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Code Issues Releases Wiki Activity

Move sessionStorageModule into main storageModule

Browse Source 
Fixes #586

 - add get/saveSessions to main storage module
 - handle storage modules without those functions
 - store .session file in userDir
This commit is contained in:
Nick O'Leary 2015-03-13 23:37:59 +00:00
parent 731efe1c01
commit 51e891ff88
14 changed files with 243 additions and 517 deletions
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4
red/api/auth/index.js
View File

@ -34,11 +34,11 @@ var server = oauth2orize.createServer();
server.exchange(oauth2orize.exchange.password(strategies.passwordTokenExchange));
function init(_settings) {
function init(_settings,storage) {
settings = _settings;
if (settings.adminAuth) {
Users.init(settings.adminAuth);
Tokens.init(settings)
Tokens.init(storage);
}
}

35
red/api/auth/tokens/index.js → red/api/auth/tokens.js
View File

@ -15,7 +15,6 @@
**/
var when = require("when");
var Sessions;
function generateToken(length) {
var c = "ABCDEFGHIJKLMNOPQRSTUZWXYZabcdefghijklmnopqrstuvwxyz1234567890";
@ -27,30 +26,18 @@ function generateToken(length) {
}
var sessionModule;
function moduleSelector(aSettings) {
var toReturn;
if (aSettings.sessionStorageModule) {
if (typeof aSettings.sessionStorageModule === "string") {
// TODO: allow storage modules to be specified by absolute path
toReturn = require("./"+aSettings.sessionStorageModule);
} else {
toReturn = aSettings.sessionStorageModule;
}
} else {
toReturn = require("./localfilesystem");
}
return toReturn;
}
var storage;
var sessions = {};
module.exports = {
init: function(settings) {
sessionModule = moduleSelector(settings);
sessionModule.init(settings);
init: function(_storage) {
storage = _storage;
return storage.getSessions().then(function(_sessions) {
sessions = _sessions||{};
});
},
get: function(token) {
return sessionModule.get(token);
return when.resolve(sessions[token]);
},
create: function(user,client,scope) {
var accessToken = generateToken(128);
@ -60,14 +47,16 @@ module.exports = {
scope:scope,
accessToken: accessToken,
};
return sessionModule.create(accessToken,session).then(function() {
sessions[accessToken] = session;
return storage.saveSessions(sessions).then(function() {
return {
accessToken: accessToken,
}
});
},
revoke: function(token) {
return sessionModule.delete(token);
delete sessions[token];
return storage.saveSessions(sessions);
}
}

72
red/api/auth/tokens/localfilesystem.js
View File

@ -1,72 +0,0 @@
/**
* Copyright 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 fs = require('fs');
var when = require('when');
var nodeFn = require('when/node/function');
var fspath = require("path");
var settings;
var sessionsFile;
var sessions = {};
/**
* Write content to a file using UTF8 encoding.
* This forces a fsync before completing to ensure
* the write hits disk.
*/
function writeFile(path,content) {
return when.promise(function(resolve,reject) {
var stream = fs.createWriteStream(path);
stream.on('open',function(fd) {
stream.end(content,'utf8',function() {
fs.fsync(fd,resolve);
});
});
stream.on('error',function(err) {
reject(err);
});
});
}
var api = module.exports = {
init: function(_settings) {
settings = _settings;
var userDir = settings.userDir || process.env.NODE_RED_HOME;
sessionsFile = fspath.join(userDir,".sessions.json");
try {
sessions = JSON.parse(fs.readFileSync(sessionsFile,'utf8'));
} catch(err) {
sessions = {};
}
return when.resolve();
},
get: function(token) {
return when.resolve(sessions[token]);
},
create: function(token,session) {
sessions[token] = session;
return writeFile(sessionsFile,JSON.stringify(sessions));
},
delete: function(token) {
delete sessions[token];
return writeFile(sessionsFile,JSON.stringify(sessions));
}
}

4
red/api/index.js
View File

@ -36,9 +36,9 @@ var errorHandler = function(err,req,res,next) {
res.send(400,err.toString());
};
function init(adminApp) {
function init(adminApp,storage) {
auth.init(settings);
auth.init(settings,storage);
// Editor
if (!settings.disableEditor) {

