47 lines
1.1 KiB
JavaScript
47 lines
1.1 KiB
JavaScript
'use strict';
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const common = require('../common');
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const assert = require('assert');
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const dgram = require('dgram');
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function pingPongTest(port, host) {
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const server = dgram.createSocket('udp4', common.mustCall((msg, rinfo) => {
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assert.strictEqual(msg.toString('ascii'), 'PING');
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server.send('PONG', 0, 4, rinfo.port, rinfo.address);
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}));
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server.on('error', function(e) {
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throw e;
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});
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server.on('listening', function() {
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console.log(`server listening on ${port}`);
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const client = dgram.createSocket('udp4');
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client.on('message', function(msg) {
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assert.strictEqual(msg.toString('ascii'), 'PONG');
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client.close();
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server.close();
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});
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client.on('error', function(e) {
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throw e;
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});
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console.log(`Client sending to ${port}`);
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function clientSend() {
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client.send('PING', 0, 4, port, 'localhost');
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}
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clientSend();
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});
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server.bind(port, host);
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return server;
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}
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const server = pingPongTest(common.PORT, 'localhost');
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server.on('close', common.mustCall(pingPongTest.bind(undefined, common.PORT)));
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