Simplified and refactored manual creation of remote data objects for tests

src/app/+admin/admin-registries/bitstream-formats/bitstream-formats.component.spec.ts

@@ -13,6 +13,7 @@ import { NgbModule } from '@ng-bootstrap/ng-bootstrap';
 import { EnumKeysPipe } from '../../../shared/utils/enum-keys-pipe';
 import { HostWindowService } from '../../../shared/host-window.service';
 import { HostWindowServiceStub } from '../../../shared/testing/host-window-service-stub';
+import { createSuccessfulRemoteDataObject$ } from '../../../shared/testing/utils';
 
 describe('BitstreamFormatsComponent', () => {
   let comp: BitstreamFormatsComponent;
@@ -52,7 +53,7 @@ describe('BitstreamFormatsComponent', () => {
       extensions: null
     }
   ];
-  const mockFormats = observableOf(new RemoteData(false, false, true, undefined, new PaginatedList(null, mockFormatsList)));
+  const mockFormats = createSuccessfulRemoteDataObject$(new PaginatedList(null, mockFormatsList));
   const registryServiceStub = {
     getBitstreamFormats: () => mockFormats
   };

src/app/+admin/admin-registries/metadata-registry/metadata-registry.component.spec.ts

@@ -17,6 +17,7 @@ import { ChangeDetectionStrategy, NO_ERRORS_SCHEMA } from '@angular/core';
 import { NotificationsService } from '../../../shared/notifications/notifications.service';
 import { NotificationsServiceStub } from '../../../shared/testing/notifications-service-stub';
 import { RestResponse } from '../../../core/cache/response.models';
+import { createSuccessfulRemoteDataObject$ } from '../../../shared/testing/utils';
 
 describe('MetadataRegistryComponent', () => {
   let comp: MetadataRegistryComponent;
@@ -36,7 +37,7 @@ describe('MetadataRegistryComponent', () => {
       namespace: 'http://dspace.org/mockschema'
     }
   ];
-  const mockSchemas = observableOf(new RemoteData(false, false, true, undefined, new PaginatedList(null, mockSchemasList)));
+  const mockSchemas = createSuccessfulRemoteDataObject$(new PaginatedList(null, mockSchemasList));
   /* tslint:disable:no-empty */
   const registryServiceStub = {
     getMetadataSchemas: () => mockSchemas,

src/app/+admin/admin-registries/metadata-schema/metadata-schema.component.spec.ts

@@ -21,6 +21,7 @@ import { NotificationsService } from '../../../shared/notifications/notification
 import { NotificationsServiceStub } from '../../../shared/testing/notifications-service-stub';
 import { RestResponse } from '../../../core/cache/response.models';
 import { MetadataSchema } from '../../../core/metadata/metadata-schema.model';
+import { createSuccessfulRemoteDataObject$ } from '../../../shared/testing/utils';
 
 describe('MetadataSchemaComponent', () => {
   let comp: MetadataSchemaComponent;
@@ -74,12 +75,12 @@ describe('MetadataSchemaComponent', () => {
       schema: mockSchemasList[1]
     }
   ];
-  const mockSchemas = observableOf(new RemoteData(false, false, true, undefined, new PaginatedList(null, mockSchemasList)));
+  const mockSchemas = createSuccessfulRemoteDataObject$(new PaginatedList(null, mockSchemasList));
   /* tslint:disable:no-empty */
   const registryServiceStub = {
     getMetadataSchemas: () => mockSchemas,
-    getMetadataFieldsBySchema: (schema: MetadataSchema) => observableOf(new RemoteData(false, false, true, undefined, new PaginatedList(null, mockFieldsList.filter((value) => value.schema === schema)))),
+    getMetadataFieldsBySchema: (schema: MetadataSchema) => createSuccessfulRemoteDataObject$(new PaginatedList(null, mockFieldsList.filter((value) => value.schema === schema))),
-    getMetadataSchemaByName: (schemaName: string) => observableOf(new RemoteData(false, false, true, undefined, mockSchemasList.filter((value) => value.prefix === schemaName)[0])),
+    getMetadataSchemaByName: (schemaName: string) => createSuccessfulRemoteDataObject$(mockSchemasList.filter((value) => value.prefix === schemaName)[0]),
     getActiveMetadataField: () => observableOf(undefined),
     getSelectedMetadataFields: () => observableOf([]),
     editMetadataField: (schema) => {},

src/app/+browse-by/+browse-by-date-page/browse-by-date-page.component.spec.ts

@@ -18,6 +18,7 @@ import { Item } from '../../core/shared/item.model';
 import { ENV_CONFIG, GLOBAL_CONFIG } from '../../../config';
 import { BrowseEntrySearchOptions } from '../../core/browse/browse-entry-search-options.model';
 import { toRemoteData } from '../+browse-by-metadata-page/browse-by-metadata-page.component.spec';
+import { createSuccessfulRemoteDataObject$ } from '../../shared/testing/utils';
 
 describe('BrowseByDatePageComponent', () => {
   let comp: BrowseByDatePageComponent;
@@ -48,11 +49,11 @@ describe('BrowseByDatePageComponent', () => {
   const mockBrowseService = {
     getBrowseEntriesFor: (options: BrowseEntrySearchOptions) => toRemoteData([]),
     getBrowseItemsFor: (value: string, options: BrowseEntrySearchOptions) => toRemoteData([firstItem]),
-    getFirstItemFor: () => observableOf(new RemoteData(false, false, true, undefined, firstItem))
+    getFirstItemFor: () => createSuccessfulRemoteDataObject$(firstItem)
   };
 
   const mockDsoService = {
-    findById: () => observableOf(new RemoteData(false, false, true, null, mockCommunity))
+    findById: () => createSuccessfulRemoteDataObject$(mockCommunity)
   };
 
   const activatedRouteStub = Object.assign(new ActivatedRouteStub(), {

src/app/+browse-by/+browse-by-metadata-page/browse-by-metadata-page.component.spec.ts

@@ -21,6 +21,7 @@ import { DSpaceObjectDataService } from '../../core/data/dspace-object-data.serv
 import { Community } from '../../core/shared/community.model';
 import { MockRouter } from '../../shared/mocks/mock-router';
 import { ResourceType } from '../../core/shared/resource-type';
+import { createSuccessfulRemoteDataObject$ } from '../../shared/testing/utils';
 
 describe('BrowseByMetadataPageComponent', () => {
   let comp: BrowseByMetadataPageComponent;
@@ -74,7 +75,7 @@ describe('BrowseByMetadataPageComponent', () => {
   };
 
   const mockDsoService = {
-    findById: () => observableOf(new RemoteData(false, false, true, null, mockCommunity))
+    findById: () => createSuccessfulRemoteDataObject$(mockCommunity)
   };
 
   const activatedRouteStub = Object.assign(new ActivatedRouteStub(), {
@@ -155,5 +156,5 @@ describe('BrowseByMetadataPageComponent', () => {
 });
 
 export function toRemoteData(objects: any[]): Observable<RemoteData<PaginatedList<any>>> {
-  return observableOf(new RemoteData(false, false, true, null, new PaginatedList(new PageInfo(), objects)));
+  return createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), objects));
 }

src/app/+browse-by/+browse-by-title-page/browse-by-title-page.component.spec.ts

@@ -17,6 +17,7 @@ import { RemoteData } from '../../core/data/remote-data';
 import { DSpaceObjectDataService } from '../../core/data/dspace-object-data.service';
 import { BrowseService } from '../../core/browse/browse.service';
 import { MockRouter } from '../../shared/mocks/mock-router';
+import { createSuccessfulRemoteDataObject$ } from '../../shared/testing/utils';
 
 describe('BrowseByTitlePageComponent', () => {
   let comp: BrowseByTitlePageComponent;
@@ -52,7 +53,7 @@ describe('BrowseByTitlePageComponent', () => {
   };
 
   const mockDsoService = {
-    findById: () => observableOf(new RemoteData(false, false, true, null, mockCommunity))
+    findById: () => createSuccessfulRemoteDataObject$(mockCommunity)
   };
 
   const activatedRouteStub = Object.assign(new ActivatedRouteStub(), {

src/app/+collection-page/create-collection-page/create-collection-page.guard.spec.ts

@@ -1,9 +1,11 @@
 import { CreateCollectionPageGuard } from './create-collection-page.guard';
 import { MockRouter } from '../../shared/mocks/mock-router';
-import { RemoteData } from '../../core/data/remote-data';
 import { Community } from '../../core/shared/community.model';
-import { of as observableOf } from 'rxjs';
 import { first } from 'rxjs/operators';
+import {
+  createFailedRemoteDataObject$,
+  createSuccessfulRemoteDataObject$
+} from '../../shared/testing/utils';
 
 describe('CreateCollectionPageGuard', () => {
   describe('canActivate', () => {
@@ -15,11 +17,11 @@ describe('CreateCollectionPageGuard', () => {
       communityDataServiceStub = {
         findById: (id: string) => {
           if (id === 'valid-id') {
-            return observableOf(new RemoteData(false, false, true, null, new Community()));
+            return createSuccessfulRemoteDataObject$(new Community());
           } else if (id === 'invalid-id') {
-            return observableOf(new RemoteData(false, false, true, null, undefined));
+            return createSuccessfulRemoteDataObject$(undefined);
           } else if (id === 'error-id') {
-            return observableOf(new RemoteData(false, false, false, null, new Community()));
+            return createFailedRemoteDataObject$(new Community());
           }
         }
       };

src/app/+community-page/create-community-page/create-community-page.guard.spec.ts

@@ -1,9 +1,11 @@
 import { CreateCommunityPageGuard } from './create-community-page.guard';
 import { MockRouter } from '../../shared/mocks/mock-router';
-import { RemoteData } from '../../core/data/remote-data';
 import { Community } from '../../core/shared/community.model';
-import { of as observableOf } from 'rxjs';
 import { first } from 'rxjs/operators';
+import {
+  createFailedRemoteDataObject$,
+  createSuccessfulRemoteDataObject$
+} from '../../shared/testing/utils';
 
 describe('CreateCommunityPageGuard', () => {
   describe('canActivate', () => {
@@ -15,11 +17,11 @@ describe('CreateCommunityPageGuard', () => {
       communityDataServiceStub = {
         findById: (id: string) => {
           if (id === 'valid-id') {
-            return observableOf(new RemoteData(false, false, true, null, new Community()));
+            return createSuccessfulRemoteDataObject$(new Community());
           } else if (id === 'invalid-id') {
-            return observableOf(new RemoteData(false, false, true, null, undefined));
+            return createSuccessfulRemoteDataObject$(undefined);
           } else if (id === 'error-id') {
-            return observableOf(new RemoteData(false, false, false, null, new Community()));
+            return createFailedRemoteDataObject$(new Community());
           }
         }
       };

src/app/+community-page/sub-community-list/community-page-sub-community-list.component.spec.ts

