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node-red/test/red/storage/localfilesystem_spec.js

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/**
* Copyright 2013, 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 fs = require('fs-extra');
var path = require('path');
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var localfilesystem = require("../../../red/storage/localfilesystem");
describe('LocalFileSystem', function() {
var userDir = path.join(__dirname,".testUserHome");
var testFlow = [{"type":"tab","id":"d8be2a6d.2741d8","label":"Sheet 1"}];
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beforeEach(function(done) {
fs.remove(userDir,function(err) {
fs.mkdir(userDir,done);
});
});
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afterEach(function(done) {
fs.remove(userDir,done);
});
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it('should initialise the user directory',function(done) {
localfilesystem.init({userDir:userDir}).then(function() {
fs.existsSync(path.join(userDir,"lib")).should.be.true;
fs.existsSync(path.join(userDir,"lib",'flows')).should.be.true;
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done();
}).otherwise(function(err) {
done(err);
});
});
it('should handle missing flow file',function(done) {
localfilesystem.init({userDir:userDir}).then(function() {
var flowFile = 'flows_'+require('os').hostname()+'.json';
var flowFilePath = path.join(userDir,flowFile);
fs.existsSync(flowFilePath).should.be.false;
localfilesystem.getFlows().then(function(flows) {
flows.should.eql([]);
done();
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
});
it('should save flows to the default file',function(done) {
localfilesystem.init({userDir:userDir}).then(function() {
var flowFile = 'flows_'+require('os').hostname()+'.json';
var flowFilePath = path.join(userDir,flowFile);
var flowFileBackupPath = path.join(userDir,"."+flowFile+".backup");
fs.existsSync(flowFilePath).should.be.false;
fs.existsSync(flowFileBackupPath).should.be.false;
localfilesystem.saveFlows(testFlow).then(function() {
fs.existsSync(flowFilePath).should.be.true;
fs.existsSync(flowFileBackupPath).should.be.false;
localfilesystem.getFlows().then(function(flows) {
flows.should.eql(testFlow);
done();
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
});
it('should save flows to the specified file',function(done) {
var defaultFlowFile = 'flows_'+require('os').hostname()+'.json';
var defaultFlowFilePath = path.join(userDir,defaultFlowFile);
var flowFile = 'test.json';
var flowFilePath = path.join(userDir,flowFile);
localfilesystem.init({userDir:userDir, flowFile:flowFilePath}).then(function() {
fs.existsSync(defaultFlowFilePath).should.be.false;
fs.existsSync(flowFilePath).should.be.false;
localfilesystem.saveFlows(testFlow).then(function() {
fs.existsSync(defaultFlowFilePath).should.be.false;
fs.existsSync(flowFilePath).should.be.true;
localfilesystem.getFlows().then(function(flows) {
flows.should.eql(testFlow);
done();
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
});
it('should backup the flows file', function(done) {
var defaultFlowFile = 'flows_'+require('os').hostname()+'.json';
var defaultFlowFilePath = path.join(userDir,defaultFlowFile);
var flowFile = 'test.json';
var flowFilePath = path.join(userDir,flowFile);
var flowFileBackupPath = path.join(userDir,"."+flowFile+".backup");
localfilesystem.init({userDir:userDir, flowFile:flowFilePath}).then(function() {
fs.existsSync(defaultFlowFilePath).should.be.false;
fs.existsSync(flowFilePath).should.be.false;
fs.existsSync(flowFileBackupPath).should.be.false;
localfilesystem.saveFlows(testFlow).then(function() {
fs.existsSync(flowFileBackupPath).should.be.false;
fs.existsSync(defaultFlowFilePath).should.be.false;
fs.existsSync(flowFilePath).should.be.true;
var content = fs.readFileSync(flowFilePath,'utf8');
var testFlow2 = [{"type":"tab","id":"bc5672ad.2741d8","label":"Sheet 2"}];
localfilesystem.saveFlows(testFlow2).then(function() {
fs.existsSync(flowFileBackupPath).should.be.true;
fs.existsSync(defaultFlowFilePath).should.be.false;
fs.existsSync(flowFilePath).should.be.true;
var backupContent = fs.readFileSync(flowFileBackupPath,'utf8');
content.should.equal(backupContent);
var content2 = fs.readFileSync(flowFilePath,'utf8');
content2.should.not.equal(backupContent);
done();
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
});
it('should handle missing credentials', function(done) {
var flowFile = 'test.json';
var flowFilePath = path.join(userDir,flowFile);
var credFile = path.join(userDir,"test_cred.json");
localfilesystem.init({userDir:userDir, flowFile:flowFilePath}).then(function() {
fs.existsSync(credFile).should.be.false;
localfilesystem.getCredentials().then(function(creds) {
creds.should.eql({});
done();
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
});
it('should handle credentials', function(done) {
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var flowFile = 'test.json';
