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Adding Change Node tests
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zobalogh
194
test/nodes/core/logic/15-change_spec.js
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194
test/nodes/core/logic/15-change_spec.js
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/**
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* Copyright 2014 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 changeNode = require("../../../../nodes/core/logic/15-change.js");
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var helper = require("../../helper.js");
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describe('ChangeNode', function() {
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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();
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helper.stopServer(done);
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});
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it('should be loaded', function(done) {
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var flow = [{"id":"changeNode1","type":"change","action":"replace","property":"payload","from":"","to":"","reg":false,"name":"changeNode","wires":[[]]}];
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helper.load(changeNode, flow, function() {
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var changeNode1 = helper.getNode("changeNode1");
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changeNode1.should.have.property('name', 'changeNode');
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done();
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});
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});
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it('sets the value of the message property', function(done) {
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var flow = [{"id":"changeNode1","type":"change","action":"replace","property":"payload","from":"","to":"changed","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
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{id:"helperNode1", type:"helper", wires:[]}];
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helper.load(changeNode, flow, function() {
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var changeNode1 = helper.getNode("changeNode1");
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var helperNode1 = helper.getNode("helperNode1");
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helperNode1.on("input", function(msg) {
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try {
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msg.payload.should.equal("changed");
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done();
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} catch(err) {
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done(err);
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}
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});
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changeNode1.receive({payload:"changeMe"});
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});
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});
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it('changes the value of the message property', function(done) {
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var flow = [{"id":"changeNode1","type":"change","action":"change","property":"payload","from":"Hello","to":"Goodbye","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
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{id:"helperNode1", type:"helper", wires:[]}];
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helper.load(changeNode, flow, function() {
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var changeNode1 = helper.getNode("changeNode1");
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var helperNode1 = helper.getNode("helperNode1");
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helperNode1.on("input", function(msg) {
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try {
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msg.payload.should.equal("Goodbye World!");
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done();
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} catch(err) {
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done(err);
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}
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});
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changeNode1.receive({payload:"Hello World!"});
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});
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});
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it('changes the value of the message property based on a regex', function(done) {
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var flow = [{"id":"changeNode1","type":"change","action":"change","property":"payload","from":"\\d+","to":"NUMBER","reg":true,"name":"changeNode","wires":[["helperNode1"]]},
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{id:"helperNode1", type:"helper", wires:[]}];
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helper.load(changeNode, flow, function() {
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var changeNode1 = helper.getNode("changeNode1");
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var helperNode1 = helper.getNode("helperNode1");
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helperNode1.on("input", function(msg) {
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try {
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msg.payload.should.equal("Replace all numbers NUMBER and NUMBER");
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done();
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} catch(err) {
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done(err);
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}
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});
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changeNode1.receive({payload:"Replace all numbers 12 and 14"});
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});
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});
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it('supports regex groups', function(done) {
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var flow = [{"id":"changeNode1","type":"change","action":"change","property":"payload","from":"(Hello)","to":"$1-$1-$1","reg":true,"name":"changeNode","wires":[["helperNode1"]]},
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{id:"helperNode1", type:"helper", wires:[]}];
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helper.load(changeNode, flow, function() {
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var changeNode1 = helper.getNode("changeNode1");
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var helperNode1 = helper.getNode("helperNode1");
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helperNode1.on("input", function(msg) {
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try {
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msg.payload.should.equal("Hello-Hello-Hello World");
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done();
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} catch(err) {
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done(err);
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}
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});
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changeNode1.receive({payload:"Hello World"});
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});
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});
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it('Reports invalid regex', function(done) {
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var sinon = require('sinon');
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var flow = [{"id":"changeNode1","type":"change","action":"change","property":"payload","from":"\\+**+","to":"NUMBER","reg":true,"name":"changeNode","wires":[["helperNode1"]]},
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{id:"helperNode1", type:"helper", wires:[]}];
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helper.load(changeNode, flow, function() {
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var changeNode1 = helper.getNode("changeNode1");
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var helperNode1 = helper.getNode("helperNode1");
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sinon.stub(changeNode1, 'error', function(error) {
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if(error.indexOf("regular expression" > -1)) {
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done();
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} else {
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try {
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should.fail(null, null, "An error should be reported for an invalid regex");
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} catch (err) {
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done(err);
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}
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}
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});
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changeNode1.receive({payload:"This is irrelevant"});
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});
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});
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it('deletes the value of the message property', function(done) {
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var flow = [{"id":"changeNode1","type":"change","action":"delete","property":"payload","from":"","to":"","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
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{id:"helperNode1", type:"helper", wires:[]}];
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helper.load(changeNode, flow, function() {
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var changeNode1 = helper.getNode("changeNode1");
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var helperNode1 = helper.getNode("helperNode1");
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helperNode1.on("input", function(msg) {
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try {
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msg.should.not.have.property('payload');
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done();
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} catch(err) {
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done(err);
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}
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});
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changeNode1.receive({payload:"This won't get through!"});
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});
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});
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// TODO confirm the behaviour of the change node later,apparently calling eval such that makeNew( msg, node.property.split("."), eval(node.to) ); is incorrect
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// it('changes the property name of the message object', function(done) {
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// var flow = [{"id":"changeNode1","type":"change","action":"replace","property":"payload","from":"","to":"msg.otherProp=10","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
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// {id:"helperNode1", type:"helper", wires:[]}];
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// helper.load(changeNode, flow, function() {
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// var changeNode1 = helper.getNode("changeNode1");
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// var helperNode1 = helper.getNode("helperNode1");
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// helperNode1.on("input", function(msg) {
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// try {
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// msg.otherProp.should.equal(10);
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// done();
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// } catch(err) {
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// done(err);
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// }
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// });
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// changeNode1.receive({payload:"changeMe"});
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// });
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// });
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it('splits dot delimited properties into objects', function(done) {
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var flow = [{"id":"changeNode1","type":"change","action":"replace","property":"pay.load","from":"","to":"10","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
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{id:"helperNode1", type:"helper", wires:[]}];
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helper.load(changeNode, flow, function() {
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var changeNode1 = helper.getNode("changeNode1");
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var helperNode1 = helper.getNode("helperNode1");
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helperNode1.on("input", function(msg) {
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try {
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msg.pay.load.should.equal("10");
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done();
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} catch(err) {
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done(err);
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}
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});
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changeNode1.receive({"pay.load":"changeMe"});
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});
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});
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});
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