@@ -11,6 +11,7 @@ import {RouterTestingModule} from '@angular/router/testing';
 import {NoopAnimationsModule} from '@angular/platform-browser/animations';
 import {By} from '@angular/platform-browser';
 import {of as observableOf,  Observable } from 'rxjs';
+import { createSuccessfulRemoteDataObject$ } from '../../shared/testing/utils';
 
 describe('SubCommunityList Component', () => {
   let comp: CommunityPageSubCommunityListComponent;
@@ -40,8 +41,7 @@ describe('SubCommunityList Component', () => {
         { language: 'en_US', value: 'Test title' }
       ]
     },
-    subcommunities: observableOf(new RemoteData(true, true, true,
+    subcommunities: createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), []))
-      undefined, new PaginatedList(new PageInfo(), [])))
   });
 
   const mockCommunity = Object.assign(new Community(), {
@@ -50,8 +50,7 @@ describe('SubCommunityList Component', () => {
           { language: 'en_US', value: 'Test title' }
         ]
       },
-      subcommunities: observableOf(new RemoteData(true, true, true,
+      subcommunities: createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), subcommunities))
-        undefined, new PaginatedList(new PageInfo(), subcommunities)))
     })
   ;
 

src/app/+item-page/edit-item-page/edit-item-operators.spec.ts

@@ -2,6 +2,10 @@ import {RemoteData} from '../../core/data/remote-data';
 import {hot} from 'jasmine-marbles';
 import {Item} from '../../core/shared/item.model';
 import {findSuccessfulAccordingTo} from './edit-item-operators';
+import {
+  createFailedRemoteDataObject,
+  createSuccessfulRemoteDataObject
+} from '../../shared/testing/utils';
 
 describe('findSuccessfulAccordingTo', () => {
   let mockItem1;
@@ -19,11 +23,11 @@ describe('findSuccessfulAccordingTo', () => {
   });
   it('should return first successful RemoteData Observable that complies to predicate', () => {
     const testRD = {
-      a: new RemoteData(false, false, true, null, undefined),
+      a: createSuccessfulRemoteDataObject(undefined),
-      b: new RemoteData(false, false, false, null, mockItem1),
+      b: createFailedRemoteDataObject(mockItem1),
-      c: new RemoteData(false, false, true, null, mockItem2),
+      c: createSuccessfulRemoteDataObject(mockItem2),
-      d: new RemoteData(false, false, true, null, mockItem1),
+      d: createSuccessfulRemoteDataObject(mockItem1),
-      e: new RemoteData(false, false, true, null, mockItem2),
+      e: createSuccessfulRemoteDataObject(mockItem2),
     };
 
     const source = hot('abcde', testRD);

src/app/+item-page/edit-item-page/item-delete/item-delete.component.spec.ts

@@ -17,6 +17,7 @@ import { By } from '@angular/platform-browser';
 import { ItemDeleteComponent } from './item-delete.component';
 import { getItemEditPath } from '../../item-page-routing.module';
 import { RestResponse } from '../../../core/cache/response.models';
+import { createSuccessfulRemoteDataObject } from '../../../shared/testing/utils';
 
 let comp: ItemDeleteComponent;
 let fixture: ComponentFixture<ItemDeleteComponent>;
@@ -49,7 +50,7 @@ describe('ItemDeleteComponent', () => {
 
     routeStub = {
       data: observableOf({
-        item: new RemoteData(false, false, true, null, mockItem)
+        item: createSuccessfulRemoteDataObject(mockItem)
       })
     };
 

src/app/+item-page/edit-item-page/item-metadata/edit-in-place-field/edit-in-place-field.component.spec.ts

@@ -17,6 +17,7 @@ import { TranslateModule } from '@ngx-translate/core';
 import { MetadatumViewModel } from '../../../../core/shared/metadata.models';
 import { MetadataSchema } from '../../../../core/metadata/metadata-schema.model';
 import { MetadataField } from '../../../../core/metadata/metadata-field.model';
+import { createSuccessfulRemoteDataObject$ } from '../../../../shared/testing/utils';
 
 let comp: EditInPlaceFieldComponent;
 let fixture: ComponentFixture<EditInPlaceFieldComponent>;
@@ -59,7 +60,7 @@ describe('EditInPlaceFieldComponent', () => {
     paginatedMetadataFields = new PaginatedList(undefined, [mdField1, mdField2, mdField3]);
 
     metadataFieldService = jasmine.createSpyObj({
-      queryMetadataFields: observableOf(new RemoteData(false, false, true, undefined, paginatedMetadataFields)),
+      queryMetadataFields: createSuccessfulRemoteDataObject$(paginatedMetadataFields),
     });
     objectUpdatesService = jasmine.createSpyObj('objectUpdatesService',
       {

src/app/+item-page/edit-item-page/item-metadata/item-metadata.component.spec.ts

@@ -20,13 +20,16 @@ import { RouterStub } from '../../../shared/testing/router-stub';
 import { GLOBAL_CONFIG } from '../../../../config';
 import { Item } from '../../../core/shared/item.model';
 import { FieldChangeType } from '../../../core/data/object-updates/object-updates.actions';
-import { RemoteData } from '../../../core/data/remote-data';
 import { MetadatumViewModel } from '../../../core/shared/metadata.models';
 import { RegistryService } from '../../../core/registry/registry.service';
 import { PaginatedList } from '../../../core/data/paginated-list';
 import { Metadata } from '../../../core/shared/metadata.utils';
 import { MetadataSchema } from '../../../core/metadata/metadata-schema.model';
 import { MetadataField } from '../../../core/metadata/metadata-field.model';
+import {
+  createSuccessfulRemoteDataObject,
+  createSuccessfulRemoteDataObject$
+} from '../../../shared/testing/utils';
 
 let comp: ItemMetadataComponent;
 let fixture: ComponentFixture<ItemMetadataComponent>;
@@ -116,18 +119,18 @@ describe('ItemMetadataComponent', () => {
       )
       ;
       itemService = jasmine.createSpyObj('itemService', {
-        update: observableOf(new RemoteData(false, false, true, undefined, item)),
+        update: createSuccessfulRemoteDataObject$(item),
         commitUpdates: {}
       });
       routeStub = {
         parent: {
-          data: observableOf({ item: new RemoteData(false, false, true, null, item) })
+          data: observableOf({ item: createSuccessfulRemoteDataObject(item) })
         }
       };
       paginatedMetadataFields = new PaginatedList(undefined, [mdField1, mdField2, mdField3]);
 
       metadataFieldService = jasmine.createSpyObj({
-        getAllMetadataFields: observableOf(new RemoteData(false, false, true, undefined, paginatedMetadataFields))
+        getAllMetadataFields:createSuccessfulRemoteDataObject$(paginatedMetadataFields)
       });
       scheduler = getTestScheduler();
       objectUpdatesService = jasmine.createSpyObj('objectUpdatesService',

src/app/+item-page/edit-item-page/item-private/item-private.component.spec.ts

@@ -16,6 +16,7 @@ import { CUSTOM_ELEMENTS_SCHEMA } from '@angular/core';
 import { By } from '@angular/platform-browser';
 import { ItemPrivateComponent } from './item-private.component';
 import { RestResponse } from '../../../core/cache/response.models';
+import { createSuccessfulRemoteDataObject } from '../../../shared/testing/utils';
 
 let comp: ItemPrivateComponent;
 let fixture: ComponentFixture<ItemPrivateComponent>;
@@ -50,7 +51,7 @@ describe('ItemPrivateComponent', () => {
 
     routeStub = {
       data: observableOf({
-        item: new RemoteData(false, false, true, null, {
+        item: createSuccessfulRemoteDataObject({
           id: 'fake-id'
         })
       })

src/app/+item-page/edit-item-page/item-public/item-public.component.spec.ts

@@ -16,6 +16,7 @@ import { CUSTOM_ELEMENTS_SCHEMA } from '@angular/core';
 import { By } from '@angular/platform-browser';
 import { ItemPublicComponent } from './item-public.component';
 import { RestResponse } from '../../../core/cache/response.models';
+import { createSuccessfulRemoteDataObject } from '../../../shared/testing/utils';
 
 let comp: ItemPublicComponent;
 let fixture: ComponentFixture<ItemPublicComponent>;
@@ -50,7 +51,7 @@ describe('ItemPublicComponent', () => {
 
     routeStub = {
       data: observableOf({
-        item: new RemoteData(false, false, true, null, {
+        item: createSuccessfulRemoteDataObject({
           id: 'fake-id'
         })
       })

src/app/+item-page/edit-item-page/item-reinstate/item-reinstate.component.spec.ts

@@ -16,6 +16,7 @@ import { CUSTOM_ELEMENTS_SCHEMA } from '@angular/core';
 import { By } from '@angular/platform-browser';
 import { ItemReinstateComponent } from './item-reinstate.component';
 import { RestResponse } from '../../../core/cache/response.models';
+import { createSuccessfulRemoteDataObject } from '../../../shared/testing/utils';
 
 let comp: ItemReinstateComponent;
 let fixture: ComponentFixture<ItemReinstateComponent>;
@@ -50,7 +51,7 @@ describe('ItemReinstateComponent', () => {
 
     routeStub = {
       data: observableOf({
-        item: new RemoteData(false, false, true, null, {
+        item: createSuccessfulRemoteDataObject({
           id: 'fake-id'
         })
       })

src/app/+item-page/edit-item-page/item-status/item-status.component.spec.ts

@@ -12,6 +12,7 @@ import { By } from '@angular/platform-browser';
 import { CUSTOM_ELEMENTS_SCHEMA } from '@angular/core';
 import { of as observableOf } from 'rxjs';
 import { RemoteData } from '../../../core/data/remote-data';
+import { createSuccessfulRemoteDataObject } from '../../../shared/testing/utils';
 
 describe('ItemStatusComponent', () => {
   let comp: ItemStatusComponent;
@@ -27,7 +28,7 @@ describe('ItemStatusComponent', () => {
 
   const routeStub = {
       parent: {
-        data: observableOf({ item: new RemoteData(false, false, true, null, mockItem) })
+        data: observableOf({ item: createSuccessfulRemoteDataObject(mockItem) })
       }
     };
 

src/app/+item-page/edit-item-page/item-withdraw/item-withdraw.component.spec.ts

@@ -16,6 +16,7 @@ import { CUSTOM_ELEMENTS_SCHEMA } from '@angular/core';
 import { ItemWithdrawComponent } from './item-withdraw.component';
 import { By } from '@angular/platform-browser';
 import { RestResponse } from '../../../core/cache/response.models';
+import { createSuccessfulRemoteDataObject } from '../../../shared/testing/utils';
 
 let comp: ItemWithdrawComponent;
 let fixture: ComponentFixture<ItemWithdrawComponent>;
@@ -50,7 +51,7 @@ describe('ItemWithdrawComponent', () => {
 
     routeStub = {
       data: observableOf({
-        item: new RemoteData(false, false, true, null, {
+        item: createSuccessfulRemoteDataObject({
           id: 'fake-id'
         })
       })

src/app/+item-page/edit-item-page/simple-item-action/abstract-simple-item-action.component.spec.ts

@@ -17,6 +17,10 @@ import { By } from '@angular/platform-browser';
 import { of as observableOf } from 'rxjs';
 import { getItemEditPath } from '../../item-page-routing.module';
 import { RestResponse } from '../../../core/cache/response.models';
+import {
+  createSuccessfulRemoteDataObject,
+  createSuccessfulRemoteDataObject$
+} from '../../../shared/testing/utils';
 
