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node-red/test/nodes/core/function/15-change_spec.js

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/**
* Copyright JS Foundation and other contributors, http://js.foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
var should = require("should");
var sinon = require("sinon");
var changeNode = require("nr-test-utils").require("@node-red/nodes/core/function/15-change.js");
var Context = require("nr-test-utils").require("@node-red/runtime/lib/nodes/context");
var helper = require("node-red-node-test-helper");
describe('change Node', function() {
beforeEach(function(done) {
helper.startServer(done);
});
function initContext(done) {
Context.init({
contextStorage: {
memory0: {
module: "memory"
},
memory1: {
module: "memory"
}
}
});
Context.load().then(function () {
done();
});
}
afterEach(function(done) {
helper.unload().then(function () {
return Context.clean({allNodes: {}});
}).then(function () {
return Context.close();
}).then(function () {
helper.stopServer(done);
});
});
it('should load node with defaults', function(done) {
var flow = [{ id: "c1", type: "change", name:"change1" }];
helper.load(changeNode, flow, function() {
helper.getNode("c1").should.have.property("name", "change1");
helper.getNode("c1").should.have.property("rules", [{fromt:'str',pt:'msg',tot:'str',t:undefined,p:''}]);
done();
});
});
it('should load defaults if set to replace', function(done) {
var flow = [{ id: "c1", type: "change", name:"change1", action:"replace" }];
helper.load(changeNode, flow, function() {
helper.getNode("c1").should.have.property("name", "change1");
helper.getNode("c1").should.have.property("rules", [ {fromt: 'str', p: '', pt: 'msg', t: 'set', to: '', tot: 'str'} ]);
done();
});
});
it('should load defaults if set to change', function(done) {
var flow = [{ id: "c1", type: "change", name:"change1", action:"change" }];
helper.load(changeNode, flow, function() {
//console.log(helper.getNode("c1"));
helper.getNode("c1").should.have.property("name", "change1");
helper.getNode("c1").should.have.property("rules", [ { from: '', fromRE:/(?:)/g,fromt: 'str', p: '',pt: 'msg', re: undefined, t: 'change', to: '',tot: 'str' } ]);
done();
});
});
it('should no-op if there are no rules', function(done) {
var flow = [{"id":"changeNode1","type":"change","rules":[],"action":"","property":"","from":"","to":"","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.should.eql(sentMsg);
done();
} catch(err) {
done(err);
}
});
var sentMsg = {payload:"leaveMeAlong"};
changeNode1.receive(sentMsg);
});
});
describe('#set' , function() {
it('sets the value of the message property', function(done) {
var flow = [{"id":"changeNode1","type":"change","action":"replace","property":"payload","from":"","to":"changed","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("changed");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"changeMe"});
});
});
it('sets the value of global context property', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{ "t":"set","p":"globalValue","pt":"global","to":"changed","tot":"str"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
changeNode1.context().global.get("globalValue").should.equal("changed");
done();
} catch(err) {
done(err);
}
});
changeNode1.context().global.set("globalValue","changeMe");
changeNode1.receive({payload:""});
});
});
it('sets the value of persistable global context property', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{ "t":"set","p":"#:(memory1)::globalValue","pt":"global","to":"changed","tot":"str"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
initContext(function () {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
changeNode1.context().global.get("globalValue", "memory1", function (err, val) {
val.should.equal("changed");
done();
});
} catch(err) {
done(err);
}
});
changeNode1.context().global.set("globalValue","changeMe","memory1", function (err) {
changeNode1.receive({payload:""});
});
});
});
});
it('sets the value and type of the message property', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{ "t": "set", "p": "payload", "pt": "msg", "to": "12345", "tot": "num" }],"reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal(12345);
var t = typeof(msg.payload);
t.should.equal("number");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"changeMe"});
});
});
it('sets the value of an already set multi-level message property', function(done) {
var flow = [{"id":"changeNode1","type":"change","action":"replace","property":"foo.bar","from":"","to":"bar","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.foo.bar.should.equal("bar");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({foo:{bar:"foo"}});
});
});
it('sets the value of an empty multi-level message property', function(done) {
var flow = [{"id":"changeNode1","type":"change","action":"replace","property":"foo.bar","from":"","to":"bar","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.foo.bar.should.equal("bar");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({});
});
});
it('sets the value of a message property to another message property', function(done) {
var flow = [{"id":"changeNode1","type":"change","action":"replace","property":"foo","from":"","to":"msg.fred","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
var rule = helper.getNode("changeNode1").rules[0];
rule.t.should.eql('set');
rule.tot.should.eql('msg');
helperNode1.on("input", function(msg) {
try {
msg.foo.should.equal("bar");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({fred:"bar"});
});
});