22
red/server.js
View File

@ -41,17 +41,16 @@ function init(_server,_settings) {
nodeApp = express();
app = express();
if (settings.httpAdminRoot !== false) {
require("./api").init(app);
}
}
function start() {
var defer = when.defer();
storage.init(settings).then(function() {
settings.load(storage).then(function() {
return storage.init(settings)
.then(settings.load(storage))
.then(function() {
if (settings.httpAdminRoot !== false) {
require("./api").init(app,storage);
}
if (log.metric()) {
runtimeMetricInterval = setInterval(function() {
reportMetrics();
@ -105,19 +104,12 @@ function start() {
redNodes.cleanModuleList();
}
}
defer.resolve();
redNodes.loadFlows();
}).otherwise(function(err) {
console.log(err);
});
comms.start();
});
}).otherwise(function(err) {
defer.reject(err);
});
return defer.promise;
}

18
red/storage/index.js
View File

@ -1,5 +1,5 @@
/**
* Copyright 2013, 2014 IBM Corp.
* Copyright 2013, 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.
@ -44,7 +44,7 @@ var storageModuleInterface = {
try {
storageModule = moduleSelector(settings);
settingsAvailable = storageModule.hasOwnProperty("getSettings") && storageModule.hasOwnProperty("saveSettings");
sessionsAvailable = storageModule.hasOwnProperty("getUserSessions") && storageModule.hasOwnProperty("saveUserSessions");
sessionsAvailable = storageModule.hasOwnProperty("getSessions") && storageModule.hasOwnProperty("saveSessions");
} catch (e) {
return when.reject(e);
}
@ -76,6 +76,20 @@ var storageModuleInterface = {
return when.resolve();
}
},
getSessions: function() {
if (sessionsAvailable) {
return storageModule.getSessions();
} else {
return when.resolve(null);
}
},
saveSessions: function(sessions) {
if (sessionsAvailable) {
return storageModule.saveSessions(sessions);
} else {
return when.resolve();
}
},
/* Library Functions */
getAllFlows: function() {

23
red/storage/localfilesystem.js
View File

@ -32,6 +32,7 @@ var flowsFileBackup;
var credentialsFile;
var credentialsFileBackup;
var oldCredentialsFile;
var sessionsFile;
var libDir;
var libFlowsDir;
var globalSettingsFile;
@ -191,6 +192,8 @@ var localfilesystem = {
flowsFileBackup = fspath.join(ffDir,"."+ffName+".backup");
sessionsFile = fspath.join(settings.userDir,".sessions.json");
libDir = fspath.join(settings.userDir,"lib");
libFlowsDir = fspath.join(libDir,"flows");
@ -288,6 +291,26 @@ var localfilesystem = {
saveSettings: function(settings) {
return writeFile(globalSettingsFile,JSON.stringify(settings,null,1));
},
getSessions: function() {
if (fs.existsSync(sessionsFile)) {
return nodeFn.call(fs.readFile,sessionsFile,'utf8').then(function(data) {
if (data) {
try {
return JSON.parse(data);
} catch(err) {
log.info("Corrupted sessions file - resetting");
return {};
}
} else {
return {};
}
});
}
return when.resolve({});
},
saveSessions: function(sessions) {
return writeFile(sessionsFile,JSON.stringify(sessions));
},
getAllFlows: function() {
return listFiles(libFlowsDir);

