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nodejs/test/parallel/test-net-write-after-end-nt.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

33 lines
928 B
JavaScript

'use strict';
const common = require('../common');
const assert = require('assert');
const net = require('net');
const { expectsError, mustCall } = common;
// This test ensures those errors caused by calling `net.Socket.write()`
// after sockets ending will be emitted in the next tick.
const server = net.createServer(mustCall((socket) => {
socket.end();
})).listen(() => {
const client = net.connect(server.address().port, () => {
let hasError = false;
client.on('error', mustCall((err) => {
hasError = true;
server.close();
}));
client.on('end', mustCall(() => {
const ret = client.write('hello', expectsError({
code: 'EPIPE',
message: 'This socket has been ended by the other party',
name: 'Error'
}));
assert.strictEqual(ret, false);
assert(!hasError, 'The error should be emitted in the next tick.');
}));
client.end();
});
});