it('sets the value of a multi-level message property to another multi-level message property', function(done) {
var flow = [{"id":"changeNode1","type":"change","action":"replace","property":"foo.bar","from":"","to":"msg.fred.red","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.foo.bar.should.equal("bar");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({fred:{red:"bar"}});
});
});
it('doesn\'t set the value of a message property when the \'to\' message property does not exist', function(done) {
var flow = [{"id":"changeNode1","type":"change","action":"replace","property":"foo.bar","from":"","to":"msg.fred.red","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
should.not.exist(msg.foo);
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({});
});
});
it('overrides the value of a message property when the \'to\' message property does not exist', function(done) {
var flow = [{"id":"changeNode1","type":"change","action":"replace","property":"payload","from":"","to":"msg.foo","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
should.not.exist(msg.payload);
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"Hello"});
});
});
it('sets the message property to null when the \'to\' message property equals null', function(done) {
var flow = [{"id":"changeNode1","type":"change","action":"replace","property":"payload","from":"","to":"msg.foo","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
(msg.payload === null).should.be.true();
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"Hello", foo:null});
});
});
it('does not set other properties using = inside to property', function(done) {
var flow = [{"id":"changeNode1","type":"change","action":"replace","property":"payload","from":"","to":"msg.otherProp=10","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
should.not.exist(msg.payload);
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"changeMe"});
});
});
it('splits dot delimited properties into objects', function(done) {
var flow = [{"id":"changeNode1","type":"change","action":"replace","property":"pay.load","from":"","to":"10","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.pay.load.should.equal("10");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({pay:{load:"changeMe"}});
});
});
it('changes the value to flow context property', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"set","p":"payload","to":"flowValue","tot":"flow"}],"name":"changeNode","wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.eql("Hello World!");
done();
} catch(err) {
done(err);
}
});
changeNode1.context().flow.set("flowValue","Hello World!");
changeNode1.receive({payload:""});
});
});
it('changes the value to persistable flow context property', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"set","p":"payload","to":"#:(memory1)::flowValue","tot":"flow"}],"name":"changeNode","wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
initContext(function () {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.eql("Hello World!");
done();
} catch(err) {
done(err);
}
});
changeNode1.context().flow.set("flowValue","Hello World!","memory1",function(err) {
changeNode1.receive({payload:""});
});
});
});
});
it('changes the value to global context property', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"set","p":"payload","to":"globalValue","tot":"global"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.eql("Hello World!");
done();
} catch(err) {
done(err);
}
});
changeNode1.context().global.set("globalValue","Hello World!");
changeNode1.receive({payload:""});
});
});
it('changes the value to persistable global context property', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"set","p":"payload","to":"#:(memory1)::globalValue","tot":"global"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
initContext(function () {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.eql("Hello World!");
done();
} catch(err) {
done(err);
}
});
changeNode1.context().global.set("globalValue","Hello World!","memory1", function (err) {
changeNode1.receive({payload:""});
});
});
});
});
it('changes the value to a number', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"set","p":"payload","to":"123","tot":"num"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.eql(123);
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:""});
});
});
it('changes the value to a boolean value', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"set","p":"payload","to":"true","tot":"bool"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.eql(true);
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:""});
});
});
it('changes the value to a js object', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"set","p":"payload","to":'{"a":123}',"tot":"json"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.eql({a:123});
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:""});
});
});
it('changes the value to a buffer object', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"set","p":"payload","to":"[72,101,108,108,111,32,87,111,114,108,100]","tot":"bin"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
var buff = Buffer.from("Hello World");
msg.payload.should.eql(buff);
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:""});
});
});
it('sets the value of the message property to the current timestamp', function(done) {
var flow = [{"id":"changeNode1","type":"change","rules":[{"t":"set","p":"ts","pt":"msg","to":"","tot":"date"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
(Date.now() - msg.ts).should.be.approximately(0,50);
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:Date.now()});
