Adding test for JSON node

test/nodes/core/parsers/70-JSON_spec.js

@@ -0,0 +1,70 @@
+/**
+ * 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);
+    });
+
+    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 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"});
+        });
+    });
+   
+});