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pipe.js
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pipe.js
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'use strict';
const request = require('../support/client');
const express = require('../support/express');
const app = express();
const fs = require('fs');
const bodyParser = require('body-parser');
let http = require('http');
if (process.env.HTTP2_TEST) {
http = require('http2');
}
app.use(bodyParser.json());
app.get('/', (req, res) => {
fs.createReadStream('test/node/fixtures/user.json').pipe(res);
});
app.get('/redirect', (req, res) => {
res.set('Location', '/').sendStatus(302);
});
app.get('/badRedirectNoLocation', (req, res) => {
res.set('Location', '').sendStatus(302);
});
app.post('/', (req, res) => {
if (process.env.HTTP2_TEST) {
// body-parser does not support http2 yet.
// This section can be remove after body-parser supporting http2.
res.set('content-type', 'application/json');
req.pipe(res);
} else {
res.send(req.body);
}
});
let base = 'http://localhost';
let server;
before(function listen(done) {
server = http.createServer(app);
server.listen(0, function listening() {
base += `:${server.address().port}`;
done();
});
});
describe('request pipe', () => {
const destPath = 'test/node/fixtures/tmp.json';
after(function removeTmpfile(done) {
fs.unlink(destPath, done);
});
it('should act as a writable stream', done => {
const req = request.post(base);
const stream = fs.createReadStream('test/node/fixtures/user.json');
req.type('json');
req.on('response', res => {
res.body.should.eql({ name: 'tobi' });
done();
});
stream.pipe(req);
});
it('end() stops piping', done => {
const stream = fs.createWriteStream(destPath);
request.get(base).end((err, res) => {
try {
res.pipe(stream);
return done(new Error('Did not prevent nonsense pipe'));
} catch (err2) {
/* expected error */
}
done();
});
});
it('should act as a readable stream', done => {
const stream = fs.createWriteStream(destPath);
let responseCalled = false;
const req = request.get(base);
req.type('json');
req.on('response', res => {
res.status.should.eql(200);
responseCalled = true;
});
stream.on('finish', () => {
JSON.parse(fs.readFileSync(destPath, 'utf8')).should.eql({
name: 'tobi'
});
responseCalled.should.be.true();
done();
});
req.pipe(stream);
});
it('should follow redirects', done => {
const stream = fs.createWriteStream(destPath);
let responseCalled = false;
const req = request.get(base + '/redirect');
req.type('json');
req.on('response', res => {
res.status.should.eql(200);
responseCalled = true;
});
stream.on('finish', () => {
JSON.parse(fs.readFileSync(destPath, 'utf8')).should.eql({
name: 'tobi'
});
responseCalled.should.be.true();
done();
});
req.pipe(stream);
});
it('should not throw on bad redirects', done => {
const stream = fs.createWriteStream(destPath);
let responseCalled = false;
let errorCalled = false;
const req = request.get(base + '/badRedirectNoLocation');
req.type('json');
req.on('response', res => {
responseCalled = true;
});
req.on('error', err => {
err.message.should.eql('No location header for redirect');
errorCalled = true;
stream.end();
});
stream.on('finish', () => {
responseCalled.should.be.false();
errorCalled.should.be.true();
done();
});
req.pipe(stream);
});
});