147
test/red/api/auth/tokens/index_spec.js
View File

@ -1,147 +0,0 @@
/**
* Copyright 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 Tokens = require("../../../../../red/api/auth/tokens");
describe("Tokens", function() {
describe("#init",function() {
var module = require("module");
var originalLoader;
beforeEach(function() {
originalLoader = module._load;
});
afterEach(function() {
module._load = originalLoader;
});
it('loads default storage plugin', function(done) {
module._load = function(name) {
name.should.equal("./localfilesystem");
return {init: function(settings) {done()}};
}
try {
Tokens.init({});
} catch(err) {
done(err);
}
});
it('loads the specified storage plugin', function(done) {
module._load = function(name) {
name.should.equal("./aTestExample");
return {init: function(settings) {done()}};
}
try {
Tokens.init({sessionStorageModule:"aTestExample"});
} catch(err) {
done(err);
}
});
it('uses the provided storage plugin', function(done) {
Tokens.init({sessionStorageModule:{init:function(settings){done()}}});
});
});
describe("#get",function() {
it('returns a valid token', function(done) {
Tokens.init({sessionStorageModule:{
init:function(settings){},
get: function(token) {
return when.resolve({user:"fred"});
}
}});
Tokens.get("1234").then(function(token) {
try {
token.should.have.a.property("user","fred");
done();
} catch(err) {
done(err);
}
});
});
it('returns null for an invalid token', function(done) {
Tokens.init({sessionStorageModule:{
init:function(settings){},
get: function(token) {
return when.resolve(null);
}
}});
Tokens.get("1234").then(function(token) {
try {
should.not.exist(token);
done();
} catch(err) {
done(err);
}
});
});
});
describe("#create",function() {
it('creates a token', function(done) {
var sessionStorageModule = {
init:function(settings){},
create: sinon.stub().returns(when.resolve())
};
Tokens.init({sessionStorageModule:sessionStorageModule});
Tokens.create("user","client","scope").then(function(token) {
try {
sessionStorageModule.create.called.should.be.true;
token.should.have.a.property('accessToken',sessionStorageModule.create.args[0][0]);
sessionStorageModule.create.args[0][1].should.have.a.property('user','user');
sessionStorageModule.create.args[0][1].should.have.a.property('client','client');
sessionStorageModule.create.args[0][1].should.have.a.property('scope','scope');
done();
} catch(err) {
done(err);
}
});
});
});
describe("#revoke", function() {
it('revokes a token', function(done) {
var deletedToken;
Tokens.init({sessionStorageModule:{
init:function(settings){},
delete: function(token) {
deletedToken = token;
return when.resolve(null);
}
}});
Tokens.revoke("1234").then(function() {
try {
deletedToken.should.equal("1234");
done();
} catch(err) {
done(err);
}
});
});
});
});

96
test/red/api/auth/tokens/localfilesystem_spec.js
View File

@ -1,96 +0,0 @@
/**
* Copyright 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 fs = require('fs-extra');
var path = require('path');
var localfilesystem = require("../../../../../red/api/auth/tokens/localfilesystem.js");
describe("Tokens localfilesystem", function() {
var userDir = path.join(__dirname,".testUserHome");
beforeEach(function(done) {
fs.remove(userDir,function(err) {
fs.mkdir(userDir,done);
});
});
afterEach(function(done) {
fs.remove(userDir,done);
});
it("initialise when no session file exists",function(done) {
localfilesystem.init({userDir:userDir}).then(function() {
localfilesystem.get("1234").then(function(token) {
should.not.exist(token);
done();
});
});
});
it("initialises when session file exists", function(done) {
var sessions = {"1234":{"user":"nol","client":"node-red-admin","scope":["*"],"accessToken":"1234"}};
fs.writeFileSync(path.join(userDir,".sessions.json"),JSON.stringify(sessions),"utf8");
localfilesystem.init({userDir:userDir}).then(function() {
localfilesystem.get("1234").then(function(token) {
token.should.eql(sessions['1234']);
done();
});
});
});
it("writes new tokens to the session file",function(done) {
var sessions = {"1234":{"user":"nol","client":"node-red-admin","scope":["*"],"accessToken":"1234"}};
fs.writeFileSync(path.join(userDir,".sessions.json"),JSON.stringify(sessions),"utf8");
localfilesystem.init({userDir:userDir}).then(function() {
localfilesystem.create("5678",{
user:"fred",
client:"client",
scope:["read"],
accessToken:"5678"
}).then(function() {
var newSessions = JSON.parse(fs.readFileSync(path.join(userDir,".sessions.json"),"utf8"));
newSessions.should.have.a.property("1234");
newSessions.should.have.a.property("5678");
done();
});
});
});
it("deletes tokens from the session file",function(done) {
var sessions = {
"1234":{"user":"nol","client":"node-red-admin","scope":["*"],"accessToken":"1234"},
"5678":{"user":"fred","client":"client","scope":["read"],"accessToken":"5678"}
};
fs.writeFileSync(path.join(userDir,".sessions.json"),JSON.stringify(sessions),"utf8");
localfilesystem.init({userDir:userDir}).then(function() {
localfilesystem.delete("5678").then(function() {
var newSessions = JSON.parse(fs.readFileSync(path.join(userDir,".sessions.json"),"utf8"));
newSessions.should.have.a.property("1234");
newSessions.should.not.have.a.property("5678");
done();
});
});
});
});

