800 lines
18 KiB
JavaScript
800 lines
18 KiB
JavaScript
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'use strict';
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const request = require('supertest');
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const statuses = require('statuses');
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const assert = require('assert');
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const Koa = require('../..');
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const fs = require('fs');
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describe('app.respond', () => {
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beforeEach(() => {
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global.console = jest.genMockFromModule('console');
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});
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afterEach(() => {
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global.console = require('console');
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});
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describe('when ctx.respond === false', () => {
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it('should function (ctx)', () => {
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const app = new Koa();
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app.use(ctx => {
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ctx.body = 'Hello';
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ctx.respond = false;
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const res = ctx.res;
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res.statusCode = 200;
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setImmediate(() => {
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res.setHeader('Content-Type', 'text/plain');
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res.end('lol');
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});
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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('lol');
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});
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it('should ignore set header after header sent', () => {
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const app = new Koa();
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app.use(ctx => {
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ctx.body = 'Hello';
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ctx.respond = false;
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const res = ctx.res;
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res.statusCode = 200;
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res.setHeader('Content-Type', 'text/plain');
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res.end('lol');
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ctx.set('foo', 'bar');
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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('lol')
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.expect(res => {
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assert(!res.headers.foo);
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});
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});
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it('should ignore set status after header sent', () => {
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const app = new Koa();
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app.use(ctx => {
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ctx.body = 'Hello';
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ctx.respond = false;
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const res = ctx.res;
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res.statusCode = 200;
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res.setHeader('Content-Type', 'text/plain');
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res.end('lol');
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ctx.status = 201;
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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('lol');
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});
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});
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describe('when this.type === null', () => {
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it('should not send Content-Type header', async() => {
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const app = new Koa();
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app.use(ctx => {
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ctx.body = '';
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ctx.type = null;
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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(200);
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assert.equal(res.headers.hasOwnProperty('Content-Type'), false);
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});
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});
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describe('when HEAD is used', () => {
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it('should not respond with the body', async() => {
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const app = new Koa();
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app.use(ctx => {
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ctx.body = 'Hello';
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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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.head('/')
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.expect(200);
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assert.equal(res.headers['content-type'], 'text/plain; charset=utf-8');
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assert.equal(res.headers['content-length'], '5');
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assert(!res.text);
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});
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it('should keep json headers', async() => {
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const app = new Koa();
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app.use(ctx => {
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ctx.body = { hello: 'world' };
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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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.head('/')
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.expect(200);
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assert.equal(res.headers['content-type'], 'application/json; charset=utf-8');
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assert.equal(res.headers['content-length'], '17');
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assert(!res.text);
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});
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it('should keep string headers', async() => {
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const app = new Koa();
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app.use(ctx => {
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ctx.body = 'hello world';
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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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.head('/')
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.expect(200);
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assert.equal(res.headers['content-type'], 'text/plain; charset=utf-8');
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assert.equal(res.headers['content-length'], '11');
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assert(!res.text);
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});
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it('should keep buffer headers', async() => {
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const app = new Koa();
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app.use(ctx => {
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ctx.body = Buffer.from('hello world');
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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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.head('/')
