basic streaming body

This commit is contained in:
David Frank 2015-01-26 21:58:52 +08:00
parent 78853fc544
commit f57ebe10df
3 changed files with 57 additions and 19 deletions

View File

@ -27,7 +27,7 @@ function Fetch(url, opts) {
return new Fetch(url, opts);
if (!Fetch.Promise) {
throw new Error('native promise missing, set Fetch.Promise to your favorite substitute');
throw new Error('native promise missing, set Fetch.Promise to your favorite alternative');
}
return new Fetch.Promise(function(resolve, reject) {

View File

@ -0,0 +1,34 @@
var http = require('http');
var parse = require('url').parse;
module.exports = TestServer;
function TestServer() {
this.server = http.createServer(this.router);
this.port = 30001;
this.hostname = '127.0.0.1';
this.server.on('error', function(err) {
console.log(err.stack);
});
}
TestServer.prototype.start = function(cb) {
this.server.listen(this.port, this.hostname, cb);
}
TestServer.prototype.stop = function(cb) {
this.server.close(cb);
}
TestServer.prototype.router = function(req, res) {
var p = parse(req.url).pathname;
if (p === '/hello') {
res.statusCode = 200;
res.setHeader('Content-Type', 'text/plain');
res.end('world');
}
}

View File

@ -4,41 +4,38 @@ var chai = require('chai');
var cap = require('chai-as-promised');
chai.use(cap);
var expect = chai.expect;
var http = require('http');
var https = require('https');
var bluebird = require('bluebird');
var then = require('promise');
var stream = require('stream');
var TestServer = require('./server');
// test subjects
var fetch = require('../index.js');
// test with native promise on node 0.11, and bluebird for node 0.10
fetch.Promise = fetch.Promise || bluebird;
var url, opts, local;
var url, opts, local, base;
describe('Fetch', function() {
before(function(done) {
// TODO: create a server instance for testing
local = http.createServer(function(req, res) {
res.statusCode = 200;
res.setHeader('Content-Type', 'text/plain');
res.write('hello world');
res.end();
});
local.listen(30001, done);
local = new TestServer();
base = 'http://' + local.hostname + ':' + local.port;
local.start(done);
});
after(function(done) {
local.close(done);
local.stop(done);
});
it('should return a promise', function() {
url = 'http://example.com/';
expect(fetch(url)).to.be.an.instanceof(fetch.Promise);
var p = fetch(url);
expect(p).to.be.an.instanceof(fetch.Promise);
expect(p).to.have.property('then');
});
it('should custom promise', function() {
it('should allow custom promise', function() {
url = 'http://example.com/';
var old = fetch.Promise;
fetch.Promise = then;
@ -46,8 +43,13 @@ describe('Fetch', function() {
fetch.Promise = old;
});
it('should reject with error if url is relative', function() {
url = 'some/path';
it('should reject with error if url is protocol relative', function() {
url = '//example.com/';
return expect(fetch(url)).to.eventually.be.rejectedWith(Error);
});
it('should reject with error if url is relative path', function() {
url = '/some/path';
return expect(fetch(url)).to.eventually.be.rejectedWith(Error);
});
@ -56,11 +58,13 @@ describe('Fetch', function() {
return expect(fetch(url)).to.eventually.be.rejectedWith(Error);
});
it('should resolve with result', function() {
url = 'http://127.0.0.1:30001/';
it('should resolve status code, headers, body correctly', function() {
url = base + '/hello';
return fetch(url).then(function(res) {
expect(res.status).to.equal(200);
expect(res.headers).to.include({ 'content-type': 'text/plain' });
expect(res.body).to.be.an.instanceof(stream.Transform);
});
});
});