add test script for "udp out" node (#1467)

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

@@ -0,0 +1,85 @@
+/**
+ * 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);
+    });
+
+});