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.expect(200);
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assert.equal(res.headers['content-type'], 'application/octet-stream');
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assert.equal(res.headers['content-length'], '11');
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assert(!res.text);
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});
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it('should respond with a 404 if no body was set', () => {
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const app = new Koa();
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app.use(ctx => {
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});
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const server = app.listen();
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return request(server)
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.head('/')
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.expect(404);
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});
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it('should respond with a 200 if body = ""', () => {
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const app = new Koa();
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app.use(ctx => {
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ctx.body = '';
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});
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const server = app.listen();
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return request(server)
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.head('/')
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.expect(200);
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});
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it('should not overwrite the content-type', () => {
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const app = new Koa();
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app.use(ctx => {
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ctx.status = 200;
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ctx.type = 'application/javascript';
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});
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const server = app.listen();
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return request(server)
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.head('/')
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.expect('content-type', /application\/javascript/)
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.expect(200);
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});
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});
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describe('when no middleware are present', () => {
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it('should 404', () => {
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const app = new Koa();
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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(404);
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});
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});
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describe('when res has already been written to', () => {
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it('should not cause an app error', () => {
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const app = new Koa();
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app.use((ctx, next) => {
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const res = ctx.res;
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ctx.status = 200;
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res.setHeader('Content-Type', 'text/html');
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res.write('Hello');
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setTimeout(() => res.end('Goodbye'), 0);
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});
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app.on('error', err => { throw err; });
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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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});
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it('should send the right body', () => {
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const app = new Koa();
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app.use((ctx, next) => {
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const res = ctx.res;
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ctx.status = 200;
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res.setHeader('Content-Type', 'text/html');
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res.write('Hello');
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return new Promise(resolve => {
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setTimeout(() => {
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res.end('Goodbye');
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resolve();
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}, 0);
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});
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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('HelloGoodbye');
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});
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});
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describe('when .body is missing', () => {
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describe('with status=400', () => {
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it('should respond with the associated status message', () => {
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const app = new Koa();
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app.use(ctx => {
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ctx.status = 400;
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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(400)
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.expect('Content-Length', '11')
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.expect('Bad Request');
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});
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});
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describe('with status=204', () => {
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it('should respond without a body', async() => {
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const app = new Koa();
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app.use(ctx => {
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ctx.status = 204;
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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(204)
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.expect('');
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assert.equal(res.headers.hasOwnProperty('content-type'), false);
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});
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});
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describe('with status=205', () => {
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it('should respond without a body', async() => {
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const app = new Koa();
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app.use(ctx => {
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ctx.status = 205;
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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(205)
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.expect('');
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assert.equal(res.headers.hasOwnProperty('content-type'), false);
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});
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});
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describe('with status=304', () => {
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it('should respond without a body', async() => {
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const app = new Koa();
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app.use(ctx => {
