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node-red-nodes/test/function/smooth/17-smooth_spec.js

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var should = require("should");
var helper = require("node-red-node-test-helper");
var testNode = require('../../../function/smooth/17-smooth.js');
describe('smooth node', function() {
"use strict";
beforeEach(function(done) {
helper.startServer(done);
});
afterEach(function(done) {
helper.unload().then(function() {
helper.stopServer(done);
});
});
it("should be loaded with correct defaults", function(done) {
var flow = [{"id":"n1", "type":"smooth", "name":"smooth1", "wires":[[]]}];
helper.load(testNode, flow, function() {
var n1 = helper.getNode("n1");
n1.should.have.property("name");
n1.should.have.property("action");
n1.should.have.property("count");
done();
});
});
it('should average over a number of inputs', function(done) {
var flow = [{"id":"n1", "type":"smooth", action:"mean", count:"5", round:"true", wires:[["n2"]] },
{id:"n2", type:"helper"} ];
helper.load(testNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
var c = 0;
n2.on("input", function(msg) {
c += 1;
if (c === 4) { msg.should.have.a.property("payload", 1.8); }
if (c === 6) { msg.should.have.a.property("payload", 3); done(); }
});
n1.emit("input", {payload:1});
n1.emit("input", {payload:1});
n1.emit("input", {payload:2});
n1.emit("input", {payload:3});
n1.emit("input", {payload:4});
n1.emit("input", {payload:4.786});
});
});
it('should average over a number of inputs - another property - foo', function(done) {
var flow = [{"id":"n1", "type":"smooth", action:"mean", count:"5", round:"true", property:"foo", wires:[["n2"]] },
{id:"n2", type:"helper"} ];
helper.load(testNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
var c = 0;
n2.on("input", function(msg) {
c += 1;
if (c === 4) { msg.should.have.a.property("foo", 1.8); }
if (c === 6) { msg.should.have.a.property("foo", 3); done(); }
});
n1.emit("input", {foo:1});
n1.emit("input", {foo:1});
n1.emit("input", {foo:2});
n1.emit("input", {payload:2});
n1.emit("input", {payload:2});
n1.emit("input", {foo:3});
n1.emit("input", {foo:4});
n1.emit("input", {foo:4.786});
});
});
it('should be able to be reset', function(done) {
var flow = [{"id":"n1", "type":"smooth", action:"mean", count:"5", round:"true", wires:[["n2"]] },
{id:"n2", type:"helper"} ];
helper.load(testNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
var c = 0;
n2.on("input", function(msg) {
c += 1;
if (c === 3) { msg.should.have.a.property("payload", 2); }
if (c === 6) { msg.should.have.a.property("payload", 5); done(); }
});
n1.emit("input", {payload:1});
n1.emit("input", {payload:2});
n1.emit("input", {payload:3});
n1.emit("input", {reset:true, payload:4});
n1.emit("input", {payload:5});
n1.emit("input", {payload:6});
});
});
it('should be able to be reset - while using another property - foo', function(done) {
var flow = [{"id":"n1", "type":"smooth", action:"mean", count:"5", round:"true", property:"foo", wires:[["n2"]] },
{id:"n2", type:"helper"} ];
helper.load(testNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
var c = 0;
n2.on("input", function(msg) {
c += 1;
if (c === 3) { msg.should.have.a.property("foo", 2); }
if (c === 6) { msg.should.have.a.property("foo", 5); done(); }
});
n1.emit("input", {foo:1});
n1.emit("input", {foo:2});
n1.emit("input", {payload:2});
n1.emit("input", {foo:3});
n1.emit("input", {reset:true, foo:4});
n1.emit("input", {foo:5});
n1.emit("input", {payload:2});
n1.emit("input", {foo:6});
});
});
it('should output max over a number of inputs', function(done) {
var flow = [{"id":"n1", "type":"smooth", action:"max", count:"5", wires:[["n2"]] },
{id:"n2", type:"helper"} ];
helper.load(testNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
var c = 0;
n2.on("input", function(msg) {
c += 1;
if (c === 2) { msg.should.have.a.property("payload", 5); }
if (c === 3) { msg.should.have.a.property("payload", 5); }
if (c === 5) { msg.should.have.a.property("payload", 7); done(); }
});
n1.emit("input", {payload:5});
n1.emit("input", {payload:2});
n1.emit("input", {payload:3});
n1.emit("input", {payload:7});
n1.emit("input", {payload:4});
});
});
