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test.js
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//
// Deps
//
var Url = require('url');
var Zlib = require('zlib');
var Lab = require('lab');
var Code = require('code');
var Hapi = require('hapi');
var Request = require('request');
var Nock = require('nock');
//
// Test shortcuts
//
var lab = exports.lab = Lab.script();
var describe = lab.describe;
var it = lab.it;
var before = lab.before;
var after = lab.after;
var expect = Code.expect;
//
// The plugin module we will be tesing
//
var PrerenderPlugin = require('./');
//
// Helper to start a server with the plugin registered with teh given options.
//
function initServer(opt, done) {
var server = new Hapi.Server();
server.connection({ host: '127.0.0.1', port: 8888 });
server.route({
method: 'GET',
path: '/foo.css',
handler: function (request, reply) {
return reply('body { color: pink; }');
}
});
server.route({
method: '*',
path: '/{p*}',
handler: function (request, reply) {
return reply('ok');
}
});
server.register({
register: PrerenderPlugin,
options: opt
}, function (err) {
expect(err).to.not.exist;
});
server.start(done);
return server;
}
//
// Tests
//
describe('hapi-prerender', function () {
it('can be added as a plugin to hapi', function (done) {
var server = new Hapi.Server();
server.connection({ host: '127.0.0.1', port: 8888 });
server.register(PrerenderPlugin, function (err) {
expect(err).to.not.exist;
done();
});
});
describe('with default options', function () {
var server;
before(function (done) {
server = initServer({}, done);
});
after(function (done) {
server.stop(done);
});
it('should return a prerendered response when known bot', function (done) {
Nock('http://service.prerender.io')
.get('/http://127.0.0.1:8888/foo?bar=true')
.reply(301, '<html><body>prerendered!</body></html>', {
'X-Prerender': 'foo'
});
Request({
uri: 'http://127.0.0.1:8888/foo?bar=true',
headers: { 'User-Agent': 'baiduspider' }
}, function (err, resp) {
expect(err).to.not.exist;
expect(resp.statusCode).to.equal(301);
expect(resp.headers).to.exist;
expect(resp.headers['x-prerender']).to.equal('foo');
expect(resp.body).to.equal('<html><body>prerendered!</body></html>');
done();
});
});
it('should return prerendered response if _escaped_fragment_', function (done) {
Nock('http://service.prerender.io')
.get('/http://127.0.0.1:8888/?_escaped_fragment_=')
.reply(301, '<html><body>prerendered!</body></html>', {
'X-Prerender': 'foo'
});
Request({
uri: 'http://127.0.0.1:8888/?_escaped_fragment_=',
headers: { 'User-Agent': 'Not a known bot' }
}, function (err, resp) {
expect(err).to.not.exist;
expect(resp.statusCode).to.equal(301);
expect(resp.headers).to.exist;
expect(resp.headers['x-prerender']).to.equal('foo');
expect(resp.body).to.equal('<html><body>prerendered!</body></html>');
done();
});
});
it('should ignore request if bad url with _escaped_fragment_', function (done) {
Request({
uri: 'http://127.0.0.1:8888/?query=params?_escaped_fragment_=',
method: 'POST',
headers: { 'User-Agent': 'not a bot' }
}, function (err, resp) {
expect(err).to.not.exist;
expect(resp.statusCode).to.equal(200);
expect(resp.headers).to.exist;
expect(resp.body).to.equal('ok');
done();
});
});
it('should ignore request if its not a GET', function (done) {
Request({
uri: 'http://127.0.0.1:8888/?_escaped_fragment_=',
method: 'POST',
headers: { 'User-Agent': 'baiduspider' }
}, function (err, resp) {
expect(err).to.not.exist;
expect(resp.statusCode).to.equal(200);
expect(resp.headers).to.exist;
expect(resp.body).to.equal('ok');
done();
});
});
it('should ignore request if user is not a bot', function (done) {
Request({
uri: 'http://127.0.0.1:8888/',
headers: { 'User-Agent': 'not a bot' }
}, function (err, resp) {
expect(err).to.not.exist;
expect(resp.statusCode).to.equal(200);
expect(resp.headers).to.exist;
expect(resp.body).to.equal('ok');
done();
});
});
it('should ignore if user is a bot, but is requesting a resource file', function (done) {
Request({
uri: 'http://127.0.0.1:8888/foo.css',
headers: { 'User-Agent': 'baiduspider' }
}, function (err, resp) {
expect(err).to.not.exist;
expect(resp.statusCode).to.equal(200);
expect(resp.headers).to.exist;
expect(resp.body).to.equal('body { color: pink; }');
done();
});
});
it('should return a prerendered gzipped response', function (done) {
Zlib.gzip(new Buffer('<html></html>', 'utf-8'), function (err, zipped) {
Nock('http://service.prerender.io')
.get('/http://127.0.0.1:8888/foo')
.reply(200, [ zipped ], { 'content-encoding': 'gzip' });
Request({
uri: 'http://127.0.0.1:8888/foo',