 /**
  * Test component that implements the AbstractSimpleItemActionComponent used to test the
@@ -65,12 +69,12 @@ describe('AbstractSimpleItemActionComponent', () => {
     });
 
     mockItemDataService = jasmine.createSpyObj({
-      findById: observableOf(new RemoteData(false, false, true, undefined, mockItem))
+      findById: createSuccessfulRemoteDataObject$(mockItem)
     });
 
     routeStub = {
       data: observableOf({
-        item: new RemoteData(false, false, true, null, {
+        item: createSuccessfulRemoteDataObject({
           id: 'fake-id'
         })
       })

src/app/+item-page/field-components/collections/collections.component.spec.ts

@@ -9,6 +9,10 @@ import { Item } from '../../../core/shared/item.model';
 import { of as observableOf } from 'rxjs';
 import { RemoteData } from '../../../core/data/remote-data';
 import { TranslateModule } from '@ngx-translate/core';
+import {
+  createFailedRemoteDataObject$,
+  createSuccessfulRemoteDataObject$
+} from '../../../shared/testing/utils';
 
 let collectionsComponent: CollectionsComponent;
 let fixture: ComponentFixture<CollectionsComponent>;
@@ -24,8 +28,8 @@ const mockCollection1: Collection = Object.assign(new Collection(), {
   }
 });
 
-const succeededMockItem: Item = Object.assign(new Item(), {owningCollection: observableOf(new RemoteData(false, false, true, null, mockCollection1))});
+const succeededMockItem: Item = Object.assign(new Item(), {owningCollection: createSuccessfulRemoteDataObject$(mockCollection1)});
-const failedMockItem: Item = Object.assign(new Item(), {owningCollection: observableOf(new RemoteData(false, false, false, null, mockCollection1))});
+const failedMockItem: Item = Object.assign(new Item(), {owningCollection: createFailedRemoteDataObject$(mockCollection1)});
 
 describe('CollectionsComponent', () => {
   beforeEach(async(() => {

src/app/+item-page/full/full-item-page.component.spec.ts

@@ -17,9 +17,13 @@ import { RemoteData } from '../../core/data/remote-data';
 import { of as observableOf } from 'rxjs';
 import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
 import { By } from '@angular/platform-browser';
+import {
+  createSuccessfulRemoteDataObject,
+  createSuccessfulRemoteDataObject$
+} from '../../shared/testing/utils';
 
 const mockItem: Item = Object.assign(new Item(), {
-  bitstreams: observableOf(new RemoteData(false, false, true, null, new PaginatedList(new PageInfo(), []))),
+  bitstreams: createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), [])),
   metadata: {
       'dc.title': [
         {
@@ -30,7 +34,7 @@ const mockItem: Item = Object.assign(new Item(), {
     }
 });
 const routeStub = Object.assign(new ActivatedRouteStub(), {
-  data: observableOf({ item: new RemoteData(false, false, true, null, mockItem) })
+  data: observableOf({ item: createSuccessfulRemoteDataObject(mockItem) })
 });
 const metadataServiceStub = {
   /* tslint:disable:no-empty */

src/app/+item-page/simple/field-components/specific-field/item-page-field.component.spec.ts

@@ -11,6 +11,7 @@ import { ItemPageFieldComponent } from './item-page-field.component';
 import { MetadataValuesComponent } from '../../../field-components/metadata-values/metadata-values.component';
 import { of as observableOf } from 'rxjs';
 import { MetadataMap, MetadataValue } from '../../../../core/shared/metadata.models';
+import { createSuccessfulRemoteDataObject$ } from '../../../../shared/testing/utils';
 
 let comp: ItemPageFieldComponent;
 let fixture: ComponentFixture<ItemPageFieldComponent>;
@@ -52,7 +53,7 @@ describe('ItemPageFieldComponent', () => {
 
 export function mockItemWithMetadataFieldAndValue(field: string, value: string): Item {
   const item = Object.assign(new Item(), {
-    bitstreams: observableOf(new RemoteData(false, false, true, null, new PaginatedList(new PageInfo(), []))),
+    bitstreams: createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), [])),
     metadata: new MetadataMap()
   });
   item.metadata[field] = [{

src/app/+item-page/simple/item-page.component.spec.ts

@@ -16,9 +16,13 @@ import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
 import { By } from '@angular/platform-browser';
 import { createRelationshipsObservable } from './item-types/shared/item.component.spec';
 import { of as observableOf } from 'rxjs';
+import {
+  createFailedRemoteDataObject$, createPendingRemoteDataObject$, createSuccessfulRemoteDataObject,
+  createSuccessfulRemoteDataObject$
+} from '../../shared/testing/utils';
 
 const mockItem: Item = Object.assign(new Item(), {
-  bitstreams: observableOf(new RemoteData(false, false, true, null, new PaginatedList(new PageInfo(), []))),
+  bitstreams: createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), [])),
   metadata: [],
   relationships: createRelationshipsObservable()
 });
@@ -33,7 +37,7 @@ describe('ItemPageComponent', () => {
     /* tslint:enable:no-empty */
   };
   const mockRoute = Object.assign(new ActivatedRouteStub(), {
-    data: observableOf({ item: new RemoteData(false, false, true, null, mockItem) })
+    data: observableOf({ item: createSuccessfulRemoteDataObject(mockItem) })
   });
 
   beforeEach(async(() => {
@@ -66,7 +70,8 @@ describe('ItemPageComponent', () => {
 
   describe('when the item is loading', () => {
     beforeEach(() => {
-      comp.itemRD$ = observableOf(new RemoteData(true, true, true, null, undefined));
+      comp.itemRD$ = createPendingRemoteDataObject$(undefined);
+      // comp.itemRD$ = observableOf(new RemoteData(true, true, true, null, undefined));
       fixture.detectChanges();
     });
 
@@ -78,7 +83,7 @@ describe('ItemPageComponent', () => {
 
   describe('when the item failed loading', () => {
     beforeEach(() => {
-      comp.itemRD$ = observableOf(new RemoteData(false, false, false, null, undefined));
+      comp.itemRD$ = createFailedRemoteDataObject$(undefined);
       fixture.detectChanges();
     });
 

src/app/+item-page/simple/item-types/journal-issue/journal-issue.component.spec.ts

@@ -5,9 +5,10 @@ import { PageInfo } from '../../../../core/shared/page-info.model';
 import { createRelationshipsObservable, getItemPageFieldsTest } from '../shared/item.component.spec';
 import { JournalIssueComponent } from './journal-issue.component';
 import { of as observableOf } from 'rxjs';
+import { createSuccessfulRemoteDataObject$ } from '../../../../shared/testing/utils';
 
 const mockItem: Item = Object.assign(new Item(), {
-  bitstreams: observableOf(new RemoteData(false, false, true, null, new PaginatedList(new PageInfo(), []))),
+  bitstreams: createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), [])),
   metadata: {
     'journalissue.identifier.number': [
       {

src/app/+item-page/simple/item-types/journal-volume/journal-volume.component.spec.ts

@@ -5,9 +5,10 @@ import { PageInfo } from '../../../../core/shared/page-info.model';
 import { createRelationshipsObservable, getItemPageFieldsTest } from '../shared/item.component.spec';
 import { JournalVolumeComponent } from './journal-volume.component';
 import { of as observableOf } from 'rxjs';
+import { createSuccessfulRemoteDataObject$ } from '../../../../shared/testing/utils';
 
 const mockItem: Item = Object.assign(new Item(), {
-  bitstreams: observableOf(new RemoteData(false, false, true, null, new PaginatedList(new PageInfo(), []))),
+  bitstreams: createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), [])),
   metadata: {
     'journalvolume.identifier.volume': [
       {

src/app/+item-page/simple/item-types/journal/journal.component.spec.ts

@@ -15,12 +15,13 @@ import { PageInfo } from '../../../../core/shared/page-info.model';
 import { isNotEmpty } from '../../../../shared/empty.util';
 import { JournalComponent } from './journal.component';
 import { of as observableOf } from 'rxjs';
+import { createSuccessfulRemoteDataObject$ } from '../../../../shared/testing/utils';
 
 let comp: JournalComponent;
 let fixture: ComponentFixture<JournalComponent>;
 
 const mockItem: Item = Object.assign(new Item(), {
-  bitstreams: observableOf(new RemoteData(false, false, true, null, new PaginatedList(new PageInfo(), []))),
+  bitstreams: createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), [])),
   metadata: {
     'journal.identifier.issn': [
       {

src/app/+item-page/simple/item-types/orgunit/orgunit.component.spec.ts

@@ -5,9 +5,10 @@ import { PageInfo } from '../../../../core/shared/page-info.model';
 import { createRelationshipsObservable, getItemPageFieldsTest } from '../shared/item.component.spec';
 import { OrgunitComponent } from './orgunit.component';
 import { of as observableOf } from 'rxjs';
+import { createSuccessfulRemoteDataObject$ } from '../../../../shared/testing/utils';
 
 const mockItem: Item = Object.assign(new Item(), {
-  bitstreams: observableOf(new RemoteData(false, false, true, null, new PaginatedList(new PageInfo(), []))),
+  bitstreams: createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), [])),
   metadata: {
     'orgunit.identifier.dateestablished': [
       {

src/app/+item-page/simple/item-types/person/person.component.spec.ts

@@ -5,9 +5,10 @@ import { PageInfo } from '../../../../core/shared/page-info.model';
 import { createRelationshipsObservable, getItemPageFieldsTest } from '../shared/item.component.spec';
 import { PersonComponent } from './person.component';
 import { of as observableOf } from 'rxjs';
+import { createSuccessfulRemoteDataObject$ } from '../../../../shared/testing/utils';
 
 const mockItem: Item = Object.assign(new Item(), {
-  bitstreams: observableOf(new RemoteData(false, false, true, null, new PaginatedList(new PageInfo(), []))),
+  bitstreams: createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), [])),
   metadata: {
     'person.identifier.email': [
       {

src/app/+item-page/simple/item-types/project/project.component.spec.ts

@@ -5,9 +5,10 @@ import { PageInfo } from '../../../../core/shared/page-info.model';
 import { createRelationshipsObservable, getItemPageFieldsTest } from '../shared/item.component.spec';
 import { ProjectComponent } from './project.component';
 import { of as observableOf } from 'rxjs';
+import { createSuccessfulRemoteDataObject$ } from '../../../../shared/testing/utils';
 
 const mockItem: Item = Object.assign(new Item(), {
-  bitstreams: observableOf(new RemoteData(false, false, true, null, new PaginatedList(new PageInfo(), []))),
+  bitstreams: createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), [])),
   metadata: {
     'project.identifier.status': [
       {

src/app/+item-page/simple/item-types/publication/publication.component.spec.ts

@@ -17,9 +17,10 @@ import { createRelationshipsObservable } from '../shared/item.component.spec';
 import { PublicationComponent } from './publication.component';
 import { of as observableOf } from 'rxjs';
 import { MetadataMap } from '../../../../core/shared/metadata.models';
+import { createSuccessfulRemoteDataObject$ } from '../../../../shared/testing/utils';
 
 const mockItem: Item = Object.assign(new Item(), {
-  bitstreams: observableOf(new RemoteData(false, false, true, null, new PaginatedList(new PageInfo(), []))),
+  bitstreams: createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), [])),
   metadata: new MetadataMap(),
   relationships: createRelationshipsObservable()
 });

src/app/+item-page/simple/item-types/shared/item.component.spec.ts

@@ -26,6 +26,7 @@ import { MetadatumRepresentation } from '../../../../core/shared/metadata-repres
 import { ItemMetadataRepresentation } from '../../../../core/shared/metadata-representation/item/item-metadata-representation.model';
 import { MetadataMap, MetadataValue } from '../../../../core/shared/metadata.models';
 import { compareArraysUsing, compareArraysUsingIds } from './item-relationships-utils';
+import { createSuccessfulRemoteDataObject$ } from '../../../../shared/testing/utils';
 
