node/test/parallel/test-dgram-create-socket-handle.js
James M Snell e48d58b8b2 assert: fix AssertionError, assign error code
Using `assert.AssertionError()` without the `new` keyword results
in a non-intuitive error:

```js
> assert.AssertionError({})
TypeError: Cannot assign to read only property 'name' of function 'function ok(value, message) {
  if (!value) fail(value, true, message, '==', assert.ok);
}'
    at Function.AssertionError (assert.js:45:13)
    at repl:1:8
    at realRunInThisContextScript (vm.js:22:35)
    at sigintHandlersWrap (vm.js:98:12)
    at ContextifyScript.Script.runInThisContext (vm.js:24:12)
    at REPLServer.defaultEval (repl.js:346:29)
    at bound (domain.js:280:14)
    at REPLServer.runBound [as eval] (domain.js:293:12)
    at REPLServer.onLine (repl.js:545:10)
    at emitOne (events.js:101:20)
>
```

The `assert.AssertionError()` can only be used correctly with `new`,
so this converts it into a proper ES6 class that will give an
appropriate error message.

This also associates the appropriate internal/errors code with all
`assert.AssertionError` instances and updates the appropriate test
cases.

PR-URL: https://github.com/nodejs/node/pull/12651
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
2017-05-04 07:18:17 -07:00

43 lines
1.0 KiB
JavaScript

'use strict';
const common = require('../common');
const assert = require('assert');
const dgram = require('dgram');
const UDP = process.binding('udp_wrap').UDP;
const _createSocketHandle = dgram._createSocketHandle;
// Throws if an "existing fd" is passed in.
assert.throws(() => {
_createSocketHandle(common.localhostIPv4, 0, 'udp4', 42);
}, common.expectsError({
code: 'ERR_ASSERTION',
message: /^false == true$/
}));
{
// Create a handle that is not bound.
const handle = _createSocketHandle(null, null, 'udp4');
assert(handle instanceof UDP);
assert.strictEqual(typeof handle.fd, 'number');
assert(handle.fd < 0);
}
{
// Create a bound handle.
const handle = _createSocketHandle(common.localhostIPv4, 0, 'udp4');
assert(handle instanceof UDP);
assert.strictEqual(typeof handle.fd, 'number');
if (!common.isWindows)
assert(handle.fd > 0);
}
{
// Return an error if binding fails.
const err = _createSocketHandle('localhost', 0, 'udp4');
assert.strictEqual(typeof err, 'number');
assert(err < 0);
}