Extra tests for html, xml, json and tail nodes

(and some consistent passing of missing payloads)

nodes/core/parsers/70-HTML.js

@@ -25,6 +25,7 @@ module.exports = function(RED) {
         this.as = n.as || "single";
         var node = this;
         this.on("input", function(msg) {
+            if (msg.hasOwnProperty("payload")) {
                 try {
                     var $ = cheerio.load(msg.payload);
                     var pay = [];
@@ -35,6 +36,7 @@ module.exports = function(RED) {
                             if (node.ret === "text") { pay2 = $(this).text(); }
                             //if (node.ret === "attr") { pay2 = $(this)[0]["attribs"]; }
                             //if (node.ret === "val")  { pay2 = $(this).val(); }
+                            /* istanbul ignore else */
                             if (pay2) {
                                 msg.payload = pay2;
                                 node.send(msg);
@@ -54,6 +56,8 @@ module.exports = function(RED) {
                 } catch (error) {
                     node.error(error.message,msg);
                 }
+            }
+            else { node.send(msg); } // If no payload - just pass it on.
         });
     }
     RED.nodes.registerType("html",CheerioNode);

nodes/core/parsers/70-JSON.js

@@ -31,15 +31,15 @@ module.exports = function(RED) {
                     catch(e) { node.error(e.message,msg); }
                 }
                 else if (typeof msg.payload === "object") {
-                    if (!Buffer.isBuffer(msg.payload) ) {
+                    if ((!Buffer.isBuffer(msg.payload)) && (!util.isArray(msg.payload))) {
-                        if (!util.isArray(msg.payload)) {
                         msg.payload = JSON.stringify(msg.payload);
                         node.send(msg);
                     }
+                    else { node.warn("Dropped: "+msg.payload); }
                 }
+                else { node.warn("Dropped: "+msg.payload); }
             }
-                else { node.warn("dropped: "+msg.payload); }
+            else { node.send(msg); } // If no payload - just pass it on.
-            }
         });
     }
     RED.nodes.registerType("json",JSONNode);

nodes/core/parsers/70-XML.js

@@ -42,6 +42,7 @@ module.exports = function(RED) {
                 }
                 else { node.warn("This node only handles xml strings or js objects."); }
             }
+            else { node.send(msg); } // If no payload - just pass it on.
         });
     }
     RED.nodes.registerType("xml",XMLNode);

nodes/core/storage/28-tail.js

@@ -61,6 +61,7 @@ module.exports = function(RED) {
         });
 
         this.on("close", function() {
+            /* istanbul ignore else */
             if (tail) { tail.kill(); }
         });
     }

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

@@ -150,6 +150,24 @@ describe('html node', function() {
         });
     });
 
+    it('should pass through if payload empty', function(done) {
+        fs.readFile(file, 'utf8', function(err, data) {
+            var flow = [{id:"n1",type:"html",wires:[["n2"]],func:"return msg;"},
+                        {id:"n2", type:"helper"}];
+
+            helper.load(htmlNode, 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.not.have.property('payload');
+                    done();
+                });
+                n1.receive({topic: "bar"});
+            });
+        });
+    });
+
     describe('multiple messages', function(){
         var cnt = 0;
         

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

@@ -62,12 +62,11 @@ describe('JSON node', 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"});
+            jn1.receive({payload:obj});
         });
     });
     
@@ -96,19 +95,47 @@ describe('JSON node', function() {
         var flow = [{id:"jn1",type:"json",wires:[["jn2"]],func:"return msg;"},
                     {id:"jn2", type:"helper"}];
         helper.load(jsonNode, flow, function() {
-            try {
             var jn1 = helper.getNode("jn1");
             var jn2 = helper.getNode("jn2");
-                jn1.receive({payload:1,topic: "bar"});
+            setTimeout(function() {
+                try {
                     var logEvents = helper.log().args.filter(function(evt) {
                         return evt[0].type == "json";
                     });
-                logEvents.should.have.length(1);
+                    //console.log(logEvents);
-                logEvents[0][0].should.have.a.property('msg',"dropped: 1");
+                    logEvents.should.have.length(4);
+                    logEvents[0][0].should.have.a.property('msg');
+                    logEvents[0][0].msg.toString().should.startWith('Dropped: ');
+                    logEvents[1][0].should.have.a.property('msg');
+                    logEvents[1][0].msg.toString().should.startWith('Dropped: ');
+                    logEvents[2][0].should.have.a.property('msg');
+                    logEvents[2][0].msg.toString().should.startWith('Dropped: ');
+                    logEvents[3][0].should.have.a.property('msg');
+                    logEvents[3][0].msg.toString().should.startWith('Dropped: ');
                     done();
                 } catch(err) {
                     done(err);
                 }
+            },150);
+            jn1.receive({payload:true});
+            jn1.receive({payload:1});
+            jn1.receive({payload:["a"]});
+            jn1.receive({payload:new Buffer("a")});
+        });
+    });
+
+    it('should pass straight through if no payload set', 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.should.not.have.property('payload');
+                done();
+            });
+            jn1.receive({topic: "bar"});
         });
     });
 

