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node-red/test/nodes/core/io/32-udpout_spec.js

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/**
* Copyright JS Foundation and other contributors, http://js.foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
var dgram = require("dgram");
var should = require("should");
var helper = require("../../helper.js");
var udpNode = require("../../../../nodes/core/io/32-udp.js");
describe('UDP out Node', function() {
var port = 9200;
before(function(done) {
helper.startServer(done);
});
after(function() {
});
afterEach(function() {
helper.unload();
});
function recvData(data, done) {
var sock = dgram.createSocket('udp4');
sock.on('message', function(msg, rinfo) {
msg.should.deepEqual(data);
done();
});
sock.bind(port, '127.0.0.1');
port++;
}
function checkSend(proto, val0, val1, decode, dest_in_msg, done) {
var dst_ip = dest_in_msg ? undefined : "127.0.0.1";
var dst_port = dest_in_msg ? undefined : port;
var flow = [{id:"n1", type:"udp out",
addr:dst_ip, port:dst_port, iface: "",
ipv:proto, outport: "random",
base64:decode, multicast:false,
wires:[] }];
helper.load(udpNode, flow, function() {
var n1 = helper.getNode("n1");
var msg = {};
if(decode) {
msg.payload = Buffer("hello").toString('base64');
}
else {
msg.payload = "hello";
}
if(dest_in_msg) {
msg.ip = "127.0.0.1";
msg.port = port;
}
recvData(val1, done);
n1.receive(msg);
});
}
it('should send IPv4 data', function(done) {
checkSend('udp4', 'hello', Buffer('hello'), false, false, done);
});
it('should send IPv4 data (base64)', function(done) {
checkSend('udp4', 'hello', Buffer('hello'), true, false, done);
});
it('should send IPv4 data with dest from msg', function(done) {
checkSend('udp4', 'hello', Buffer('hello'), false, true, done);
});
});