koa-lite/test/response/status.js

107 lines
3.1 KiB
JavaScript

'use strict';
const response = require('../helpers/context').response;
const request = require('supertest');
const statuses = require('statuses');
const assert = require('assert');
const Koa = require('../..');
describe('res.status=', () => {
describe('when a status code', () => {
describe('and valid', () => {
it('should set the status', () => {
const res = response();
res.status = 403;
assert.equal(res.status, 403);
});
it('should not throw', () => {
assert.doesNotThrow(() => {
response().status = 403;
});
});
});
describe('and invalid', () => {
it('should throw', () => {
assert.throws(() => {
response().status = 999;
}, 'invalid status code: 999');
});
});
describe('and custom status', () => {
beforeEach(() => statuses['700'] = 'custom status');
it('should set the status', () => {
const res = response();
res.status = 700;
assert.equal(res.status, 700);
});
it('should not throw', () => {
assert.doesNotThrow(() => response().status = 700);
});
});
});
describe('when a status string', () => {
it('should throw', () => {
assert.throws(() => response().status = 'forbidden', 'status code must be a number');
});
});
function strip(status){
it('should strip content related header fields', async () => {
const app = new Koa();
app.use(ctx => {
ctx.body = { foo: 'bar' };
ctx.set('Content-Type', 'application/json; charset=utf-8');
ctx.set('Content-Length', '15');
ctx.set('Transfer-Encoding', 'chunked');
ctx.status = status;
assert(null == ctx.response.header['content-type']);
assert(null == ctx.response.header['content-length']);
assert(null == ctx.response.header['transfer-encoding']);
});
const res = await request(app.callback())
.get('/')
.expect(status);
assert.equal(res.headers.hasOwnProperty('content-type'), false);
assert.equal(res.headers.hasOwnProperty('content-length'), false);
assert.equal(res.headers.hasOwnProperty('content-encoding'), false);
assert.equal(res.text.length, 0);
});
it('should strip content releated header fields after status set', async () => {
const app = new Koa();
app.use(ctx => {
ctx.status = status;
ctx.body = { foo: 'bar' };
ctx.set('Content-Type', 'application/json; charset=utf-8');
ctx.set('Content-Length', '15');
ctx.set('Transfer-Encoding', 'chunked');
});
const res = await request(app.callback())
.get('/')
.expect(status);
assert.equal(res.headers.hasOwnProperty('content-type'), false);
assert.equal(res.headers.hasOwnProperty('content-length'), false);
assert.equal(res.headers.hasOwnProperty('content-encoding'), false);
assert.equal(res.text.length, 0);
});
}
describe('when 204', () => strip(204));
describe('when 205', () => strip(205));
describe('when 304', () => strip(304));
});