mirror of
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119 lines
4.7 KiB
JavaScript
119 lines
4.7 KiB
JavaScript
/**
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* Copyright 2014 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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var should = require("should");
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var jsonNode = require("../../../../nodes/core/parsers/70-JSON.js");
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var helper = require("../../helper.js");
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describe('JSON node', function() {
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before(function(done) {
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helper.startServer(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:"jsonNode1", type:"json", name: "jsonNode" }];
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helper.load(jsonNode, flow, function() {
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var jsonNode1 = helper.getNode("jsonNode1");
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jsonNode1.should.have.property('name', 'jsonNode');
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done();
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});
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});
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it('should convert a valid json string to a javascript object', function(done) {
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var flow = [{id:"jn1",type:"json",wires:[["jn2"]],func:"return msg;"},
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{id:"jn2", type:"helper"}];
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helper.load(jsonNode, flow, function() {
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var jn1 = helper.getNode("jn1");
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var jn2 = helper.getNode("jn2");
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jn2.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 jsonString = '{"employees":[{"firstName":"John", "lastName":"Smith"}]}';
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jn1.receive({payload:jsonString,topic: "bar"});
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});
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});
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it('should convert a javascript object to a json string', function(done) {
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var flow = [{id:"jn1",type:"json",wires:[["jn2"]],func:"return msg;"},
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{id:"jn2", type:"helper"}];
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helper.load(jsonNode, flow, function() {
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var jn1 = helper.getNode("jn1");
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var jn2 = helper.getNode("jn2");
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jn2.on("input", function(msg) {
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msg.should.have.property('topic', 'bar');
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should.equal(msg.payload, '{"employees":[{"firstName":"John","lastName":"Smith"}]}');
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done();
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});
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var obj = {employees:[{firstName:"John", lastName:"Smith"}]};
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jn1.receive({payload:obj,topic: "bar"});
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});
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});
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it('should log an error if asked to parse an invalid json string', function(done) {
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var flow = [{id:"jn1",type:"json",wires:[["jn2"]],func:"return msg;"},
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{id:"jn2", type:"helper"}];
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helper.load(jsonNode, flow, function() {
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try {
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helper.log().called.should.be.false;
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var jn1 = helper.getNode("jn1");
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var jn2 = helper.getNode("jn2");
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jn1.receive({payload:'foo',topic: "bar"});
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helper.log().called.should.be.true;
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var logEvents = helper.log().args.filter(function(evt) {
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return evt[0].level == "info";
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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',"SyntaxError: Unexpected token o"+ "\nfoo");
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done();
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} catch(err) {
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done(err);
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}
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});
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});
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it('should log an error if asked to parse something thats not json or js', function(done) {
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var flow = [{id:"jn1",type:"json",wires:[["jn2"]],func:"return msg;"},
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{id:"jn2", type:"helper"}];
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helper.load(jsonNode, flow, function() {
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try {
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helper.log().called.should.be.false;
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var jn1 = helper.getNode("jn1");
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var jn2 = helper.getNode("jn2");
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jn1.receive({payload:1,topic: "bar"});
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helper.log().called.should.be.true;
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var logEvents = helper.log().args.filter(function(evt) {
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return evt[0].level == "info";
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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',"dropped: 1");
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done();
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} catch(err) {
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done(err);
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}
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});
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});
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});
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