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node-red/test/nodes/core/function/80-template_spec.js
2019-08-21 14:23:23 +01:00

499 lines
23 KiB
JavaScript

/**
* 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 templateNode = require("nr-test-utils").require("@node-red/nodes/core/function/80-template.js");
var Context = require("nr-test-utils").require("@node-red/runtime/lib/nodes/context");
var helper = require("node-red-node-test-helper");
describe('template node', function() {
before(function(done) {
helper.startServer(done);
});
after(function(done) {
helper.stopServer(done);
});
beforeEach(function(done) {
done();
});
function initContext(done) {
Context.init({
contextStorage: {
memory0: { // do not use (for excluding effect fallback)
module: "memory"
},
memory1: {
module: "memory"
},
memory2: {
module: "memory"
}
}
});
Context.load().then(function () {
done();
});
}
afterEach(function() {
helper.unload().then(function () {
return Context.clean({allNodes:{}});
}).then(function () {
return Context.close();
});
});
it('should modify payload using node-configured template', function(done) {
var flow = [{id:"n1", type:"template", field:"payload", template:"payload={{payload}}",wires:[["n2"]]},{id:"n2",type:"helper"}];
helper.load(templateNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
try {
msg.should.have.property('topic', 'bar');
msg.should.have.property('payload', 'payload=foo');
msg.should.have.property('template', 'this should be ignored as the node has its own template {{payload}}');
done();
} catch(err) {
done(err);
}
});
n1.receive({payload:"foo",topic: "bar", template: "this should be ignored as the node has its own template {{payload}}"});
});
});
it('should modify the configured property using msg.template', function(done) {
var flow = [{id:"n1", type:"template", field:"randomProperty", template:"",wires:[["n2"]]},{id:"n2",type:"helper"}];
helper.load(templateNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
msg.should.have.property('topic', 'bar');
msg.should.have.property('payload', 'foo');
msg.should.have.property('template', 'payload={{payload}}');
msg.should.have.property('randomProperty', 'payload=foo');
done();
});
n1.receive({payload:"foo", topic: "bar", template: "payload={{payload}}"});
});
});
it('should be able to overwrite msg.template using the template from msg.template', function(done) {
var flow = [{id:"n1", type:"template", field:"payload", template:"",wires:[["n2"]]},{id:"n2",type:"helper"}];
helper.load(templateNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
msg.should.have.property('topic', 'bar');
msg.should.have.property('payload', 'topic=bar');
msg.should.have.property('template', 'topic={{topic}}');
done();
});
n1.receive({payload:"foo", topic: "bar", template: "topic={{topic}}"});
});
});
it('should modify payload from msg.template', function(done) {
var flow = [{id:"n1", type:"template", field:"payload", template:"",wires:[["n2"]]},{id:"n2",type:"helper"}];
helper.load(templateNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
var received = [];
n2.on("input", function(msg) {
try {
received.push(msg);
if (received.length === 3) {
received[0].should.have.property('topic', 'bar');
received[0].should.have.property('payload', 'topic=bar');
received[0].should.have.property('template', 'topic={{topic}}');
received[1].should.have.property('topic', 'another bar');
received[1].should.have.property('payload', 'topic=another bar');
received[1].should.have.property('template', 'topic={{topic}}');
received[2].should.have.property('topic', 'bar');
received[2].should.have.property('payload', 'payload=foo');
received[2].should.have.property('template', 'payload={{payload}}');
done();
}
} catch(err) {
done(err);
}
});
n1.receive({payload:"foo", topic: "bar", template: "topic={{topic}}"});
n1.receive({payload:"foo", topic: "another bar", template: "topic={{topic}}"});
n1.receive({payload:"foo", topic: "bar", template: "payload={{payload}}"});
