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node-red/test/red/api/ui_spec.js

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/**
* 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 request = require("supertest");
var express = require("express");
var fs = require("fs");
var path = require("path");
var EventEmitter = require('events').EventEmitter;
var events = new EventEmitter();
var ui = require("../../../red/api/ui");
describe("ui api", function() {
var app;
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before(function() {
ui.init({events:events});
});
describe("slash handler", function() {
before(function() {
app = express();
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app.get("/foo",ui.ensureSlash,function(req,res) { res.sendStatus(200);});
});
it('redirects if the path does not end in a slash',function(done) {
request(app)
.get('/foo')
.expect(301,done);
});
it('redirects if the path, with query string, does not end in a slash',function(done) {
request(app)
.get('/foo?abc=def')
.expect(301)
.end(function(err,res) {
if (err) {
return done(err);
}
res.header['location'].should.equal("/foo/?abc=def");
done();
});
});
it('does not redirect if the path ends in a slash',function(done) {
request(app)
.get('/foo/')
.expect(200,done);
});
});
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describe("icon handler", function() {
before(function() {
app = express();
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app.get("/icons/:module/:icon",ui.icon);
});
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function binaryParser(res, callback) {
res.setEncoding('binary');
res.data = '';
res.on('data', function (chunk) {
res.data += chunk;
});
res.on('end', function () {
callback(null, new Buffer(res.data, 'binary'));
});
}
function compareBuffers(b1,b2) {
b1.length.should.equal(b2.length);
for (var i=0;i<b1.length;i++) {
b1[i].should.equal(b2[i]);
}
}
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it('returns the default icon when getting an unknown icon', function(done) {
var defaultIcon = fs.readFileSync(path.resolve(__dirname+'/../../../public/icons/arrow-in.png'));
request(app)
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.get("/icons/random-module/youwonthaveme.png")
.expect("Content-Type", /image\/png/)
.expect(200)
.parse(binaryParser)
.end(function(err,res) {
if (err){
return done(err);
}
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Buffer.isBuffer(res.body).should.be.true();
compareBuffers(res.body,defaultIcon);
done();
});
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});
it('returns a known icon', function(done) {
var injectIcon = fs.readFileSync(path.resolve(__dirname+'/../../../public/icons/inject.png'));
request(app)
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.get("/icons/node-red/inject.png")
.expect("Content-Type", /image\/png/)
.expect(200)
.parse(binaryParser)
.end(function(err, res){
if (err){
return done(err);
}
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Buffer.isBuffer(res.body).should.be.true();
compareBuffers(res.body,injectIcon);
done();
});
});
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it('returns a registered icon' , function(done) {
var testIcon = fs.readFileSync(path.resolve(__dirname+'/../../resources/icons/test_icon.png'));
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events.emit("node-icon-dir",{name:"test-module", path: path.resolve(__dirname+'/../../resources/icons')});
request(app)
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.get("/icons/test-module/test_icon.png")
.expect("Content-Type", /image\/png/)
.expect(200)
.parse(binaryParser)
.end(function(err, res){
if (err){
return done(err);
}
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Buffer.isBuffer(res.body).should.be.true();
compareBuffers(res.body,testIcon);
done();
});
});
});
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describe("editor ui handler", function() {
before(function() {
app = express();
app.use("/",ui.editor);
});
it('serves the editor', function(done) {
request(app)
.get("/")
.expect(200)
.end(function(err,res) {
if (err) {
return done(err);
}
// Index page should probably mention Node-RED somewhere
res.text.indexOf("Node-RED").should.not.eql(-1);
done();
});
});
});
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describe("editor ui resource handler", function() {
before(function() {
app = express();
app.use("/",ui.editorResources);
});
it('serves the editor resources', function(done) {
request(app)
.get("/favicon.ico")
.expect(200)
.end(function(err,res) {
if (err) {
return done(err);
}
done();
});
});
});
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});