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node-red/test/nodes/subflow/subflow_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 functionNode = require("nr-test-utils").require("@node-red/nodes/core/core/80-function.js");
var helper = require("node-red-node-test-helper");
// Notice:
// - nodes should have x, y, z property when defining subflow.
describe('subflow', function() {
before(function(done) {
helper.startServer(done);
});
after(function(done) {
helper.stopServer(done);
});
afterEach(function() {
helper.unload();
});
it('should define subflow', function(done) {
var flow = [
{id:"t1", type:"tab"},
{id:"n1", z:"t1", type:"subflow:s1", wires:[["n2"]]},
{id:"n2", z:"t1", type:"helper", wires:[]},
// Subflow
{id:"s1", type:"subflow", name:"Subflow", info:"",
in:[{wires:[ {id:"s1-n1"} ]}],
out:[{wires:[ {id:"s1-n1", port:0} ]}]},
{id:"s1-n1", z:"s1", type:"function",
func:"return msg;", wires:[]}
];
helper.load(functionNode, flow, function() {
done();
});
});
it('should pass data to/from subflow', function(done) {
var flow = [
{id:"t0", type:"tab", label:"", disabled:false, info:""},
{id:"n1", x:10, y:10, z:"t0", type:"subflow:s1", wires:[["n2"]]},
{id:"n2", x:10, y:10, z:"t0", type:"helper", wires:[]},
// Subflow
{id:"s1", type:"subflow", name:"Subflow", info:"",
in:[{
x:10, y:10,
wires:[ {id:"s1-n1"} ]
}],
out:[{
x:10, y:10,
wires:[ {id:"s1-n1", port:0} ]
}]
},
{id:"s1-n1", x:10, y:10, z:"s1", type:"function",
func:"msg.payload = msg.payload+'bar'; return msg;", wires:[]}
];
helper.load(functionNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
msg.should.have.property("payload", "foobar");
done();
});
n1.receive({payload:"foo"});
});
});
it('should pass data to/from nested subflow', function(done) {
var flow = [
{id:"t0", type:"tab", label:"", disabled:false, info:""},
{id:"n1", x:10, y:10, z:"t0", type:"subflow:s1", wires:[["n2"]]},
{id:"n2", x:10, y:10, z:"t0", type:"helper", wires:[]},
// Subflow1
{id:"s1", type:"subflow", name:"Subflow1", info:"",
in:[{
x:10, y:10,
wires:[ {id:"s1-n1"} ]
}],
out:[{
x:10, y:10,
wires:[ {id:"s1-n2", port:0} ]
}]
},
{id:"s1-n1", x:10, y:10, z:"s1", type:"subflow:s2",
wires:[["s1-n2"]]},
{id:"s1-n2", x:10, y:10, z:"s1", type:"function",
func:"msg.payload = msg.payload+'baz'; return msg;", wires:[]},
// Subflow2
{id:"s2", type:"subflow", name:"Subflow2", info:"",
in:[{
x:10, y:10,
wires:[ {id:"s2-n1"} ]
}],
out:[{
x:10, y:10,
wires:[ {id:"s2-n1", port:0} ]
}]
},
{id:"s2-n1", x:10, y:10, z:"s2", type:"function",
func:"msg.payload=msg.payload+'bar'; return msg;", wires:[]}
];
helper.load(functionNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
msg.should.have.property("payload", "foobarbaz");
done();
});
n1.receive({payload:"foo"});
});
});
it('should access env var of subflow template', function(done) {
var flow = [
{id:"t0", type:"tab", label:"", disabled:false, info:""},
{id:"n1", x:10, y:10, z:"t0", type:"subflow:s1", wires:[["n2"]]},
{id:"n2", x:10, y:10, z:"t0", type:"helper", wires:[]},
// Subflow
{id:"s1", type:"subflow", name:"Subflow", info:"",
env: [
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{name: "K", type: "str", value: "V"}
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],
in:[{
x:10, y:10,
wires:[ {id:"s1-n1"} ]
}],
out:[{
x:10, y:10,
wires:[ {id:"s1-n1", port:0} ]
}]
},
{id:"s1-n1", x:10, y:10, z:"s1", type:"function",
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func:"msg.V = env.get('K'); return msg;",
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wires:[]}
];
helper.load(functionNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
try {
msg.should.have.property("V", "V");
done();
}
catch (e) {
console.log(e);
done(e);
}
});
