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Merge pull request #3497 from Steve-Mcl/mqtt-unit-tests

Add unit tests for MQTT nodes
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Stephen McLaughlin 2022-03-23 10:10:57 +00:00 committed by GitHub
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/* These tests are only supposed to be executed at development time (for now)*/
"use strict";
const should = require("should");
const helper = require("node-red-node-test-helper");
const mqttNodes = require("nr-test-utils").require("@node-red/nodes/core/network/10-mqtt.js");
const BROKER_HOST = process.env.MQTT_BROKER_SERVER || "localhost";
const BROKER_PORT = process.env.MQTT_BROKER_PORT || 1883;
//By default, MQTT tests are disabled. Set ENV VAR NR_MQTT_TESTS to "1" or "true" to enable
const skipTests = process.env.NR_MQTT_TESTS != "true" && process.env.NR_MQTT_TESTS != "1";
describe('MQTT Nodes', function () {
before(function (done) {
helper.startServer(done);
});
after(function (done) {
helper.stopServer(done);
});
afterEach(function () {
try {
helper.unload();
} catch (error) { }
});
it('should be loaded and have default values', function (done) {
this.timeout = 2000;
const { flow, nodes } = buildBasicMQTTSendRecvFlow({ id: "mqtt.broker", name: "mqtt_broker", autoConnect: false }, { id: "mqtt.in", topic: "in_topic" }, { id: "mqtt.out", topic: "out_topic" });
helper.load(mqttNodes, flow, function () {
try {
const mqttIn = helper.getNode("mqtt.in");
const mqttOut = helper.getNode("mqtt.out");
const mqttBroker = helper.getNode("mqtt.broker");
should(mqttIn).be.type("object", "mqtt in node should be an object")
mqttIn.should.have.property('broker', nodes.mqtt_broker.id); //should be the id of the broker node
mqttIn.should.have.property('datatype', 'utf8'); //default: 'utf8'
mqttIn.should.have.property('isDynamic', false); //default: false
mqttIn.should.have.property('inputs', 0); //default: 0
mqttIn.should.have.property('qos', 2); //default: 2
mqttIn.should.have.property('topic', "in_topic");
mqttIn.should.have.property('wires', [["helper.node"]]);
should(mqttOut).be.type("object", "mqtt out node should be an object")
mqttOut.should.have.property('broker', nodes.mqtt_broker.id); //should be the id of the broker node
mqttOut.should.have.property('topic', "out_topic");
should(mqttBroker).be.type("object", "mqtt broker node should be an object")
mqttBroker.should.have.property('broker', BROKER_HOST);
mqttBroker.should.have.property('port', BROKER_PORT);
mqttBroker.should.have.property('brokerurl');
// mqttBroker.should.have.property('autoUnsubscribe', true);//default: true
mqttBroker.should.have.property('autoConnect', false);//Set "autoConnect:false" in brokerOptions
mqttBroker.should.have.property('options');
mqttBroker.options.should.have.property('clean', true);
mqttBroker.options.should.have.property('clientId');
mqttBroker.options.clientId.should.containEql('nodered_');
mqttBroker.options.should.have.property('keepalive').type("number");
mqttBroker.options.should.have.property('reconnectPeriod').type("number");
done();
} catch (error) {
done(error)
}
});
});
if (skipTests) {
it('skipping MQTT tests. Set env var "NR_MQTT_TESTS=true" to enable. Requires a v5 capable broker running on localhost:1883.', function (done) {
done();
});
}
/** Conditional test runner (only run if skipTests=false) */
function itConditional(title, test) {
return !skipTests ? it(title, test) : it.skip(title, test);
}
//#region ################### BASIC TESTS ################### #//
itConditional('basic send and receive tests', function (done) {
if (skipTests) { return this.skip() }
this.timeout = 2000;
const options = {}
options.sendMsg = {
topic: nextTopic(),
payload: "hello",
qos: 0
}
options.expectMsg = Object.assign({}, options.sendMsg);
testSendRecv({}, { datatype: "auto", topicType: "static" }, {}, options, { done: done });
});
itConditional('should send JSON and receive string (auto)', function (done) {
if (skipTests) { return this.skip() }
this.timeout = 2000;
const options = {}
options.sendMsg = {
topic: nextTopic(),
payload: '{"prop":"value1", "num":1}',
qos: 1
}
options.expectMsg = Object.assign({}, options.sendMsg);
testSendRecv({}, { datatype: "auto", topicType: "static" }, {}, options, { done: done });
})
itConditional('should send JSON and receive string (utf8)', function (done) {
if (skipTests) { return this.skip() }
this.timeout = 2000;
const options = {}
options.sendMsg = {
topic: nextTopic(),
payload: '{"prop":"value2", "num":2}',
qos: 2
}
options.expectMsg = Object.assign({}, options.sendMsg);
testSendRecv({}, { datatype: "utf8", topicType: "static" }, {}, options, { done: done });
});
itConditional('should send JSON and receive Object (json)', function (done) {
if (skipTests) { return this.skip() }
this.timeout = 2000;
const options = {}
options.sendMsg = {
topic: nextTopic(),
payload: '{"prop":"value3", "num":3}'// send a string ...