});
});
it('should modify payload from flow context', function(done) {
var flow = [{id:"n1",z:"t1", type:"template", field:"payload", template:"payload={{flow.value}}",wires:[["n2"]]},{id:"n2",z:"t1",type:"helper"}];
helper.load(templateNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n1.context().flow.set("value","foo");
n2.on("input", function(msg) {
msg.should.have.property('topic', 'bar');
msg.should.have.property('payload', 'payload=foo');
done();
});
n1.receive({payload:"foo",topic: "bar"});
});
});
it('should modify payload from persistable flow context', function(done) {
var flow = [{id:"n1",z:"t1", type:"template", field:"payload", template:"payload={{flow[memory1].value}}",wires:[["n2"]]},{id:"n2",z:"t1",type:"helper"}];
helper.load(templateNode, flow, function() {
initContext(function () {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
msg.should.have.property('topic', 'bar');
msg.should.have.property('payload', 'payload=foo');
done();
});
n1.context().flow.set("value","foo","memory1",function (err) {
n1.receive({payload:"foo",topic: "bar"});
});
});
});
});
it('should handle nested context tags - property not set', function(done) {
// This comes from the Coursera Node-RED course and is a good example of
// multiple conditional tags
var template = `{{#flow.time}}time={{flow.time}}{{/flow.time}}{{^flow.time}}!time{{/flow.time}}{{#flow.random}}random={{flow.random}}randomtime={{flow.randomtime}}{{/flow.random}}{{^flow.random}}!random{{/flow.random}}`;
var flow = [{id:"n1",z:"t1", type:"template", field:"payload", template:template,wires:[["n2"]]},{id:"n2",z:"t1",type:"helper"}];
helper.load(templateNode, flow, function() {
initContext(function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
try {
msg.should.have.property('topic', 'bar');
msg.should.have.property('payload', '!time!random');
done();
} catch(err) {
done(err);
}
});
n1.receive({payload:"foo",topic: "bar"});
});
});
})
it('should handle nested context tags - property set', function(done) {
// This comes from the Coursera Node-RED course and is a good example of
// multiple conditional tags
var template = `{{#flow.time}}time={{flow.time}}{{/flow.time}}{{^flow.time}}!time{{/flow.time}}{{#flow.random}}random={{flow.random}}randomtime={{flow.randomtime}}{{/flow.random}}{{^flow.random}}!random{{/flow.random}}`;
var flow = [{id:"n1",z:"t1", type:"template", field:"payload", template:template,wires:[["n2"]]},{id:"n2",z:"t1",type:"helper"}];
helper.load(templateNode, flow, function() {
initContext(function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
try {
msg.should.have.property('topic', 'bar');
msg.should.have.property('payload', 'time=123random=456randomtime=789');
done();
} catch(err) {
done(err);
}
});
n1.context().flow.set(["time","random","randomtime"],["123","456","789"],function (err) {
n1.receive({payload:"foo",topic: "bar"});
});
});
});
})
it('should modify payload from two persistable flow context', function(done) {
var flow = [{id:"n1",z:"t1", type:"template", field:"payload", template:"payload={{flow[memory1].value}}/{{flow[memory2].value}}",wires:[["n2"]]},{id:"n2",z:"t1",type:"helper"}];
helper.load(templateNode, flow, function() {
initContext(function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
msg.should.have.property('topic', 'bar');
msg.should.have.property('payload', 'payload=foo/bar');
done();
});
n1.context().flow.set("value","foo","memory1",function (err) {
n1.context().flow.set("value","bar","memory2",function (err) {
n1.receive({payload:"foo",topic: "bar"});
});
});
});
});
});
it('should modify payload from global context', function(done) {
var flow = [{id:"n1",z:"t1", type:"template", field:"payload", template:"payload={{global.value}}",wires:[["n2"]]},{id:"n2",z:"t1",type:"helper"}];
helper.load(templateNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n1.context().global.set("value","foo");
n2.on("input", function(msg) {
