mirror of
https://github.com/node-red/node-red-nodes.git
synced 2023-10-10 13:36:58 +02:00
217 lines
8.6 KiB
JavaScript
217 lines
8.6 KiB
JavaScript
/**
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* Copyright 2015,2016 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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var should = require("should");
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var helper = require('../../../test/helper.js');
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var testNode = require('../../../function/smooth/17-smooth.js');
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describe('smooth node', function() {
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"use strict";
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beforeEach(function(done) {
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helper.startServer(done);
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});
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afterEach(function(done) {
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helper.unload().then(function() {
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helper.stopServer(done);
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});
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});
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it("should be loaded with correct defaults", function(done) {
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var flow = [{"id":"n1", "type":"smooth", "name":"smooth1", "wires":[[]]}];
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helper.load(testNode, flow, function() {
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var n1 = helper.getNode("n1");
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n1.should.have.property("name");
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n1.should.have.property("action");
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n1.should.have.property("count");
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done();
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});
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});
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it('should average over a number of inputs', function(done) {
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var flow = [{"id":"n1", "type":"smooth", action:"mean", count:"5", round:"true", wires:[["n2"]] },
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{id:"n2", type:"helper"} ];
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helper.load(testNode, flow, function() {
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var n1 = helper.getNode("n1");
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var n2 = helper.getNode("n2");
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var c = 0;
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n2.on("input", function(msg) {
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c += 1;
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if (c === 4) { msg.should.have.a.property("payload", 1.8); }
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if (c === 6) { msg.should.have.a.property("payload", 3); done(); }
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});
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n1.emit("input", {payload:1});
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n1.emit("input", {payload:1});
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n1.emit("input", {payload:2});
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n1.emit("input", {payload:3});
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n1.emit("input", {payload:4});
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n1.emit("input", {payload:4.786});
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});
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});
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it('should output max over a number of inputs', function(done) {
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var flow = [{"id":"n1", "type":"smooth", action:"max", count:"5", wires:[["n2"]] },
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{id:"n2", type:"helper"} ];
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helper.load(testNode, flow, function() {
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var n1 = helper.getNode("n1");
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var n2 = helper.getNode("n2");
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var c = 0;
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n2.on("input", function(msg) {
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c += 1;
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if (c === 2) { msg.should.have.a.property("payload", 5); }
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if (c === 3) { msg.should.have.a.property("payload", 5); }
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if (c === 5) { msg.should.have.a.property("payload", 7); done(); }
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});
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n1.emit("input", {payload:5});
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n1.emit("input", {payload:2});
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n1.emit("input", {payload:3});
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n1.emit("input", {payload:7});
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n1.emit("input", {payload:4});
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});
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});
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it('should output min over a number of inputs', function(done) {
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var flow = [{"id":"n1", "type":"smooth", action:"min", count:"5", wires:[["n2"]] },
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{id:"n2", type:"helper"} ];
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helper.load(testNode, flow, function() {
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var n1 = helper.getNode("n1");
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var n2 = helper.getNode("n2");
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var c = 0;
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n2.on("input", function(msg) {
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c += 1;
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if (c === 2) { msg.should.have.a.property("payload", 2); }
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if (c === 3) { msg.should.have.a.property("payload", 2); }
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if (c === 4) { msg.should.have.a.property("payload", 2); }
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if (c === 5) { msg.should.have.a.property("payload", 1); done(); }
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});
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n1.emit("input", {payload:5});
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n1.emit("input", {payload:2});
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n1.emit("input", {payload:3});
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n1.emit("input", {payload:7});
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n1.emit("input", {payload:1});
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});
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});
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it('should output standard deviation over a number of inputs', function(done) {
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var flow = [{"id":"n1", "type":"smooth", action:"sd", count:"5", round:"3", wires:[["n2"]] },
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{id:"n2", type:"helper"} ];
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helper.load(testNode, flow, function() {
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var n1 = helper.getNode("n1");
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var n2 = helper.getNode("n2");
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var c = 0;
