requests.test.js
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/*jshint expr:true */
'use strict';
const Crawler = require('../lib/crawler');
const expect = require('chai').expect;
const nock = require('nock');
describe('Request tests', function() {
before(function() {
nock.cleanAll();
});
let crawler = null;
let scope = null;
const origin = 'http://www.whatever.com';
const path = '/get';
const headerPath = '/header';
beforeEach(function() {
crawler = new Crawler({
retries: 0,
json: true,
jQuery: false,
});
scope = nock(origin).get(path).reply(200).persist();
nock(origin).get(headerPath).reply(function(){
return [200, this.req.headers, { 'Content-Type': 'application/json' }];
});
});
afterEach(function() {
scope.persist(false);
crawler = null;
});
it('should crawl one request', function(end) {
crawler.queue({uri: `${origin}${path}`, callback: (error, res, done) => {
expect(error).to.be.null;
expect(res.statusCode).to.eql(200);
done();
end();
}});
});
it('should crawl two request request and execute the onDrain() callback', function(done) {
const callback = function(error, res,next) {
expect(error).to.be.null;
expect(res.statusCode).to.eql(200);
next();
};
crawler.on('drain',done);
crawler.queue({
uri: `${origin}${path}`,
callback: callback
});
crawler.queue({
uri: `${origin}${path}`,
callback: callback
});
});
it('should contain gzip header', function(end) {
crawler.queue({uri: `${origin}${headerPath}`, callback:function(error, res, done) {
expect(error).to.be.null;
expect(res.body['accept-encoding']).to.match(/gzip/);
done();
end();
}});
});
it('should use the provided user-agent', function(end) {
const ua = 'test/1.2';
crawler.queue({
uri: `${origin}${headerPath}`,
userAgent: ua,
callback:function(error, res, done) {
expect(error).to.be.null;
expect(res.body['user-agent']).to.eql(ua);
done();
end();
}
});
});
it('should replace the global User-Agent', function(end) {
crawler = new Crawler({
headers:{'User-Agent': 'test/1.2'},
jQuery: false,
json: true,
callback:function(error, res, done) {
expect(error).to.be.null;
expect(res.body['user-agent']).to.equal('foo/bar');
done();
end();
}
});
crawler.queue({uri: `${origin}${headerPath}`,headers:{'User-Agent': 'foo/bar'}});
});
it('should replace the global userAgent', function(end) {
crawler = new Crawler({
userAgent: 'test/1.2',
jQuery: false,
json: true,
callback:function(error, res, done) {
expect(error).to.be.null;
expect(res.body['user-agent']).to.equal('foo/bar');
done();
end();
}
});
crawler.queue({uri: `${origin}${headerPath}`, userAgent: 'foo/bar'});
});
it('should spoof the referer', function(end) {
const referer = 'http://spoofed.com';
crawler.queue({
uri: `${origin}${headerPath}`,
referer: referer,
callback:function(error, res, done) {
expect(error).to.be.null;
expect(res.body.referer).to.equal(referer);
done();
end();
}
});
});
});