node/test/parallel/test-net-socket-destroy-send.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

29 lines
861 B
JavaScript

'use strict';
const common = require('../common');
const net = require('net');
const assert = require('assert');
const server = net.createServer();
server.listen(0, common.mustCall(function() {
const port = server.address().port;
const conn = net.createConnection(port);
conn.on('connect', common.mustCall(function() {
// Test destroy returns this, even on multiple calls when it short-circuits.
assert.strictEqual(conn, conn.destroy().destroy());
conn.on('error', common.expectsError({
code: 'ERR_STREAM_DESTROYED',
message: 'Cannot call write after a stream was destroyed',
name: 'Error'
}));
conn.write(Buffer.from('kaboom'), common.expectsError({
code: 'ERR_STREAM_DESTROYED',
message: 'Cannot call write after a stream was destroyed',
name: 'Error'
}));
server.close();
}));
}));