127
test/red/api/auth/tokens_spec.js Normal file
View File

@ -0,0 +1,127 @@
/**
* Copyright 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 Tokens = require("../../../../red/api/auth/tokens");
describe("Tokens", function() {
describe("#init",function() {
it('loads sessions', function(done) {
Tokens.init({
getSessions:function() {
done();
return when.resolve();
}
});
});
});
describe("#get",function() {
it('returns a valid token', function(done) {
Tokens.init({
getSessions:function() {
return when.resolve({"1234":{"user":"fred"}});
}
}).then(function() {
Tokens.get("1234").then(function(token) {
try {
token.should.have.a.property("user","fred");
done();
} catch(err) {
done(err);
}
});
});
});
it('returns null for an invalid token', function(done) {
Tokens.init({
getSessions:function() {
return when.resolve({});
}
}).then(function() {
Tokens.get("1234").then(function(token) {
try {
should.not.exist(token);
done();
} catch(err) {
done(err);
}
});
});
});
});
describe("#create",function() {
it('creates a token', function(done) {
var savedSession;
Tokens.init({
getSessions:function() {
return when.resolve({});
},
saveSessions:function(sess) {
savedSession = sess;
return when.resolve();
}
});
Tokens.create("user","client","scope").then(function(token) {
try {
should.exist(savedSession);
var sessionKeys = Object.keys(savedSession);
sessionKeys.should.have.lengthOf(1);
token.should.have.a.property('accessToken',sessionKeys[0]);
savedSession[sessionKeys[0]].should.have.a.property('user','user');
savedSession[sessionKeys[0]].should.have.a.property('client','client');
savedSession[sessionKeys[0]].should.have.a.property('scope','scope');
done();
} catch(err) {
done(err);
}
});
});
});
describe("#revoke", function() {
it('revokes a token', function(done) {
var savedSession;
Tokens.init({
getSessions:function() {
return when.resolve({"1234":{"user":"fred"}});
},
saveSessions:function(sess) {
savedSession = sess;
return when.resolve();
}
}).then(function() {
Tokens.revoke("1234").then(function() {
try {
savedSession.should.not.have.a.property("1234");
done();
} catch(err) {
done(err);
}
});
});
});
});
});

3
test/red/api/index_spec.js
View File

@ -17,6 +17,7 @@
var should = require("should");
var request = require("supertest");
var express = require("express");
var when = require("when");
var fs = require("fs");
var path = require("path");
var settings = require("../../../red/settings");
@ -62,7 +63,7 @@ describe("api index", function() {
//settings.init({disableEditor:true});
settings.init({adminAuth:{type: "credentials",users:[],default:{permissions:"read"}}});
app = express();
api.init(app);
api.init(app,{getSessions:function(){return when.resolve({})}});
});
after(function() {
settings.reset();

129
test/red/nodes/credentials_spec.js
View File

@ -332,134 +332,5 @@ describe('Credentials', function() {
});
});
//describe('registerEndpoint', function() {
// var path = require('path');
// var fs = require('fs-extra');
// var http = require('http');
// var express = require('express');
// var request = require('supertest');
//
// var server = require("../../../red/server");
// var localfilesystem = require("../../../red/storage/localfilesystem");
// var app = express();
// 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":{"foo": 2, "pswd":'sticks'}});
// });
// }) ;
// RED.init(http.createServer(function(req,res){app(req,res)}),
// {userDir: userDir});
// server.start().then(function () {
// done();
// });
// });
// });
// });
//
// after(function(done) {
// fs.remove(userDir,done);
// server.stop();
// index.load.restore();
// localfilesystem.getCredentials.restore();
// });
//
// function TestNode(n) {
// index.createNode(this, n);
// var node = this;
// this.on("log", function() {
// // do nothing
// });
// }
//
// it(': valid credential type', function(done) {
// index.registerType('test', TestNode, {
// credentials: {
// foo: {type:"test"}
// }
// });
// index.loadFlows().then(function() {
// var testnode = new TestNode({id:'tab1',type:'foo',name:'barney'});
// request(RED.httpAdmin).get('/credentials/test/tab1').expect(200).end(function(err,res) {
// if (err) {
// done(err);
// }
// res.body.should.have.property('foo', 2);
// done();
// });
// }).otherwise(function(err){
// done(err);
// });
// });
//
// it(': password credential type', function(done) {
// index.registerType('password', TestNode, {
// credentials: {
// pswd: {type:"password"}
// }
// });
// index.loadFlows().then(function() {
// var testnode = new TestNode({id:'tab1',type:'pswd',name:'barney'});
// request(RED.httpAdmin).get('/credentials/password/tab1').expect(200).end(function(err,res) {
// if (err) {
// done(err);
// }
// res.body.should.have.property('has_pswd', true);
// res.body.should.not.have.property('pswd');
// done();
// });
// }).otherwise(function(err){
// done(err);
// });
// });
//
// it(': returns 404 for undefined credential type', function(done) {
// index.registerType('test', TestNode, {
// credentials: {
// foo: {type:"test"}
// }
// });
// index.loadFlows().then(function() {
// var testnode = new TestNode({id:'tab1',type:'foo',name:'barney'});
// request(RED.httpAdmin).get('/credentials/unknownType/tab1').expect(404).end(done);
// }).otherwise(function(err){
// done(err);
// });
// });
//
// it(': undefined nodeID', function(done) {
// index.registerType('test', TestNode, {
// credentials: {
// foo: {type:"test"}
// }
// });
// index.loadFlows().then(function() {
// var testnode = new TestNode({id:'tab1',type:'foo',name:'barney'});
// request(RED.httpAdmin).get('/credentials/test/unknownNode').expect(200).end(function(err,res) {
// if (err) {
// done(err);
// }
// var b = res.body;
// res.body.should.not.have.property('foo');
// done();
// });
// }).otherwise(function(err){
// done(err);
// });
// });
//
//})
})

