add tests for markdown node

package.json

@@ -40,6 +40,7 @@
         "grunt-simple-mocha": "^0.4.1",
         "imap": "^0.8.19",
         "mailparser-mit": "^1.0.0",
+        "markdown-it": "^8.4.2",
         "mocha": "^6.1.4",
         "msgpack-lite": "^0.1.26",
         "multilang-sentiment": "^1.2.0",

parsers/markdown/70-markdown.html

@@ -8,8 +8,12 @@
 
 <script type="text/x-red" data-help-name="markdown">
     <p>A function that converts the <code>msg.payload</code> in markdown format to html.</p>
-    <p>If the input is a string it tries to convert it to html.</p>
+    <p>If the input is a string it converts it to html.</p>
     <p>All other message types are ignored.</p>
+    <p>Uses the markdown-it library - You can see a demo
+        <a href="https://markdown-it.github.io/">here</a>.</p>
+    <p>It is configured with html, linkify and typographer options turned on.</p>
+
 </script>
 
 <script type="text/javascript">

parsers/markdown/70-markdown.js

@@ -2,7 +2,7 @@
 module.exports = function(RED) {
     "use strict";
     var markdownNode = function(n) {
-        var md = require('markdown-it')({html:true, linkify:true});
+        var md = require('markdown-it')({html:true, linkify:true, typographer:true});
         RED.nodes.createNode(this,n);
         var node = this;
         //<div id="nr-markdown" style="font-family:helvetica neue,arial,helvetica,sans-serif; margin:12px">';

parsers/markdown/README.md

@@ -6,7 +6,7 @@ A <a href="http://nodered.org" target="_new">Node-RED</a> node to convert a mark
 Install
 -------
 
-Run the following command in your Node-RED user directory - typically `~/.node-red`
+Either use the `Node-RED Menu - Manage Palette - Install`, or run the following command in your Node-RED user directory - typically `~/.node-red`
 
     npm install node-red-node-markdown
 
@@ -14,3 +14,7 @@ Usage
 -----
 
 If the input is a string it tries to convert it into an html string.
+
+Uses the markdown-it library - You can see a demo <a href="https://markdown-it.github.io/" target="_new">here</a>.
+
+It is configured with html, linkify and typographer options turned on.

parsers/markdown/package.json

@@ -1,6 +1,6 @@
 {
     "name"          : "node-red-node-markdown",
-    "version"       : "0.0.1",
+    "version"       : "0.1.0",
     "description"   : "A Node-RED node to convert a markdown string to html.",
     "dependencies"  : {
         "markdown-it": "^8.4.2"

test/parsers/markdown/70-markdown_spec.js

@@ -0,0 +1,109 @@
+
+var should = require("should");
+var helper = require("node-red-node-test-helper");
+var testNode = require('../../../parsers/markdown/70-markdown.js');
+
+describe('markdown node', function() {
+    "use strict";
+
+    beforeEach(function(done) {
+        helper.startServer(done);
+    });
+
+    afterEach(function(done) {
+        helper.unload().then(function() {
+            helper.stopServer(done);
+        });
+    });
+
+    it("should be loaded with correct defaults", function(done) {
+        var flow = [{"id":"n1", "type":"markdown", "name":"markdown1", "wires":[[]]}];
+        helper.load(testNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            n1.should.have.property("name", "markdown1");
+            done();
+        });
+    });
+
+    var buf;
+
+    it('should convert a string to html', function(done) {
+        var flow = [{"id":"n1", "type":"markdown", wires:[["n2"]] },
+            {id:"n2", type:"helper"} ];
+        helper.load(testNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            n2.on("input", function(msg) {
+                msg.should.have.a.property("payload");
+                msg.payload.should.be.a.String;
+                msg.payload.should.equal('<p><strong>BOLD</strong> <em>italic</em></p>\n<hr>\n<p>™\n<code>code</code></p>\n');
+                done();
+            });
+            n1.emit("input", {payload:"**BOLD** *italic*\n***\n\n(TM)\n`code`"});
+        });
+    });
+
+    it('should ignore other types - object', function(done) {
+        var flow = [{"id":"n1", "type":"markdown", wires:[["n2"]] },
+            {id:"n2", type:"helper"} ];
+        helper.load(testNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            n2.on("input", function(msg) {
+                msg.should.have.a.property("payload");
+                msg.payload.should.be.a.Object;
+                msg.payload.a.should.equal("object");
+                done();
+            });
+            n1.emit("input", {payload:{a:"object"}});
+        });
+    });
+
+    it('should ignore other types - number', function(done) {
+        var flow = [{"id":"n1", "type":"markdown", wires:[["n2"]] },
+            {id:"n2", type:"helper"} ];
+        helper.load(testNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            n2.on("input", function(msg) {
+                msg.should.have.a.property("payload");
+                msg.payload.should.be.a.number;
+                msg.payload.should.equal(1);
+                done();
+            });
+            n1.emit("input", {payload:1});
+        });
+    });
+
+    it('should ignore other types - boolean', function(done) {
+        var flow = [{"id":"n1", "type":"markdown", wires:[["n2"]] },
+            {id:"n2", type:"helper"} ];
+        helper.load(testNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            n2.on("input", function(msg) {
+                msg.should.have.a.property("payload");
+                msg.payload.should.be.a.boolean;
+                msg.payload.should.equal(true);
+                done();
+            });
+            n1.emit("input", {payload:true});
+        });
+    });
+
+    it('should ignore other types - array', function(done) {
+        var flow = [{"id":"n1", "type":"markdown", wires:[["n2"]] },
+            {id:"n2", type:"helper"} ];
+        helper.load(testNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            n2.on("input", function(msg) {
+                msg.should.have.a.property("payload");
+                msg.payload.should.be.an.object;
+                done();
+            });
+            n1.emit("input", {payload:[1,2,"a","b"]});
+        });
+    });
+
+});