example.com/browser/popup', 'popup');
await browser.wait();
});
it('should create new window', function() {
assert(window);
});
it('should set window name', function() {
assert.equal(window.name, 'popup');
});
it('should set window closed to false', function() {
assert.equal(window.closed, false);
});
it('should load page', function() {
browser.assert.text('h1', 'Popup window');
});
describe('call open on named window', function() {
let named;
before(function() {
named = browser.window.open(null, 'popup');
});
it('should return existing window', function() {
assert.equal(named, window);
});
it('should not change document location', function() {
assert.equal(named.location.href, 'http://example.com/browser/popup');
});
});
});
describe('open one window from another', function() {
before(function() {
brains.static('/browser/pop', `
<script>
document.title = window.open('/browser/popup', 'popup')
</script>
`);
brains.static('/browser/popup', '<h1>Popup window</h1>');
browser.tabs.closeAll();
return browser.visit('/browser/pop');
});
it('should open both windows', function() {
assert.equal(browser.tabs.length, 2);
assert.equal(browser.tabs[0].name, '');
assert.equal(browser.tabs[1].name, 'popup');
});
it('should switch to last window', function() {
assert.equal(browser.window, browser.tabs[1]);
});
it('should reference opener from opened window', function() {
assert.equal(browser.window.opener, browser.tabs[0]);
});
describe('and close it', function() {
let closedWindow;
before(function() {
closedWindow = browser.window;
browser.window.close();
});
it('should close that window', function() {
assert.equal(browser.tabs.length, 1);
assert.equal(browser.tabs[0].name, '');
assert(!browser.tabs[1]);
});
it('should set the `closed` property to `true`', function() {
assert.equal(closedWindow.closed, true);
});
it('should switch to last window', function() {
assert.equal(browser.window, browser.tabs[0]);
});
describe('and close main window', function() {
before(function() {
browser.open();
browser.window.close();
});
it('should keep that window', function() {
assert.equal(browser.tabs.length, 1);
assert.equal(browser.tabs[0].name, '');
assert.equal(browser.window, browser.tabs[0]);
});
describe('and close browser', function() {
it('should close all window', function() {
assert.equal(browser.tabs.length, 1);
browser.window.close();
assert.equal(browser.tabs.length, 0);
});
});
});
});
});
});
describe.skip('fork', function() {
let forked;
before(async function() {
brains.static('/browser/living', '<html><script>dead = "almost"</script></html>');
brains.static('/browser/dead', '<html><script>dead = "very"</script></html>');
await browser.visit('/browser/living');
browser.setCookie({ name: 'foo', value: 'bar' });
browser.localStorage('www.example.com').setItem('foo', 'bar');
browser.sessionStorage('www.example.com').setItem('baz', 'qux');
forked = browser.fork();
await forked.visit('/browser/dead');
forked.setCookie({ name: 'foo', value: 'baz' });
forked.localStorage('www.example.com').setItem('foo', 'new');
forked.sessionStorage('www.example.com').setItem('baz', 'value');
});
it('should have two browser objects', function() {
assert(forked && browser);
assert(browser !== forked);
});
it('should use same options', function() {
assert.equal(browser.debug, forked.debug);
assert.equal(browser.htmlParser, forked.htmlParser);
assert.equal(browser.maxWait, forked.maxWait);
assert.equal(browser.proxy, forked.proxy);
assert.equal(browser.referer, forked.referer);
assert.equal(browser.features, forked.features);
assert.equal(browser.silent, forked.silent);
assert.equal(browser.site, forked.site);
assert.equal(browser.userAgent, forked.userAgent);
assert.equal(browser.waitFor, forked.waitFor);
assert.equal(browser.name, forked.name);
});
it('should navigate independently', function() {
assert.equal(browser.location.href, 'http://example.com/browser/living');
assert.equal(forked.location, 'http://example.com/browser/dead');
});
it('should manipulate cookies independently', function() {
assert.equal(browser.getCookie({ name: 'foo' }), 'bar');
assert.equal(forked.getCookie({ name: 'foo' }), 'baz');
});
it('should manipulate storage independently', function() {
assert.equal(browser.localStorage('www.example.com').getItem('foo'), 'bar');
assert.equal(browser.sessionStorage('www.example.com').getItem('baz'), 'qux');
assert.equal(forked.localStorage('www.example.com').getItem('foo'), 'new');
assert.equal(forked.sessionStorage('www.example.com').getItem('baz'), 'value');
});
it('should have independent history', function() {
assert.equal('http://example.com/browser/living', browser.location.href);
assert.equal('http://example.com/browser/dead', forked.location.href);
});
it('should have independent globals', function() {
assert.equal(browser.evaluate('window.dead'), 'almost');
assert.equal(forked.evaluate('window.dead'), 'very');
});
describe('history', function() {
it('should clone from source', function() {
assert.equal('http://example.com/browser/dead', forked.location.href);
forked.window.history.back();
assert.equal('http://example.com/browser/living', forked.location.href);
});
});
});
after(function() {
browser.destroy();
});
});