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'use strict';
const common = require('../common');
const assert = require('assert');
const dgram = require('dgram');
const socket = dgram.createSocket('udp4');
socket.bind(0);
socket.on('listening', common.mustCall(() => {
const result = socket.setMulticastTTL(16);
assert.strictEqual(result, 16);
//Try to set an invalid TTL (valid ttl is > 0 and < 256)
assert.throws(() => {
socket.setMulticastTTL(1000);
}, /^Error: setMulticastTTL EINVAL$/);
assert.throws(() => {
socket.setMulticastTTL('foo');
}, /^TypeError: Argument must be a number$/);
//close the socket
socket.close();
}));
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