var flowFilePath = path.join(userDir,flowFile);
var credFile = path.join(userDir,"test_cred.json");
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localfilesystem.init({userDir:userDir, flowFile:flowFilePath}).then(function() {
fs.existsSync(credFile).should.be.false;
var credentials = {"abc":{"type":"creds"}};
localfilesystem.saveCredentials(credentials).then(function() {
fs.existsSync(credFile).should.be.true;
localfilesystem.getCredentials().then(function(creds) {
creds.should.eql(credentials);
done();
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
});
it('should return an empty list of library flows',function(done) {
localfilesystem.init({userDir:userDir}).then(function() {
localfilesystem.getAllFlows().then(function(flows) {
flows.should.eql({});
done();
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
});
it('should return a valid list of library flows',function(done) {
localfilesystem.init({userDir:userDir}).then(function() {
var flowLib = path.join(userDir,"lib","flows");
fs.closeSync(fs.openSync(path.join(flowLib,"A.json"),"w"));
fs.closeSync(fs.openSync(path.join(flowLib,"B.json"),"w"));
fs.mkdirSync(path.join(flowLib,"C"));
fs.closeSync(fs.openSync(path.join(flowLib,"C","D.json"),"w"));
var testFlowsList = {"d":{"C":{"f":["D"]}},"f":["A","B"]};
localfilesystem.getAllFlows().then(function(flows) {
flows.should.eql(testFlowsList);
done();
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
});
it('should fail a non-existent flow', function(done) {
localfilesystem.init({userDir:userDir}).then(function() {
localfilesystem.getFlow("a/b/c.json").then(function(flow) {
should.fail(flow,"No flow","Flow found");
}).otherwise(function(err) {
// err should be null, so this will pass
done(err);
});
}).otherwise(function(err) {
done(err);
});
});
it('should return a flow',function(done) {
localfilesystem.init({userDir:userDir}).then(function() {
var testflowString = JSON.stringify(testFlow);
localfilesystem.saveFlow("a/b/c/d.json",testflowString).then(function() {
localfilesystem.getFlow("a/b/c/d.json").then(function(flow) {
flow.should.eql(testflowString);
done();
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
});
it('should return an empty list of library objects',function(done) {
localfilesystem.init({userDir:userDir}).then(function() {
localfilesystem.getLibraryEntry('object','').then(function(flows) {
flows.should.eql([]);
done();
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
});
it('should return an error for a non-existent library object',function(done) {
localfilesystem.init({userDir:userDir}).then(function() {
localfilesystem.getLibraryEntry('object','A/B').then(function(flows) {
should.fail(null,null,"non-existent flow");
}).otherwise(function(err) {
should.exist(err);
done();
});
}).otherwise(function(err) {
done(err);
});
});
function createObjectLibrary() {
var objLib = path.join(userDir,"lib","object");
fs.mkdirSync(objLib);
fs.mkdirSync(path.join(objLib,"A"));
fs.mkdirSync(path.join(objLib,"B"));
fs.mkdirSync(path.join(objLib,"B","C"));
fs.writeFileSync(path.join(objLib,"file1.js"),"// abc: def\n// not a metaline \n\n Hi",'utf8');
fs.writeFileSync(path.join(objLib,"B","file2.js"),"// ghi: jkl\n// not a metaline \n\n Hi",'utf8');
}
it('should return a directory listing of library objects',function(done) {
localfilesystem.init({userDir:userDir}).then(function() {
createObjectLibrary();
localfilesystem.getLibraryEntry('object','').then(function(flows) {
flows.should.eql([ 'A', 'B', { abc: 'def', fn: 'file1.js' } ]);
localfilesystem.getLibraryEntry('object','B').then(function(flows) {
flows.should.eql([ 'C', { ghi: 'jkl', fn: 'file2.js' } ]);
localfilesystem.getLibraryEntry('object','B/C').then(function(flows) {
flows.should.eql([]);
done();
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
});
it('should return a library object',function(done) {
localfilesystem.init({userDir:userDir}).then(function() {
createObjectLibrary();
localfilesystem.getLibraryEntry('object','B/file2.js').then(function(body) {
body.should.eql("// not a metaline \n\n Hi");
done();
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
});
it('should return a newly saved library object',function(done) {
localfilesystem.init({userDir:userDir}).then(function() {
createObjectLibrary();
localfilesystem.getLibraryEntry('object','B').then(function(flows) {
flows.should.eql([ 'C', { ghi: 'jkl', fn: 'file2.js' } ]);
localfilesystem.saveLibraryEntry('object','B/D/file3.js',{mno:'pqr'},"// another non meta line\n\n Hi There").then(function() {
localfilesystem.getLibraryEntry('object','B/D').then(function(flows) {
flows.should.eql([ { mno: 'pqr', fn: 'file3.js' } ]);
localfilesystem.getLibraryEntry('object','B/D/file3.js').then(function(body) {
body.should.eql("// another non meta line\n\n Hi There");
done();
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
}).otherwise(function(err) {
done(err);
});
});
});