n1.receive({payload:"foo"});
});
});
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it('should access env var of subflow instance', function(done) {
var flow = [
{id:"t0", type:"tab", label:"", disabled:false, info:""},
{id:"n1", x:10, y:10, z:"t0", type:"subflow:s1",
env: [
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{name: "K", type: "str", value: "V"}
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],
wires:[["n2"]]},
{id:"n2", x:10, y:10, z:"t0", type:"helper", wires:[]},
// Subflow
{id:"s1", type:"subflow", name:"Subflow", info:"",
in:[{
x:10, y:10,
wires:[ {id:"s1-n1"} ]
}],
out:[{
x:10, y:10,
wires:[ {id:"s1-n1", port:0} ]
}]
},
{id:"s1-n1", x:10, y:10, z:"s1", type:"function",
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func:"msg.V = env.get('K'); return msg;",
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wires:[]}
];
helper.load(functionNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
try {
msg.should.have.property("V", "V");
done();
}
catch (e) {
console.log(e);
done(e);
}
});
n1.receive({payload:"foo"});
});
});
it('should access last env var with same name', function(done) {
var flow = [
{id:"t0", type:"tab", label:"", disabled:false, info:""},
{id:"n1", x:10, y:10, z:"t0", type:"subflow:s1",
env: [
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{name: "K", type: "str", value: "V0"},
{name: "X", type: "str", value: "VX"},
{name: "K", type: "str", value: "V1"}
],
wires:[["n2"]]},
{id:"n2", x:10, y:10, z:"t0", type:"helper", wires:[]},
// Subflow
{id:"s1", type:"subflow", name:"Subflow", info:"",
in:[{
x:10, y:10,
wires:[ {id:"s1-n1"} ]
}],
out:[{
x:10, y:10,
wires:[ {id:"s1-n1", port:0} ]
}]
},
{id:"s1-n1", x:10, y:10, z:"s1", type:"function",
func:"msg.V = env.get('K'); return msg;",
wires:[]}
];
helper.load(functionNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
try {
msg.should.have.property("V", "V1");
done();
}
catch (e) {
console.log(e);
done(e);
}
});
n1.receive({payload:"foo"});
});
});
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it('should access typed value of env var', function(done) {
var flow = [
{id:"t0", type:"tab", label:"", disabled:false, info:""},
{id:"n1", x:10, y:10, z:"t0", type:"subflow:s1",
env: [
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{name: "KS", type: "str", value: "STR"},
{name: "KN", type: "num", value: "100"},
{name: "KB", type: "bool", value: "true"},
{name: "KJ", type: "json", value: "[1,2,3]"},
{name: "Kb", type: "bin", value: "[65,65]"},
{name: "KR", type: "re", value: "[A-Z]"},
{name: "KD", type: "date", value: ""}
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],
wires:[["n2"]]},
{id:"n2", x:10, y:10, z:"t0", type:"helper", wires:[]},
// Subflow
{id:"s1", type:"subflow", name:"Subflow", info:"",
in:[{
x:10, y:10,
wires:[ {id:"s1-n1"} ]
}],
out:[{
x:10, y:10,
wires:[ {id:"s1-n1", port:0} ]
}]
},
{id:"s1-n1", x:10, y:10, z:"s1", type:"function",
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func:"msg.VS = env.get('KS'); msg.VN = env.get('KN'); msg.VB = env.get('KB'); msg.VJ = env.get('KJ'); msg.Vb = env.get('Kb'); msg.VR = env.get('KR'); msg.VD = env.get('KD'); return msg;",
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wires:[]}
];
helper.load(functionNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
try {
msg.should.have.property("VS", "STR");
msg.should.have.property("VN", 100);
msg.should.have.property("VB", true);
msg.should.have.property("VJ", [1,2,3]);
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msg.should.have.property("Vb");
should.ok(msg.Vb instanceof Buffer);
msg.should.have.property("VR");
should.ok(msg.VR instanceof RegExp);
msg.should.have.property("VD");
should.ok((typeof msg.VD) === "number");