});
});
describe('env var', function() {
before(function() {
process.env.NR_TEST_A = 'foo';
})
after(function() {
delete process.env.NR_TEST_A;
})
it('sets the value using env property', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"set","p":"payload","pt":"msg","to":"NR_TEST_A","tot":"env"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("foo");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"123",topic:"ABC"});
});
});
it('sets the value using env property from tab', function(done) {
var flow = [
{"id":"tab1","type":"tab","env":[
{"name":"NR_TEST_A", "value":"bar", "type": "str"}
]},
{"id":"changeNode1","type":"change","z":"tab1",rules:[{"t":"set","p":"payload","pt":"msg","to":"NR_TEST_A","tot":"env"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}
];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("bar");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"123",topic:"ABC"});
});
});
it('sets the value using env property from group', function(done) {
var flow = [
{"id": "flow", type:"tab"},
{"id":"group1","type":"group","env":[
{"name":"NR_TEST_A", "value":"bar", "type": "str"}
], z: "flow"},
{"id":"changeNode1","type":"change","g":"group1",rules:[{"t":"set","p":"payload","pt":"msg","to":"NR_TEST_A","tot":"env"}],"name":"changeNode","wires":[["helperNode1"]], z: "flow"},
{id:"helperNode1", type:"helper", wires:[], z: "flow"}
];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("bar");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"123",topic:"ABC"});
});
});
it('sets the value using env property from nested group', function(done) {
var flow = [
{"id": "flow", type:"tab"},
{"id":"group1","type":"group","env":[
{"name":"NR_TEST_A", "value":"bar", "type": "str"}
], z: "flow"},
{"id":"group2","type":"group","g":"group1","env":[], z: "flow"},
{"id":"changeNode1","type":"change","g":"group2",rules:[{"t":"set","p":"payload","pt":"msg","to":"NR_TEST_A","tot":"env"}],"name":"changeNode","wires":[["helperNode1"]], z: "flow"},
{id:"helperNode1", type:"helper", wires:[], z: "flow"}
];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("bar");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"123",topic:"ABC"});
});
});
});
it('changes the value using jsonata', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"set","p":"payload","to":"$length(payload)","tot":"jsonata"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.eql(12);
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"Hello World!"});
});
});
it('reports invalid jsonata expression', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"set","p":"payload","to":"$invalid(payload)","tot":"jsonata"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
done("Invalid jsonata expression passed message through");
});
changeNode1.on("call:error", function(err) {
// Expect error to be called
done();
});
changeNode1.receive({payload:"Hello World!"});
});
});
it('changes the value using flow context with jsonata', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"set","p":"payload","to":"$flowContext(\"foo\")","tot":"jsonata"}],"name":"changeNode","wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[],"z":"flow"},{"id":"flow","type":"tab"}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
changeNode1.context().flow.set("foo","bar");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.eql("bar");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"Hello World!"});
});
});
it('changes the value using global context with jsonata', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"set","p":"payload","to":"$globalContext(\"foo\")","tot":"jsonata"}],"name":"changeNode","wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[],"z":"flow"},{"id":"flow","type":"tab"}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
changeNode1.context().global.set("foo","bar");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.eql("bar");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"Hello World!"});
});
});
it('changes the value using persistable flow context with jsonata', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"set","p":"payload","to":"$flowContext(\"foo\",\"memory1\")","tot":"jsonata"}],"name":"changeNode","wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[],"z":"flow"},{"id":"flow","type":"tab"}];
helper.load(changeNode, flow, function() {
initContext(function () {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.eql("bar");
done();
} catch(err) {
done(err);
}
});
changeNode1.context().flow.set("foo","bar","memory1",function(err){
if(err){
done(err);
}else{
changeNode1.context().flow.set("foo","error!");
changeNode1.receive({payload:"Hello World!"});
}
});
});
});
});
it('changes the value using persistable global context with jsonata', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"set","p":"payload","to":"$globalContext(\"foo\",\"memory1\")","tot":"jsonata"}],"name":"changeNode","wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[],"z":"flow"},{"id":"flow","type":"tab"}];
helper.load(changeNode, flow, function() {
initContext(function () {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.eql("bar");
done();
} catch(err) {
done(err);
}
});
changeNode1.context().global.set("foo","bar","memory1",function(err){
if(err){
done(err);
}else{
changeNode1.context().global.set("foo","error!");
changeNode1.receive({payload:"Hello World!"});
}
});
});
});
});
it('sets the value of a message property using a nested property', function(done) {
var flow = [{"id":"changeNode1","type":"change","name":"","rules":[{"t":"set","p":"payload","pt":"msg","to":"lookup[msg.topic]","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal(2);