msg.should.have.property('topic', 'bar');
msg.should.have.property('payload', 'payload=foo');
done();
});
n1.receive({payload:"foo",topic: "bar"});
});
});
it('should modify payload from persistable global context', function(done) {
var flow = [{id:"n1",z:"t1", type:"template", field:"payload", template:"payload={{global[memory1].value}}",wires:[["n2"]]},{id:"n2",z:"t1",type:"helper"}];
helper.load(templateNode, flow, function() {
initContext(function () {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
msg.should.have.property('topic', 'bar');
msg.should.have.property('payload', 'payload=foo');
done();
});
n1.context().global.set("value","foo","memory1", function (err) {
n1.receive({payload:"foo",topic: "bar"});
});
});
});
});
it('should modify payload from two persistable global context', function(done) {
var flow = [{id:"n1",z:"t1", type:"template", field:"payload", template:"payload={{global[memory1].value}}/{{global[memory2].value}}",wires:[["n2"]]},{id:"n2",z:"t1",type:"helper"}];
helper.load(templateNode, flow, function() {
initContext(function () {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
msg.should.have.property('topic', 'bar');
msg.should.have.property('payload', 'payload=foo/bar');
done();
});
n1.context().global.set("value","foo","memory1", function (err) {
n1.context().global.set("value","bar","memory2", function (err) {
n1.receive({payload:"foo",topic: "bar"});
});
});
});
});
});
it('should modify payload from persistable flow & global context', function(done) {
var flow = [{id:"n1",z:"t1", type:"template", field:"payload", template:"payload={{flow[memory1].value}}/{{global[memory1].value}}",wires:[["n2"]]},{id:"n2",z:"t1",type:"helper"}];
helper.load(templateNode, flow, function() {
initContext(function () {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
msg.should.have.property('topic', 'bar');
msg.should.have.property('payload', 'payload=foo/bar');
done();
});
n1.context().flow.set("value","foo","memory1", function (err) {
n1.context().global.set("value","bar","memory1", function (err) {
n1.receive({payload:"foo",topic: "bar"});
});
});
});
});
});
it('should handle missing node context', function(done) {
// this is artificial test because in flow there is missing z property (probably never happen in real usage)
var flow = [{id:"n1",type:"template", field:"payload", template:"payload={{flow.value}},{{global.value}}",wires:[["n2"]]},{id:"n2",type:"helper"}];
helper.load(templateNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
msg.should.have.property('topic', 'bar');
msg.should.have.property('payload', 'payload=,');
done();
});
n1.receive({payload:"foo",topic: "bar"});
});
});
it('should handle escape characters in Mustache format and JSON output mode', function(done) {
var flow = [{id:"n1", type:"template", field:"payload", syntax:"mustache", template:"{\"data\":\"{{payload}}\"}", output:"json", wires:[["n2"]]},{id:"n2",type:"helper"}];
helper.load(templateNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
msg.payload.should.have.property('data', 'line\t1\nline\\2\r\nline\b3\f');
done();
});
n1.receive({payload:"line\t1\nline\\2\r\nline\b3\f"});
});
});
it('should modify payload in plain text mode', function(done) {
var flow = [{id:"n1", type:"template", field:"payload", syntax:"plain", template:"payload={{payload}}",wires:[["n2"]]},{id:"n2",type:"helper"}];
helper.load(templateNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
msg.should.have.property('topic', 'bar');
msg.should.have.property('payload', 'payload={{payload}}');
done();
});
n1.receive({payload:"foo",topic: "bar"});
});
});
it('should modify flow context', function(done) {
var flow = [{id:"n1",z:"t1", type:"template", field:"payload", fieldType:"flow", template:"payload={{payload}}",wires:[["n2"]]},{id:"n2",z:"t1",type:"helper"}];
helper.load(templateNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
// mesage is intact
msg.should.have.property('topic', 'bar');
