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Tests for HTML node
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hbeeken
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test/nodes/core/parsers/70-HTML_spec.js
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211
test/nodes/core/parsers/70-HTML_spec.js
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/**
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* Copyright 2014 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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var should = require("should");
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var sinon = require("sinon");
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var path = require("path");
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var fs = require('fs-extra');
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var htmlNode = require("../../../../nodes/core/parsers/70-HTML.js");
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var helper = require("../../helper.js");
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describe('html node', function() {
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var resourcesDir = __dirname+ path.sep + ".." + path.sep + ".." + path.sep + ".." + path.sep + "resources" + path.sep;
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var file = path.join(resourcesDir, "70-HTML-test-file.html");
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before(function(done) {
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helper.startServer(done);
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});
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beforeEach(function() {
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fs.existsSync(file).should.be.true;
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});
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afterEach(function() {
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helper.unload();
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});
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it('should be loaded', function(done) {
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var flow = [{id:"htmlNode1", type:"html", name: "htmlNode" }];
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helper.load(htmlNode, flow, function() {
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var htmlNode1 = helper.getNode("htmlNode1");
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htmlNode1.should.have.property('name', 'htmlNode');
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done();
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});
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});
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it('should retrieve header contents as default', function(done) {
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fs.readFile(file, 'utf8', function(err, data) {
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var flow = [{id:"n1",type:"html",wires:[["n2"]],func:"return msg;"},
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{id:"n2", type:"helper"}];
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helper.load(htmlNode, flow, function() {
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var n1 = helper.getNode("n1");
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var n2 = helper.getNode("n2");
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n2.on("input", function(msg) {
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msg.should.have.property('topic', 'bar');
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should.equal(msg.payload, 'This is a test page for node 70-HTML');
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done();
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});
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n1.receive({payload:data,topic: "bar"});
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});
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});
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});
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it('should retrieve paragraph contents when specified', function(done) {
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fs.readFile(file, 'utf8', function(err, data) {
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var flow = [{id:"n1",type:"html",wires:[["n2"]],func:"return msg;",tag:"p"},
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{id:"n2", type:"helper"}];
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helper.load(htmlNode, flow, function() {
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var n1 = helper.getNode("n1");
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var n2 = helper.getNode("n2");
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n2.on("input", function(msg) {
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msg.should.have.property('topic', 'bar');
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should.equal(msg.payload, 'There\'s nothing to read here.');
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done();
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});
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n1.receive({payload:data,topic: "bar"});
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});
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});
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});
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it('should retrieve list contents as an array of html as default', function(done) {
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fs.readFile(file, 'utf8', function(err, data) {
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var flow = [{id:"n1",type:"html",wires:[["n2"]],func:"return msg;",tag:"ol"},
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{id:"n2", type:"helper"}];
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helper.load(htmlNode, flow, function() {
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var n1 = helper.getNode("n1");
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var n2 = helper.getNode("n2");
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n2.on("input", function(msg) {
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msg.should.have.property('topic', 'bar');
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msg.payload[0].indexOf("<li>Blue</li>").should.be.above(-1);
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msg.payload[0].indexOf("<li>Red</li>").should.be.above(-1);
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done();
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});
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n1.receive({payload:data,topic: "bar"});
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});
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});
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});
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it('should retrieve list contents as an array of text', function(done) {
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fs.readFile(file, 'utf8', function(err, data) {
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var flow = [{id:"n1",type:"html",wires:[["n2"]],func:"return msg;",tag:"ol",ret:"text"},
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{id:"n2", type:"helper"}];
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helper.load(htmlNode, flow, function() {
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var n1 = helper.getNode("n1");
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var n2 = helper.getNode("n2");
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n2.on("input", function(msg) {
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msg.should.have.property('topic', 'bar');
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msg.payload.should.be.instanceof(Array).and.have.lengthOf(1);
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msg.payload[0].indexOf("Blue").should.be.above(-1);
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msg.payload[0].indexOf("Red").should.be.above(-1);
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done();
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});
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n1.receive({payload:data,topic: "bar"});
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});
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});
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});
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it('should log on error', function(done) {
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fs.readFile(file,function(err, data) {
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var flow = [{id:"n1",type:"html",wires:[["n2"]],func:"return msg;",tag:"p"},
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{id:"n2", type:"helper"}];
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helper.load(htmlNode, flow, function() {
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var n1 = helper.getNode("n1");
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var n2 = helper.getNode("n2");
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n1.on("log", function(msg) {
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msg.should.have.property('msg');
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msg.msg.indexOf("Error:").should.be.above(-1);
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msg.msg.should.startWith("Error:");
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done();
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});
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n1.receive({payload:data,topic: "bar"});
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});
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});
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});
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describe('multiple messages', function(){
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var cnt = 0;
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afterEach(function() {
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cnt.should.be.exactly(2);
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cnt = 0;
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});
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it('should retrieve list contents as html as default with output as multiple msgs ', function(done) {
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fs.readFile(file, 'utf8', function(err, data) {
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var flow = [{id:"n1",type:"html",wires:[["n2"]],func:"return msg;",tag:"ul",as:"multi"},
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{id:"n2", type:"helper"}];
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helper.load(htmlNode, flow, function() {
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var n1 = helper.getNode("n1");
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var n2 = helper.getNode("n2");
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n2.on("input", function(msg) {
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cnt++;
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msg.should.have.property('topic', 'bar');
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if (cnt !== 1 && cnt !== 2) {
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return false;
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}
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if (cnt === 1) {
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msg.payload.indexOf("<li>Apple</li>").should.be.above(-1);
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msg.payload.indexOf("<li>Pear</li>").should.be.above(-1);
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} else if (cnt === 2) {
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msg.payload.indexOf("<li>Potato</li>").should.be.above(-1);
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msg.payload.indexOf("<li>Parsnip</li>").should.be.above(-1);
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done();
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}
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});
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n1.receive({payload:data,topic: "bar"});
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});
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});
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});
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it('should retrieve list contents as text with output as multiple msgs ', function(done) {
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fs.readFile(file, 'utf8', function(err, data) {
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var flow = [{id:"n1",type:"html",wires:[["n2"]],func:"return msg;",tag:"ul",ret:"text",as:"multi"},
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{id:"n2", type:"helper"}];
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helper.load(htmlNode, flow, function() {
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var n1 = helper.getNode("n1");
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var n2 = helper.getNode("n2");
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n2.on("input", function(msg) {
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cnt++;
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msg.should.have.property('topic', 'bar');
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if (cnt !== 1 && cnt !== 2) {
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return false;
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}
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if (cnt === 1) {
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msg.payload.indexOf("Apple").should.be.above(-1);
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msg.payload.indexOf("Pear").should.be.above(-1);
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} else if (cnt === 2) {
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msg.payload.indexOf("Potato").should.be.above(-1);
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msg.payload.indexOf("Parsnip").should.be.above(-1);
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done();
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}
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});
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n1.receive({payload:data,topic: "bar"});
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});
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});
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});
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});
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});
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25
test/resources/70-HTML-test-file.html
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25
test/resources/70-HTML-test-file.html
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<!DOCTYPE html>
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<html>
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<body>
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<h1>This is a test page for node 70-HTML</h1>
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<p>There's nothing to read here.</p>
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<ol id="colours">
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<li>Blue</li>
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<li>Red</li>
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</ol>
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<ul id="fruits">
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<li>Apple</li>
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<li>Pear</li>
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</ul>
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<ul id="vegetables">
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<li>Potato</li>
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<li>Parsnip</li>
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</ul>
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</body>
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</html>
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