headers: { 'User-Agent': 'baiduspider' }
}, function (err, resp) {
expect(err).to.not.exist;
expect(resp.statusCode).to.equal(200);
expect(resp.headers).to.exist;
expect(resp.headers['content-encoding']).to.not.exist;
expect(resp.body).to.equal('<html></html>');
done();
});
});
});
it('should build the correct api url for the Cloudflare Flexible SSL support');
it('should build the correct api url for the Heroku SSL Addon support with single value');
it('should build the correct api url for the Heroku SSL Addon support with double value');
});
describe('with token option', function () {
var server;
before(function (done) {
server = initServer({ token: 'MY_TOKEN' }, done);
});
after(function (done) {
server.stop(done);
});
it('should include X-Prerender-Token header in request', function (done) {
Nock('http://service.prerender.io')
.matchHeader('X-Prerender-Token', 'MY_TOKEN')
.get('/http://127.0.0.1:8888/?_escaped_fragment_=')
.reply(301, '<html><body>prerendered!</body></html>');
Request({
uri: 'http://127.0.0.1:8888/?_escaped_fragment_=',
headers: { 'User-Agent': 'Not a known bot' }
}, function (err, resp) {
expect(err).to.not.exist;
expect(resp.statusCode).to.equal(301);
expect(resp.headers).to.exist;
expect(resp.body).to.equal('<html><body>prerendered!</body></html>');
done();
});
});
});
describe('with serviceUrl option', function () {
var server;
before(function (done) {
server = initServer({ serviceUrl: 'http://127.0.0.1:3000/' }, done);
});
after(function (done) {
server.stop(done);
});
it('should send request to custom service', function (done) {
Nock('http://127.0.0.1:3000')
.get('/http://127.0.0.1:8888/?_escaped_fragment_=')
.reply(301, '<html><body>prerendered!</body></html>');
Request({
uri: 'http://127.0.0.1:8888/?_escaped_fragment_=',
headers: { 'User-Agent': 'Not a known bot' }
}, function (err, resp) {
expect(err).to.not.exist;
expect(resp.statusCode).to.equal(301);
expect(resp.headers).to.exist;
expect(resp.body).to.equal('<html><body>prerendered!</body></html>');
done();
});
});
});
describe('with serviceUrl and token set via env', function () {
var server;
before(function (done) {
process.env.PRERENDER_TOKEN = 'MY_TOKEN';
process.env.PRERENDER_SERVICE_URL = 'http://foo';
server = initServer({}, done);
});
after(function (done) {
server.stop(done);
delete process.env.PRERENDER_TOKEN;
delete process.env.PRERENDER_SERVICE_URL;
});
it('should send request to given serviceUrl including token', function (done) {
Nock('http://foo')
.matchHeader('X-Prerender-Token', 'MY_TOKEN')
.get('/http://127.0.0.1:8888/?_escaped_fragment_=')
.reply(301, '<html><body>prerendered!</body></html>');
Request({
uri: 'http://127.0.0.1:8888/?_escaped_fragment_=',
headers: { 'User-Agent': 'Not a known bot' }
}, function (err, resp) {
expect(err).to.not.exist;
expect(resp.statusCode).to.equal(301);
expect(resp.headers).to.exist;
expect(resp.body).to.equal('<html><body>prerendered!</body></html>');
done();
});
});
});
describe('with beforeRender and afterRender options', function () {
var server;
var cache = {};
before(function (done) {
server = initServer({
beforeRender: function (req, done) {
done(null, cache[req.url.href]);
},
afterRender: function (req, prerendered) {
cache[req.url.href] = prerendered;
}
}, done);
});
after(function (done) {
server.stop(done);
});
it('should use prerender service before we cache', function (done) {
Nock('http://service.prerender.io')
.get('/http://127.0.0.1:8888/?_escaped_fragment_=')
.reply(200, 'prerendered!');
Request({
uri: 'http://127.0.0.1:8888/?_escaped_fragment_=',
headers: { 'User-Agent': 'not a bot' }
}, function (err, resp) {
expect(err).to.not.exist;
expect(resp.statusCode).to.equal(200);
expect(resp.headers).to.exist;
expect(resp.body).to.equal('prerendered!');
done();
});
});
it('should use cached prerendered response after we\'ve cached', function (done) {
Request({
uri: 'http://127.0.0.1:8888/?_escaped_fragment_=',
headers: { 'User-Agent': 'not a bot' }
}, function (err, resp) {
expect(err).to.not.exist;
expect(resp.statusCode).to.equal(200);
expect(resp.headers).to.exist;
expect(resp.body).to.equal('prerendered!');
done();
});
});
});
describe('with whitelist option', function () {
it('should ignore if url is not whitelisted');
it('should return a prerendered response if url is whitelisted');
});
describe('with blacklist option', function () {
it('should ignore if the url is blacklisted');
it('should return a prerendered response if url is not blacklisted');
it('should ignore if the referer is blacklisted');
it('should return a prerendered response if the referer is not blacklisted');
});
});