CAPAUT-254 Add udp tests and node mock

.gitignore

@@ -48,3 +48,5 @@ Thumbs.db
 *.mov
 *.wmv
 
+.nyc_output
+

test/systacomfort2-spec.js

@@ -6,13 +6,16 @@
  * Copyright (c) captica GmbH est. 2022 / MIT License
  */
 const { expect } = require('chai')
+const dgram = require('node:dgram')
 const systaComfort2Node = require('../systacomfort2/systacomfort2')
 const { dataParser, SYSTACOMFORT_VALUES }  = require('../systacomfort2/dataparser')
+const { assert } = require('node:console')
 
 const MESSAGE_INIT = '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'
 const MESSAGE_INIT_ANSWER = 'AJe+LI4NzW0AAAAAAQAAABGcjK0='
 const MESSAGE_DATA = 'AJe+LI4NzG0JCQwAMtoAAAEAAAAAAAAAOgEAAFYBAADU/v//SwMAAEUDAABCAwAA1P7//9T+///U/v//AAAAAAAAAABrAwAAXwIAAFoCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAFgCAADNAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABAAAAyAAAAOYAAACgAAAAAQAAAAAAAAAAAAAAAAAAAAEAAAAAAAAA+gAAAAAAAAAGAAAAAAAAACYCAADIAAAAZAAAABQAAAB4AAAAAAAAADIAAABQAAAAZAAAAAUAAAACAAAAMgAAAB4AAAAAAAAAAAAAAAAAAAADAAAAMgAAAPQBAAAEAAAAMgAAAHISAADYAQAAAAAAAAAAAAABAAAAyAAAANwAAACWAAAAAAAAAAAAAAAAAAAAIwcAACQHAAAAAAAAXgEAAAAAAAANAAAAAAAAALwCAADIAAAAZAAAABQAAAB4AAAAAAAAAAAAAADIAAAAZAAAAAUAAAACAAAAMgAAAB4AAAAAAAAAAAAAAAAAAAADAAAAMgAAAPQBAAAEAAAAMgAAACMHAAAAAAAAAAAAAAAAAAABAAAAyAAAANwAAACWAAAAAAAAAAAAAAAAAAAAIwcAACQHAABeAQAAAAAAAA0AAAAAAAAAvAIAAMgAAABkAAAAFAAAAHgAAAAAAAAAAAAAAMgAAABkAAAABQAAAAIAAAAAAAAAAAAAAAMAAAAyAAAA9AEAAAQAAAAyAAAAIwcAAAAAAABYAgAAigIAAAEAAABkAAAAZAAAAAAAAAAyAAAAUgMAAAAAAAAFAAAAtgMAAAAAAAAyAAAAAAAAAJABAABkAAAAAQAAAAEAAAADAAAAAwAAAAMAAAAPAAAAMgAAAKQAAAAAAAAAAAAAABMAAAAFAAAAAAAAAAAAAAAjHAAAIwAAAAVZAAANAAAAEgAAAB51AAAcAAAAAAAAAAAAAAAAAAAALAEAAIoCAABkAAAAGQAAAAAAAAAAAAAA+gAAABgBAAAAAAAAAAAAAAAAAAC8AgAAAAAAAMgAAABkAAAAAgAAAMgAAAAeAAAAAAAAABQAAAAeAAAAHgAAADIAAAAeAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA/wAAAAAAAAAAAAAAAQAAAAEAAAAHAAAAAAAAAAAAAAAHAAAAAAAAAAAAAAAAAAAAAAAAAAcAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA/h54Ug=='
 const TOPIC_PREFIX = 'my/custom/topic/prefix'
+const CONFIG = { listenPort: 44556 }
 const OUTPUT_MESSAGE_PAYLOAD = {        
     BOILER_START_COUNTER: 22789,            
     BOILER_WORKING_HOURS: 7203,            
@@ -34,15 +37,51 @@ const OUTPUT_MESSAGE_PAYLOAD = {
  * Node-RED registration/handling
  */
 describe('SystaComfort2 - Node-RED node', () => {        
+    // Constructor will be announced on register. We have to keep the object for later tests
+    let testNodeConstructor = null
+    let closeCallback = null
     // Check node registration first. We fake the RED-objec to capture the registration part
     systaComfort2Node({
         nodes: {
-            registerType: function(name, obj) {
+            registerType: function(name, nodeConstructor) {
                 it('should be registered on node-RED as a new node type', () => {
                     expect(name).to.equal('systacomfort2')
-                    expect(obj).to.not.be.undefined
+                    expect(nodeConstructor).to.not.be.undefined                                                            
+                })
+                testNodeConstructor = nodeConstructor
+            },
+            createNode: function(context, config) {                    
+                // Extend context with additional special function (normally provided by node red context object)            
+                context.on = function(eventName, callback) {
+                    closeCallback = callback
+                }
+                context.status = function(statusObj) {
+                    it('status object should be present', () => {                                                            
+                        expect(configObj).to.not.be.undefined
                     }) 
                 }
+                it('should be provided the same config object', () => {                                                            
+                    expect(config).to.be.equal(CONFIG)                    
+                })                
+            }
+        }
+    })
+    /**
+     * Call the node constructor
+     */
+    it('should be possible to call node constructor and access udp server', () => {
+        try {
+            testNodeConstructor(CONFIG)
+            // Create a udp client to connect to service
+            const client = dgram.createSocket('udp4')
+            client.connect(CONFIG.listenPort, (err) => {
+                expect(err).to.be.undefined            
+                client.close()
+            })
+        }
+        finally {
+            // Don't forget to send close event after tests 
+            closeCallback()
         }
     })    
 })