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done();
}
catch (e) {
console.log(e);
done(e);
}
});
n1.receive({payload:"foo"});
});
});
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it('should overwrite env var of subflow template by env var of subflow instance', function(done) {
var flow = [
{id:"t0", type:"tab", label:"", disabled:false, info:""},
{id:"n1", x:10, y:10, z:"t0", type:"subflow:s1",
env: [
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{name: "K", type: "str", value: "V"}
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],
wires:[["n2"]]},
{id:"n2", x:10, y:10, z:"t0", type:"helper", wires:[]},
// Subflow
{id:"s1", type:"subflow", name:"Subflow", info:"",
env: [
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{name: "K", type: "str", value: "TV"}
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],
in:[{
x:10, y:10,
wires:[ {id:"s1-n1"} ]
}],
out:[{
x:10, y:10,
wires:[ {id:"s1-n1", port:0} ]
}]
},
{id:"s1-n1", x:10, y:10, z:"s1", type:"function",
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func:"msg.V = env.get('K'); return msg;",
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wires:[]}
];
helper.load(functionNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
try {
msg.should.have.property("V", "V");
done();
}
catch (e) {
console.log(e);
done(e);
}
});
n1.receive({payload:"foo"});
});
});
it('should access env var of parent subflow template', function(done) {
var flow = [
{id:"t0", type:"tab", label:"", disabled:false, info:""},
{id:"n1", x:10, y:10, z:"t0", type:"subflow:s1", wires:[["n2"]]},
{id:"n2", x:10, y:10, z:"t0", type:"helper", wires:[]},
// Subflow1
{id:"s1", type:"subflow", name:"Subflow1", info:"",
env: [
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{name: "K", type: "str", value: "V"},
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],
in:[{
x:10, y:10,
wires:[ {id:"s1-n1"} ]
}],
out:[{
x:10, y:10,
wires:[ {id:"s1-n2", port:0} ]
}]
},
{id:"s1-n1", x:10, y:10, z:"s1", type:"subflow:s2",
wires:[["s1-n2"]]},
{id:"s1-n2", x:10, y:10, z:"s1", type:"function",
func:"return msg;", wires:[]},
// Subflow2
{id:"s2", type:"subflow", name:"Subflow2", info:"",
in:[{
x:10, y:10,
wires:[ {id:"s2-n1"} ]
}],
out:[{
x:10, y:10,
wires:[ {id:"s2-n1", port:0} ]
}]
},
{id:"s2-n1", x:10, y:10, z:"s2", type:"function",
func:"msg.V = env.get('K'); return msg;",
wires:[]}
];
helper.load(functionNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
msg.should.have.property("V", "V");
done();
});
n1.receive({payload:"foo"});
});
});
it('should access env var of parent subflow instance', function(done) {
var flow = [
{id:"t0", type:"tab", label:"", disabled:false, info:""},
{id:"n1", x:10, y:10, z:"t0", type:"subflow:s1",
env: [
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{name: "K", type: "str", value: "V"}
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],
wires:[["n2"]]},
{id:"n2", x:10, y:10, z:"t0", type:"helper", wires:[]},
// Subflow1
{id:"s1", type:"subflow", name:"Subflow1", info:"",
in:[{
x:10, y:10,
wires:[ {id:"s1-n1"} ]
}],
out:[{
x:10, y:10,
wires:[ {id:"s1-n2", port:0} ]
}]
},
{id:"s1-n1", x:10, y:10, z:"s1", type:"subflow:s2",
wires:[["s1-n2"]]},
{id:"s1-n2", x:10, y:10, z:"s1", type:"function",
func:"return msg;", wires:[]},
// Subflow2
{id:"s2", type:"subflow", name:"Subflow2", info:"",
in:[{
x:10, y:10,
wires:[ {id:"s2-n1"} ]
}],
out:[{
x:10, y:10,
wires:[ {id:"s2-n1", port:0} ]
}]
},
{id:"s2-n1", x:10, y:10, z:"s2", type:"function",
func:"msg.V = env.get('K'); return msg;",
wires:[]}
];
helper.load(functionNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
msg.should.have.property("V", "V");
done();
});
n1.receive({payload:"foo"});
});
});
});