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

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/**
* Copyright 2014 IBM Corp.
*
* 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 settings = require("../../../red/settings");
var events = require("../../../red/events");
var ui = require("../../../red/api/ui");
describe("ui api", function() {
var app;
describe("slash handler", function() {
before(function() {
app = express();
app.get("/foo",ui.ensureSlash,function(req,res) { res.send(200);});
});
it('redirects if the path does not end in a slash',function(done) {
request(app)
.get('/foo')
.expect(301,done);
});
it('does not redirect if the path ends in a slash',function(done) {
request(app)
.get('/foo/')
.expect(200,done);
});
});
describe("icon handler", function() {
before(function() {
app = express();
app.get("/icons/:icon",ui.icon);
});
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]);
}
}
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)
.get("/icons/youwonthaveme.png")
.expect("Content-Type", /image\/png/)
.expect(200)
.parse(binaryParser)
.end(function(err,res) {
if (err){
return done(err);
}
Buffer.isBuffer(res.body).should.be.true;
compareBuffers(res.body,defaultIcon);
done();
});
});
it('returns a known icon', function(done) {
var injectIcon = fs.readFileSync(path.resolve(__dirname+'/../../../public/icons/inject.png'));
request(app)
.get("/icons/inject.png")
.expect("Content-Type", /image\/png/)
.expect(200)
.parse(binaryParser)
.end(function(err, res){
if (err){
return done(err);
}
Buffer.isBuffer(res.body).should.be.true;
compareBuffers(res.body,injectIcon);
done();
});
});
it('returns a registered icon' , function(done) {
var testIcon = fs.readFileSync(path.resolve(__dirname+'/../../resources/icons/test_icon.png'));
events.emit("node-icon-dir", path.resolve(__dirname+'/../../resources/icons'));
request(app)
.get("/icons/test_icon.png")
.expect("Content-Type", /image\/png/)
.expect(200)
.parse(binaryParser)
.end(function(err, res){
if (err){
return done(err);
}
Buffer.isBuffer(res.body).should.be.true;
compareBuffers(res.body,testIcon);
done();
});
});
});
describe("settings handler", function() {
before(function() {
var userSettings = {
foo: 123,
httpNodeRoot: "testHttpNodeRoot",
version: "testVersion"
}
settings.init(userSettings);
app = express();
app.get("/settings",ui.settings);
//app.use("/",ui.editor);
});
after(function() {
settings.reset();
});
it('returns the filtered settings', function(done) {
request(app)
.get("/settings")
.expect(200)
.end(function(err,res) {
if (err) {
return done(err);
}
res.body.should.have.property("httpNodeRoot","testHttpNodeRoot");
res.body.should.have.property("version","testVersion");
res.body.should.not.have.property("foo",123);
done();
});
});
});
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();
});
});
});
});