node/test/parallel/test-pipe-outgoing-message-data-emitted-after-ended.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

37 lines
948 B
JavaScript

'use strict';
const common = require('../common');
const http = require('http');
const stream = require('stream');
// Verify that when piping a stream to an `OutgoingMessage` (or a type that
// inherits from `OutgoingMessage`), if data is emitted after the
// `OutgoingMessage` was closed - a `write after end` error is raised
class MyStream extends stream {}
const server = http.createServer(common.mustCall(function(req, res) {
const myStream = new MyStream();
myStream.pipe(res);
process.nextTick(common.mustCall(() => {
res.end();
myStream.emit('data', 'some data');
res.on('error', common.expectsError({
code: 'ERR_STREAM_WRITE_AFTER_END',
name: 'Error'
}));
process.nextTick(common.mustCall(() => server.close()));
}));
}));
server.listen(0);
server.on('listening', common.mustCall(function() {
http.request({
port: server.address().port,
method: 'GET',
path: '/'
}).end();
}));