mirror of https://github.com/node-red/node-red.git
495 lines
20 KiB
JavaScript
495 lines
20 KiB
JavaScript
/**
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* Copyright JS Foundation and other contributors, http://js.foundation
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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 path = require("path");
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var fs = require('fs-extra');
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var htmlNode = require("nr-test-utils").require("@node-red/nodes/core/parsers/70-HTML.js");
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var helper = require("node-red-node-test-helper");
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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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after(function(done) {
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helper.stopServer(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 if asked to by msg.select', 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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try {
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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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} catch(err) {
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done(err)
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}
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});
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// include 'body' in the select to verify we're in document mode
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// for the parser. See https://github.com/node-red/node-red/issues/3079
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n1.receive({payload:data,topic:"bar",select:"body h1"});
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});
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});
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});
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it('should retrieve header contents if asked to by msg.select - alternative in property', function(done) {
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fs.readFile(file, 'utf8', function(err, data) {
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var flow = [{id:"n1",type:"html",property:"foo",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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try {
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msg.should.have.property('topic', 'bar');
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msg.foo[0].should.equal('This is a test page for node 70-HTML');
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done();
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} catch(err) {
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done(err)
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}
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});
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n1.receive({foo:data,topic:"bar",select:"h1"});
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});
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});
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});
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it('should retrieve header contents if asked to by msg.select - alternative in and out properties', function(done) {
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fs.readFile(file, 'utf8', function(err, data) {
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var flow = [{id:"n1",type:"html",property:"foo",outproperty:"bar",tag:"h1",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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try {
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msg.should.have.property('topic', 'bar');
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msg.bar[0].should.equal('This is a test page for node 70-HTML');
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done();
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} catch(err) {
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done(err)
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}
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});
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n1.receive({foo:data,topic:"bar"});
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});
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});
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});
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it('should emit an empty array if no matching elements', 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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try {
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msg.should.have.property('topic', 'bar');
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msg.should.have.property('payload');
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msg.payload.should.be.empty;
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done();
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} catch(err) {
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done(err)
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}
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});
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n1.receive({payload:data,topic:"bar",select:"h4"});
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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"]],ret:"text",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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try {
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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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} catch(err) {
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done(err)
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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 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"]],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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try {
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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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} catch(err) {
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done(err)
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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 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"]],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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try {
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msg.should.have.property('topic', 'bar');
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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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} catch(err) {
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done(err)
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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 fix up a unclosed tag', 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"]],tag:"span"},
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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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try {
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msg.should.have.property('topic', 'bar');
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should.equal(msg.payload, '<img src="foo.png"/>');
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done();
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} catch(err) {
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done(err)
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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 an attribute from a tag', 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"]],ret:"attr",tag:"span img"},
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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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try {
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msg.should.have.property('payload');
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msg.payload[0].should.have.property('src','foo.png');
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msg.should.have.property('topic', 'bar');
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done();
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} catch(err) {
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done(err)
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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 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"]],tag:"p"},
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{id:"n2", type:"helper"}];
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helper.load(htmlNode, flow, function() {
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try {
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var n1 = helper.getNode("n1");
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var n2 = helper.getNode("n2");
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n1.receive({payload:null,topic: "bar"});
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setTimeout(function() {
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try {
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helper.log().called.should.be.true();
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var logEvents = helper.log().args.filter(function(evt) {
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return evt[0].type == "html";
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});
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logEvents.should.have.length(1);
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// Each logEvent is the array of args passed to the function.
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logEvents[0][0].should.have.a.property('msg');
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logEvents[0][0].should.have.a.property('level',helper.log().ERROR);
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done();
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} catch(err) { done(err) }
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},50);
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} catch(err) {
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done(err);
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}
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});
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});
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});
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it('should pass through if payload empty', 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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try {
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msg.should.have.property('topic', 'bar');
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msg.should.not.have.property('payload');
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done();
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} catch(err) {
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done(err)
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}
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});
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n1.receive({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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var parts_id = undefined;
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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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parts_id = undefined;
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});
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function check_parts(msg, index, count) {
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msg.should.have.property('parts');
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msg.parts.should.have.property('id');
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if(parts_id === undefined) {
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parts_id = msg.parts.id;
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}
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else {
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msg.parts.should.have.property('id', parts_id);
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}
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msg.parts.should.have.property('index', index);
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msg.parts.should.have.property('count', count);
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msg.parts.should.have.property('type', 'string');
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msg.parts.should.have.property('ch', '');
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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"]],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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try {
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cnt++;
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msg.should.have.property('topic', 'bar');
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check_parts(msg, cnt -1, 2);
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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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} catch(err) {
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done(err)
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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 html as default with output as multiple msgs - alternative property', function(done) {
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fs.readFile(file, 'utf8', function(err, data) {
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var flow = [{id:"n1",type:"html",property:"foo",wires:[["n2"]],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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try {
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cnt++;
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msg.should.have.property('topic', 'bar');
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check_parts(msg, cnt -1, 2);
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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.foo.indexOf("<li>Apple</li>").should.be.above(-1);
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msg.foo.indexOf("<li>Pear</li>").should.be.above(-1);
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} else if (cnt === 2) {
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msg.foo.indexOf("<li>Potato</li>").should.be.above(-1);
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msg.foo.indexOf("<li>Parsnip</li>").should.be.above(-1);
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done();
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}
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} catch(err) {
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done(err)
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}
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});
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n1.receive({foo: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"]],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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try {
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cnt++;
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msg.should.have.property('topic', 'bar');
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check_parts(msg, cnt -1, 2);
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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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} catch(err) {
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done(err)
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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 an attribute from a tag', 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"]],ret:"attr",tag:"span img",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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try {
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msg.should.have.property('payload');
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msg.payload.should.have.property('src','foo.png');
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msg.should.have.property('topic', 'bar');
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check_parts(msg, 0, 1);
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cnt = 2; // frig the answer as only one img tag
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done();
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} catch(err) {
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done(err)
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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 not reuse message', 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"]],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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var prev_msg = undefined;
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n2.on("input", function(msg) {
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try {
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cnt++;
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if (prev_msg == undefined) {
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prev_msg = msg;
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}
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else {
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msg.should.not.equal(prev_msg);
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}
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if (cnt == 2) {
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done();
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}
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} catch(err) {
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done(err)
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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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