 /**
  * Create a generic test for an item-page-fields component using a mockItem and the type of component
@@ -102,11 +103,11 @@ export function containsFieldInput(fields: DebugElement[], metadataKey: string):
 }
 
 export function createRelationshipsObservable() {
-  return observableOf(new RemoteData(false, false, true, null, new PaginatedList(new PageInfo(), [
+  return createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), [
     Object.assign(new Relationship(), {
-      relationshipType: observableOf(new RemoteData(false, false, true, null, new RelationshipType()))
+      relationshipType: createSuccessfulRemoteDataObject$(new RelationshipType())
     })
-  ])));
+  ]));
 }
 describe('ItemComponent', () => {
   const arr1 = [
@@ -323,15 +324,15 @@ describe('ItemComponent', () => {
       id: '1',
       uuid: '1',
       metadata: new MetadataMap(),
-      relationships: observableOf(new RemoteData(false, false, true, null, new PaginatedList(new PageInfo(), [
+      relationships: createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), [
         Object.assign(new Relationship(), {
           uuid: '123',
           id: '123',
           leftId: '1',
           rightId: '2',
-          relationshipType: observableOf(new RemoteData(false, false, true, null, new RelationshipType()))
+          relationshipType: createSuccessfulRemoteDataObject$(new RelationshipType())
         })
-      ])))
+      ]))
     });
     mockItem.metadata[metadataField] = [
       {
@@ -367,7 +368,7 @@ describe('ItemComponent', () => {
     const mockItemDataService = Object.assign({
       findById: (id) => {
         if (id === relatedItem.id) {
-          return observableOf(new RemoteData(false, false, true, null, relatedItem))
+          return createSuccessfulRemoteDataObject$(relatedItem)
         }
       }
     }) as ItemDataService;

src/app/+item-page/simple/related-items/related-items.component.spec.ts

@@ -8,14 +8,15 @@ import { PageInfo } from '../../../core/shared/page-info.model';
 import { By } from '@angular/platform-browser';
 import { createRelationshipsObservable } from '../item-types/shared/item.component.spec';
 import { of as observableOf } from 'rxjs';
+import { createSuccessfulRemoteDataObject$ } from '../../../shared/testing/utils';
 
 const mockItem1: Item = Object.assign(new Item(), {
-  bitstreams: observableOf(new RemoteData(false, false, true, null, new PaginatedList(new PageInfo(), []))),
+  bitstreams: createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), [])),
   metadata: [],
   relationships: createRelationshipsObservable()
 });
 const mockItem2: Item = Object.assign(new Item(), {
-  bitstreams: observableOf(new RemoteData(false, false, true, null, new PaginatedList(new PageInfo(), []))),
+  bitstreams: createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), [])),
   metadata: [],
   relationships: createRelationshipsObservable()
 });

src/app/+my-dspace-page/my-dspace-page.component.spec.ts

@@ -29,6 +29,7 @@ import { RoleDirective } from '../shared/roles/role.directive';
 import { RoleService } from '../core/roles/role.service';
 import { MockRoleService } from '../shared/mocks/mock-role-service';
 import { SearchFixedFilterService } from '../+search-page/search-filters/search-filter/search-fixed-filter.service';
+import { createSuccessfulRemoteDataObject$ } from '../shared/testing/utils';
 
 describe('MyDSpacePageComponent', () => {
   let comp: MyDSpacePageComponent;
@@ -46,7 +47,7 @@ describe('MyDSpacePageComponent', () => {
   pagination.currentPage = 1;
   pagination.pageSize = 10;
   const sort: SortOptions = new SortOptions('score', SortDirection.DESC);
-  const mockResults = observableOf(new RemoteData(false, false, true, null, ['test', 'data']));
+  const mockResults = createSuccessfulRemoteDataObject$(['test', 'data']);
   const searchServiceStub = jasmine.createSpyObj('SearchService', {
     search: mockResults,
     getSearchLink: '/mydspace',

src/app/+search-page/search-filters/search-filter/search-facet-filter/search-facet-filter.component.spec.ts

@@ -20,6 +20,7 @@ import { RemoteDataBuildService } from '../../../../core/cache/builders/remote-d
 import { SearchConfigurationServiceStub } from '../../../../shared/testing/search-configuration-service-stub';
 import { SEARCH_CONFIG_SERVICE } from '../../../../+my-dspace-page/my-dspace-page.component';
 import { tap } from 'rxjs/operators';
+import { createSuccessfulRemoteDataObject$ } from '../../../../shared/testing/utils';
 
 describe('SearchFacetFilterComponent', () => {
   let comp: SearchFacetFilterComponent;
@@ -61,7 +62,7 @@ describe('SearchFacetFilterComponent', () => {
   let router;
   const page = observableOf(0);
 
-  const mockValues = observableOf(new RemoteData(false, false, true, null, new PaginatedList(new PageInfo(), values)));
+  const mockValues = createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), values));
   beforeEach(async(() => {
     TestBed.configureTestingModule({
       imports: [TranslateModule.forRoot(), NoopAnimationsModule, FormsModule],

src/app/+search-page/search-filters/search-filter/search-range-filter/search-range-filter.component.spec.ts

@@ -20,6 +20,7 @@ import { RouteService } from '../../../../shared/services/route.service';
 import { RemoteDataBuildService } from '../../../../core/cache/builders/remote-data-build.service';
 import { SEARCH_CONFIG_SERVICE } from '../../../../+my-dspace-page/my-dspace-page.component';
 import { SearchConfigurationServiceStub } from '../../../../shared/testing/search-configuration-service-stub';
+import { createSuccessfulRemoteDataObject$ } from '../../../../shared/testing/utils';
 
 describe('SearchRangeFilterComponent', () => {
   let comp: SearchRangeFilterComponent;
@@ -66,7 +67,7 @@ describe('SearchRangeFilterComponent', () => {
   let router;
   const page = observableOf(0);
 
-  const mockValues = observableOf(new RemoteData(false, false, true, null, new PaginatedList(new PageInfo(), values)));
+  const mockValues = createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), values));
   beforeEach(async(() => {
     TestBed.configureTestingModule({
       imports: [TranslateModule.forRoot(), NoopAnimationsModule, FormsModule],

src/app/+search-page/search-page.component.spec.ts

@@ -25,6 +25,7 @@ import { RouteService } from '../shared/services/route.service';
 import { SearchConfigurationServiceStub } from '../shared/testing/search-configuration-service-stub';
 import { PaginatedSearchOptions } from './paginated-search-options.model';
 import { SearchFixedFilterService } from './search-filters/search-filter/search-fixed-filter.service';
+import { createSuccessfulRemoteDataObject$ } from '../shared/testing/utils';
 
 let comp: SearchPageComponent;
 let fixture: ComponentFixture<SearchPageComponent>;
@@ -41,7 +42,7 @@ pagination.id = 'search-results-pagination';
 pagination.currentPage = 1;
 pagination.pageSize = 10;
 const sort: SortOptions = new SortOptions('score', SortDirection.DESC);
-const mockResults = observableOf(new RemoteData(false, false, true, null, ['test', 'data']));
+const mockResults = createSuccessfulRemoteDataObject$(['test', 'data']);
 const searchServiceStub = jasmine.createSpyObj('SearchService', {
   search: mockResults,
   getSearchLink: '/search',

src/app/+search-page/search-service/search-configuration.service.ts

@@ -21,6 +21,7 @@ import { getSucceededRemoteData } from '../../core/shared/operators';
 import { SearchFilter } from '../search-filter.model';
 import { DSpaceObjectType } from '../../core/shared/dspace-object-type.model';
 import { SearchFixedFilterService } from '../search-filters/search-filter/search-fixed-filter.service';
+import { createSuccessfulRemoteDataObject$ } from '../../shared/testing/utils';
 
 /**
  * Service that performs all actions that have to do with the current search configuration
@@ -271,7 +272,7 @@ export class SearchConfigurationService implements OnDestroy {
         scope: this.defaultScope,
         query: this.defaultQuery
       });
-      this._defaults = observableOf(new RemoteData(false, false, true, null, options));
+      this._defaults = createSuccessfulRemoteDataObject$(options);
     }
     return this._defaults;
   }

src/app/+search-page/search-service/search.service.spec.ts

@@ -28,6 +28,7 @@ import { DSpaceObjectDataService } from '../../core/data/dspace-object-data.serv
 import { map } from 'rxjs/operators';
 import { RouteService } from '../../shared/services/route.service';
 import { routeServiceStub } from '../../shared/testing/route-service-stub';
+import { createSuccessfulRemoteDataObject$ } from '../../shared/testing/utils';
 
 @Component({ template: '' })
 class DummyComponent {
@@ -91,7 +92,7 @@ describe('SearchService', () => {
         );
       },
       aggregate: (input: Array<Observable<RemoteData<any>>>): Observable<RemoteData<any[]>> => {
-        return observableOf(new RemoteData(false, false, true, null, []));
+        return createSuccessfulRemoteDataObject$([]);
       }
     };
 

src/app/core/cache/builders/remote-data-build.service.spec.ts

@@ -4,6 +4,7 @@ import { PaginatedList } from '../../data/paginated-list';
 import { PageInfo } from '../../shared/page-info.model';
 import { RemoteData } from '../../data/remote-data';
 import { of as observableOf } from 'rxjs';
+import { createSuccessfulRemoteDataObject } from '../../../shared/testing/utils';
 
 const pageInfo = new PageInfo();
 const array = [
@@ -29,8 +30,8 @@ const array = [
   })
 ];
 const paginatedList = new PaginatedList(pageInfo, array);
-const arrayRD = new RemoteData(false, false, true, undefined, array);
+const arrayRD = createSuccessfulRemoteDataObject(array);
-const paginatedListRD = new RemoteData(false, false, true, undefined, paginatedList);
+const paginatedListRD = createSuccessfulRemoteDataObject(paginatedList);
 
 describe('RemoteDataBuildService', () => {
   let service: RemoteDataBuildService;

src/app/core/cache/builders/remote-data-build.service.ts

@@ -22,6 +22,7 @@ import {
   getResourceLinksFromResponse
 } from '../../shared/operators';
 import { CacheableObject, TypedObject } from '../object-cache.reducer';
+import { createSuccessfulRemoteDataObject$ } from '../../../shared/testing/utils';
 
