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node-red/test/red/server_spec.js

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/**
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* Copyright 2014, 2015 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 when = require("when");
var sinon = require("sinon");
var child_process = require('child_process');
var fs = require("fs");
var comms = require("../../red/comms");
var redNodes = require("../../red/nodes");
var api = require("../../red/api");
var server = require("../../red/server");
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var storage = require("../../red/storage");
var settings = require("../../red/settings");
var log = require("../../red/log");
describe("red/server", function() {
var commsMessages = [];
var commsPublish;
beforeEach(function() {
commsMessages = [];
});
before(function() {
commsPublish = sinon.stub(comms,"publish", function(topic,msg,retained) {
commsMessages.push({topic:topic,msg:msg,retained:retained});
});
});
after(function() {
commsPublish.restore();
});
it("initialises components", function() {
var commsInit = sinon.stub(comms,"init",function() {});
var dummyServer = {};
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server.init(dummyServer,{testSettings: true, httpAdminRoot:"/", load:function() { return when.resolve();}});
commsInit.called.should.be.true;
should.exist(server.app);
should.exist(server.nodeApp);
server.server.should.equal(dummyServer);
commsInit.restore();
});
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describe("start",function() {
var commsInit;
var storageInit;
var settingsLoad;
var apiInit;
var logMetric;
var logWarn;
var logInfo;
var logLog;
var redNodesInit;
var redNodesLoad;
var redNodesCleanModuleList;
var redNodesGetNodeList;
var redNodesLoadFlows;
var commsStart;
beforeEach(function() {
commsInit = sinon.stub(comms,"init",function() {});
storageInit = sinon.stub(storage,"init",function(settings) {return when.resolve();});
apiInit = sinon.stub(api,"init",function() {});
logMetric = sinon.stub(log,"metric",function() { return false; });
logWarn = sinon.stub(log,"warn",function() { });
logInfo = sinon.stub(log,"info",function() { });
logLog = sinon.stub(log,"log",function(m) {});
redNodesInit = sinon.stub(redNodes,"init", function() {});
redNodesLoad = sinon.stub(redNodes,"load", function() {return when.resolve()});
redNodesCleanModuleList = sinon.stub(redNodes,"cleanModuleList",function(){});
redNodesLoadFlows = sinon.stub(redNodes,"loadFlows",function() {});
commsStart = sinon.stub(comms,"start",function(){});
});
afterEach(function() {
commsInit.restore();
storageInit.restore();
apiInit.restore();
logMetric.restore();
logWarn.restore();
logInfo.restore();
logLog.restore();
redNodesInit.restore();
redNodesLoad.restore();
redNodesGetNodeList.restore();
redNodesCleanModuleList.restore();
redNodesLoadFlows.restore();
commsStart.restore();
});
it("reports errored/missing modules",function(done) {
redNodesGetNodeList = sinon.stub(redNodes,"getNodeList", function(cb) {
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return [
{ err:"errored",name:"errName" }, // error
{ module:"module",enabled:true,loaded:false,types:["typeA","typeB"]} // missing
].filter(cb);
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});
server.init({},{testSettings: true, httpAdminRoot:"/", load:function() { return when.resolve();}});
server.start().then(function() {
try {
apiInit.calledOnce.should.be.true;
storageInit.calledOnce.should.be.true;
redNodesInit.calledOnce.should.be.true;
redNodesLoad.calledOnce.should.be.true;
commsStart.calledOnce.should.be.true;
redNodesLoadFlows.calledOnce.should.be.true;
logWarn.calledWithMatch("Failed to register 1 node type");
logWarn.calledWithMatch("Missing node modules");
logWarn.calledWithMatch(" - module: typeA, typeB");
redNodesCleanModuleList.calledOnce.should.be.true;