}
options.expectMsg = Object.assign({}, options.sendMsg, { payload: { "prop": "value3", "num": 3 } });//expect an object
testSendRecv({}, { datatype: "json", topicType: "static" }, {}, options, { done: done });
});
itConditional('should send String and receive Buffer (buffer)', function (done) {
if (skipTests) { return this.skip() }
this.timeout = 2000;
const options = {}
options.sendMsg = {
topic: nextTopic(),
payload: "a b c" //send string ...
}
options.expectMsg = Object.assign({}, options.sendMsg, { payload: Buffer.from(options.sendMsg.payload) });//expect Buffer.from(msg.payload)
testSendRecv({}, { datatype: "buffer", topicType: "static" }, {}, options, { done: done });
});
itConditional('should send utf8 Buffer and receive String (auto)', function (done) {
if (skipTests) { return this.skip() }
this.timeout = 2000;
const options = {}
options.sendMsg = {
topic: nextTopic(),
payload: Buffer.from([0x78, 0x20, 0x79, 0x20, 0x7a]) // "x y z"
}
options.expectMsg = Object.assign({}, options.sendMsg, { payload: "x y z" });//set expected payload to "x y z"
testSendRecv({}, { datatype: "auto", topicType: "static" }, {}, options, { done: done });
});
itConditional('should send non utf8 Buffer and receive Buffer (auto)', function (done) {
if (skipTests) { return this.skip() }
this.timeout = 2000;
const options = {}
const hooks = { done: done, beforeLoad: null, afterLoad: null, afterConnect: null }
options.sendMsg = {
topic: nextTopic(),
payload: Buffer.from([0xC0, 0xC1, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF]) //non valid UTF8
}
options.expectMsg = Object.assign({}, options.sendMsg);
testSendRecv({}, { datatype: "auto", topicType: "static" }, {}, options, hooks);
});
itConditional('should send/receive all v5 flags and settings', function (done) {
if (skipTests) { return this.skip() }
this.timeout = 2000;
const t = nextTopic();
const options = {}
const hooks = { done: done, beforeLoad: null, afterLoad: null, afterConnect: null }
options.sendMsg = {
topic: t + "/command", payload: Buffer.from("v5"), qos: 1, retain: true,
responseTopic: t + "/response",
userProperties: { prop1: "val1" },
contentType: "application/json",
correlationData: Buffer.from([1, 2, 3]),
payloadFormatIndicator: true,
messageExpiryInterval: 2000,
}
options.expectMsg = Object.assign({}, options.sendMsg);
options.expectMsg.payload = options.expectMsg.payload.toString(); //auto mode + payloadFormatIndicator should make a string
delete options.expectMsg.payloadFormatIndicator; //Seems mqtt.js only publishes payloadFormatIndicator the will msg
const inOptions = {
datatype: "auto", topicType: "static",
qos: 1, nl: false, rap: true, rh: 1
}
testSendRecv({ protocolVersion: 5 }, inOptions, {}, options, hooks);
});
itConditional('should subscribe dynamically via action', function (done) {
if (skipTests) { return this.skip() }
this.timeout = 2000;
const options = {}
const hooks = { done: done, beforeLoad: null, afterLoad: null, afterConnect: null }
options.sendMsg = {
topic: nextTopic(), payload: "abc"
}
options.expectMsg = Object.assign({}, options.sendMsg);
testSendRecv({ protocolVersion: 5 }, { datatype: "utf8", topicType: "dynamic" }, {}, options, hooks);
});
//#endregion BASIC TESTS