 @Injectable()
 export class RemoteDataBuildService {
@@ -200,7 +201,7 @@ export class RemoteDataBuildService {
   aggregate<T>(input: Array<Observable<RemoteData<T>>>): Observable<RemoteData<T[]>> {
 
     if (isEmpty(input)) {
-      return observableOf(new RemoteData(false, false, true, null, []));
+      return createSuccessfulRemoteDataObject$([]);
     }
 
     return observableCombineLatest(...input).pipe(

src/app/core/metadata/metadata.service.spec.ts

@@ -38,6 +38,7 @@ import { EmptyError } from 'rxjs/internal-compatibility';
 import { NormalizedObjectBuildService } from '../cache/builders/normalized-object-build.service';
 import { DSOChangeAnalyzer } from '../data/dso-change-analyzer.service';
 import { MetadataValue } from '../shared/metadata.models';
+import { createSuccessfulRemoteDataObject$ } from '../../shared/testing/utils';
 
 /* tslint:disable:max-classes-per-file */
 @Component({
@@ -206,13 +207,7 @@ describe('MetadataService', () => {
   });
 
   const mockRemoteData = (mockItem: Item): Observable<RemoteData<Item>> => {
-    return observableOf(new RemoteData<Item>(
+    return createSuccessfulRemoteDataObject$(MockItem);
-      false,
-      false,
-      true,
-      undefined,
-      MockItem
-    ));
   };
 
   const mockType = (mockItem: Item, type: string): Item => {

src/app/core/registry/registry.service.spec.ts

@@ -42,6 +42,7 @@ import {
 import { ResourceType } from '../shared/resource-type';
 import { MetadataSchema } from '../metadata/metadata-schema.model';
 import { MetadataField } from '../metadata/metadata-field.model';
+import { createSuccessfulRemoteDataObject$ } from '../../shared/testing/utils';
 
 @Component({ template: '' })
 class DummyComponent {
@@ -131,7 +132,7 @@ describe('RegistryService', () => {
       );
     },
     aggregate: (input: Array<Observable<RemoteData<any>>>): Observable<RemoteData<any[]>> => {
-      return observableOf(new RemoteData(false, false, true, null, []));
+      return createSuccessfulRemoteDataObject$([]);
     }
   };
 

src/app/core/shared/item.model.spec.ts

@@ -5,6 +5,7 @@ import { RemoteData } from '../data/remote-data';
 import { Bitstream } from './bitstream.model';
 import { isEmpty } from '../../shared/empty.util';
 import { first, map } from 'rxjs/operators';
+import { createSuccessfulRemoteDataObject$ } from '../../shared/testing/utils';
 
 describe('Item', () => {
 
@@ -32,9 +33,9 @@ describe('Item', () => {
       content: bitstream2Path
     }];
 
-    remoteDataThumbnail = createRemoteDataObject(thumbnail);
+    remoteDataThumbnail = createSuccessfulRemoteDataObject$(thumbnail);
-    remoteDataFiles = createRemoteDataObject(bitstreams);
+    remoteDataFiles = createSuccessfulRemoteDataObject$(bitstreams);
-    remoteDataAll = createRemoteDataObject([...bitstreams, thumbnail]);
+    remoteDataAll = createSuccessfulRemoteDataObject$([...bitstreams, thumbnail]);
 
     // Create Bundles
 
@@ -101,14 +102,3 @@ describe('Item', () => {
   });
 
 });
-
-function createRemoteDataObject(object: any) {
-  return observableOf(new RemoteData(
-    false,
-    false,
-    true,
-    undefined,
-    object
-  ));
-
-}

src/app/core/shared/operators.spec.ts

@@ -18,6 +18,10 @@ import {
 import { RemoteData } from '../data/remote-data';
 import { RemoteDataError } from '../data/remote-data-error';
 import { of as observableOf } from 'rxjs';
+import {
+  createFailedRemoteDataObject,
+  createSuccessfulRemoteDataObject
+} from '../../shared/testing/utils';
 
 describe('Core Module - RxJS Operators', () => {
   let scheduler: TestScheduler;
@@ -180,17 +184,17 @@ describe('Core Module - RxJS Operators', () => {
   describe('getSucceededRemoteData', () => {
     it('should return the first() hasSucceeded RemoteData Observable', () => {
       const testRD = {
-        a: new RemoteData(false, false, true, null, undefined),
+        a: createSuccessfulRemoteDataObject(undefined),
-        b: new RemoteData(false, false, false, null, 'b'),
+        b: createFailedRemoteDataObject( 'b'),
         c: new RemoteData(false, false, undefined, null, 'c'),
-        d: new RemoteData(false, false, true, null, 'd'),
+        d: createSuccessfulRemoteDataObject('d'),
-        e: new RemoteData(false, false, true, null, 'e'),
+        e: createSuccessfulRemoteDataObject('e'),
       };
       const source = hot('abcde', testRD);
       const result = source.pipe(getSucceededRemoteData());
 
       result.subscribe((value) => expect(value)
-        .toEqual(new RemoteData(false, false, true, null, 'd')));
+        .toEqual(createSuccessfulRemoteDataObject('d')));
 
     });
   });
@@ -202,21 +206,21 @@ describe('Core Module - RxJS Operators', () => {
     });
 
     it('should call navigateByUrl to a 404 page, when the remote data contains a 404 error', () => {
-      const testRD = new RemoteData(false, false, false, new RemoteDataError(404, 'Not Found', 'Object was not found'), undefined);
+      const testRD = createFailedRemoteDataObject(undefined, new RemoteDataError(404, 'Not Found', 'Object was not found'));
 
       observableOf(testRD).pipe(redirectToPageNotFoundOn404(router)).subscribe();
       expect(router.navigateByUrl).toHaveBeenCalledWith('/404', { skipLocationChange: true });
     });
 
     it('should not call navigateByUrl to a 404 page, when the remote data contains another error than a 404', () => {
-      const testRD = new RemoteData(false, false, false, new RemoteDataError(500, 'Server Error', 'Something went wrong'), undefined);
+      const testRD = createFailedRemoteDataObject(undefined, new RemoteDataError(500, 'Server Error', 'Something went wrong'));
 
       observableOf(testRD).pipe(redirectToPageNotFoundOn404(router)).subscribe();
       expect(router.navigateByUrl).not.toHaveBeenCalled();
     });
 
     it('should not call navigateByUrl to a 404 page, when the remote data contains no error', () => {
-      const testRD = new RemoteData(false, false, true, null, undefined);
+      const testRD = createSuccessfulRemoteDataObject(undefined);
 
       observableOf(testRD).pipe(redirectToPageNotFoundOn404(router)).subscribe();
       expect(router.navigateByUrl).not.toHaveBeenCalled();
@@ -242,11 +246,11 @@ describe('Core Module - RxJS Operators', () => {
   describe('getAllSucceededRemoteData', () => {
     it('should return all hasSucceeded RemoteData Observables', () => {
       const testRD = {
-        a: new RemoteData(false, false, true, null, undefined),
+        a: createSuccessfulRemoteDataObject(undefined),
-        b: new RemoteData(false, false, false, null, 'b'),
+        b: createFailedRemoteDataObject('b'),
         c: new RemoteData(false, false, undefined, null, 'c'),
-        d: new RemoteData(false, false, true, null, 'd'),
+        d: createSuccessfulRemoteDataObject('d'),
-        e: new RemoteData(false, false, true, null, 'e'),
+        e: createSuccessfulRemoteDataObject('e'),
       };
       const source = hot('abcde', testRD);
       const result = source.pipe(getAllSucceededRemoteData());

src/app/shared/browse-by/browse-by.component.spec.ts

@@ -17,6 +17,7 @@ import { RouterTestingModule } from '@angular/router/testing';
 import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
 import { PaginationComponentOptions } from '../pagination/pagination-component-options.model';
 import { SortDirection, SortOptions } from '../../core/cache/models/sort-options.model';
+import { createSuccessfulRemoteDataObject$ } from '../testing/utils';
 
 describe('BrowseByComponent', () => {
   let comp: BrowseByComponent;
@@ -42,7 +43,7 @@ describe('BrowseByComponent', () => {
       ]
     })
   ];
-  const mockItemsRD$ = observableOf(new RemoteData(false, false, true, null, new PaginatedList(new PageInfo(), mockItems)));
+  const mockItemsRD$ = createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), mockItems));
 
   beforeEach(async(() => {
     TestBed.configureTestingModule({

src/app/shared/comcol-forms/create-comcol-page/create-comcol-page.component.spec.ts

@@ -4,7 +4,6 @@ import { RouteService } from '../../services/route.service';
 import { Router } from '@angular/router';
 import { TranslateModule } from '@ngx-translate/core';
 import { of as observableOf } from 'rxjs';
-import { RemoteData } from '../../../core/data/remote-data';
 import { Community } from '../../../core/shared/community.model';
 import { SharedModule } from '../../shared.module';
 import { CommonModule } from '@angular/common';
@@ -13,6 +12,10 @@ import { NO_ERRORS_SCHEMA } from '@angular/core';
 import { DSpaceObject } from '../../../core/shared/dspace-object.model';
 import { CreateComColPageComponent } from './create-comcol-page.component';
 import { DataService } from '../../../core/data/data.service';
+import {
+  createFailedRemoteDataObject$,
+  createSuccessfulRemoteDataObject$
+} from '../../testing/utils';
 
 describe('CreateComColPageComponent', () => {
   let comp: CreateComColPageComponent<DSpaceObject>;
@@ -46,14 +49,14 @@ describe('CreateComColPageComponent', () => {
     });
 
     communityDataServiceStub = {
-      findById: (uuid) => observableOf(new RemoteData(false, false, true, null, Object.assign(new Community(), {
+      findById: (uuid) => createSuccessfulRemoteDataObject$(Object.assign(new Community(), {
         uuid: uuid,
         metadata: [{
           key: 'dc.title',
           value: community.name
         }]
-      }))),
+      })),
-      create: (com, uuid?) => observableOf(new RemoteData(false, false, true, undefined, newCommunity))
+      create: (com, uuid?) => createSuccessfulRemoteDataObject$(newCommunity)
 
     };
 
