[CORD-1943] New service graph
- labels
- enforcing service position
- started documentation
- toggling service instances
- toggle fullscreen

Change-Id: I01b71fb2607fb58711d4624f6b5b6479609b2f4f
(cherry picked from commit 8cf33a3881ee15ebf93094f5b24d757af89ee9e9)
diff --git a/src/app/service-graph/services/graph.store.spec.ts b/src/app/service-graph/services/graph.store.spec.ts
new file mode 100644
index 0000000..a41809c
--- /dev/null
+++ b/src/app/service-graph/services/graph.store.spec.ts
@@ -0,0 +1,334 @@
+
+/*
+ * Copyright 2017-present Open Networking Foundation
+
+ * 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.
+ */
+
+import * as _ from 'lodash';
+import * as angular from 'angular';
+import 'angular-mocks';
+import {IXosGraphStore, XosGraphStore} from './graph.store';
+import {Subject} from 'rxjs/Subject';
+import {Graph} from 'graphlib';
+import {XosDebouncer} from '../../core/services/helpers/debounce.helper';
+
+interface ITestXosGraphStore extends IXosGraphStore {
+
+  // state
+  serviceGraph: Graph;
+  serviceInstanceShown: boolean;
+
+  // private methods
+  getNodeId: any;
+  getModelType: any;
+  addNode: any;
+  addEdge: any;
+  nodesFromGraph: any;
+  toggleServiceInstances: any;
+
+  // observables
+  ServiceInstanceSubscription: any;
+  ServiceInstanceLinkSubscription: any;
+}
+
+let service: ITestXosGraphStore;
+
+let scope: ng.IRootScopeService;
+
+const services = [
+  {
+    id: 1,
+    class_names: 'Service,XOSBase',
+    name: 'Service 1'
+  },
+  {
+    id: 2,
+    class_names: 'Service,XOSBase',
+    name: 'Service 2'
+  }
+];
+
+const servicedependencies = [
+  {
+    id: 1,
+    class_names: 'ServiceDependency,XOSBase',
+    provider_service_id: 2,
+    subscriber_service_id: 1
+  }
+];
+
+const serviceInstances = [
+  {
+    id: 1,
+    class_names: 'ServiceInstance,XOSBase',
+    name: 'ServiceInstance 1',
+    owner_id: 1
+  },
+  {
+    id: 2,
+    class_names: 'ServiceInstance,XOSBase',
+    name: 'ServiceInstance 2',
+    owner_id: 2
+  }
+];
+
+const serviceInstanceLinks = [
+  {
+    id: 1,
+    class_names: 'ServiceInstanceLink,XOSBase',
+    provider_service_instance_id: 1,
+    subscriber_service_instance_id: 2,
+  }
+];
+
+const subject_services = new Subject();
+const subject_servicedependency = new Subject();
+const subject_serviceinstances = new Subject();
+const subject_serviceinstancelinks = new Subject();
+
+let MockModelStore = {
+  query: jasmine.createSpy('XosModelStore.query')
+    .and.callFake((model) => {
+      if (model === 'Service') {
+        return subject_services.asObservable();
+      }
+      else if (model === 'ServiceDependency') {
+        return subject_servicedependency.asObservable();
+      }
+      else if (model === 'ServiceInstance') {
+        return subject_serviceinstances.asObservable();
+      }
+      else if (model === 'ServiceInstanceLink') {
+        return subject_serviceinstancelinks.asObservable();
+      }
+    })
+};
+
+
+describe('The XosGraphStore service', () => {
+
+  beforeEach(() => {
+    angular.module('XosGraphStore', [])
+      .service('XosGraphStore', XosGraphStore)
+      .value('XosModelStore', MockModelStore)
+      .service('XosDebouncer', XosDebouncer);
+
+    angular.mock.module('XosGraphStore');
+  });
+
+  beforeEach(angular.mock.inject((XosGraphStore: ITestXosGraphStore,
+                                  $rootScope: ng.IRootScopeService,
+                                  _$q_: ng.IQService) => {
+
+    service = XosGraphStore;
+    scope = $rootScope;
+
+  }));
+