22
test/red/server_spec.js
View File

@ -44,13 +44,11 @@ describe("red/server", function() {
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);
@ -58,26 +56,6 @@ describe("red/server", function() {
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() {

58
test/red/storage/index_spec.js
View File

@ -14,6 +14,7 @@
* limitations under the License.
**/
var should = require("should");
var storage = require("../../../red/storage/index");
describe("red/storage/index", function() {
@ -23,7 +24,6 @@ describe("red/storage/index", function() {
storageModule : "thisaintloading"
};
var storage = require("../../../red/storage/index");
storage.init(wrongModule).then( function() {
var one = 1;
var zero = 0;
@ -50,17 +50,18 @@ describe("red/storage/index", function() {
storageModule : moduleWithBooleanSettingInit
};
var storage = require("../../../red/storage/index");
storage.init(setsBooleanModule);
initSetsMeToTrue.should.be.true;
done();
});
it('respects storage interface', function(done) {
it('respects storage interface', function() {
var calledFlagGetFlows = false;
var calledFlagGetCredentials = false;
var calledFlagGetAllFlows = false;
var calledInit = false;
var calledFlagGetSettings = false;
var calledFlagGetSessions = false;
var interfaceCheckerModule = {
init : function (settings) {
@ -79,6 +80,18 @@ describe("red/storage/index", function() {
saveCredentials : function(credentials) {
credentials.should.be.true;
},
getSettings : function() {
calledFlagGetSettings = true;
},
saveSettings : function(settings) {
settings.should.be.true;
},
getSessions : function() {
calledFlagGetSessions = true;
},
saveSessions : function(sessions) {
sessions.should.be.true;
},
getAllFlows : function() {
calledFlagGetAllFlows = true;
},
@ -102,15 +115,18 @@ describe("red/storage/index", function() {
};
var moduleToLoad = {
storageModule : interfaceCheckerModule
storageModule : interfaceCheckerModule
};
var storage = require("../../../red/storage/index");
storage.init(moduleToLoad);
storage.getFlows();
storage.saveFlows(true);
storage.getCredentials();
storage.saveCredentials(true);
storage.getSettings();
storage.saveSettings(true);
storage.getSessions();
storage.saveSessions(true);
storage.getAllFlows();
storage.getFlow("name");
storage.saveFlow("name", true);
@ -121,8 +137,38 @@ describe("red/storage/index", function() {
calledFlagGetFlows.should.be.true;
calledFlagGetCredentials.should.be.true;
calledFlagGetAllFlows.should.be.true;
});
describe('handles missing settings/sessions interface', function() {
before(function() {
var interfaceCheckerModule = {
init : function () {}
};
storage.init({storageModule: interfaceCheckerModule});
});
done();
it('defaults missing getSettings',function(done) {
storage.getSettings().then(function(settings) {
should.not.exist(settings);
done();
});
});
it('defaults missing saveSettings',function(done) {
storage.saveSettings({}).then(function() {
done();
});
});
it('defaults missing getSessions',function(done) {
storage.getSessions().then(function(settings) {
should.not.exist(settings);
done();
});
});
it('defaults missing saveSessions',function(done) {
storage.saveSessions({}).then(function() {
done();
});
});
});
});