@@ -109,7 +112,7 @@ describe('CreateComColPageComponent', () => {
 
     it('should not navigate on failure', () => {
       spyOn(router, 'navigate');
-      spyOn(dsoDataService, 'create').and.returnValue(observableOf(new RemoteData(true, true, false, undefined, newCommunity)));
+      spyOn(dsoDataService, 'create').and.returnValue(createFailedRemoteDataObject$(newCommunity));
       comp.onSubmit(data);
       fixture.detectChanges();
       expect(router.navigate).not.toHaveBeenCalled();

src/app/shared/comcol-forms/edit-comcol-page/edit-comcol-page.component.spec.ts

@@ -3,7 +3,6 @@ import { CommunityDataService } from '../../../core/data/community-data.service'
 import { ActivatedRoute, Router } from '@angular/router';
 import { TranslateModule } from '@ngx-translate/core';
 import { of as observableOf } from 'rxjs';
-import { RemoteData } from '../../../core/data/remote-data';
 import { Community } from '../../../core/shared/community.model';
 import { SharedModule } from '../../shared.module';
 import { CommonModule } from '@angular/common';
@@ -12,6 +11,10 @@ import { NO_ERRORS_SCHEMA } from '@angular/core';
 import { DSpaceObject } from '../../../core/shared/dspace-object.model';
 import { EditComColPageComponent } from './edit-comcol-page.component';
 import { DataService } from '../../../core/data/data.service';
+import {
+  createFailedRemoteDataObject$,
+  createSuccessfulRemoteDataObject$
+} from '../../testing/utils';
 
 describe('EditComColPageComponent', () => {
   let comp: EditComColPageComponent<DSpaceObject>;
@@ -43,7 +46,7 @@ describe('EditComColPageComponent', () => {
     });
 
     communityDataServiceStub = {
-      update: (com, uuid?) => observableOf(new RemoteData(false, false, true, undefined, newCommunity))
+      update: (com, uuid?) => createSuccessfulRemoteDataObject$(newCommunity)
 
     };
 
@@ -97,7 +100,7 @@ describe('EditComColPageComponent', () => {
 
     it('should not navigate on failure', () => {
       spyOn(router, 'navigate');
-      spyOn(dsoDataService, 'update').and.returnValue(observableOf(new RemoteData(true, true, false, undefined, newCommunity)));
+      spyOn(dsoDataService, 'update').and.returnValue(createFailedRemoteDataObject$(newCommunity));
       comp.onSubmit(data);
       fixture.detectChanges();
       expect(router.navigate).not.toHaveBeenCalled();

src/app/shared/dso-selector/dso-selector/dso-selector.component.spec.ts

@@ -11,6 +11,7 @@ import { Item } from '../../../core/shared/item.model';
 import { of as observableOf } from 'rxjs';
 import { PaginatedList } from '../../../core/data/paginated-list';
 import { MetadataValue } from '../../../core/shared/metadata.models';
+import { createSuccessfulRemoteDataObject$ } from '../../testing/utils';
 
 describe('DSOSelectorComponent', () => {
   let component: DSOSelectorComponent;
@@ -30,7 +31,7 @@ describe('DSOSelectorComponent', () => {
   searchResult.indexableObject = item;
   searchResult.hitHighlights = {};
   const searchService = jasmine.createSpyObj('searchService', {
-    search: observableOf(new RemoteData(false, false, true, undefined, new PaginatedList(undefined, [searchResult])))
+    search: createSuccessfulRemoteDataObject$(new PaginatedList(undefined, [searchResult]))
   });
 
   beforeEach(async(() => {

src/app/shared/dso-selector/modal-wrappers/create-collection-parent-selector/create-collection-parent-selector.component.spec.ts

@@ -10,6 +10,7 @@ import * as collectionRouter from '../../../../+collection-page/collection-page-
 import { Community } from '../../../../core/shared/community.model';
 import { CreateCollectionParentSelectorComponent } from './create-collection-parent-selector.component';
 import { MetadataValue } from '../../../../core/shared/metadata.models';
+import { createSuccessfulRemoteDataObject } from '../../../testing/utils';
 
 describe('CreateCollectionParentSelectorComponent', () => {
   let component: CreateCollectionParentSelectorComponent;
@@ -26,7 +27,7 @@ describe('CreateCollectionParentSelectorComponent', () => {
     })]
   };
   const router = new RouterStub();
-  const communityRD = new RemoteData(false, false, true, undefined, community);
+  const communityRD = createSuccessfulRemoteDataObject(community);
   const modalStub = jasmine.createSpyObj('modalStub', ['close']);
   const createPath = 'testCreatePath';
 

src/app/shared/dso-selector/modal-wrappers/create-community-parent-selector/create-community-parent-selector.component.spec.ts

@@ -10,6 +10,7 @@ import * as communityRouter from '../../../../+community-page/community-page-rou
 import { Community } from '../../../../core/shared/community.model';
 import { CreateCommunityParentSelectorComponent } from './create-community-parent-selector.component';
 import { MetadataValue } from '../../../../core/shared/metadata.models';
+import { createSuccessfulRemoteDataObject } from '../../../testing/utils';
 
 describe('CreateCommunityParentSelectorComponent', () => {
   let component: CreateCommunityParentSelectorComponent;
@@ -20,7 +21,7 @@ describe('CreateCommunityParentSelectorComponent', () => {
   community.uuid = '1234-1234-1234-1234';
   community.metadata = { 'dc.title': [Object.assign(new MetadataValue(), { value: 'Community title', language: undefined })] };
   const router = new RouterStub();
-  const communityRD = new RemoteData(false, false, true, undefined, community);
+  const communityRD = createSuccessfulRemoteDataObject(community);
   const modalStub = jasmine.createSpyObj('modalStub', ['close']);
   const createPath = 'testCreatePath';
 

src/app/shared/dso-selector/modal-wrappers/create-item-parent-selector/create-item-parent-selector.component.spec.ts

@@ -9,6 +9,7 @@ import { RouterStub } from '../../../testing/router-stub';
 import { Collection } from '../../../../core/shared/collection.model';
 import { CreateItemParentSelectorComponent } from './create-item-parent-selector.component';
 import { MetadataValue } from '../../../../core/shared/metadata.models';
+import { createSuccessfulRemoteDataObject } from '../../../testing/utils';
 
 describe('CreateItemParentSelectorComponent', () => {
   let component: CreateItemParentSelectorComponent;
@@ -19,7 +20,7 @@ describe('CreateItemParentSelectorComponent', () => {
   collection.uuid = '1234-1234-1234-1234';
   collection.metadata = { 'dc.title': [Object.assign(new MetadataValue(), { value: 'Collection title', language: undefined })] };
   const router = new RouterStub();
-  const collectionRD = new RemoteData(false, false, true, undefined, collection);
+  const collectionRD = createSuccessfulRemoteDataObject(collection);
   const modalStub = jasmine.createSpyObj('modalStub', ['close']);
   const createPath = 'testCreatePath';
 

src/app/shared/dso-selector/modal-wrappers/dso-selector-modal-wrapper.component.spec.ts

@@ -14,6 +14,7 @@ import { By } from '@angular/platform-browser';
 import { DSOSelectorComponent } from '../dso-selector/dso-selector.component';
 import { MockComponent } from 'ng-mocks';
 import { MetadataValue } from '../../../core/shared/metadata.models';
+import { createSuccessfulRemoteDataObject } from '../../testing/utils';
 
 describe('DSOSelectorModalWrapperComponent', () => {
   let component: DSOSelectorModalWrapperComponent;
@@ -29,7 +30,7 @@ describe('DSOSelectorModalWrapperComponent', () => {
     })]
   };
 
-  const itemRD = new RemoteData(false, false, true, undefined, item);
+  const itemRD = createSuccessfulRemoteDataObject(item);
   const modalStub = jasmine.createSpyObj('modalStub', ['close']);
 
   beforeEach(async(() => {

src/app/shared/dso-selector/modal-wrappers/edit-collection-selector/edit-collection-selector.component.spec.ts

@@ -10,6 +10,7 @@ import * as collectionRouter from '../../../../+collection-page/collection-page-
 import { EditCollectionSelectorComponent } from './edit-collection-selector.component';
 import { Collection } from '../../../../core/shared/collection.model';
 import { MetadataValue } from '../../../../core/shared/metadata.models';
+import { createSuccessfulRemoteDataObject } from '../../../testing/utils';
 
 describe('EditCollectionSelectorComponent', () => {
   let component: EditCollectionSelectorComponent;
@@ -20,7 +21,7 @@ describe('EditCollectionSelectorComponent', () => {
   collection.uuid = '1234-1234-1234-1234';
   collection.metadata = { 'dc.title': [Object.assign(new MetadataValue(), { value: 'Collection title', language: undefined })] };
   const router = new RouterStub();
-  const collectionRD = new RemoteData(false, false, true, undefined, collection);
+  const collectionRD = createSuccessfulRemoteDataObject(collection);
   const modalStub = jasmine.createSpyObj('modalStub', ['close']);
   const editPath = 'testEditPath';
 

src/app/shared/dso-selector/modal-wrappers/edit-community-selector/edit-community-selector.component.spec.ts

@@ -10,6 +10,7 @@ import * as communityRouter from '../../../../+community-page/community-page-rou
 import { EditCommunitySelectorComponent } from './edit-community-selector.component';
 import { Community } from '../../../../core/shared/community.model';
 import { MetadataValue } from '../../../../core/shared/metadata.models';
+import { createSuccessfulRemoteDataObject } from '../../../testing/utils';
 
 describe('EditCommunitySelectorComponent', () => {
   let component: EditCommunitySelectorComponent;
@@ -20,7 +21,7 @@ describe('EditCommunitySelectorComponent', () => {
   community.uuid = '1234-1234-1234-1234';
   community.metadata = { 'dc.title': [Object.assign(new MetadataValue(), { value: 'Community title', language: undefined })] };
   const router = new RouterStub();
-  const communityRD = new RemoteData(false, false, true, undefined, community);
+  const communityRD = createSuccessfulRemoteDataObject(community);
   const modalStub = jasmine.createSpyObj('modalStub', ['close']);
   const editPath = 'testEditPath';
 

src/app/shared/dso-selector/modal-wrappers/edit-item-selector/edit-item-selector.component.spec.ts

@@ -10,6 +10,7 @@ import { RemoteData } from '../../../../core/data/remote-data';
 import { RouterStub } from '../../../testing/router-stub';
 import * as itemRouter from '../../../../+item-page/item-page-routing.module';
 import { MetadataValue } from '../../../../core/shared/metadata.models';
+import { createSuccessfulRemoteDataObject } from '../../../testing/utils';
 
 describe('EditItemSelectorComponent', () => {
   let component: EditItemSelectorComponent;
@@ -20,7 +21,7 @@ describe('EditItemSelectorComponent', () => {
   item.uuid = '1234-1234-1234-1234';
   item.metadata = { 'dc.title': [Object.assign(new MetadataValue(), { value: 'Item title', language: undefined })] };
   const router = new RouterStub();
-  const itemRD = new RemoteData(false, false, true, undefined, item);
+  const itemRD = createSuccessfulRemoteDataObject(item);
   const modalStub = jasmine.createSpyObj('modalStub', ['close']);
   const editPath = 'testEditPath';
 

src/app/shared/items/switcher/item-type-switcher.component.spec.ts

@@ -10,10 +10,11 @@ import * as decorator from '../item-type-decorator';
 import { getComponentByItemType, ItemViewMode } from '../item-type-decorator';
 import { ItemMetadataRepresentation } from '../../../core/shared/metadata-representation/item/item-metadata-representation.model';
 import createSpy = jasmine.createSpy;
+import { createSuccessfulRemoteDataObject$ } from '../../testing/utils';
 
 const relationType = 'type';
 const mockItem: Item = Object.assign(new Item(), {
-  bitstreams: observableOf(new RemoteData(false, false, true, null, new PaginatedList(new PageInfo(), []))),
+  bitstreams: createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), [])),
   metadata: {
     'dc.title': [
       {

src/app/shared/mocks/mock-remote-data-build.service.ts

@@ -5,6 +5,7 @@ import { RemoteData } from '../../core/data/remote-data';
 import { RequestEntry } from '../../core/data/request.reducer';
 import { hasValue } from '../empty.util';
 import { NormalizedObject } from '../../core/cache/models/normalized-object.model';
+import { createSuccessfulRemoteDataObject$ } from '../testing/utils';
 
 export function getMockRemoteDataBuildService(toRemoteDataObservable$?: Observable<RemoteData<any>>): RemoteDataBuildService {
   return {
@@ -18,7 +19,7 @@ export function getMockRemoteDataBuildService(toRemoteDataObservable$?: Observab
         } as RemoteData<any>)))
       }
     },
-    buildSingle: (href$: string | Observable<string>) => observableOf(new RemoteData(false, false, true, undefined, {})),
+    buildSingle: (href$: string | Observable<string>) => createSuccessfulRemoteDataObject$({}),
     build: (normalized: NormalizedObject<any>) => Object.create({})
   } as RemoteDataBuildService;
 

src/app/shared/mydspace-actions/claimed-task/claimed-task-actions.component.spec.ts