//#region ################### ADVANCED TESTS ################### #//
itConditional('should connect via "connect" action', function (done) {
if (skipTests) { return this.skip() }
this.timeout = 2000;
const options = {}
const hooks = { done: null, beforeLoad: null, afterLoad: null, afterConnect: null }
hooks.afterLoad = (helperNode, mqttBroker, mqttIn, mqttOut) => {
mqttBroker.should.have.property("autoConnect", false);
mqttBroker.should.have.property("connecting", false);//should not attempt to connect (autoConnect:false)
mqttIn.receive({ "action": "connect" }); //now request connect action
return true; //handled
}
hooks.afterConnect = (helperNode, mqttBroker, mqttIn, mqttOut) => {
done();//if we got here, it connected :)
return true;
}
testSendRecv({ protocolVersion: 5, autoConnect: false }, { datatype: "utf8", topicType: "dynamic" }, {}, options, hooks);
});
itConditional('should disconnect via "disconnect" action', function (done) {
if (skipTests) { return this.skip() }
this.timeout = 2000;
const options = {}
const hooks = { done: done, beforeLoad: null, afterLoad: null, afterConnect: null }
hooks.beforeLoad = (flow) => { //add a status node pointed at MQTT Out node (to watch for connection status change)
flow.push({ "id": "status.node", "type": "status", "name": "status_node", "scope": ["mqtt.out"], "wires": [["helper.node"]] });//add status node to watch mqtt_out
}
hooks.afterLoad = (helperNode, mqttBroker, mqttIn, mqttOut) => {
mqttBroker.should.have.property("autoConnect", true);
mqttBroker.should.have.property("connecting", true);//should be trying to connect (autoConnect:true)
return true; //handled
}
hooks.afterConnect = (helperNode, mqttBroker, mqttIn, mqttOut) => {
//connected - now add the "on" handler then send "disconnect" action
helperNode.on("input", function (msg) {
try {
msg.should.have.property("status");
msg.status.should.have.property("text");
msg.status.text.should.containEql('disconnect');
done(); //it disconnected - yey!
} catch (error) {
done(error)
}
})
mqttOut.receive({ "action": "disconnect" });
return true; //handed
}
testSendRecv({ protocolVersion: 5 }, null, {}, options, hooks);
});
itConditional('should publish birth message', function (done) {
if (skipTests) { return this.skip() }
this.timeout = 2000;
const baseTopic = nextTopic();
const brokerOptions = {
protocolVersion: 4,
birthTopic: baseTopic + "/birth",
birthPayload: "broker connected",
birthQos: 2,
}
const options = {};
const hooks = { done: done, beforeLoad: null, afterLoad: null, afterConnect: null };
options.expectMsg = {
topic: brokerOptions.birthTopic,
payload: brokerOptions.birthPayload,
qos: brokerOptions.birthQos
};
testSendRecv(brokerOptions, { topic: brokerOptions.birthTopic }, {}, options, hooks);
});
itConditional('should publish close message', function (done) {
if (skipTests) { return this.skip() }
this.timeout = 2000;
const baseTopic = nextTopic();
const broker1Options = { id: "mqtt.broker1" }//Broker 1 - stays connected to receive the close message
const broker2Options = { id: "mqtt.broker2", closeTopic: baseTopic + "/close", closePayload: '{"msg":"close"}', closeQos: 1, }//Broker 2 - connects to same broker but has a LWT message.