it('should output min over a number of inputs', function(done) {
var flow = [{"id":"n1", "type":"smooth", action:"min", count:"5", wires:[["n2"]] },
{id:"n2", type:"helper"} ];
helper.load(testNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
var c = 0;
n2.on("input", function(msg) {
c += 1;
if (c === 2) { msg.should.have.a.property("payload", 2); }
if (c === 3) { msg.should.have.a.property("payload", 2); }
if (c === 4) { msg.should.have.a.property("payload", 2); }
if (c === 5) { msg.should.have.a.property("payload", 1); done(); }
});
n1.emit("input", {payload:5});
n1.emit("input", {payload:2});
n1.emit("input", {payload:3});
n1.emit("input", {payload:7});
n1.emit("input", {payload:1});
});
});
it('should output standard deviation over a number of inputs', function(done) {
var flow = [{"id":"n1", "type":"smooth", action:"sd", count:"5", round:"3", wires:[["n2"]] },
{id:"n2", type:"helper"} ];
helper.load(testNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
var c = 0;
n2.on("input", function(msg) {
c += 1;
//console.log(c,msg);
if (c === 2) { msg.should.have.a.property("payload", 0.707); }
if (c === 3) { msg.should.have.a.property("payload", 1); }
if (c === 4) { msg.should.have.a.property("payload", 1.291); }
if (c === 5) { msg.should.have.a.property("payload", 1.581); done(); }
});
n1.emit("input", {payload:1});
n1.emit("input", {payload:2});
n1.emit("input", {payload:3});
n1.emit("input", {payload:4});
n1.emit("input", {payload:5});
});
});
it('should do a low pass filter over a number of inputs', function(done) {
var flow = [{"id":"n1", "type":"smooth", action:"low", count:"5", round:"3", wires:[["n2"]] },
{id:"n2", type:"helper"} ];
helper.load(testNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
var c = 0;
n2.on("input", function(msg) {
c += 1;
if (c === 5) { msg.should.have.a.property("payload", 2.638); }
if (c === 9) { msg.should.have.a.property("payload", 5.471); }
if (c === 10) { msg.should.have.a.property("payload", 5.977); done(); }
});
n1.emit("input", {payload:1});
n1.emit("input", {payload:2});
n1.emit("input", {payload:3});
n1.emit("input", {payload:4});
n1.emit("input", {payload:5});
n1.emit("input", {payload:6});
n1.emit("input", {payload:7});
n1.emit("input", {payload:8});
n1.emit("input", {payload:8});
n1.emit("input", {payload:8});
});
});
it('should do a high pass filter over a number of inputs', function(done) {
var flow = [{"id":"n1", "type":"smooth", action:"high", count:"5", round:"3", wires:[["n2"]] },
{id:"n2", type:"helper"} ];
helper.load(testNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
var c = 0;
n2.on("input", function(msg) {
c += 1;
if (c === 5) { msg.should.have.a.property("payload", 2.362); }
if (c === 9) { msg.should.have.a.property("payload", 2.529); }
if (c === 10) { msg.should.have.a.property("payload", 2.023); done(); }
});
n1.emit("input", {payload:1});
n1.emit("input", {payload:2});
n1.emit("input", {payload:3});
n1.emit("input", {payload:4});
n1.emit("input", {payload:5});
n1.emit("input", {payload:6});
n1.emit("input", {payload:7});
n1.emit("input", {payload:8});
n1.emit("input", {payload:8});
n1.emit("input", {payload:8});
});
});
it('ignore msg with non numeric payload', function(done) {
var flow = [{"id":"n1", "type":"smooth", action:"mean", count:"5", round:"3", wires:[["n2"]] },
{id:"n2", type:"helper"} ];
helper.load(testNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
done("should not get here with no payload.");
});
setTimeout(function() {
done();
}, 50);
n1.emit("input", {payload:"banana"});
});
});
it('ignore msg with no payload', function(done) {
var flow = [{"id":"n1", "type":"smooth", action:"mean", count:"5", round:"3", wires:[["n2"]] },
{id:"n2", type:"helper"} ];
helper.load(testNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
done("should not get here with no payload.");
});
setTimeout(function() {
done();
}, 50);
n1.emit("input", {topic:1});
});
});
it('should average over a number of inputs on different topics', function(done) {
var flow = [{"id":"n1", "type":"smooth", action:"mean", count:"5", wires:[["n2"]] },
{id:"n2", type:"helper"} ];
helper.load(testNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
var c = 0;
n2.on("input", function(msg) {
c += 1;