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"",lookup:{a:1,b:2},topic:"b"});
});
});
it('sets the value of a nested message property using a message property', function(done) {
var flow = [{"id":"changeNode1","type":"change","name":"","rules":[{"t":"set","p":"lookup[msg.topic]","pt":"msg","to":"payload","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.lookup.b.should.equal("newValue");
done();
} catch(err) {
done(err);
}
});
var msg = {
payload: "newValue",
lookup:{a:1,b:2},
topic:"b"
}
changeNode1.receive(msg);
});
});
it('sets the value of a message property using a nested property in flow context', function(done) {
var flow = [{"id":"changeNode1","type":"change","name":"","rules":[{"t":"set","p":"payload","pt":"msg","to":"lookup[msg.topic]","tot":"flow"}],"action":"","property":"","from":"","to":"","reg":false,"wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.eql(2);
done();
} catch(err) {
done(err);
}
});
changeNode1.context().flow.set("lookup",{a:1, b:2});
changeNode1.receive({payload: "", topic: "b"});
});
})
it('sets the value of a message property using a nested property in flow context', function(done) {
var flow = [{"id":"changeNode1","type":"change","name":"","rules":[{"t":"set","p":"payload","pt":"msg","to":"lookup[msg.topic]","tot":"flow"}],"action":"","property":"","from":"","to":"","reg":false,"wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.eql(2);
done();
} catch(err) {
done(err);
}
});
changeNode1.context().flow.set("lookup",{a:1, b:2});
changeNode1.receive({payload: "", topic: "b"});
});
})
it('sets the value of a nested flow context property using a message property', function(done) {
var flow = [{"id":"changeNode1","type":"change","name":"","rules":[{"t":"set","p":"lookup[msg.topic]","pt":"flow","to":"payload","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.eql("newValue");
changeNode1.context().flow.get("lookup.b").should.eql("newValue");
done();
} catch(err) {
done(err);
}
});
changeNode1.context().flow.set("lookup",{a:1, b:2});
changeNode1.receive({payload: "newValue", topic: "b"});
});
})
it('deep copies the property if selected', function(done) {
var flow = [{"id":"changeNode1","type":"change","rules":[{"t":"set","p":"payload","pt":"msg","to":"source","tot":"msg","dc":true}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
// Check payload has been set to a clone of original object
// - the JSON should match
JSON.stringify(msg.payload).should.equal(JSON.stringify(originalObject))
// - but they must be different objects
msg.payload.should.not.equal(originalObject);
// Modify nested property of original object
originalObject.a.c = 3;
// Check that modification hasn't happened on cloned prop
msg.payload.a.should.not.have.property('c');
done();
} catch(err) {
done(err);
}
});
var originalObject = { a: { b: 2 } }
changeNode1.receive({source:originalObject});
});
})
});
describe('#change', function() {
it('changes the value of the message property', function(done) {
var flow = [{"id":"changeNode1","type":"change","action":"change","property":"payload","from":"Hello","to":"Goodbye","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("Goodbye World!");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"Hello World!"});
});
});
it('changes the value and doesnt change type of the message property for partial match', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{ "t": "change", "p": "payload", "pt": "msg", "from": "123", "fromt": "str", "to": "456", "tot": "num" }],"reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("Change456Me");
var t = typeof(msg.payload);
t.should.equal("string");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"Change123Me"});
});
});
it('changes the value and type of the message property if a complete match', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{ "t": "change", "p": "payload", "pt": "msg", "from": "123", "fromt": "str", "to": "456", "tot": "num" }],"reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal(456);
var t = typeof(msg.payload);
t.should.equal("number");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"123"});
});
});
it('changes the value of a multi-level message property', function(done) {
var flow = [{"id":"changeNode1","type":"change","action":"change","property":"foo.bar","from":"Hello","to":"Goodbye","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.foo.bar.should.equal("Goodbye World!");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({foo:{bar:"Hello World!"}});
});
});
it('sends unaltered message if the changed message property does not exist', function(done) {
var flow = [{"id":"changeNode1","type":"change","action":"change","property":"foo","from":"Hello","to":"Goodbye","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("Hello World!");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"Hello World!"});
});
});
it('sends unaltered message if a changed multi-level message property does not exist', function(done) {
var flow = [{"id":"changeNode1","type":"change","action":"change","property":"foo.bar","from":"Hello","to":"Goodbye","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("Hello World!");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"Hello World!"});
});
});
it('changes the value of the message property based on a regex', function(done) {
var flow = [{"id":"changeNode1","type":"change","action":"change","property":"payload","from":"\\d+","to":"NUMBER","reg":true,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("Replace all numbers NUMBER and NUMBER");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"Replace all numbers 12 and 14"});