done();
} catch(err) {
done(err);
}
});
});
it("initiates load of missing modules",function(done) {
redNodesGetNodeList = sinon.stub(redNodes,"getNodeList", function(cb) {
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return [
{ err:"errored",name:"errName" }, // error
{ err:"errored",name:"errName" }, // error
{ module:"module",enabled:true,loaded:false,types:["typeA","typeB"]}, // missing
{ module:"node-red",enabled:true,loaded:false,types:["typeC","typeD"]} // missing
].filter(cb);
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});
var serverInstallModule = sinon.stub(server,"installModule",function(name) { return when.resolve();});
server.init({},{testSettings: true, autoInstallModules:true, httpAdminRoot:"/", load:function() { return when.resolve();}});
server.start().then(function() {
try {
apiInit.calledOnce.should.be.true;
logWarn.calledWithMatch("Failed to register 2 node types");
logWarn.calledWithMatch("Missing node modules");
logWarn.calledWithMatch(" - module: typeA, typeB");
logWarn.calledWithMatch(" - node-red: typeC, typeD");
redNodesCleanModuleList.calledOnce.should.be.false;
serverInstallModule.calledOnce.should.be.true;
serverInstallModule.calledWithMatch("module");
done();
} catch(err) {
done(err);
} finally {
serverInstallModule.restore();
}
});
});
it("reports errored modules when verbose is enabled",function(done) {
redNodesGetNodeList = sinon.stub(redNodes,"getNodeList", function(cb) {
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return [
{ err:"errored",name:"errName" } // error
].filter(cb);
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});
server.init({},{testSettings: true, verbose:true, httpAdminRoot:"/", load:function() { return when.resolve();}});
server.start().then(function() {
try {
apiInit.calledOnce.should.be.true;
logWarn.neverCalledWithMatch("Failed to register 1 node type");
logWarn.calledWithMatch("[errName] errored");
done();
} catch(err) {
done(err);
}
});
});
it("reports runtime metrics",function(done) {
var commsStop = sinon.stub(comms,"stop",function() {} );
var stopFlows = sinon.stub(redNodes,"stopFlows",function() {} );
redNodesGetNodeList = sinon.stub(redNodes,"getNodeList", function() {return []});
logMetric.restore();
logMetric = sinon.stub(log,"metric",function() { return true; });
server.init({},{testSettings: true, runtimeMetricInterval:400, httpAdminRoot:"/", load:function() { return when.resolve();}});
server.start().then(function() {
setTimeout(function() {
try {
apiInit.calledOnce.should.be.true;
logLog.args.should.have.lengthOf(3);
logLog.args[0][0].should.have.property("level",log.METRIC);
logLog.args[0][0].should.have.property("event","runtime.memory.rss");
logLog.args[1][0].should.have.property("level",log.METRIC);
logLog.args[1][0].should.have.property("event","runtime.memory.heapTotal");
logLog.args[2][0].should.have.property("level",log.METRIC);
logLog.args[2][0].should.have.property("event","runtime.memory.heapUsed");
done();
} catch(err) {
done(err);
} finally {
server.stop();
commsStop.restore();
stopFlows.restore();
}
},500);
});
});
it("doesn't init api if httpAdminRoot set to false",function(done) {
redNodesGetNodeList = sinon.stub(redNodes,"getNodeList", function() {return []});
server.init({},{testSettings: true, httpAdminRoot:false, load:function() { return when.resolve();}});
server.start().then(function() {
setTimeout(function() {
try {
apiInit.calledOnce.should.be.false;
done();
} catch(err) {
done(err);
}
},500);
});
});
});
it("stops components", function() {
var commsStop = sinon.stub(comms,"stop",function() {} );
var stopFlows = sinon.stub(redNodes,"stopFlows",function() {} );
server.stop();
commsStop.called.should.be.true;
stopFlows.called.should.be.true;
commsStop.restore();
stopFlows.restore();
});
it("reports added modules", function() {
var nodes = {nodes:[
{types:["a"]},
{module:"foo",types:["b"]},