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ctx.status = 304;
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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(304)
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.expect('');
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assert.equal(res.headers.hasOwnProperty('content-type'), false);
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});
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});
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describe('with custom status=700', () => {
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it('should respond with the associated status message', async() => {
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const app = new Koa();
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statuses['700'] = 'custom status';
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app.use(ctx => {
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ctx.status = 700;
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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(700)
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.expect('custom status');
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assert.equal(res.res.statusMessage, 'custom status');
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});
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});
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describe('with custom statusMessage=ok', () => {
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it('should respond with the custom status message', async() => {
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const app = new Koa();
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app.use(ctx => {
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ctx.status = 200;
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ctx.message = 'ok';
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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(200)
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.expect('ok');
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assert.equal(res.res.statusMessage, 'ok');
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});
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});
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describe('with custom status without message', () => {
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it('should respond with the status code number', () => {
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const app = new Koa();
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app.use(ctx => {
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ctx.res.statusCode = 701;
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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(701)
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.expect('701');
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});
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});
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});
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describe('when .body is a null', () => {
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it('should respond 204 by default', async() => {
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const app = new Koa();
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app.use(ctx => {
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ctx.body = null;
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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(204)
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.expect('');
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assert.equal(res.headers.hasOwnProperty('content-type'), false);
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});
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it('should respond 204 with status=200', async() => {
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const app = new Koa();
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app.use(ctx => {
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ctx.status = 200;
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ctx.body = null;
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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(204)
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.expect('');
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assert.equal(res.headers.hasOwnProperty('content-type'), false);
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});
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it('should respond 205 with status=205', async() => {
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const app = new Koa();
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app.use(ctx => {
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ctx.status = 205;
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ctx.body = null;
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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(205)
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.expect('');
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assert.equal(res.headers.hasOwnProperty('content-type'), false);
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});
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it('should respond 304 with status=304', async() => {
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const app = new Koa();
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app.use(ctx => {
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ctx.status = 304;
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ctx.body = null;
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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(304)
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.expect('');
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assert.equal(res.headers.hasOwnProperty('content-type'), false);
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});
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});
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describe('when .body is a string', () => {
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it('should respond', () => {
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const app = new Koa();
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app.use(ctx => {
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ctx.body = 'Hello';
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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('Hello');
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});
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});
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describe('when .body is a Buffer', () => {
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it('should respond', () => {
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const app = new Koa();
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app.use(ctx => {
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ctx.body = Buffer.from('Hello');
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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(Buffer.from('Hello'));
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});
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});
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describe('when .body is a Stream', () => {
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it('should respond', async() => {
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const app = new Koa();
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app.use(ctx => {
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ctx.body = fs.createReadStream('package.json');
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ctx.set('Content-Type', 'application/json; charset=utf-8');
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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('Content-Type', 'application/json; charset=utf-8');
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const pkg = require('../../package');
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assert.equal(res.headers.hasOwnProperty('content-length'), false);
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assert.deepEqual(res.body, pkg);