});
});
it('supports regex groups', function(done) {
var flow = [{"id":"changeNode1","type":"change","action":"change","property":"payload","from":"(Hello)","to":"$1-$1-$1","reg":true,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("Hello-Hello-Hello World");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"Hello World"});
});
});
it('reports invalid regex', function(done) {
var flow = [{"id":"changeNode1","type":"change","action":"change","property":"payload","from":"\\+**+","to":"NUMBER","reg":true,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var logEvents = helper.log().args.filter(function (evt) {
return evt[0].type == "change";
});
logEvents.should.have.length(1);
var msg = logEvents[0][0];
msg.should.have.property('level', helper.log().ERROR);
msg.should.have.property('id', 'changeNode1');
done();
});
});
it('supports regex groups - new rule format', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"change","p":"payload","from":"(Hello)","to":"$1-$1-$1","fromt":"re","tot":"str"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("Hello-Hello-Hello World");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"Hello World"});
});
});
it('changes the value - new rule format', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"change","p":"payload","from":"ABC","to":"123","fromt":"str","tot":"str"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("abc123abc");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"abcABCabc"});
});
});
it('changes the value using msg property', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"change","p":"payload","from":"topic","to":"123","fromt":"msg","tot":"str"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("abc123abc");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"abcABCabc",topic:"ABC"});
});
});
it('changes the value using flow context property', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"change","p":"payload","from":"topic","to":"123","fromt":"flow","tot":"str"}],"name":"changeNode","wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("abc123abc");
done();
} catch(err) {
done(err);
}
});
changeNode1.context().flow.set("topic","ABC");
changeNode1.receive({payload:"abcABCabc"});
});
});
it('changes the value using persistable flow context property', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"change","p":"payload","from":"#:(memory1)::topic","to":"123","fromt":"flow","tot":"str"}],"name":"changeNode","wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
initContext(function () {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("abc123abc");
done();
} catch(err) {
done(err);
}
});
changeNode1.context().flow.set("topic","ABC","memory1", function (err) {
changeNode1.receive({payload:"abcABCabc"});
});
});
});
});
it('changes the value using global context property', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"change","p":"payload","from":"topic","to":"123","fromt":"global","tot":"str"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("abc123abc");
done();
} catch(err) {
done(err);
}
});
changeNode1.context().global.set("topic","ABC");
changeNode1.receive({payload:"abcABCabc"});
});
});
it('changes the value using persistable global context property', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"change","p":"payload","from":"#:(memory1)::topic","to":"123","fromt":"global","tot":"str"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
initContext(function () {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("abc123abc");
done();
} catch(err) {
done(err);
}
});
changeNode1.context().global.set("topic","ABC","memory1",function (err) {
changeNode1.receive({payload:"abcABCabc"});
});
});
});
});
it('changes the number using global context property', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"change","p":"payload","from":"topic","to":"ABC","fromt":"global","tot":"str"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("ABC");
done();
} catch(err) {
done(err);
}
});
changeNode1.context().global.set("topic",123);
changeNode1.receive({payload:123});
});
});
it('changes the number using persistable global context property', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"change","p":"payload","from":"#:(memory1)::topic","to":"ABC","fromt":"global","tot":"str"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
initContext(function () {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("ABC");
done();
} catch(err) {
done(err);
}
});
changeNode1.context().global.set("topic",123,"memory1",function (err) {
changeNode1.receive({payload:123});
});
});
});
});
it('changes the value using number - string payload', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"change","p":"payload","from":"123","to":"456","fromt":"num","tot":"str"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("456");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"123"});
});
});
it('changes the value using number - number payload', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"change","p":"payload","from":"123","to":"abc","fromt":"num","tot":"str"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("abc");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:123});
});
});
it('changes the value using boolean - string payload', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"change","p":"payload","from":"true","to":"xxx","fromt":"bool","tot":"str"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("xxx");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"true"});