const { flow } = buildBasicMQTTSendRecvFlow(broker1Options, { broker: broker1Options.id, topic: broker2Options.closeTopic, datatype: "json" }, { broker: broker2Options.id })
flow.push(buildMQTTBrokerNode(broker2Options.id, broker2Options.name, BROKER_HOST, BROKER_PORT, broker2Options)); //add second broker
helper.load(mqttNodes, flow, function () {
const helperNode = helper.getNode("helper.node");
const mqttOut = helper.getNode("mqtt.out");
const mqttBroker1 = helper.getNode("mqtt.broker1");
const mqttBroker2 = helper.getNode("mqtt.broker2");
waitBrokerConnect([mqttBroker1, mqttBroker2], function connected() {
//connected - add the on handler and call to disconnect
helperNode.on("input", function (msg) {
try {
msg.should.have.property("topic", broker2Options.closeTopic);
msg.should.have.property('payload', JSON.parse(broker2Options.closePayload));
msg.should.have.property('qos', broker2Options.closeQos);
done();
} catch (error) {
done(error)
}
})
mqttOut.receive({ "action": "disconnect" });//close broker2
})
});
});
itConditional('should publish will message', function (done) {
if (skipTests) { return this.skip() }
this.timeout = 2000;
const baseTopic = nextTopic();
const broker1Options = { id: "mqtt.broker1" }//Broker 1 - stays connected to receive the will message
const broker2Options = { id: "mqtt.broker2", willTopic: baseTopic + "/will", willPayload: '{"msg":"will"}', willQos: 2, }//Broker 2 - connects to same broker but has a LWT message.
const { flow } = buildBasicMQTTSendRecvFlow(broker1Options, { broker: broker1Options.id, topic: broker2Options.willTopic, datatype: "utf8" }, { broker: broker2Options.id })
flow.push(buildMQTTBrokerNode(broker2Options.id, broker2Options.name, BROKER_HOST, BROKER_PORT, broker2Options)); //add second broker
helper.load(mqttNodes, flow, function () {
const helperNode = helper.getNode("helper.node");
const mqttBroker1 = helper.getNode("mqtt.broker1");
const mqttBroker2 = helper.getNode("mqtt.broker2");
waitBrokerConnect([mqttBroker1, mqttBroker2], function connected() {
//connected - add the on handler and call to disconnect
helperNode.on("input", function (msg) {
try {
msg.should.have.property("topic", broker2Options.willTopic);
msg.should.have.property('payload', broker2Options.willPayload);
msg.should.have.property('qos', broker2Options.willQos);
done();
} catch (error) {
done(error)
}
});
mqttBroker2.client.end(true); //force closure
})
});
});
itConditional('should publish will message with V5 properties', function (done) {
if (skipTests) { return this.skip() }
// return this.skip(); //Issue receiving v5 props on will msg. Issue raised here: https://github.com/mqttjs/MQTT.js/issues/1455
this.timeout = 2000;
const baseTopic = nextTopic();
//Broker 1 - stays connected to receive the will message when broker 2 is killed
const broker1Options = { id: "mqtt.broker1", name: "mqtt_broker1", protocolVersion: 5, datatype: "utf8" }
//Broker 2 - connects to same broker but has a LWT message. Broker 2 gets killed shortly after connection so that the will message is sent from broker
const broker2Options = {
id: "mqtt.broker2", name: "mqtt_broker2", protocolVersion: 5,
willTopic: baseTopic + "/will",
willPayload: '{"msg":"will"}',
willQos: 2,
willMsg: {
contentType: 'application/json',
userProps: { "will": "value" },
respTopic: baseTopic + "/resp",
correl: Buffer.from("abc"),
expiry: 2000,
payloadFormatIndicator: true
}
}
const expectMsg = {
topic: broker2Options.willTopic,
payload: broker2Options.willPayload,
qos: broker2Options.willQos,
contentType: broker2Options.willMsg.contentType,
userProperties: broker2Options.willMsg.userProps,
responseTopic: broker2Options.willMsg.respTopic,
correlationData: broker2Options.willMsg.correl,