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});
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it('should strip content-length when overwriting', async() => {
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const app = new Koa();
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app.use(ctx => {
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ctx.body = 'hello';
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ctx.body = fs.createReadStream('package.json');
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ctx.set('Content-Type', 'application/json; charset=utf-8');
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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('Content-Type', 'application/json; charset=utf-8');
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const pkg = require('../../package');
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assert.equal(res.headers.hasOwnProperty('content-length'), false);
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assert.deepEqual(res.body, pkg);
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});
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it('should keep content-length if not overwritten', async() => {
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const app = new Koa();
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app.use(ctx => {
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ctx.length = fs.readFileSync('package.json').length;
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ctx.body = fs.createReadStream('package.json');
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ctx.set('Content-Type', 'application/json; charset=utf-8');
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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('Content-Type', 'application/json; charset=utf-8');
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const pkg = require('../../package');
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assert.equal(res.headers.hasOwnProperty('content-length'), true);
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assert.deepEqual(res.body, pkg);
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});
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it('should keep content-length if overwritten with the same stream',
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async() => {
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const app = new Koa();
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app.use(ctx => {
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ctx.length = fs.readFileSync('package.json').length;
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const stream = fs.createReadStream('package.json');
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ctx.body = stream;
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ctx.body = stream;
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ctx.set('Content-Type', 'application/json; charset=utf-8');
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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('Content-Type', 'application/json; charset=utf-8');
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const pkg = require('../../package');
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assert.equal(res.headers.hasOwnProperty('content-length'), true);
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assert.deepEqual(res.body, pkg);
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});
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it('should handle errors', done => {
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const app = new Koa();
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app.use(ctx => {
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ctx.set('Content-Type', 'application/json; charset=utf-8');
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ctx.body = fs.createReadStream('does not exist');
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});
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const server = app.listen();
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request(server)
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.get('/')
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.expect('Content-Type', 'text/plain; charset=utf-8')
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.expect(404)
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.end(done);
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});
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it('should handle errors when no content status', () => {
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const app = new Koa();
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app.use(ctx => {
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ctx.status = 204;
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ctx.body = fs.createReadStream('does not exist');
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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(204);
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});
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it('should handle all intermediate stream body errors', done => {
|
|
const app = new Koa();
|
|
|
|
app.use(ctx => {
|
|
ctx.body = fs.createReadStream('does not exist');
|
|
ctx.body = fs.createReadStream('does not exist');
|
|
ctx.body = fs.createReadStream('does not exist');
|
|
});
|
|
|
|
const server = app.listen();
|
|
|
|
request(server)
|
|
.get('/')
|
|
.expect(404)
|
|
.end(done);
|
|
});
|
|
});
|
|
|
|
describe('when .body is an Object', () => {
|
|
it('should respond with json', () => {
|
|
const app = new Koa();
|
|
|
|
app.use(ctx => {
|
|
ctx.body = { hello: 'world' };
|
|
});
|
|
|
|
const server = app.listen();
|
|
|
|
return request(server)
|
|
.get('/')
|
|
.expect('Content-Type', 'application/json; charset=utf-8')
|
|
.expect('{"hello":"world"}');
|
|
});
|
|
});
|
|
|
|
describe('when an error occurs', () => {
|
|
it('should emit "error" on the app', done => {
|
|
const app = new Koa();
|
|
|
|
app.use(ctx => {
|
|
throw new Error('boom');
|
|
});
|
|
|
|
app.on('error', err => {
|
|
assert.equal(err.message, 'boom');
|
|
done();
|
|
});
|
|
|
|
request(app.callback())
|
|
.get('/')
|
|
.end(() => {});
|
|
});
|
|
|
|
describe('with an .expose property', () => {
|
|
it('should expose the message', () => {
|
|
const app = new Koa();
|
|
|
|
app.use(ctx => {
|
|
const err = new Error('sorry!');
|
|
err.status = 403;
|
|
err.expose = true;
|
|
throw err;
|
|
});
|
|
|
|
return request(app.callback())
|
|
.get('/')
|
|
.expect(403, 'sorry!');
|
|
});
|
|
});
|
|
|
|
describe('with a .status property', () => {
|
|
it('should respond with .status', () => {
|
|
const app = new Koa();
|
|
|
|
app.use(ctx => {
|
|
const err = new Error('s3 explodes');
|
|
err.status = 403;
|
|
throw err;
|
|
});
|
|
|
|
return request(app.callback())
|
|
.get('/')
|
|
.expect(403, 'Forbidden');
|
|
});
|
|
});
|
|
|
|
it('should respond with 500', () => {
|
|
const app = new Koa();
|
|
|
|
app.use(ctx => {
|
|
throw new Error('boom!');
|
|
});
|
|
|
|
const server = app.listen();
|
|
|
|
return request(server)
|
|
.get('/')
|
|
.expect(500, 'Internal Server Error');
|
|
});
|
|
|
|
it('should be catchable', () => {
|
|
const app = new Koa();
|
|
|
|
app.use((ctx, next) => {
|
|
return next().then(() => {
|
|
ctx.body = 'Hello';
|
|
}).catch(() => {
|
|
ctx.body = 'Got error';
|
|
});
|
|
});
|
|
|
|
app.use((ctx, next) => {
|
|
throw new Error('boom!');
|
|
});
|
|
|
|
const server = app.listen();
|
|
|
|
return request(server)
|
|
.get('/')
|
|
.expect(200, 'Got error');
|
|
});
|
|
});
|
|
|
|
describe('when status and body property', () => {
|
|
it('should 200', () => {
|
|
const app = new Koa();
|
|
|
|
app.use(ctx => {
|
|
ctx.status = 304;
|
|
ctx.body = 'hello';
|
|
ctx.status = 200;
|
|
});
|
|
|
|
const server = app.listen();
|
|
|
|
return request(server)
|
|
.get('/')
|
|
.expect(200)
|
|
.expect('hello');
|
|
});
|
|
|
|
it('should 204', async() => {
|
|
const app = new Koa();
|
|
|
|
app.use(ctx => {
|
|
ctx.status = 200;
|
|
ctx.body = 'hello';
|
|
ctx.set('content-type', 'text/plain; charset=utf8');
|
|
ctx.status = 204;
|
|
});
|
|
|
|
const server = app.listen();
|
|
|
|
const res = await request(server)
|
|
.get('/')
|
|
.expect(204);
|
|
|
|
assert.equal(res.headers.hasOwnProperty('content-type'), false);
|
|
});
|
|
});
|
|
});
|