test: add coverage for dgram send() errors

This commit adds code coverage for emitted and callback errors
for dgram's Socket#send() method.

PR-URL: https://github.com/nodejs/node/pull/11248
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
This commit is contained in:
cjihrig 2017-02-08 16:17:27 -05:00
parent 90ab68bc34
commit b32ae9e74d

View File

@ -0,0 +1,37 @@
'use strict';
const common = require('../common');
const assert = require('assert');
const dgram = require('dgram');
const mockError = new Error('mock DNS error');
function getSocket(callback) {
const socket = dgram.createSocket('udp4');
socket.on('message', common.mustNotCall('Should not receive any messages.'));
socket.bind(common.mustCall(() => {
socket._handle.lookup = function(address, callback) {
process.nextTick(callback, mockError);
};
callback(socket);
}));
return socket;
}
getSocket((socket) => {
socket.on('error', common.mustCall((err) => {
socket.close();
assert.strictEqual(err, mockError);
}));
socket.send('foo', socket.address().port, 'localhost');
});
getSocket((socket) => {
const callback = common.mustCall((err) => {
socket.close();
assert.strictEqual(err, mockError);
});
socket.send('foo', socket.address().port, 'localhost', callback);
});