+  it('should load services and service-dependency and add nodes to the graph', (done) => {
+    let event = 0;
+    service.get().subscribe(
+      (graph: Graph) => {
+        if (event === 1) {
+          expect(graph.nodes().length).toBe(services.length);
+          expect(graph.nodes()).toEqual(['service~1', 'service~2']);
+          expect(graph.edges().length).toBe(servicedependencies.length);
+          expect(graph.edges()).toEqual([{v: 'service~1', w: 'service~2'}]);
+          done();
+        }
+        else {
+          event = event + 1;
+        }
+      }
+    );
+    subject_services.next(services);
+    subject_servicedependency.next(servicedependencies);
+    scope.$apply();
+  });
+
+  describe(`the getModelType`, () => {
+    it('should return the node type', () => {
+      const res = service.getModelType(services[0]);
+      expect(res).toBe('service');
+    });
+
+    it('should return the node type', () => {
+      const res = service.getModelType(serviceInstances[0]);
+      expect(res).toBe('serviceinstance');
+    });
+  });
+
+  describe('the getNodeId method', () => {
+    it('should return the id for a Service', () => {
+      const res = service.getNodeId(services[0]);
+      expect(res).toBe(`service~1`);
+    });
+
+    it('should return the id for a ServiceInstance', () => {
+      const res = service.getNodeId(serviceInstances[0]);
+      expect(res).toBe(`serviceinstance~1`);
+    });
+  });
+
+  describe('the addNode method', () => {
+
+    beforeEach(() => {
+      spyOn(service.serviceGraph, 'setNode');
+      spyOn(service.serviceGraph, 'setEdge');
+    });
+
+    it(`should a service to the graph`, () => {
+      service.addNode(services[0]);
+      expect(service.serviceGraph.setNode).toHaveBeenCalledWith('service~1', services[0]);
+    });
+
+    it('should add a service instance to the graph', () => {
+      service.addNode(serviceInstances[0]);
+      expect(service.serviceGraph.setNode).toHaveBeenCalledWith('serviceinstance~1', serviceInstances[0]);
+    });
+
+    it('should add an "ownership" edge to the graph', () => {
+      service.addNode(serviceInstances[0]);
+      expect(service.serviceGraph.setEdge).toHaveBeenCalledWith('serviceinstance~1', 'service~1', {service: 1, service_instance: 1, type: 'ownership'});
+    });
+  });
+
+  describe('the addEdge method', () => {
+
+    beforeEach(() => {
+      spyOn(service.serviceGraph, 'setEdge');
+    });
+
+    it('should add a ServiceDependency to the graph', () => {
+      service.addEdge(servicedependencies[0]);
+      expect(service.serviceGraph.setEdge).toHaveBeenCalledWith('service~1', 'service~2', servicedependencies[0]);
+    });
+
+    it('should add a ServiceInstanceLink to the graph', () => {
+      service.addEdge(serviceInstanceLinks[0]);
+      expect(service.serviceGraph.setEdge).toHaveBeenCalledWith('serviceinstance~1', 'serviceinstance~2', serviceInstanceLinks[0]);
+    });
+  });
+
+  describe('the nodesFromGraph and linksFromGraph methods', () => {
+    let graph: Graph;
+
+    beforeEach(() => {
+      graph = new Graph();
+      services.forEach(s => {
+        graph.setNode(`service~${s.id}`, s);
+      });
+
+      servicedependencies.forEach(sd => {
+        graph.setEdge('service~1', 'service~2', sd);
+      });
+    });
+
+    it('should add id and type to the nodes', () => {
+      const nodes = service.nodesFromGraph(graph);
+      expect(nodes[0].id).toBe('service~1');
+      expect(nodes[0].type).toBe('service');
+      expect(nodes[0].data).toBeDefined();
+    });
+