});
});
it('changes the value using boolean - boolean payload', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"change","p":"payload","from":"true","to":"xxx","fromt":"bool","tot":"str"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("xxx");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:true});
});
});
it('changes the value of the global context', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{ "t": "change", "p": "payload", "pt": "global", "from": "Hello", "fromt": "str", "to": "Goodbye", "tot": "str" }],"reg":false,"name":"changeNode","wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[],"z":"flow"}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
helperNode1.context().global.get("payload").should.equal("Goodbye World!");
done();
} catch(err) {
done(err);
}
});
changeNode1.context().global.set("payload","Hello World!");
changeNode1.receive({payload:""});
});
});
it('changes the value of the persistable global context', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{ "t": "change", "p": "#:(memory1)::payload", "pt": "global", "from": "Hello", "fromt": "str", "to": "Goodbye", "tot": "str" }],"reg":false,"name":"changeNode","wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[],"z":"flow"}];
helper.load(changeNode, flow, function() {
initContext(function () {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
helperNode1.context().global.get("payload","memory1", function (err, val) {
val.should.equal("Goodbye World!");
done();
});
} catch(err) {
done(err);
}
});
changeNode1.context().global.set("payload","Hello World!","memory1",function (err) {
changeNode1.receive({payload:""});
});
});
});
});
it('changes the value and doesnt change type of the flow context for partial match', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{ "t": "change", "p": "payload", "pt": "flow", "from": "123", "fromt": "str", "to": "456", "tot": "num" }],"reg":false,"name":"changeNode","wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[],"z":"flow"}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
helperNode1.context().flow.get("payload").should.equal("Change456Me");
helperNode1.context().flow.get("payload").should.be.a.String();
done();
} catch(err) {
done(err);
}
});
changeNode1.context().flow.set("payload","Change123Me");
changeNode1.receive({payload:""});
});
});
it('changes the value and doesnt change type of the persistable flow context for partial match', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{ "t": "change", "p": "#:(memory1)::payload", "pt": "flow", "from": "123", "fromt": "str", "to": "456", "tot": "num" }],"reg":false,"name":"changeNode","wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[],"z":"flow"}];
helper.load(changeNode, flow, function() {
initContext(function () {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
helperNode1.context().flow.get("payload","memory1",function (err, val) {
val.should.equal("Change456Me");
val.should.be.a.String();
done();
});
} catch(err) {
done(err);
}
});
changeNode1.context().flow.set("payload","Change123Me","memory1",function (err) {
changeNode1.receive({payload:""});
});
});
});
});
it('changes the value and type of the flow context if a complete match', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{ "t": "change", "p": "payload", "pt": "flow", "from": "123", "fromt": "str", "to": "456", "tot": "num" }],"reg":false,"name":"changeNode","wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[],"z":"flow"}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
helperNode1.context().flow.get("payload").should.equal(456);
helperNode1.context().flow.get("payload").should.be.a.Number();
done();
} catch(err) {
done(err);
}
});
changeNode1.context().flow.set("payload","123");
changeNode1.receive({payload:""});
});
});
it('changes the value and type of the persistable flow context if a complete match', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{ "t": "change", "p": "#:(memory1)::payload", "pt": "flow", "from": "123", "fromt": "str", "to": "456", "tot": "num" }],"reg":false,"name":"changeNode","wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[],"z":"flow"}];
helper.load(changeNode, flow, function() {
initContext(function () {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
helperNode1.context().flow.get("payload","memory1",function (err, val) {
val.should.be.a.Number();
val.should.equal(456);
done();
});
} catch(err) {
done(err);
}
});
changeNode1.context().flow.set("payload","123","memory1",function (err) {
changeNode1.receive({payload:""});
});
});
});
});
it('changes the value using number - number flow context', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{ "t": "change", "p": "payload", "pt": "flow", "from": "123", "fromt": "num", "to": "abc", "tot": "str" }],"reg":false,"name":"changeNode","wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[],"z":"flow"}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
helperNode1.context().flow.get("payload").should.equal("abc");
done();
} catch(err) {
done(err);
}
});
changeNode1.context().flow.set("payload",123);
changeNode1.receive({payload:""});
});
});
it('changes the value using number - number persistable flow context', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{ "t": "change", "p": "#:(memory1)::payload", "pt": "flow", "from": "123", "fromt": "num", "to": "abc", "tot": "str" }],"reg":false,"name":"changeNode","wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[],"z":"flow"}];
helper.load(changeNode, flow, function() {
