node/test/parallel/test-http-outgoing-renderHeaders.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

51 lines
1.2 KiB
JavaScript

'use strict';
// Flags: --expose-internals
require('../common');
const assert = require('assert');
const kOutHeaders = require('internal/http').kOutHeaders;
const http = require('http');
const OutgoingMessage = http.OutgoingMessage;
{
const outgoingMessage = new OutgoingMessage();
outgoingMessage._header = {};
assert.throws(
() => outgoingMessage._renderHeaders(),
{
code: 'ERR_HTTP_HEADERS_SENT',
name: 'Error',
message: 'Cannot render headers after they are sent to the client'
}
);
}
{
const outgoingMessage = new OutgoingMessage();
outgoingMessage[kOutHeaders] = null;
const result = outgoingMessage._renderHeaders();
assert.deepStrictEqual(result, {});
}
{
const outgoingMessage = new OutgoingMessage();
outgoingMessage[kOutHeaders] = {};
const result = outgoingMessage._renderHeaders();
assert.deepStrictEqual(result, {});
}
{
const outgoingMessage = new OutgoingMessage();
outgoingMessage[kOutHeaders] = {
host: ['host', 'nodejs.org'],
origin: ['Origin', 'localhost']
};
const result = outgoingMessage._renderHeaders();
assert.deepStrictEqual(result, {
host: 'nodejs.org',
Origin: 'localhost'
});
}