messageExpiryInterval: broker2Options.willMsg.expiry,
// payloadFormatIndicator: broker2Options.willMsg.payloadFormatIndicator,
};
const { flow, nodes } = buildBasicMQTTSendRecvFlow(broker1Options, { broker: broker1Options.id, topic: broker2Options.willTopic, datatype: "utf8" }, { broker: broker2Options.id })
flow.push(buildMQTTBrokerNode(broker2Options.id, broker2Options.name, nodes.mqtt_broker1.broker, nodes.mqtt_broker1.port, broker2Options)) //add second broker with will msg set
helper.load(mqttNodes, flow, function () {
const helperNode = helper.getNode("helper.node");
const mqttBroker1 = helper.getNode("mqtt.broker1");
const mqttBroker2 = helper.getNode("mqtt.broker2");
waitBrokerConnect([mqttBroker1, mqttBroker2], function connected() {
//connected - add the on handler and call to disconnect
helperNode.on("input", function (msg) {
try {
compareMsgToExpected(msg, expectMsg);
done();
} catch (error) {
done(error)
}
});
mqttBroker2.client.end(true); //force closure
})
});
});
//#endregion ADVANCED TESTS
});
//#region ################### HELPERS ################### #//
/**
* A basic unit test that builds a flow containing 1 broker, 1 mqtt-in, one mqtt-out and a helper.
* It performs the following steps: builds flow, loads flow, waits for connection, sends `sendMsg`,
* waits for msg then compares `sendMsg` to `expectMsg`, and finally calls `done`
* @param {object} brokerOptions anything that can be set in an MQTTBrokerNode (e.g. id, name, url, broker, server, port, protocolVersion, ...)
* @param {object} inNodeOptions anything that can be set in an MQTTInNode (e.g. id, name, broker, topic, rh, nl, rap, ... )
* @param {object} outNodeOptions anything that can be set in an MQTTOutNode (e.g. id, name, broker, ...)
* @param {object} options an object for passing in test properties like `sendMsg` and `expectMsg`
* @param {object} hooks an object containing hook functions...
* * [fn] `done()` - the tests done function. If excluded, an error will be thrown upon test error
* * [fn] `beforeLoad(flow)` - provides opportunity to adjust the flow JSON before loading into runtime
* * [fn] `afterLoad(helperNode, mqttBroker, mqttIn, mqttOut)` - called before connection attempt
* * [fn] `afterConnect(helperNode, mqttBroker, mqttIn, mqttOut)` - called before connection attempt
*/
function testSendRecv(brokerOptions, inNodeOptions, outNodeOptions, options, hooks) {
options = options || {};
brokerOptions = brokerOptions || {};
inNodeOptions = inNodeOptions || {};
outNodeOptions = outNodeOptions || {};
const sendMsg = options.sendMsg || {};
sendMsg.topic = sendMsg.topic || nextTopic();
const expectMsg = options.expectMsg || Object.assign({}, sendMsg);
expectMsg.payload = inNodeOptions.payload === undefined ? expectMsg.payload : inNodeOptions.payload;
if (inNodeOptions.topicType != "dynamic") {
inNodeOptions.topic = inNodeOptions.topic || sendMsg.topic;
}
const { flow, nodes } = buildBasicMQTTSendRecvFlow(brokerOptions, inNodeOptions, outNodeOptions);
if (hooks.beforeLoad) { hooks.beforeLoad(flow) }
helper.load(mqttNodes, flow, function () {
try {
const helperNode = helper.getNode("helper.node");
const mqttBroker = helper.getNode(brokerOptions.id);
const mqttIn = helper.getNode(nodes.mqtt_in.id);
const mqttOut = helper.getNode(nodes.mqtt_out.id);
let afterLoadHandled = false;
if (hooks.afterLoad) {
afterLoadHandled = hooks.afterLoad(helperNode, mqttBroker, mqttIn, mqttOut)
}
if (!afterLoadHandled) {
helperNode.on("input", function (msg) {
try {
compareMsgToExpected(msg, expectMsg);
if (hooks.done) { hooks.done(); }
} catch (err) {
if (hooks.done) { hooks.done(err); }
else { throw err; }
}
});
}
waitBrokerConnect(mqttBroker, function () {
//finally, connected!
