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

/**
 * 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");

describe("red/storage/index", function() {
    
    it('rejects the promise when settings suggest loading a bad module', function(done) {
        
        var wrongModule = {
                storageModule : "thisaintloading"
        };
        
        var storage = require("../../../red/storage/index");
       storage.init(wrongModule).then( function() {
           var one = 1;
           var zero = 0;
           try {
               zero.should.equal(one, "The initialization promise should never get resolved");   
           } catch(err) {
               done(err);
           }
       }).catch(function(e) {
           done(); //successfully rejected promise
       });
    });
    
    it('non-string storage module', function(done) {
        var initSetsMeToTrue = false;
        
        var moduleWithBooleanSettingInit = {
                init : function() {
                    initSetsMeToTrue = true;
                }
        };
        
        var setsBooleanModule = {
                storageModule : moduleWithBooleanSettingInit
        };
        
        var storage = require("../../../red/storage/index");
        storage.init(setsBooleanModule);
        initSetsMeToTrue.should.be.true;
        done();
    });
    
    it('respects storage interface', function(done) {
        var calledFlagGetFlows = false;
        var calledFlagGetCredentials = false;
        var calledFlagGetAllFlows = false;
        var calledInit = false;
        
        var interfaceCheckerModule = {
                init : function (settings) {
                    settings.should.be.an.Object;
                    calledInit = true;
                },
                getFlows : function() {
                    calledFlagGetFlows = true;
                },
                saveFlows : function (flows) {
                    flows.should.be.true;
                },
                getCredentials : function() {
                    calledFlagGetCredentials = true;
                },
                saveCredentials : function(credentials) {
                    credentials.should.be.true;
                },
                getAllFlows : function() {
                    calledFlagGetAllFlows = true;
                },
                getFlow : function(fn) {
                    fn.should.be.true;
                },
                saveFlow : function(fn, data) {
                    fn.should.be.true;
                    data.should.be.true;
                },
                getLibraryEntry : function(type, path) {
                    type.should.be.true;
                    path.should.be.true;
                },
                saveLibraryEntry : function(type, path, meta, body) {
                    type.should.be.true;
                    path.should.be.true;
                    meta.should.be.true;
                    body.should.be.true;
                }
        };
        
        var moduleToLoad = {
                storageModule : interfaceCheckerModule
        };
        var storage = require("../../../red/storage/index");
        
        storage.init(moduleToLoad);
        storage.getFlows();
        storage.saveFlows(true);
        storage.getCredentials(); 
        storage.saveCredentials(true);
        storage.getAllFlows();
        storage.getFlow(true);
        storage.saveFlow(true, true);
        storage.getLibraryEntry(true, true);
        storage.saveLibraryEntry(true, true, true, true);
        
        calledInit.should.be.true;
        calledFlagGetFlows.should.be.true;
        calledFlagGetCredentials.should.be.true;
        calledFlagGetAllFlows.should.be.true;
        
        done();
    });
    
});