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nodejs/test/parallel/test-http-response-statuscode.js
Ruben Bridgewater e038d6a1cd
test: refactor common.expectsError
This completely refactors the `expectsError` behavior: so far it's
almost identical to `assert.throws(fn, object)` in case it was used
with a function as first argument. It had a magical property check
that allowed to verify a functions `type` in case `type` was passed
used in the validation object. This pattern is now completely removed
and `assert.throws()` should be used instead.

The main intent for `common.expectsError()` is to verify error cases
for callback based APIs. This is now more flexible by accepting all
validation possibilites that `assert.throws()` accepts as well. No
magical properties exist anymore. This reduces surprising behavior
for developers who are not used to the Node.js core code base.

This has the side effect that `common` is used significantly less
frequent.

PR-URL: https://github.com/nodejs/node/pull/31092
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
2019-12-31 15:54:20 +01:00

91 lines
2.1 KiB
JavaScript

'use strict';
const common = require('../common');
const assert = require('assert');
const http = require('http');
const Countdown = require('../common/countdown');
const MAX_REQUESTS = 13;
let reqNum = 0;
function test(res, header, code) {
assert.throws(() => {
res.writeHead(header);
}, {
code: 'ERR_HTTP_INVALID_STATUS_CODE',
name: 'RangeError',
message: `Invalid status code: ${code}`
});
}
const server = http.Server(common.mustCall(function(req, res) {
switch (reqNum) {
case 0:
test(res, -1, '-1');
break;
case 1:
test(res, Infinity, 'Infinity');
break;
case 2:
test(res, NaN, 'NaN');
break;
case 3:
test(res, {}, '{}');
break;
case 4:
test(res, 99, '99');
break;
case 5:
test(res, 1000, '1000');
break;
case 6:
test(res, '1000', '1000');
break;
case 7:
test(res, null, 'null');
break;
case 8:
test(res, true, 'true');
break;
case 9:
test(res, [], '[]');
break;
case 10:
test(res, 'this is not valid', 'this is not valid');
break;
case 11:
test(res, '404 this is not valid either', '404 this is not valid either');
break;
case 12:
assert.throws(() => { res.writeHead(); },
{
code: 'ERR_HTTP_INVALID_STATUS_CODE',
name: 'RangeError',
message: 'Invalid status code: undefined'
});
this.close();
break;
default:
throw new Error('Unexpected request');
}
res.statusCode = 200;
res.end();
}, MAX_REQUESTS));
server.listen();
const countdown = new Countdown(MAX_REQUESTS, () => server.close());
server.on('listening', function makeRequest() {
http.get({
port: this.address().port
}, (res) => {
assert.strictEqual(res.statusCode, 200);
res.on('end', () => {
countdown.dec();
reqNum = MAX_REQUESTS - countdown.remaining;
if (countdown.remaining > 0)
makeRequest.call(this);
});
res.resume();
});
});