if (hooks.afterConnect) {
let handled = hooks.afterConnect(helperNode, mqttBroker, mqttIn, mqttOut);
if (handled) { return }
}
if (mqttIn.isDynamic) {
mqttIn.receive({ "action": "subscribe", "topic": sendMsg.topic })
}
mqttOut.receive(sendMsg);
})
} catch (err) {
if (hooks.done) { hooks.done(err); }
else { throw err; }
}
});
}
/**
* Builds a flow containing 2 parts.
* * 1: MQTT Out node (with broker configured).
* * 2: MQTT In node (with broker configured) --> helper node `id:helper.node`
*/
function buildBasicMQTTSendRecvFlow(brokerOptions, inOptions, outOptions) {
brokerOptions = brokerOptions || {};
brokerOptions.broker = brokerOptions.broker || BROKER_HOST;
brokerOptions.port = brokerOptions.port || BROKER_PORT;
brokerOptions.autoConnect = String(brokerOptions.autoConnect) == "false" ? false : true;
const broker = buildMQTTBrokerNode(brokerOptions.id, brokerOptions.name, brokerOptions.broker, brokerOptions.port, brokerOptions);
const inNode = buildMQTTInNode(inOptions.id, inOptions.name, inOptions.broker || broker.id, inOptions.topic, inOptions, ["helper.node"]);
const outNode = buildMQTTOutNode(outOptions.id, outOptions.name, outOptions.broker || broker.id, outOptions.topic, outOptions);
const helper = buildNode("helper", "helper.node", "helper_node", {});
return {
nodes: {
[broker.name]: broker,
[inNode.name]: inNode,
[outNode.name]: outNode,
[helper.name]: helper,
},
flow: [broker, inNode, outNode, helper]
}
}
function buildMQTTBrokerNode(id, name, brokerHost, brokerPort, options) {
// url,broker,port,clientid,autoConnect,usetls,usews,verifyservercert,compatmode,protocolVersion,keepalive,
//cleansession,sessionExpiry,topicAliasMaximum,maximumPacketSize,receiveMaximum,userProperties,userPropertiesType,autoUnsubscribe
options = options || {};
const node = buildNode("mqtt-broker", id || "mqtt.broker", name || "mqtt_broker", options);
node.url = options.url;
node.broker = brokerHost || options.broker || BROKER_HOST;
node.port = brokerPort || options.port || BROKER_PORT;
node.clientid = options.clientid || "";
node.cleansession = String(options.cleansession) == "false" ? false : true;
node.autoUnsubscribe = String(options.autoUnsubscribe) == "false" ? false : true;
node.autoConnect = String(options.autoConnect) == "false" ? false : true;
if (options.birthTopic) {
node.birthTopic = options.birthTopic;
node.birthQos = options.birthQos || "0";
node.birthPayload = options.birthPayload || "";
}
if (options.closeTopic) {
node.closeTopic = options.closeTopic;
node.closeQos = options.closeQos || "0";
node.closePayload = options.closePayload || "";
}
if (options.willTopic) {
node.willTopic = options.willTopic;
node.willQos = options.willQos || "0";
node.willPayload = options.willPayload || "";
}
updateNodeOptions(options, node);
return node;
}
function buildMQTTInNode(id, name, brokerId, topic, options, wires) {
//{ "id": "mqtt.in", "type": "mqtt in", "name": "mqtt_in", "topic": "test/in", "qos": "2", "datatype": "auto", "broker": "mqtt.broker", "nl": false, "rap": true, "rh": 0, "inputs": 0, "wires": [["mqtt.out"]] }
options = options || {};
options.broker = options.broker || "mqtt.broker";
const node = buildNode("mqtt in", id || "mqtt.in", name || "mqtt_in", options);
node.topic = topic || "";
node.broker = brokerId;
node.topicType = options.topicType == "dynamic" ? "dynamic" : "static",
node.inputs = options.topicType == "dynamic" ? 1 : 0,
