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node-red/test/red/runtime/nodes/index_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.
**/
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var should = require("should");
var fs = require('fs-extra');
var path = require('path');
var when = require("when");
var sinon = require('sinon');
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var index = require("../../../../red/runtime/nodes/index");
var flows = require("../../../../red/runtime/nodes/flows");
var registry = require("../../../../red/runtime/nodes/registry");
describe("red/nodes/index", function() {
before(function() {
sinon.stub(flows,"startFlows");
process.env.NODE_RED_HOME = path.resolve(path.join(__dirname,"..","..","..",".."))
});
after(function() {
flows.startFlows.restore();
delete process.env.NODE_RED_HOME;
});
afterEach(function() {
index.clearRegistry();
});
var testFlows = [{"type":"test","id":"tab1","label":"Sheet 1"}];
var storage = {
getFlows: function() {
return when(testFlows);
},
getCredentials: function() {
return when({"tab1":{"b":1,"c":2}});
},
saveFlows: function(conf) {
should.deepEqual(testFlows, conf);
return when();
},
saveCredentials: function(creds) {
return when(true);
}
};
var settings = {
available: function() { return false }
};
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var runtime = {
settings: settings,
storage: storage
};
function TestNode(n) {
index.createNode(this, n);
var node = this;
this.on("log", function() {
// do nothing
});
}
it('nodes are initialised with credentials',function(done) {
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index.init(runtime);
index.registerType('test', TestNode);
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index.loadFlows().then(function() {
var testnode = new TestNode({id:'tab1',type:'test',name:'barney'});
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testnode.credentials.should.have.property('b',1);
testnode.credentials.should.have.property('c',2);
done();
}).otherwise(function(err) {
done(err);
});
});
it('flows should be initialised',function(done) {
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index.init(runtime);
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index.loadFlows().then(function() {
should.deepEqual(testFlows, index.getFlows());
done();
}).otherwise(function(err) {
done(err);
});
});
describe("registerType should register credentials definition", function() {
var http = require('http');
var express = require('express');
var app = express();
var runtime = require("../../../../red/runtime");
var credentials = require("../../../../red/runtime/nodes/credentials");
var localfilesystem = require("../../../../red/runtime/storage/localfilesystem");
var RED = require("../../../../red/red.js");
var userDir = path.join(__dirname,".testUserHome");
before(function(done) {
fs.remove(userDir,function(err) {
fs.mkdir(userDir,function() {
sinon.stub(index, 'load', function() {
return when.promise(function(resolve,reject){
resolve([]);
});
});
sinon.stub(localfilesystem, 'getCredentials', function() {
return when.promise(function(resolve,reject) {
resolve({"tab1":{"b":1,"c":2}});
});
}) ;
RED.init(http.createServer(function(req,res){app(req,res)}),
{userDir: userDir});
runtime.start().then(function () {
done();
});
});
});
});
after(function(done) {
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fs.remove(userDir,function() {;
runtime.stop().then(function() {
index.load.restore();
localfilesystem.getCredentials.restore();
done();
});
});
});
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it(': definition defined',function() {
index.registerType('test', TestNode, {
credentials: {
foo: {type:"test"}
}
});
var testnode = new TestNode({id:'tab1',type:'test',name:'barney', '_alias':'tab1'});
index.getCredentialDefinition("test").should.have.property('foo');
});
});
describe('allows nodes to be added/removed/enabled/disabled from the registry', function() {
var randomNodeInfo = {id:"5678",types:["random"]};
beforeEach(function() {
sinon.stub(registry,"getNodeInfo",function(id) {
if (id == "test") {
return {id:"1234",types:["test"]};
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} else if (id == "doesnotexist") {
return null;
} else {
return randomNodeInfo;
}
});
sinon.stub(registry,"disableNode",function(id) {
return randomNodeInfo;
});
});
afterEach(function() {
registry.getNodeInfo.restore();
registry.disableNode.restore();
});
it(': allows an unused node type to be disabled',function(done) {
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index.init(runtime);
index.registerType('test', TestNode);
index.loadFlows().then(function() {
var info = index.disableNode("5678");
registry.disableNode.calledOnce.should.be.true;
registry.disableNode.calledWith("5678").should.be.true;
info.should.eql(randomNodeInfo);
done();
}).otherwise(function(err) {
done(err);
});
});
it(': prevents disabling a node type that is in use',function(done) {
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index.init(runtime);
index.registerType('test', TestNode);
index.loadFlows().then(function() {
/*jshint immed: false */
(function() {
index.disabledNode("test");
}).should.throw();
done();
}).otherwise(function(err) {
done(err);
});
});
it(': prevents disabling a node type that is unknown',function(done) {
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index.init(runtime);
index.registerType('test', TestNode);
index.loadFlows().then(function() {
/*jshint immed: false */
(function() {
index.disableNode("doesnotexist");
}).should.throw();
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done();
}).otherwise(function(err) {
done(err);
});
});
});
describe('allows modules to be removed from the registry', function() {
var registry = require("../../../../red/runtime/nodes/registry");
var randomNodeInfo = {id:"5678",types:["random"]};
var randomModuleInfo = {
name:"random",
nodes: [randomNodeInfo]
};
before(function() {
sinon.stub(registry,"getNodeInfo",function(id) {
if (id == "node-red/foo") {
return {id:"1234",types:["test"]};
} else if (id == "doesnotexist") {
return null;
} else {
return randomNodeInfo;
}
});
sinon.stub(registry,"getModuleInfo",function(module) {
if (module == "node-red") {
return {nodes:[{name:"foo"}]};
} else if (module == "doesnotexist") {
return null;
} else {
return randomModuleInfo;
}
});
sinon.stub(registry,"removeModule",function(id) {
return randomModuleInfo;
});
});
after(function() {
registry.getNodeInfo.restore();
registry.getModuleInfo.restore();
registry.removeModule.restore();
});
it(': prevents removing a module that is in use',function(done) {
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index.init(runtime);
index.registerType('test', TestNode);
index.loadFlows().then(function() {
/*jshint immed: false */
(function() {
index.removeModule("node-red");
}).should.throw();
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done();
}).otherwise(function(err) {
done(err);
});
});
it(': prevents removing a module that is unknown',function(done) {
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index.init(runtime);
index.registerType('test', TestNode);
index.loadFlows().then(function() {
/*jshint immed: false */
(function() {
index.removeModule("doesnotexist");
}).should.throw();
done();
}).otherwise(function(err) {
done(err);
});
});
});
});