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

@@ -120,4 +120,19 @@ describe('XML node', function() {
         });
     });
 
+    it('should just pass through if payload is missing', function(done) {
+        var flow = [{id:"n1",type:"xml",wires:[["n2"]],func:"return msg;"},
+                    {id:"n2", type:"helper"}];
+        helper.load(xmlNode, 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.not.have.property('payload');
+                done();
+            });
+            n1.receive({topic: "bar"});
+        });
+    });
+
 });

test/nodes/core/storage/28-tail_spec.js

@@ -18,12 +18,14 @@ var should = require("should");
 var path = require('path');
 var fs = require('fs-extra');
 var mkdirp = require('mkdirp');
+var sinon = require('sinon');
 
 var tailNode = require("../../../../nodes/core/storage/28-tail.js");
 var helper = require("../../helper.js");
 
-describe('TailNode', function() {
+describe('tail Node', function() {
 
+    var wait = 150;
     var resourcesDir = path.join(__dirname,"..","..","..","resources");
     var fileToTail = path.join(resourcesDir,"28-tail-test-file.txt");
 
@@ -48,7 +50,7 @@ describe('TailNode', function() {
         });
     });
 
-    it('tail should tail a file', function(done) {
+    it('should tail a file', function(done) {
         var flow = [{id:"tailNode1", type:"tail", name: "tailNode", "split":true, "filename":fileToTail, "wires":[["helperNode1"]]},
                     {id:"helperNode1", type:"helper", wires:[]}];
         helper.load(tailNode, flow, function() {
@@ -66,11 +68,11 @@ describe('TailNode', function() {
             setTimeout( function() {
                 fs.appendFileSync(fileToTail, "Tail message line 3\n");
                 fs.appendFileSync(fileToTail, "Tail message line 4\n");
-            },100);
+            },wait);
         });
     });
 
-    it('tail should work in non-split mode', function(done) {
+    it('should work in non-split mode', function(done) {
         var flow = [{id:"tailNode1", type:"tail", name: "tailNode", "split":false, "filename":fileToTail, "wires":[["helperNode1"]]},
                     {id:"helperNode1", type:"helper", wires:[]}];
         helper.load(tailNode, flow, function() {
@@ -84,11 +86,11 @@ describe('TailNode', function() {
             });
             setTimeout( function() {
                 fs.appendFileSync(fileToTail, "Tail message line 5\nTail message line 6\n");
-            },150);
+            },wait);
         });
     });
 
-    it('tail should handle a non-existent file', function(done) {
+    it('should handle a non-existent file', function(done) {
         fs.unlinkSync(fileToTail);
         var flow = [{id:"tailNode1", type:"tail", name: "tailNode", "split":true, "filename":fileToTail, "wires":[["helperNode1"]]},
                     {id:"helperNode1", type:"helper", wires:[]}];
@@ -101,10 +103,22 @@ describe('TailNode', function() {
                 done();
             });
             setTimeout( function() {
-                fs.writeFileSync(fileToTail, "Tail message line\n");
+                fs.writeFile(fileToTail, "Tail message line\n");
-            },150);
+            },wait);
         });
     });
+
+    it('should throw an error if run on Windows', function(done) {
+        // Stub os platform so we can make it look like windows
+        var os = require('os');
+        var spy = sinon.stub(os, 'platform', function(arg){ return("windows"); });
+
+        /*jshint immed: false */
+        (function() { tailNode("1234"); }).should.throw();
+        os.platform.restore();
+        done();
+    });
+
     /*
     it('tail should handle file truncation', function(done) {
         var flow = [{id:"tailNode1", type:"tail", name: "tailNode", "split":true, "filename":fileToTail, "wires":[["helperNode1"]]},
@@ -157,7 +171,7 @@ describe('TailNode', function() {
             }
             setTimeout( function() {
                 processAction();
-            },150);
+            },wait);
         });
     });
     */