msg.should.have.property('payload', 'foo');
// result is in flow context
n2.context().flow.get("payload").should.equal("payload=foo");
done();
});
n1.receive({payload:"foo",topic: "bar"});
});
});
it('should modify persistable flow context', function(done) {
var flow = [{id:"n1",z:"t1", type:"template", field:"#:(memory1)::payload", fieldType:"flow", template:"payload={{payload}}",wires:[["n2"]]},{id:"n2",z:"t1",type:"helper"}];
helper.load(templateNode, flow, function() {
initContext(function () {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
// mesage is intact
msg.should.have.property('topic', 'bar');
msg.should.have.property('payload', 'foo');
// result is in flow context
n2.context().flow.get("payload", "memory1", function (err, val) {
val.should.equal("payload=foo");
done();
});
});
n1.receive({payload:"foo",topic: "bar"});
});
});
});
it('should modify global context', function(done) {
var flow = [{id:"n1",z:"t1", type:"template", field:"payload", fieldType:"global", template:"payload={{payload}}",wires:[["n2"]]},{id:"n2",z:"t1",type:"helper"}];
helper.load(templateNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
// mesage is intact
msg.should.have.property('topic', 'bar');
msg.should.have.property('payload', 'foo');
// result is in global context
n2.context().global.get("payload").should.equal("payload=foo");
done();
});
n1.receive({payload:"foo",topic: "bar"});
});
});
it('should modify persistable global context', function(done) {
var flow = [{id:"n1",z:"t1", type:"template", field:"#:(memory1)::payload", fieldType:"global", template:"payload={{payload}}",wires:[["n2"]]},{id:"n2",z:"t1",type:"helper"}];
helper.load(templateNode, flow, function() {
initContext(function () {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
// mesage is intact
msg.should.have.property('topic', 'bar');
msg.should.have.property('payload', 'foo');
// result is in global context
n2.context().global.get("payload", "memory1", function (err, val) {
val.should.equal("payload=foo");
done();
});
});
n1.receive({payload:"foo",topic: "bar"});
});
});
});
it('should handle if the field isn\'t set', function(done) {
var flow = [{id:"n1", type:"template", template: "payload={{payload}}",wires:[["n2"]]},{id:"n2",type:"helper"}];
helper.load(templateNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
msg.should.have.property('topic', 'bar');
msg.should.have.property('payload', 'payload=foo');
done();
});
n1.receive({payload:"foo",topic: "bar"});
});
});
it('should handle deeper objects', function(done) {
var flow = [{id:"n1", type:"template", field: "topic.foo.bar", template: "payload={{payload.doh.rei.me}}",wires:[["n2"]]},{id:"n2",type:"helper"}];
helper.load(templateNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
msg.should.have.property('topic');
msg.topic.should.have.property('foo');
msg.topic.foo.should.have.a.property('bar', 'payload=foo');
done();
});
n1.receive({payload:{doh:{rei:{me:"foo"}}}});
});
});
it('should handle block contexts objects', function(done) {
var flow = [{id:"n1", type:"template", template: "A{{#payload.A}}{{payload.A}}{{.}}{{/payload.A}}B",wires:[["n2"]]},{id:"n2",type:"helper"}];
helper.load(templateNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
n2.on("input", function(msg) {
msg.should.have.property('payload','AabcabcB');
done();
});
n1.receive({payload:{A:"abc"}});
});
});
it('should raise error if passed bad template', function(done) {
var flow = [{id:"n1", type:"template", field: "payload", template: "payload={{payload",wires:[["n2"]]},{id:"n2",type:"helper"}];
helper.load(templateNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
setTimeout(function() {
var logEvents = helper.log().args.filter(function(evt) {
return evt[0].type == "template";
});
logEvents.should.have.length(1);
logEvents[0][0].should.have.a.property('msg');
logEvents[0][0].msg.toString().should.startWith("Unclosed tag at ");
done();
},25);
n1.receive({payload:"foo"});
});
});
});