text: /**
   * Copyright JS Foundation and other contributors, http://js.foundation
   *
   * 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 sinon = require("sinon");
  var path = require("path");
  var fs = require('fs-extra');
  
  var htmlNode = require("../../../../nodes/core/parsers/70-HTML.js");
  var helper = require("../../helper.js");
  
  describe('html node', function() {
  
      var resourcesDir = __dirname+ path.sep + ".." + path.sep + ".." + path.sep + ".." + path.sep + "resources" + path.sep;
      var file = path.join(resourcesDir, "70-HTML-test-file.html");
  
      before(function(done) {
          helper.startServer(done);
      });
  
      beforeEach(function() {
          fs.existsSync(file).should.be.true();
      });
  
      afterEach(function() {
          helper.unload();
      });
  
      it('should be loaded', function(done) {
          var flow = [{id:"htmlNode1", type:"html", name: "htmlNode" }];
          helper.load(htmlNode, flow, function() {
              var htmlNode1 = helper.getNode("htmlNode1");
              htmlNode1.should.have.property('name', 'htmlNode');
              done();
          });
      });
  
      it('should retrieve header contents if asked to by msg.select', 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');
                      should.equal(msg.payload, 'This is a test page for node 70-HTML');
                      done();
                  });
                  n1.receive({payload:data,topic:"bar",select:"h1"});
              });
          });
      });
  
      it('should retrieve paragraph contents when specified', function(done) {
          fs.readFile(file, 'utf8', function(err, data) {
              var flow = [{id:"n1",type:"html",wires:[["n2"]],ret:"text",tag:"p"},
                          {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');
                      should.equal(msg.payload, 'There\'s nothing to read here.');
                      done();
                  });
                  n1.receive({payload:data,topic: "bar"});
              });
          });
      });
  
      it('should retrieve list contents as an array of html as default', function(done) {
          fs.readFile(file, 'utf8', function(err, data) {
              var flow = [{id:"n1",type:"html",wires:[["n2"]],tag:"ol"},
                          {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.payload[0].indexOf("<li>Blue</li>").should.be.above(-1);
                      msg.payload[0].indexOf("<li>Red</li>").should.be.above(-1);
                      done();
                  });
                  n1.receive({payload:data,topic: "bar"});
              });
          });
      });
  
      it('should retrieve list contents as an array of text', function(done) {
          fs.readFile(file, 'utf8', function(err, data) {
              var flow = [{id:"n1",type:"html",wires:[["n2"]],tag:"ol",ret:"text"},
                          {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.payload[0].indexOf("Blue").should.be.above(-1);
                      msg.payload[0].indexOf("Red").should.be.above(-1);
                      done();
  
                  });
                  n1.receive({payload:data,topic: "bar"});
              });
          });
      });
  
      it('should fix up a unclosed tag', function(done) {
          fs.readFile(file, 'utf8', function(err, data) {
              var flow = [{id:"n1",type:"html",wires:[["n2"]],tag:"span"},
                          {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');
                      should.equal(msg.payload, '<img src="foo.png"/>');
                      done();
                  });
                  n1.receive({payload:data,topic: "bar"});
              });
          });
      });
  
      it('should retrive an attribute from a tag', function(done) {
          fs.readFile(file, 'utf8', function(err, data) {
              var flow = [{id:"n1",type:"html",wires:[["n2"]],ret:"attr",tag:"span img"},
                          {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('payload');
                      msg.payload[0].should.have.property('src','foo.png');
                      msg.should.have.property('topic', 'bar');
                      done();
                  });
                  n1.receive({payload:data,topic: "bar"});
              });
          });
      });
  
      it('should log on error', function(done) {
          fs.readFile(file,function(err, data) {
              var flow = [{id:"n1",type:"html",wires:[["n2"]],tag:"p"},
                          {id:"n2", type:"helper"}];
  
              helper.load(htmlNode, flow, function() {
                  try {
                      var n1 = helper.getNode("n1");
                      var n2 = helper.getNode("n2");
                      n1.receive({payload:null,topic: "bar"});
                      helper.log().called.should.be.true();
                      var logEvents = helper.log().args.filter(function(evt) {
                          return evt[0].type == "html";
                      });
                      logEvents.should.have.length(1);
                      // Each logEvent is the array of args passed to the function.
                      logEvents[0][0].should.have.a.property('msg');
                      logEvents[0][0].should.have.a.property('level',helper.log().ERROR);
  
                      done();
                  } catch(err) {
                      done(err);
                  }
              });
          });
      });
  
      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;
  
          afterEach(function() {
              cnt.should.be.exactly(2);
              cnt = 0;
          });
  
          it('should retrieve list contents as html as default with output as multiple msgs ', function(done) {
              fs.readFile(file, 'utf8', function(err, data) {
                  var flow = [{id:"n1",type:"html",wires:[["n2"]],tag:"ul",as:"multi"},
                              {id:"n2", type:"helper"}];
  
                  helper.load(htmlNode, flow, function() {
                      var n1 = helper.getNode("n1");
                      var n2 = helper.getNode("n2");
                      n2.on("input", function(msg) {
                          cnt++;
                          msg.should.have.property('topic', 'bar');
                          if (cnt !== 1 && cnt !== 2) {
                              return false;
                          }
                          if (cnt === 1) {
                              msg.payload.indexOf("<li>Apple</li>").should.be.above(-1);
                              msg.payload.indexOf("<li>Pear</li>").should.be.above(-1);
                          } else if (cnt === 2) {
                              msg.payload.indexOf("<li>Potato</li>").should.be.above(-1);
                              msg.payload.indexOf("<li>Parsnip</li>").should.be.above(-1);
                              done();
                          }
                      });
                      n1.receive({payload:data,topic: "bar"});
                  });
              });
          });
  
          it('should retrieve list contents as text with output as multiple msgs ', function(done) {
              fs.readFile(file, 'utf8', function(err, data) {
                  var flow = [{id:"n1",type:"html",wires:[["n2"]],tag:"ul",ret:"text",as:"multi"},
                              {id:"n2", type:"helper"}];
  
                  helper.load(htmlNode, flow, function() {
                      var n1 = helper.getNode("n1");
                      var n2 = helper.getNode("n2");
                      n2.on("input", function(msg) {
                          cnt++;
                          msg.should.have.property('topic', 'bar');
                          if (cnt !== 1 && cnt !== 2) {
                              return false;
                          }
                          if (cnt === 1) {
                              msg.payload.indexOf("Apple").should.be.above(-1);
                              msg.payload.indexOf("Pear").should.be.above(-1);
                          } else if (cnt === 2) {
                              msg.payload.indexOf("Potato").should.be.above(-1);
                              msg.payload.indexOf("Parsnip").should.be.above(-1);
                              done();
                          }
                      });
                      n1.receive({payload:data,topic: "bar"});
                  });
              });
          });
  
          it('should retrieve an attribute from a tag', function(done) {
              fs.readFile(file, 'utf8', function(err, data) {
                  var flow = [{id:"n1",type:"html",wires:[["n2"]],ret:"attr",tag:"span img",as:"multi"},
                              {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('payload');
                          msg.payload.should.have.property('src','foo.png');
                          msg.should.have.property('topic', 'bar');
                          cnt = 2;  // frig the answer as only one img tag
                          done();
                      });
                      n1.receive({payload:data,topic: "bar"});
                  });
              });
          });
  
      });
  
  });
  