@@ -17,6 +17,7 @@ import { ClaimedTaskDataService } from '../../../core/tasks/claimed-task-data.se
 import { ClaimedTaskActionsComponent } from './claimed-task-actions.component';
 import { ClaimedTask } from '../../../core/tasks/models/claimed-task-object.model';
 import { WorkflowItem } from '../../../core/submission/models/workflowitem.model';
+import { createSuccessfulRemoteDataObject } from '../../testing/utils';
 
 let component: ClaimedTaskActionsComponent;
 let fixture: ComponentFixture<ClaimedTaskActionsComponent>;
@@ -60,9 +61,9 @@ const item = Object.assign(new Item(), {
     ]
   }
 });
-const rdItem = new RemoteData(false, false, true, null, item);
+const rdItem = createSuccessfulRemoteDataObject(item);
 const workflowitem = Object.assign(new WorkflowItem(), { item: observableOf(rdItem) });
-const rdWorkflowitem = new RemoteData(false, false, true, null, workflowitem);
+const rdWorkflowitem = createSuccessfulRemoteDataObject(workflowitem);
 mockObject = Object.assign(new ClaimedTask(), { workflowitem: observableOf(rdWorkflowitem), id: '1234' });
 
 describe('ClaimedTaskActionsComponent', () => {

src/app/shared/mydspace-actions/pool-task/pool-task-actions.component.spec.ts

@@ -17,6 +17,7 @@ import { PoolTaskDataService } from '../../../core/tasks/pool-task-data.service'
 import { PoolTaskActionsComponent } from './pool-task-actions.component';
 import { PoolTask } from '../../../core/tasks/models/pool-task-object.model';
 import { WorkflowItem } from '../../../core/submission/models/workflowitem.model';
+import { createSuccessfulRemoteDataObject } from '../../testing/utils';
 
 let component: PoolTaskActionsComponent;
 let fixture: ComponentFixture<PoolTaskActionsComponent>;
@@ -58,9 +59,9 @@ const item = Object.assign(new Item(), {
     ]
   }
 });
-const rdItem = new RemoteData(false, false, true, null, item);
+const rdItem = createSuccessfulRemoteDataObject(item);
 const workflowitem = Object.assign(new WorkflowItem(), { item: observableOf(rdItem) });
-const rdWorkflowitem = new RemoteData(false, false, true, null, workflowitem);
+const rdWorkflowitem = createSuccessfulRemoteDataObject(workflowitem);
 mockObject = Object.assign(new PoolTask(), { workflowitem: observableOf(rdWorkflowitem), id: '1234' });
 
 describe('PoolTaskActionsComponent', () => {

src/app/shared/mydspace-actions/workflowitem/workflowitem-actions.component.spec.ts

@@ -14,6 +14,7 @@ import { WorkflowitemActionsComponent } from './workflowitem-actions.component';
 import { WorkflowItemDataService } from '../../../core/submission/workflowitem-data.service';
 import { NotificationsService } from '../../notifications/notifications.service';
 import { NotificationsServiceStub } from '../../testing/notifications-service-stub';
+import { createSuccessfulRemoteDataObject } from '../../testing/utils';
 
 let component: WorkflowitemActionsComponent;
 let fixture: ComponentFixture<WorkflowitemActionsComponent>;
@@ -51,7 +52,7 @@ const item = Object.assign(new Item(), {
     ]
   }
 });
-const rd = new RemoteData(false, false, true, null, item);
+const rd = createSuccessfulRemoteDataObject(item);
 mockObject = Object.assign(new WorkflowItem(), { item: observableOf(rd), id: '1234', uuid: '1234' });
 
 describe('WorkflowitemActionsComponent', () => {

src/app/shared/mydspace-actions/workspaceitem/workspaceitem-actions.component.spec.ts

@@ -16,6 +16,7 @@ import { Item } from '../../../core/shared/item.model';
 import { WorkspaceItem } from '../../../core/submission/models/workspaceitem.model';
 import { WorkspaceitemActionsComponent } from './workspaceitem-actions.component';
 import { WorkspaceitemDataService } from '../../../core/submission/workspaceitem-data.service';
+import { createSuccessfulRemoteDataObject } from '../../testing/utils';
 
 let component: WorkspaceitemActionsComponent;
 let fixture: ComponentFixture<WorkspaceitemActionsComponent>;
@@ -56,7 +57,7 @@ const item = Object.assign(new Item(), {
     ]
   }
 });
-const rd = new RemoteData(false, false, true, null, item);
+const rd = createSuccessfulRemoteDataObject(item);
 mockObject = Object.assign(new WorkspaceItem(), { item: observableOf(rd), id: '1234', uuid: '1234' });
 
 describe('WorkspaceitemActionsComponent', () => {

src/app/shared/object-collection/shared/mydspace-item-status/my-dspace-item-status.component.spec.ts

@@ -13,15 +13,16 @@ import { MyDSpaceItemStatusComponent } from './my-dspace-item-status.component';
 import { MyDspaceItemStatusType } from './my-dspace-item-status-type';
 import { MockTranslateLoader } from '../../../mocks/mock-translate-loader';
 import { By } from '@angular/platform-browser';
+import { createSuccessfulRemoteDataObject } from '../../../testing/utils';
 
 let component: MyDSpaceItemStatusComponent;
 let fixture: ComponentFixture<MyDSpaceItemStatusComponent>;
 
 let mockResultObject: PoolTask;
 
-const rdSumbitter = new RemoteData(false, false, true, null, EPersonMock);
+const rdSumbitter = createSuccessfulRemoteDataObject(EPersonMock);
 const workflowitem = Object.assign(new WorkflowItem(), { submitter: observableOf(rdSumbitter) });
-const rdWorkflowitem = new RemoteData(false, false, true, null, workflowitem);
+const rdWorkflowitem = createSuccessfulRemoteDataObject(workflowitem);
 mockResultObject = Object.assign(new PoolTask(), { workflowitem: observableOf(rdWorkflowitem) });
 
 describe('MyDSpaceItemStatusComponent', () => {

src/app/shared/object-collection/shared/mydspace-item-submitter/item-submitter.component.spec.ts

@@ -12,6 +12,7 @@ import { PoolTask } from '../../../../core/tasks/models/pool-task-object.model';
 import { EPersonMock } from '../../../testing/eperson-mock';
 import { MockTranslateLoader } from '../../../mocks/mock-translate-loader';
 import { By } from '@angular/platform-browser';
+import { createSuccessfulRemoteDataObject } from '../../../testing/utils';
 
 let component: ItemSubmitterComponent;
 let fixture: ComponentFixture<ItemSubmitterComponent>;
@@ -20,9 +21,9 @@ const compIndex = 1;
 
 let mockResultObject: PoolTask;
 
-const rdSumbitter = new RemoteData(false, false, true, null, EPersonMock);
+const rdSumbitter = createSuccessfulRemoteDataObject(EPersonMock);
 const workflowitem = Object.assign(new WorkflowItem(), { submitter: observableOf(rdSumbitter) });
-const rdWorkflowitem = new RemoteData(false, false, true, null, workflowitem);
+const rdWorkflowitem = createSuccessfulRemoteDataObject(workflowitem);
 mockResultObject = Object.assign(new PoolTask(), { workflowitem: observableOf(rdWorkflowitem) });
 
 describe('ItemSubmitterComponent', () => {

src/app/shared/object-detail/my-dspace-result-detail-element/claimed-my-dspace-result/claimed-my-dspace-result-detail-element.component.spec.ts

@@ -11,6 +11,7 @@ import { ClaimedTask } from '../../../../core/tasks/models/claimed-task-object.m
 import { RemoteData } from '../../../../core/data/remote-data';
 import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
 import { WorkflowItem } from '../../../../core/submission/models/workflowitem.model';
+import { createSuccessfulRemoteDataObject } from '../../../testing/utils';
 
 let component: ClaimedMyDSpaceResultDetailElementComponent;
 let fixture: ComponentFixture<ClaimedMyDSpaceResultDetailElementComponent>;
@@ -49,9 +50,9 @@ const item = Object.assign(new Item(), {
     ]
   }
 });
-const rdItem = new RemoteData(false, false, true, null, item);
+const rdItem = createSuccessfulRemoteDataObject(item);
 const workflowitem = Object.assign(new WorkflowItem(), { item: observableOf(rdItem) });
-const rdWorkflowitem = new RemoteData(false, false, true, null, workflowitem);
+const rdWorkflowitem = createSuccessfulRemoteDataObject(workflowitem);
 mockResultObject.indexableObject = Object.assign(new ClaimedTask(), { workflowitem: observableOf(rdWorkflowitem) });
 
 describe('ClaimedMyDSpaceResultDetailElementComponent', () => {

src/app/shared/object-detail/my-dspace-result-detail-element/pool-my-dspace-result/pool-my-dspace-result-detail-element.component.spec.ts

@@ -11,6 +11,7 @@ import { PoolTask } from '../../../../core/tasks/models/pool-task-object.model';
 import { RemoteData } from '../../../../core/data/remote-data';
 import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
 import { WorkflowItem } from '../../../../core/submission/models/workflowitem.model';
+import { createSuccessfulRemoteDataObject } from '../../../testing/utils';
 
 let component: PoolMyDSpaceResultDetailElementComponent;
 let fixture: ComponentFixture<PoolMyDSpaceResultDetailElementComponent>;
@@ -49,9 +50,9 @@ const item = Object.assign(new Item(), {
     ]
   }
 });
-const rdItem = new RemoteData(false, false, true, null, item);
+const rdItem = createSuccessfulRemoteDataObject(item);
 const workflowitem = Object.assign(new WorkflowItem(), { item: observableOf(rdItem) });
-const rdWorkflowitem = new RemoteData(false, false, true, null, workflowitem);
+const rdWorkflowitem = createSuccessfulRemoteDataObject(workflowitem);
 mockResultObject.indexableObject = Object.assign(new PoolTask(), { workflowitem: observableOf(rdWorkflowitem) });
 
 describe('PoolMyDSpaceResultDetailElementComponent', () => {

src/app/shared/object-detail/my-dspace-result-detail-element/workflowitem-my-dspace-result/workflowitem-my-dspace-result-detail-element.component.spec.ts

