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// Flags: --expose-internals
'use strict';
const common = require('../common');
const assert = require('assert');
const dgram = require('dgram');
const { internalBinding } = require('internal/test/binding');
const { UV_UNKNOWN } = internalBinding('uv');
const { getSystemErrorName } = require('util');
const { kStateSymbol } = require('internal/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[kStateSymbol].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);
});
{
const socket = dgram.createSocket('udp4');
socket.on('message', common.mustNotCall('Should not receive any messages.'));
socket.bind(common.mustCall(() => {
const port = socket.address().port;
const callback = common.mustCall((err) => {
socket.close();
assert.strictEqual(err.code, 'UNKNOWN');
assert.strictEqual(getSystemErrorName(err.errno), 'UNKNOWN');
assert.strictEqual(err.syscall, 'send');
assert.strictEqual(err.address, common.localhostIPv4);
assert.strictEqual(err.port, port);
assert.strictEqual(
err.message,
`${err.syscall} ${err.code} ${err.address}:${err.port}`
);
});
socket[kStateSymbol].handle.send = function() {
return UV_UNKNOWN;
};
socket.send('foo', port, common.localhostIPv4, callback);
}));
}