initContext(function () {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
helperNode1.context().flow.get("payload","memory1",function (err, val) {
val.should.equal("abc");
done();
});
} catch(err) {
done(err);
}
});
changeNode1.context().flow.set("payload",123,"memory1",function (err) {
changeNode1.receive({payload:""});
});
});
});
});
it('changes the value using boolean - boolean flow context', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{ "t": "change", "p": "payload", "pt": "flow", "from": "true", "fromt": "bool", "to": "abc", "tot": "str" }],"reg":false,"name":"changeNode","wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[],"z":"flow"}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
helperNode1.context().flow.get("payload").should.equal("abc");
done();
} catch(err) {
done(err);
}
});
changeNode1.context().flow.set("payload",true);
changeNode1.receive({payload:""});
});
});
it('changes the value using boolean - boolean persistable flow context', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{ "t": "change", "p": "#:(memory1)::payload", "pt": "flow", "from": "true", "fromt": "bool", "to": "abc", "tot": "str" }],"reg":false,"name":"changeNode","wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[],"z":"flow"}];
helper.load(changeNode, flow, function() {
initContext(function () {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
helperNode1.context().flow.get("payload","memory1",function (err, val) {
val.should.equal("abc");
done();
});
} catch(err) {
done(err);
}
});
changeNode1.context().flow.set("payload",true,"memory1",function (err) {
changeNode1.receive({payload:""});
});
});
});
});
it('reports invalid fromValue', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"change","p":"payload","from":"null","fromt":"msg","to":"abc","tot":"str"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
setTimeout(function() {
var logEvents = helper.log().args.filter(function (evt) {
return evt[0].type == "change";
});
logEvents.should.have.length(1);
var msg = logEvents[0][0];
msg.should.have.property('level', helper.log().ERROR);
msg.should.have.property('id', 'changeNode1');
done();
},25);
changeNode1.receive({payload:"",null:null});
});
});
describe('env var', function() {
before(function() {
process.env.NR_TEST_A = 'foo';
})
after(function() {
delete process.env.NR_TEST_A;
})
it('changes the value using env property', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{"t":"change","p":"payload","from":"topic","to":"NR_TEST_A","fromt":"msg","tot":"env"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("abcfooabc");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"abcABCabc",topic:"ABC"});
});
});
});
});
describe("#delete", function() {
it('deletes the value of the message property', function(done) {
var flow = [{"id":"changeNode1","type":"change","action":"delete","property":"payload","from":"","to":"","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.should.not.have.property('payload');
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"This won't get through!"});
});
});
it('deletes the value of global context property', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{ "t": "delete", "p": "globalValue", "pt": "global"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
changeNode1.context().global.should.not.have.property("globalValue");
done();
} catch(err) {
done(err);
}
});
changeNode1.context().global.set("globalValue","Hello World!");
changeNode1.receive({payload:""});
});
});
it('deletes the value of persistable global context property', function(done) {
var flow = [{"id":"changeNode1","type":"change",rules:[{ "t": "delete", "p": "#:(memory1)::globalValue", "pt": "global"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
initContext(function () {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
changeNode1.context().global.get("globalValue","memory1",function(err,val) {
should.equal(undefined);
done();
});
} catch(err) {
done(err);
}
});
changeNode1.context().global.set("globalValue","Hello World!","memory1",function (err) {
changeNode1.receive({payload:""});
});
});
});
});
it('deletes the value of a multi-level message property', function(done) {
var flow = [{"id":"changeNode1","type":"change","action":"delete","property":"foo.bar","from":"","to":"","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.should.not.have.property('foo.bar');
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"This won't get through!", foo:{bar:"This will be deleted!"}});
});
});
it('sends unaltered message if the deleted message property does not exist', function(done) {
var flow = [{"id":"changeNode1","type":"change","action":"delete","property":"foo","from":"","to":"","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.should.not.have.property('foo');
msg.payload.should.equal('payload');
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"payload"});
});
});
it('sends unaltered message if a deleted multi-level message property does not exist', function(done) {
var flow = [{"id":"changeNode1","type":"change","action":"delete","property":"foo.bar","from":"","to":"","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.should.not.have.property('foo.bar');
msg.payload.should.equal('payload');
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"payload"});
});
});
});
describe("#move", function() {
it('moves the value of the message property', function(done) {
var flow = [{"id":"changeNode1","type":"change","rules":[{"t":"move","p":"topic","pt":"msg","to":"payload","tot":"msg"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.should.not.have.property('topic');