updateNodeOptions(node, options, wires);
return node;
}
function buildMQTTOutNode(id, name, brokerId, topic, options) {
//{ "id": "mqtt.out", "type": "mqtt out", "name": "mqtt_out", "topic": "test/out", "qos": "", "retain": "", "respTopic": "", "contentType": "", "userProps": "", "correl": "", "expiry": "", "broker": brokerId, "wires": [] },
options = options || {};
options.broker = options.broker || "mqtt.broker";
const node = buildNode("mqtt out", id || "mqtt.out", name || "mqtt_out", options);
node.topic = topic || "";
node.broker = brokerId;
updateNodeOptions(node, options, null);
return node;
}
function buildNode(type, id, name, options, wires) {
//{ "id": "mqtt.in", "type": "mqtt in", "name": "mqtt_in", "topic": "test/in", "qos": "2", "datatype": "auto", "broker": "mqtt.broker", "nl": false, "rap": true, "rh": 0, "inputs": 0, "wires": [["mqtt.out"]] }
options = options || {};
const node = {
"id": id || (type.replace(/[\W]/g, ".")),
"type": type,
"name": name || (type.replace(/[\W]/g, "_")),
"wires": []
}
if (node.id.indexOf(".") == -1) { node.is += ".node" }
updateNodeOptions(node, options, wires);
return node;
}
function updateNodeOptions(node, options, wires) {
let keys = Object.keys(options);
for (let index = 0; index < keys.length; index++) {
const key = keys[index];
const val = options[key];
if (node[key] === undefined) {
node[key] = val;
}
}
if (wires && Array.isArray(wires)) {
node.wires[0] = [...wires];
}
}
function compareMsgToExpected(msg, expectMsg) {
msg.should.have.property("topic", expectMsg.topic);
msg.should.have.property("payload", expectMsg.payload);
if (hasProperty(expectMsg, "retain")) { msg.retain.should.eql(expectMsg.retain); }
if (hasProperty(expectMsg, "qos")) {
msg.qos.should.eql(expectMsg.qos);
} else {
msg.qos.should.eql(0);
}
if (hasProperty(expectMsg, "userProperties")) { msg.should.have.property("userProperties", expectMsg.userProperties); }
if (hasProperty(expectMsg, "contentType")) { msg.should.have.property("contentType", expectMsg.contentType); }
if (hasProperty(expectMsg, "correlationData")) { msg.should.have.property("correlationData", expectMsg.correlationData); }
if (hasProperty(expectMsg, "responseTopic")) { msg.should.have.property("responseTopic", expectMsg.responseTopic); }
if (hasProperty(expectMsg, "payloadFormatIndicator")) { msg.should.have.property("payloadFormatIndicator", expectMsg.payloadFormatIndicator); }
if (hasProperty(expectMsg, "messageExpiryInterval")) { msg.should.have.property("messageExpiryInterval", expectMsg.messageExpiryInterval); }
}
function waitBrokerConnect(broker, callback, timeLimit) {
timeLimit = timeLimit || 2000;
const brokers = Array.isArray(broker) ? broker : [broker];
wait();
function wait() {
if (brokers.every(e => e.connected == true)) {
callback(); //yey - connected!
} else {
timeLimit = timeLimit - 15;
if (timeLimit <= 0) {
throw new Error("Timeout waiting broker connect")
}
setTimeout(wait, 15);
return;
}
}
}
function hasProperty(obj, propName) {
return Object.prototype.hasOwnProperty.call(obj, propName);
}
const base_topic = "nr" + Date.now().toString() + "/";
let topicNo = 0;
function nextTopic(topic) {
topicNo++;
if (!topic) { topic = "unittest" }
if (topic.startsWith("/")) { topic = topic.substring(1); }
if (topic.startsWith(base_topic)) { return topic + String(topicNo) }
return (base_topic + topic + String(topicNo));
}
//#endregion HELPERS