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diff --git a/dgbuilder/test/red/nodes/flows_spec.js b/dgbuilder/test/red/nodes/flows_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 sinon = require("sinon");
+var when = require("when");
+var flows = require("../../../red/nodes/flows");
+var RedNode = require("../../../red/nodes/Node");
+var RED = require("../../../red/nodes");
+var events = require("../../../red/events");
+var typeRegistry = require("../../../red/nodes/registry");
+
+
+var settings = {
+    available: function() { return false; }
+}
+
+function loadFlows(testFlows, cb) {
+    var storage = {
+        getFlows: function() {
+            return when.resolve(testFlows);
+        },
+        getCredentials: function() {
+            return when.resolve({});
+        }
+    };
+    RED.init(settings, storage);
+    flows.load().then(function() {
+        should.deepEqual(testFlows, flows.getFlows());
+        cb();
+    });
+}
+
+describe('flows', function() {
+
+    describe('#add',function() {
+        it('should be called by node constructor',function(done) {
+            var n = new RedNode({id:'123',type:'abc'});
+            should.deepEqual(n, flows.get("123"));
+            flows.clear().then(function() {
+                done();
+            });
+        });
+    });
+
+    describe('#each',function() {
+        it('should "visit" all nodes',function(done) {
+            var nodes = [
+                new RedNode({id:'n0'}),
+                new RedNode({id:'n1'})
+            ];
+            var count = 0;
+            flows.each(function(node) {
+                should.deepEqual(nodes[count], node);
+                count += 1;
+                if (count == 2) {
+                    done();
+                }
+            });
+        });
+    });
+
+    describe('#load',function() {
+        it('should load nothing when storage is empty',function(done) {
+            loadFlows([], done);
+        });
+
+        it('should load and start an empty tab flow',function(done) {
+            loadFlows([{"type":"tab","id":"tab1","label":"Sheet 1"}], function() {});
+            events.once('nodes-started', function() { done(); });
+        });
+
+        it('should load and start a registered node type', function(done) {
+            RED.registerType('debug', function() {});
+            var typeRegistryGet = sinon.stub(typeRegistry,"get",function(nt) {
+                return function() {};
+            });
+            loadFlows([{"id":"n1","type":"debug"}], function() { });
+            events.once('nodes-started', function() {
+                typeRegistryGet.restore();
+                done();
+            });
+        });
+
+        it('should load and start when node type is registered', function(done) {
+            var typeRegistryGet = sinon.stub(typeRegistry,"get");
+            typeRegistryGet.onCall(0).returns(null);
+            typeRegistryGet.returns(function(){});
+            
+            loadFlows([{"id":"n2","type":"inject"}], function() {
+                events.emit('type-registered','inject');
+            });
+            events.once('nodes-started', function() {
+                typeRegistryGet.restore();
+                done();
+            });
+        });
+    });
+
+    describe('#setFlows',function() {
+        it('should save and start an empty tab flow',function(done) {
+            var saved = 0;
+            var testFlows = [{"type":"tab","id":"tab1","label":"Sheet 1"}];
+            var storage = {
+                saveFlows: function(conf) {
+                    var defer = when.defer();
+                    defer.resolve();
+                    should.deepEqual(testFlows, conf);
+                    return defer.promise;
+                },
+                saveCredentials: function (creds) {
+                    return when(true);
+                }
+            };
+            RED.init(settings, storage);
+            flows.setFlows(testFlows);
+            events.once('nodes-started', function() { done(); });
+        });
+    });
+
+});