138 lines
3.2 KiB
JavaScript
138 lines
3.2 KiB
JavaScript
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'use strict';
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const request = require('supertest');
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const assert = require('assert');
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const Koa = require('../..');
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const http = require('http');
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describe('ctx.flushHeaders()', () => {
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it('should set headersSent', () => {
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const app = new Koa();
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app.use((ctx, next) => {
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ctx.body = 'Body';
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ctx.status = 200;
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ctx.flushHeaders();
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assert.equal(ctx.res.headersSent, true);
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});
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const server = app.listen();
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return request(server)
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.get('/')
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.expect(200)
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.expect('Body');
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});
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it('should allow a response afterwards', () => {
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const app = new Koa();
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app.use((ctx, next) => {
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ctx.status = 200;
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ctx.res.setHeader('Content-Type', 'text/plain');
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ctx.flushHeaders();
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ctx.body = 'Body';
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});
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const server = app.listen();
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return request(server)
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.get('/')
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.expect(200)
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.expect('Content-Type', 'text/plain')
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.expect('Body');
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});
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it('should send the correct status code', () => {
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const app = new Koa();
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app.use((ctx, next) => {
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ctx.status = 401;
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ctx.res.setHeader('Content-Type', 'text/plain');
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ctx.flushHeaders();
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ctx.body = 'Body';
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});
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const server = app.listen();
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return request(server)
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.get('/')
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.expect(401)
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.expect('Content-Type', 'text/plain')
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.expect('Body');
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});
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it('should fail to set the headers after flushHeaders', async () => {
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const app = new Koa();
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app.use((ctx, next) => {
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ctx.status = 401;
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ctx.res.setHeader('Content-Type', 'text/plain');
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ctx.flushHeaders();
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ctx.body = '';
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try {
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ctx.set('X-Shouldnt-Work', 'Value');
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} catch (err) {
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ctx.body += 'ctx.set fail ';
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}
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try {
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ctx.status = 200;
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} catch (err) {
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ctx.body += 'ctx.status fail ';
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}
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try {
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ctx.length = 10;
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} catch (err) {
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ctx.body += 'ctx.length fail';
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}
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});
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const server = app.listen();
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const res = await request(server)
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.get('/')
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.expect(401)
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.expect('Content-Type', 'text/plain')
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.expect('ctx.set fail ctx.status fail ctx.length fail');
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assert.equal(res.headers['x-shouldnt-work'], undefined, 'header set after flushHeaders');
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});
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it('should flush headers first and delay to send data', done => {
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const PassThrough = require('stream').PassThrough;
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const app = new Koa();
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app.use(ctx => {
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ctx.type = 'json';
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ctx.status = 200;
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ctx.headers['Link'] = '</css/mycss.css>; as=style; rel=preload, <https://img.craftflair.com>; rel=preconnect; crossorigin';
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const stream = ctx.body = new PassThrough();
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ctx.flushHeaders();
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setTimeout(() => {
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stream.end(JSON.stringify({ message: 'hello!' }));
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}, 10000);
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});
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app.listen(function(err){
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if (err) return done(err);
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const port = this.address().port;
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http.request({
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port
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})
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.on('response', res => {
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const onData = () => done(new Error('boom'));
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res.on('data', onData);
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// shouldn't receive any data for a while
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setTimeout(() => {
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res.removeListener('data', onData);
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done();
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}, 1000);
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})
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.on('error', done)
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.end();
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});
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});
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});
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