{types:["c"],err:"error"}
]};
var result = server.reportAddedModules(nodes);
result.should.equal(nodes);
commsMessages.should.have.length(1);
commsMessages[0].topic.should.equal("node/added");
commsMessages[0].msg.should.eql(nodes.nodes);
});
it("reports removed modules", function() {
var nodes = [
{types:["a"]},
{module:"foo",types:["b"]},
{types:["c"],err:"error"}
];
var result = server.reportRemovedModules(nodes);
result.should.equal(nodes);
commsMessages.should.have.length(1);
commsMessages[0].topic.should.equal("node/removed");
commsMessages[0].msg.should.eql(nodes);
});
describe("installs module", function() {
it("rejects invalid module names", function(done) {
var promises = [];
promises.push(server.installModule("this_wont_exist "));
promises.push(server.installModule("this_wont_exist;no_it_really_wont"));
when.settle(promises).then(function(results) {
results[0].state.should.be.eql("rejected");
results[1].state.should.be.eql("rejected");
done();
});
});
it("rejects when npm returns a 404", function(done) {
var exec = sinon.stub(child_process,"exec",function(cmd,opt,cb) {
cb(new Error(),""," 404 this_wont_exist");
});
server.installModule("this_wont_exist").otherwise(function(err) {
err.code.should.be.eql(404);
done();
}).finally(function() {
exec.restore();
});
});
it("rejects with generic error", function(done) {
var exec = sinon.stub(child_process,"exec",function(cmd,opt,cb) {
cb(new Error("test_error"),"","");
});
server.installModule("this_wont_exist").then(function() {
done(new Error("Unexpected success"));
}).otherwise(function(err) {
done();
}).finally(function() {
exec.restore();
});
});
it("succeeds when module is found", function(done) {
var nodeInfo = {nodes:{module:"foo",types:["a"]}};
var exec = sinon.stub(child_process,"exec",function(cmd,opt,cb) {
cb(null,"","");
});
var addModule = sinon.stub(redNodes,"addModule",function(md) {
return when.resolve(nodeInfo);
});
server.installModule("this_wont_exist").then(function(info) {
info.should.eql(nodeInfo);
commsMessages.should.have.length(1);
commsMessages[0].topic.should.equal("node/added");
commsMessages[0].msg.should.eql(nodeInfo.nodes);
done();
}).otherwise(function(err) {
done(err);
}).finally(function() {
exec.restore();
addModule.restore();
});
});
});
describe("uninstalls module", function() {
it("rejects invalid module names", function(done) {
var promises = [];
promises.push(server.uninstallModule("this_wont_exist "));
promises.push(server.uninstallModule("this_wont_exist;no_it_really_wont"));
when.settle(promises).then(function(results) {
results[0].state.should.be.eql("rejected");
results[1].state.should.be.eql("rejected");
done();
});
});
it("rejects with generic error", function(done) {
var nodeInfo = [{module:"foo",types:["a"]}];
var removeModule = sinon.stub(redNodes,"removeModule",function(md) {
return when.resolve(nodeInfo);
});
var exec = sinon.stub(child_process,"exec",function(cmd,opt,cb) {
cb(new Error("test_error"),"","");
});
server.uninstallModule("this_wont_exist").then(function() {
done(new Error("Unexpected success"));
}).otherwise(function(err) {
done();
}).finally(function() {
exec.restore();
removeModule.restore();
});
});
it("succeeds when module is found", function(done) {
var nodeInfo = [{module:"foo",types:["a"]}];
var removeModule = sinon.stub(redNodes,"removeModule",function(md) {
return nodeInfo;
});
var exec = sinon.stub(child_process,"exec",function(cmd,opt,cb) {
cb(null,"","");
});
var exists = sinon.stub(fs,"existsSync", function(fn) { return true; });
server.uninstallModule("this_wont_exist").then(function(info) {
info.should.eql(nodeInfo);
commsMessages.should.have.length(1);
commsMessages[0].topic.should.equal("node/removed");
commsMessages[0].msg.should.eql(nodeInfo);
done();
}).otherwise(function(err) {
done(err);
}).finally(function() {
exec.restore();
removeModule.restore();
exists.restore();
});
});
});
});