+    it('should add id and type to the links', () => {
+      const links = service.linksFromGraph(graph);
+      expect(links[0].id).toBe('service~1-service~2');
+      expect(links[0].type).toBe('servicedependency');
+      expect(links[0].data).toBeDefined();
+    });
+
+    it('should handle ownership links', () => {
+      graph.setNode(`serviceinstance~1`, serviceInstances[0]);
+      graph.setEdge('service~1', 'serviceinstance~1', {type: 'ownership', service: 1, service_instance: 1});
+      const links = service.linksFromGraph(graph);
+      expect(links[1].source).toBe(0);
+      expect(links[1].target).toBe(2);
+    });
+
+    it('should handle serviceinstancelink links', () => {
+      graph.setNode(`serviceinstance~1`, serviceInstances[0]);
+      graph.setNode(`serviceinstance~2`, serviceInstances[1]);
+      graph.setEdge('serviceinstance~1', 'serviceinstance~2', serviceInstanceLinks[0]);
+      const links = service.linksFromGraph(graph);
+      const targetLink = _.find(links, {id: `serviceinstance~1-serviceinstance~2`});
+      expect(targetLink).toBeDefined();
+      expect(targetLink.source).toBe(3);
+      expect(targetLink.target).toBe(2);
+    });
+  });
+
+  describe(`the toggleServiceInstances method`, () => {
+    describe('when they are disabled', () => {
+
+      beforeEach(() => {
+        MockModelStore.query.calls.reset();
+      });
+
+      it('should fetch them', () => {
+        service.toggleServiceInstances();
+        expect(service.serviceInstanceShown).toBeTruthy();
+        expect(MockModelStore.query).toHaveBeenCalledWith(`ServiceInstance`, '/core/serviceinstances');
+        expect(MockModelStore.query).toHaveBeenCalledWith(`ServiceInstanceLink`, '/core/serviceinstancelinks');
+        expect(service.ServiceInstanceSubscription).toBeDefined();
+        expect(service.ServiceInstanceLinkSubscription).toBeDefined();
+      });
+    });
+
+    describe('when they are enabled', () => {
+      beforeEach(() => {
+        service.ServiceInstanceSubscription = {
+          unsubscribe: jasmine.createSpy('ServiceInstanceSubscription')
+        };
+        service.ServiceInstanceLinkSubscription = {
+          unsubscribe: jasmine.createSpy('ServiceInstanceLinkSubscription')
+        };
+        service.serviceInstanceShown = true;
+      });
+
+      it('should cancel subscriptions', () => {
+        service.toggleServiceInstances();
+        expect(service.serviceInstanceShown).toBeFalsy();
+        expect(service.ServiceInstanceSubscription.unsubscribe).toHaveBeenCalled();
+        expect(service.ServiceInstanceLinkSubscription.unsubscribe).toHaveBeenCalled();
+      });
+
+      describe('and loaded in the graph', () => {
+        beforeEach(() => {
+          service.serviceGraph = new Graph();
+
+          services.forEach(s => {
+            service.addNode(s);
+          });
+
+          serviceInstances.forEach(si => {
+            service.addNode(si);
+          });
+
+          serviceInstanceLinks.forEach(sil => {
+            service.addEdge(sil);
+          });
+        });
+        it('should remove ServiceInstance and related nodes/edges from the graph', () => {
+          let filteredGraph = service.toggleServiceInstances();
+          expect(service.serviceInstanceShown).toBeFalsy();
+          expect(filteredGraph.nodes().length).toBe(2);
+          expect(filteredGraph.edges().length).toBe(0);
+          expect(service.serviceGraph.nodes().length).toBe(2);
+          expect(service.serviceGraph.edges().length).toBe(0);
+        });
+      });
+    });
+  });
+});