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n2.on("input", function(msg) {
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c += 1;
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//console.log(c,msg);
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if (c === 2) { msg.should.have.a.property("payload", 0.707); }
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if (c === 3) { msg.should.have.a.property("payload", 1); }
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if (c === 4) { msg.should.have.a.property("payload", 1.291); }
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if (c === 5) { msg.should.have.a.property("payload", 1.581); done(); }
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});
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n1.emit("input", {payload:1});
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n1.emit("input", {payload:2});
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n1.emit("input", {payload:3});
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n1.emit("input", {payload:4});
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n1.emit("input", {payload:5});
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});
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});
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it('should do a low pass filter over a number of inputs', function(done) {
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var flow = [{"id":"n1", "type":"smooth", action:"low", count:"5", round:"3", wires:[["n2"]] },
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{id:"n2", type:"helper"} ];
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helper.load(testNode, flow, function() {
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var n1 = helper.getNode("n1");
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var n2 = helper.getNode("n2");
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var c = 0;
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n2.on("input", function(msg) {
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c += 1;
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if (c === 5) { msg.should.have.a.property("payload", 2.638); }
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if (c === 9) { msg.should.have.a.property("payload", 5.471); }
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if (c === 10) { msg.should.have.a.property("payload", 5.977); done(); }
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});
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n1.emit("input", {payload:1});
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n1.emit("input", {payload:2});
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n1.emit("input", {payload:3});
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n1.emit("input", {payload:4});
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n1.emit("input", {payload:5});
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n1.emit("input", {payload:6});
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n1.emit("input", {payload:7});
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n1.emit("input", {payload:8});
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n1.emit("input", {payload:8});
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n1.emit("input", {payload:8});
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});
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});
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it('should do a high pass filter over a number of inputs', function(done) {
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var flow = [{"id":"n1", "type":"smooth", action:"high", count:"5", round:"3", wires:[["n2"]] },
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{id:"n2", type:"helper"} ];
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helper.load(testNode, flow, function() {
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var n1 = helper.getNode("n1");
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var n2 = helper.getNode("n2");
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var c = 0;
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n2.on("input", function(msg) {
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c += 1;
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if (c === 5) { msg.should.have.a.property("payload", 2.362); }
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if (c === 9) { msg.should.have.a.property("payload", 2.529); }
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if (c === 10) { msg.should.have.a.property("payload", 2.023); done(); }
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});
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n1.emit("input", {payload:1});
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n1.emit("input", {payload:2});
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n1.emit("input", {payload:3});
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n1.emit("input", {payload:4});
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n1.emit("input", {payload:5});
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n1.emit("input", {payload:6});
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n1.emit("input", {payload:7});
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n1.emit("input", {payload:8});
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n1.emit("input", {payload:8});
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n1.emit("input", {payload:8});
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});
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});
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it('ignore msg with non numeric payload', function(done) {
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var flow = [{"id":"n1", "type":"smooth", action:"mean", count:"5", round:"3", wires:[["n2"]] },
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{id:"n2", type:"helper"} ];
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helper.load(testNode, flow, function() {
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var n1 = helper.getNode("n1");
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var n2 = helper.getNode("n2");
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n2.on("input", function(msg) {
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done("should not get here with no payload.");
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});
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setTimeout(function() {
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done();
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}, 50);
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n1.emit("input", {payload:"banana"});
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});
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});
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it('ignore msg with no payload', function(done) {
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var flow = [{"id":"n1", "type":"smooth", action:"mean", count:"5", round:"3", wires:[["n2"]] },
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{id:"n2", type:"helper"} ];
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helper.load(testNode, flow, function() {
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var n1 = helper.getNode("n1");
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var n2 = helper.getNode("n2");
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n2.on("input", function(msg) {
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done("should not get here with no payload.");
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});
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setTimeout(function() {
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done();
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}, 50);
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n1.emit("input", {topic:1});
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});
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});
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});
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