if (c === 3) { msg.should.have.a.property("payload", 1); }
if (c === 5) { msg.should.have.a.property("payload", 2); }
if (c === 6) { msg.should.have.a.property("payload", 3); }
if (c === 7) { msg.should.have.a.property("payload", 3); done(); }
});
n1.emit("input", {payload:2, topic:"A"});
n1.emit("input", {payload:1, topic:"A"});
n1.emit("input", {payload:0, topic:"A"});
n1.emit("input", {payload:3, topic:"B"});
n1.emit("input", {payload:4, topic:"B"});
n1.emit("input", {payload:7, topic:"A"});
n1.emit("input", {payload:1, topic:"B"});
});
});
it('should average over different topics if asked', function(done) {
var flow = [{"id":"n1", "type":"smooth", action:"mean", count:"5", mult:"true", wires:[["n2"]] },
{id:"n2", type:"helper"} ];
helper.load(testNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
var c = 0;
n2.on("input", function(msg) {
c += 1;
if (c === 3) { msg.should.have.a.property("payload", 1); }
if (c === 5) { msg.should.have.a.property("payload", 4); }
if (c === 9) { msg.should.have.a.property("payload", 4); }
if (c === 11) { msg.should.have.a.property("payload", 5); done(); }
});
n1.emit("input", {payload:2, topic:"A"});
n1.emit("input", {payload:1, topic:"A"});
n1.emit("input", {payload:0, topic:"A"});
n1.emit("input", {payload:3, topic:"B"});
n1.emit("input", {payload:5, topic:"B"});
n1.emit("input", {payload:5, topic:"A"});
n1.emit("input", {payload:2, topic:"B"});
n1.emit("input", {payload:7, topic:"A"});
n1.emit("input", {payload:3, topic:"A"});
n1.emit("input", {payload:6, topic:"B"});
n1.emit("input", {payload:9, topic:"B"});
});
});
it("should reduce the number of messages by averaging if asked", function(done) {
var flow = [{"id":"n1", "type":"smooth", action:"mean", count:"5", reduce:"true", wires:[["n2"]] },
{id:"n2", type:"helper"} ];
helper.load(testNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
var c = 0;
n2.on("input", function(msg) {
c += 1;
if (c === 1) { msg.should.have.a.property("payload", 3); }
else if (c === 2) { msg.should.have.a.property("payload", 6); done(); }
else if (c > 2) { done(new Error("should not emit more than two messages.")); }
});
n1.emit("input", {payload:1});
n1.emit("input", {payload:2});
n1.emit("input", {payload:3});
n1.emit("input", {payload:4});
n1.emit("input", {payload:5});
n1.emit("input", {payload:6});
n1.emit("input", {payload:7});
n1.emit("input", {payload:8});
n1.emit("input", {payload:9})
; n1.emit("input", {payload:0});
});
});
it("should reduce the number of messages by max value, if asked", function(done) {
var flow = [{"id":"n1", "type":"smooth", action:"max", count:"5", reduce:"true", wires:[["n2"]] },
{id:"n2", type:"helper"} ];
helper.load(testNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
var c = 0;
n2.on("input", function(msg) {
c += 1;
if (c === 1) { msg.should.have.a.property("payload", 5); }
else if (c === 2) { msg.should.have.a.property("payload", 9); done(); }
else if (c > 2) { done(new Error("should not emit more than two messages.")); }
});
n1.emit("input", {payload:1});
n1.emit("input", {payload:2});
n1.emit("input", {payload:3});
n1.emit("input", {payload:4});
n1.emit("input", {payload:5});
n1.emit("input", {payload:6});
n1.emit("input", {payload:7});
n1.emit("input", {payload:8});
n1.emit("input", {payload:9});
n1.emit("input", {payload:0});
});
});
it("should reduce the number of messages by min value, if asked", function(done) {
var flow = [{"id":"n1", "type":"smooth", action:"min", count:"5", reduce:"true", wires:[["n2"]] },
{id:"n2", type:"helper"} ];
helper.load(testNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
var c = 0;
n2.on("input", function(msg) {
c += 1;
if (c === 1) { msg.should.have.a.property("payload", 1); }
else if (c === 2) { msg.should.have.a.property("payload", 0); done(); }
else if (c > 2) { done(new Error("should not emit more than two messages.")); }
});
n1.emit("input", {payload:1});
n1.emit("input", {payload:2});
n1.emit("input", {payload:3});
n1.emit("input", {payload:4});
n1.emit("input", {payload:5});
n1.emit("input", {payload:6});
n1.emit("input", {payload:7});
n1.emit("input", {payload:8});
n1.emit("input", {payload:9});
n1.emit("input", {payload:0});
});
});
});
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