msg.should.have.property('payload');
msg.payload.should.equal("You've got to move it move it.");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({topic:"You've got to move it move it.", payload:{foo:"bar"}});
});
});
it('moves the value of a message property object', function(done) {
var flow = [{"id":"changeNode1","type":"change","rules":[{"t":"move","p":"topic","pt":"msg","to":"payload","tot":"msg"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.should.not.have.property('topic');
msg.should.have.property('payload');
msg.payload.should.have.property('foo');
msg.payload.foo.should.have.property('bar');
msg.payload.foo.bar.should.equal(1);
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({topic:{foo:{bar:1}}, payload:"String"});
});
});
it('moves the value of a message property object to itself', function(done) {
var flow = [{"id":"changeNode1","type":"change","rules":[{"t":"move","p":"payload","pt":"msg","to":"payload","tot":"msg"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.should.have.property('payload');
msg.payload.should.equal("bar");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"bar"});
});
});
it('moves the value of a message property object to a sub-property', function(done) {
var flow = [{"id":"changeNode1","type":"change","rules":[{"t":"move","p":"payload","pt":"msg","to":"payload.foo","tot":"msg"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.should.have.property('payload');
msg.payload.should.have.property('foo');
msg.payload.foo.should.equal("bar");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"bar"});
});
});
it('moves the value of a message sub-property object to a property', function(done) {
var flow = [{"id":"changeNode1","type":"change","rules":[{"t":"move","p":"payload.foo","pt":"msg","to":"payload","tot":"msg"}],"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.should.have.property('payload');
msg.payload.should.equal("bar");
(typeof msg.payload).should.equal("string");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:{foo:"bar"}});
});
});
});
describe('- multiple rules', function() {
it('handles multiple rules', function(done) {
var flow = [{"id":"changeNode1","type":"change","wires":[["helperNode1"]],
rules:[
{t:"set",p:"payload",to:"newValue"},
{t:"change",p:"changeProperty",from:"this",to:"that"},
{t:"delete",p:"deleteProperty"}
]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("newValue");
msg.changeProperty.should.equal("change that value");
should.not.exist(msg.deleteProperty);
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({
payload:"changeMe",
changeProperty:"change this value",
deleteProperty:"delete this value"
});
});
});
it('applies multiple rules in order', function(done) {
var flow = [{"id":"changeNode1","type":"change","wires":[["helperNode1"]],
rules:[
{t:"set",p:"payload",to:"a this (hi)"},
{t:"change",p:"payload",from:"this",to:"that"},
{t:"change",p:"payload",from:"\\(.*\\)",to:"[new]",re:true},
]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal("a that [new]");
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({
payload:"changeMe"
});
});
});
it('can access two persistable flow context property', function(done) {
var flow = [{"id":"changeNode1", "z":"t1", "type":"change",
"wires":[["helperNode1"]],
rules:[
{"t":"set", "p":"val0", "to":"#:(memory0)::val", "tot":"flow"},
{"t":"set", "p":"val1", "to":"#:(memory1)::val", "tot":"flow"}
]},
{id:"helperNode1", "z":"t1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
initContext(function () {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.should.have.property("val0", "foo");
msg.should.have.property("val1", "bar");
done();
} catch(err) {
done(err);
}
});
var flow = changeNode1.context().flow;
flow.set("val", "foo", "memory0", function (err) {
flow.set("val", "bar", "memory1", function (err) {
changeNode1.receive({payload:""});
});
});
});
});
});
it('can access two persistable global context property', function(done) {
var flow = [{"id":"changeNode1", "z":"t1", "type":"change",
"wires":[["helperNode1"]],
rules:[
{"t":"set", "p":"val0", "to":"#:(memory0)::val", "tot":"global"},
{"t":"set", "p":"val1", "to":"#:(memory1)::val", "tot":"global"}
]},
{id:"helperNode1", "z":"t1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
initContext(function () {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.should.have.property("val0", "foo");
msg.should.have.property("val1", "bar");
done();
} catch(err) {
done(err);
}
});
var global = changeNode1.context().global;
global.set("val", "foo", "memory0", function (err) {
global.set("val", "bar", "memory1", function (err) {
changeNode1.receive({payload:""});
});
});
});
});
});
it('can access persistable global & flow context property', function(done) {
var flow = [{"id":"changeNode1", "z":"t1", "type":"change",
"wires":[["helperNode1"]],
rules:[
{"t":"set", "p":"val0", "to":"#:(memory0)::val", "tot":"flow"},
{"t":"set", "p":"val1", "to":"#:(memory1)::val", "tot":"global"}
]},
{id:"helperNode1", "z":"t1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
initContext(function () {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.should.have.property("val0", "foo");
msg.should.have.property("val1", "bar");
done();
} catch(err) {
done(err);
}
});
var context = changeNode1.context();
var flow = context.flow;
var global = context.global;
flow.set("val", "foo", "memory0", function (err) {
global.set("val", "bar", "memory1", function (err) {
changeNode1.receive({payload:""});
});
});
});
});
});
});
});
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