/**
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* Copyright JS Foundation and other contributors, http://js.foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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var should = require("should");
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var yamlNode = require("nr-test-utils").require("@node-red/nodes/core/parsers/70-YAML.js");
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var helper = require("node-red-node-test-helper");
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describe('YAML node', function() {
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before(function(done) {
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helper.startServer(done);
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});
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after(function(done) {
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helper.stopServer(done);
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});
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afterEach(function() {
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helper.unload();
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});
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it('should be loaded', function(done) {
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var flow = [{id:"yamlNode1", type:"yaml", name: "yamlNode" }];
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helper.load(yamlNode, flow, function() {
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var yamlNode1 = helper.getNode("yamlNode1");
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yamlNode1.should.have.property('name', 'yamlNode');
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done();
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});
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});
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it('should convert a valid yaml string to a javascript object', function(done) {
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var flow = [{id:"yn1",type:"yaml",wires:[["yn2"]],func:"return msg;"},
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{id:"yn2", type:"helper"}];
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helper.load(yamlNode, flow, function() {
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var yn1 = helper.getNode("yn1");
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var yn2 = helper.getNode("yn2");
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yn2.on("input", function(msg) {
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msg.should.have.property('topic', 'bar');
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msg.payload.should.have.property('employees');
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msg.payload.employees[0].should.have.property('firstName', 'John');
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msg.payload.employees[0].should.have.property('lastName', 'Smith');
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done();
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});
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var yamlString = "employees:\n - firstName: John\n lastName: Smith\n";
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yn1.receive({payload:yamlString,topic: "bar"});
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});
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});
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it('should convert a valid yaml string to a javascript object - using another property', function(done) {
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var flow = [{id:"yn1",type:"yaml",property:"foo",wires:[["yn2"]],func:"return msg;"},
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{id:"yn2", type:"helper"}];
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helper.load(yamlNode, flow, function() {
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var yn1 = helper.getNode("yn1");
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var yn2 = helper.getNode("yn2");
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yn2.on("input", function(msg) {
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msg.should.have.property('topic', 'bar');
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msg.foo.should.have.property('employees');
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msg.foo.employees[0].should.have.property('firstName', 'John');
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msg.foo.employees[0].should.have.property('lastName', 'Smith');
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done();
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});
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var yamlString = "employees:\n - firstName: John\n lastName: Smith\n";
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yn1.receive({foo:yamlString,topic: "bar"});
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});
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});
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it('should convert a javascript object to a yaml string', function(done) {
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var flow = [{id:"yn1",type:"yaml",wires:[["yn2"]],func:"return msg;"},
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{id:"yn2", type:"helper"}];
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helper.load(yamlNode, flow, function() {
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var yn1 = helper.getNode("yn1");
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var yn2 = helper.getNode("yn2");
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yn2.on("input", function(msg) {
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should.equal(msg.payload, "employees:\n - firstName: John\n lastName: Smith\n");
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done();
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});
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var obj = {employees:[{firstName:"John", lastName:"Smith"}]};
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yn1.receive({payload:obj});
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});
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});
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it('should convert a javascript object to a yaml string - using another property', function(done) {
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var flow = [{id:"yn1",type:"yaml",property:"foo",wires:[["yn2"]],func:"return msg;"},
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{id:"yn2", type:"helper"}];
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helper.load(yamlNode, flow, function() {
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var yn1 = helper.getNode("yn1");
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var yn2 = helper.getNode("yn2");
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yn2.on("input", function(msg) {
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should.equal(msg.foo, "employees:\n - firstName: John\n lastName: Smith\n");
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done();
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});
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var obj = {employees:[{firstName:"John", lastName:"Smith"}]};
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yn1.receive({foo:obj});
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});
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});
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it('should convert an array to a yaml string', function(done) {
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var flow = [{id:"yn1",type:"yaml",wires:[["yn2"]],func:"return msg;"},
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{id:"yn2", type:"helper"}];
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helper.load(yamlNode, flow, function() {
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var yn1 = helper.getNode("yn1");
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var yn2 = helper.getNode("yn2");
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yn2.on("input", function(msg) {
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should.equal(msg.payload, "- 1\n- 2\n- 3\n");
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done();
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});
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var obj = [1,2,3];
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yn1.receive({payload:obj});
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});
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});
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it('should log an error if asked to parse an invalid yaml string', function(done) {
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var flow = [{id:"yn1",type:"yaml",wires:[["yn2"]],func:"return msg;"},
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{id:"yn2", type:"helper"}];
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helper.load(yamlNode, flow, function() {
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try {
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var yn1 = helper.getNode("yn1");
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var yn2 = helper.getNode("yn2");
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yn1.receive({payload:'employees:\n-firstName: John\n- lastName: Smith\n',topic: "bar"});
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setTimeout(function() {
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try {
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var logEvents = helper.log().args.filter(function(evt) {
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return evt[0].type == "yaml";
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});
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logEvents.should.have.length(1);
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logEvents[0][0].should.have.a.property('msg');
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logEvents[0][0].msg.should.startWith("end of the stream");
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logEvents[0][0].should.have.a.property('level',helper.log().ERROR);
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done();
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} catch(err) { done(err) }
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},50);
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} catch(err) {
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done(err);
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}
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});
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});
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it('should log an error if asked to parse something thats not yaml or js', function(done) {
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var flow = [{id:"yn1",type:"yaml",wires:[["yn2"]],func:"return msg;"},
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{id:"yn2", type:"helper"}];
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helper.load(yamlNode, flow, function() {
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var yn1 = helper.getNode("yn1");
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var yn2 = helper.getNode("yn2");
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setTimeout(function() {
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try {
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var logEvents = helper.log().args.filter(function(evt) {
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return evt[0].type == "yaml";
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});
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logEvents.should.have.length(3);
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logEvents[0][0].should.have.a.property('msg');
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logEvents[0][0].msg.toString().should.eql('yaml.errors.dropped');
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logEvents[1][0].should.have.a.property('msg');
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logEvents[1][0].msg.toString().should.eql('yaml.errors.dropped');
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logEvents[2][0].should.have.a.property('msg');
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logEvents[2][0].msg.toString().should.eql('yaml.errors.dropped-object');
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done();
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} catch(err) {
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done(err);
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}
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},150);
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yn1.receive({payload:true});
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yn1.receive({payload:1});
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yn1.receive({payload:Buffer.from("a")});
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});
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});
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it('should pass straight through if no payload set', function(done) {
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var flow = [{id:"yn1",type:"yaml",wires:[["yn2"]],func:"return msg;"},
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{id:"yn2", type:"helper"}];
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helper.load(yamlNode, flow, function() {
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var yn1 = helper.getNode("yn1");
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var yn2 = helper.getNode("yn2");
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yn2.on("input", function(msg) {
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msg.should.have.property('topic', 'bar');
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msg.should.not.have.property('payload');
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done();
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});
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yn1.receive({topic: "bar"});
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});
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});
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});
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