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/**
* Copyright 2014 IBM Corp.
*
* 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 jsonNode = require("../../../../nodes/core/parsers/70-JSON.js");
var helper = require("../../helper.js");
describe('JSON node', function() {
before(function(done) {
helper.startServer(done);
});
afterEach(function() {
helper.unload();
});
it('should be loaded', function(done) {
var flow = [{id:"jsonNode1", type:"json", name: "jsonNode" }];
helper.load(jsonNode, flow, function() {
var jsonNode1 = helper.getNode("jsonNode1");
jsonNode1.should.have.property('name', 'jsonNode');
done();
});
});
it('should convert a valid json string to a javascript object', function(done) {
var flow = [{id:"jn1",type:"json",wires:[["jn2"]],func:"return msg;"},
{id:"jn2", type:"helper"}];
helper.load(jsonNode, flow, function() {
var jn1 = helper.getNode("jn1");
var jn2 = helper.getNode("jn2");
jn2.on("input", function(msg) {
msg.should.have.property('topic', 'bar');
msg.payload.should.have.property('employees');
msg.payload.employees[0].should.have.property('firstName', 'John');
msg.payload.employees[0].should.have.property('lastName', 'Smith');
done();
});
var jsonString = '{"employees":[{"firstName":"John", "lastName":"Smith"}]}';
jn1.receive({payload:jsonString,topic: "bar"});
});
});
it('should convert a javascript object to a json string', function(done) {
var flow = [{id:"jn1",type:"json",wires:[["jn2"]],func:"return msg;"},
{id:"jn2", type:"helper"}];
helper.load(jsonNode, flow, function() {
var jn1 = helper.getNode("jn1");
var jn2 = helper.getNode("jn2");
jn2.on("input", function(msg) {
msg.should.have.property('topic', 'bar');
should.equal(msg.payload, '{"employees":[{"firstName":"John","lastName":"Smith"}]}');
done();
});
var obj = {employees:[{firstName:"John", lastName:"Smith"}]};
jn1.receive({payload:obj,topic: "bar"});
});
});
it('should log an error if asked to parse an invalid json string', function(done) {
var flow = [{id:"jn1",type:"json",wires:[["jn2"]],func:"return msg;"},
{id:"jn2", type:"helper"}];
helper.load(jsonNode, flow, function() {
var jn1 = helper.getNode("jn1");
var jn2 = helper.getNode("jn2");
jn1.on("log", function(msg) {
msg.should.have.property('msg');
should.deepEqual("SyntaxError: Unexpected token o"+ "\nfoo", msg.msg);
done();
});
jn1.receive({payload:'foo',topic: "bar"});
});
});
it('should log an error if asked to parse something thats not json or js', function(done) {
var flow = [{id:"jn1",type:"json",wires:[["jn2"]],func:"return msg;"},
{id:"jn2", type:"helper"}];
helper.load(jsonNode, flow, function() {
var jn1 = helper.getNode("jn1");
var jn2 = helper.getNode("jn2");
jn1.on("log", function(msg) {
msg.should.have.property('msg');
should.deepEqual("dropped: 1", msg.msg);
done();
});
jn1.receive({payload:1,topic: "bar"});
});
});
});
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