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node-red/test/red/server_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 when = require("when");
var sinon = require("sinon");
var child_process = require('child_process');
var comms = require("../../red/comms");
var redNodes = require("../../red/nodes");
var api = require("../../red/api");
var server = require("../../red/server");
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 apiInit = sinon.stub(api,"init",function() {});
var dummyServer = {};
server.init(dummyServer,{httpAdminRoot:"/"});
commsInit.called.should.be.true;
apiInit.called.should.be.true;
should.exist(server.app);
should.exist(server.nodeApp);
server.server.should.equal(dummyServer);
commsInit.restore();
apiInit.restore();
});
it("does not initalise api when disabled", function() {
var commsInit = sinon.stub(comms,"init",function() {});
var apiInit = sinon.stub(api,"init",function() {});
var dummyServer = {};
server.init(dummyServer,{httpAdminRoot:false});
commsInit.called.should.be.true;
apiInit.called.should.be.false;
should.exist(server.app);
should.exist(server.nodeApp);
server.server.should.equal(dummyServer);
commsInit.restore();
apiInit.restore();
});
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 = [
{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);
});
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,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,cb) {
cb(new Error("test_error"),"","");
});
server.installModule("this_wont_exist").then(function() {
done(new Error("Unexpected success"));
}).otherwise(function(err) {
err.message.should.be.eql("Install failed");
done();
}).finally(function() {
exec.restore();
});
});
it("succeeds when module is found", function(done) {
var nodeInfo = {module:"foo",types:["a"]};
var exec = sinon.stub(child_process,"exec",function(cmd,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);
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,cb) {
cb(new Error("test_error"),"","");
});
server.uninstallModule("this_wont_exist").then(function() {
done(new Error("Unexpected success"));
}).otherwise(function(err) {
err.message.should.be.eql("Removal failed");
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,cb) {
cb(null,"","");
});
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();
});
});
});
});