@@ -10,6 +10,7 @@ import { WorkflowitemMyDSpaceResult } from '../../../object-collection/shared/wo
 import { WorkflowItem } from '../../../../core/submission/models/workflowitem.model';
 import { RemoteData } from '../../../../core/data/remote-data';
 import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
+import { createSuccessfulRemoteDataObject } from '../../../testing/utils';
 
 let component: WorkflowitemMyDSpaceResultDetailElementComponent;
 let fixture: ComponentFixture<WorkflowitemMyDSpaceResultDetailElementComponent>;
@@ -48,7 +49,7 @@ const item = Object.assign(new Item(), {
     ]
   }
 });
-const rd = new RemoteData(false, false, true, null, item);
+const rd = createSuccessfulRemoteDataObject(item);
 mockResultObject.indexableObject = Object.assign(new WorkflowItem(), { item: observableOf(rd) });
 
 describe('WorkflowitemMyDSpaceResultDetailElementComponent', () => {

src/app/shared/object-detail/my-dspace-result-detail-element/workspaceitem-my-dspace-result/workspaceitem-my-dspace-result-detail-element.component.spec.ts

@@ -10,6 +10,7 @@ import { WorkspaceitemMyDSpaceResult } from '../../../object-collection/shared/w
 import { WorkspaceItem } from '../../../../core/submission/models/workspaceitem.model';
 import { RemoteData } from '../../../../core/data/remote-data';
 import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
+import { createSuccessfulRemoteDataObject } from '../../../testing/utils';
 
 let component: WorkspaceitemMyDSpaceResultDetailElementComponent;
 let fixture: ComponentFixture<WorkspaceitemMyDSpaceResultDetailElementComponent>;
@@ -48,7 +49,7 @@ const item = Object.assign(new Item(), {
     ]
   }
 });
-const rd = new RemoteData(false, false, true, null, item);
+const rd = createSuccessfulRemoteDataObject(item);
 mockResultObject.indexableObject = Object.assign(new WorkspaceItem(), { item: observableOf(rd) });
 
 describe('WorkspaceitemMyDSpaceResultDetailElementComponent', () => {

src/app/shared/object-detail/object-detail.component.spec.ts

@@ -8,6 +8,7 @@ import { RemoteData } from '../../core/data/remote-data';
 import { PaginatedList } from '../../core/data/paginated-list';
 import { PageInfo } from '../../core/shared/page-info.model';
 import { NoopAnimationsModule } from '@angular/platform-browser/animations';
+import { createSuccessfulRemoteDataObject } from '../testing/utils';
 
 describe('ObjectDetailComponent', () => {
   let comp: ObjectDetailComponent;
@@ -27,7 +28,7 @@ describe('ObjectDetailComponent', () => {
     { ten: 10 }
   ];
   const pageInfo = Object.assign(new PageInfo(), {elementsPerPage: 1, totalElements: 10, totalPages: 10, currentPage: 1})
-  const mockRD = new RemoteData(false, false, true, null, new PaginatedList(pageInfo, testObjects));
+  const mockRD = createSuccessfulRemoteDataObject(new PaginatedList(pageInfo, testObjects));
 
   beforeEach(async(() => {
     TestBed.configureTestingModule({

src/app/shared/object-list/item-list-element/item-list-element.component.spec.ts

@@ -8,9 +8,10 @@ import { PageInfo } from '../../../core/shared/page-info.model';
 import { By } from '@angular/platform-browser';
 import { createRelationshipsObservable } from '../../../+item-page/simple/item-types/shared/item.component.spec';
 import { of as observableOf } from 'rxjs';
+import { createSuccessfulRemoteDataObject$ } from '../../testing/utils';
 
 const mockItem: Item = Object.assign(new Item(), {
-  bitstreams: observableOf(new RemoteData(false, false, true, null, new PaginatedList(new PageInfo(), []))),
+  bitstreams: createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), [])),
   metadata: [],
   relationships: createRelationshipsObservable()
 });

src/app/shared/object-list/item-list-element/item-types/typed-item-search-result-list-element.component.spec.ts

@@ -12,9 +12,10 @@ import { ItemSearchResult } from '../../../object-collection/shared/item-search-
 import { createRelationshipsObservable } from '../../../../+item-page/simple/item-types/shared/item.component.spec';
 import { of as observableOf } from 'rxjs';
 import { MetadataMap } from '../../../../core/shared/metadata.models';
+import { createSuccessfulRemoteDataObject$ } from '../../../testing/utils';
 
 const mockItem: Item = Object.assign(new Item(), {
-  bitstreams: observableOf(new RemoteData(false, false, true, null, new PaginatedList(new PageInfo(), []))),
+  bitstreams: createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), [])),
   metadata: [],
   relationships: createRelationshipsObservable()
 });

src/app/shared/object-list/my-dspace-result-list-element/claimed-my-dspace-result/claimed-my-dspace-result-list-element.component.spec.ts

@@ -11,6 +11,7 @@ import { ClaimedTask } from '../../../../core/tasks/models/claimed-task-object.m
 import { RemoteData } from '../../../../core/data/remote-data';
 import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
 import { WorkflowItem } from '../../../../core/submission/models/workflowitem.model';
+import { createSuccessfulRemoteDataObject } from '../../../testing/utils';
 
 let component: ClaimedMyDSpaceResultListElementComponent;
 let fixture: ComponentFixture<ClaimedMyDSpaceResultListElementComponent>;
@@ -49,9 +50,9 @@ const item = Object.assign(new Item(), {
     ]
   }
 });
-const rdItem = new RemoteData(false, false, true, null, item);
+const rdItem = createSuccessfulRemoteDataObject(item);
 const workflowitem = Object.assign(new WorkflowItem(), { item: observableOf(rdItem) });
-const rdWorkflowitem = new RemoteData(false, false, true, null, workflowitem);
+const rdWorkflowitem = createSuccessfulRemoteDataObject(workflowitem);
 mockResultObject.indexableObject = Object.assign(new ClaimedTask(), { workflowitem: observableOf(rdWorkflowitem) });
 
 describe('ClaimedMyDSpaceResultListElementComponent', () => {

src/app/shared/object-list/my-dspace-result-list-element/pool-my-dspace-result/pool-my-dspace-result-list-element.component.spec.ts

@@ -11,6 +11,7 @@ import { PoolTask } from '../../../../core/tasks/models/pool-task-object.model';
 import { RemoteData } from '../../../../core/data/remote-data';
 import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
 import { WorkflowItem } from '../../../../core/submission/models/workflowitem.model';
+import { createSuccessfulRemoteDataObject } from '../../../testing/utils';
 
 let component: PoolMyDSpaceResultListElementComponent;
 let fixture: ComponentFixture<PoolMyDSpaceResultListElementComponent>;
@@ -49,9 +50,9 @@ const item = Object.assign(new Item(), {
     ]
   }
 });
-const rdItem = new RemoteData(false, false, true, null, item);
+const rdItem = createSuccessfulRemoteDataObject(item);
 const workflowitem = Object.assign(new WorkflowItem(), { item: observableOf(rdItem) });
-const rdWorkflowitem = new RemoteData(false, false, true, null, workflowitem);
+const rdWorkflowitem = createSuccessfulRemoteDataObject(workflowitem);
 mockResultObject.indexableObject = Object.assign(new PoolTask(), { workflowitem: observableOf(rdWorkflowitem) });
 
 describe('PoolMyDSpaceResultListElementComponent', () => {

src/app/shared/object-list/my-dspace-result-list-element/workflowitem-my-dspace-result/workflowitem-my-dspace-result-list-element.component.spec.ts

@@ -10,6 +10,7 @@ import { WorkflowitemMyDSpaceResult } from '../../../object-collection/shared/wo
 import { WorkflowItem } from '../../../../core/submission/models/workflowitem.model';
 import { RemoteData } from '../../../../core/data/remote-data';
 import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
+import { createSuccessfulRemoteDataObject } from '../../../testing/utils';
 
 let component: WorkflowitemMyDSpaceResultListElementComponent;
 let fixture: ComponentFixture<WorkflowitemMyDSpaceResultListElementComponent>;
@@ -48,7 +49,7 @@ const item = Object.assign(new Item(), {
     ]
   }
 });
-const rd = new RemoteData(false, false, true, null, item);
+const rd = createSuccessfulRemoteDataObject(item);
 mockResultObject.indexableObject = Object.assign(new WorkflowItem(), { item: observableOf(rd) });
 
 describe('WorkflowitemMyDSpaceResultListElementComponent', () => {

src/app/shared/object-list/my-dspace-result-list-element/workspaceitem-my-dspace-result/workspaceitem-my-dspace-result-list-element.component.spec.ts

@@ -10,6 +10,7 @@ import { WorkspaceitemMyDSpaceResult } from '../../../object-collection/shared/w
 import { WorkspaceItem } from '../../../../core/submission/models/workspaceitem.model';
 import { RemoteData } from '../../../../core/data/remote-data';
 import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
+import { createSuccessfulRemoteDataObject } from '../../../testing/utils';
 
 let component: WorkspaceitemMyDSpaceResultListElementComponent;
 let fixture: ComponentFixture<WorkspaceitemMyDSpaceResultListElementComponent>;
@@ -48,7 +49,7 @@ const item = Object.assign(new Item(), {
     ]
   }
 });
-const rd = new RemoteData(false, false, true, null, item);
+const rd = createSuccessfulRemoteDataObject(item);
 mockResultObject.indexableObject = Object.assign(new WorkspaceItem(), { item: observableOf(rd) });
 
 describe('WorkspaceitemMyDSpaceResultListElementComponent', () => {

src/app/shared/testing/auth-request-service-stub.ts

@@ -6,6 +6,7 @@ import { EPerson } from '../../core/eperson/models/eperson.model';
 import { isNotEmpty } from '../empty.util';
 import { EPersonMock } from './eperson-mock';
 import { RemoteData } from '../../core/data/remote-data';
+import { createSuccessfulRemoteDataObject$ } from './utils';
 
 export class AuthRequestServiceStub {
   protected mockUser: EPerson = EPersonMock;
@@ -27,7 +28,7 @@ export class AuthRequestServiceStub {
       if (this.validateToken(token)) {
         authStatusStub.authenticated = true;
         authStatusStub.token = this.mockTokenInfo;
-        authStatusStub.eperson = observableOf(new RemoteData<EPerson>(false, false, true, undefined, this.mockUser));
+        authStatusStub.eperson = createSuccessfulRemoteDataObject$(this.mockUser);
       } else {
         authStatusStub.authenticated = false;
       }
@@ -46,7 +47,7 @@ export class AuthRequestServiceStub {
         if (this.validateToken(token)) {
           authStatusStub.authenticated = true;
           authStatusStub.token = this.mockTokenInfo;
-          authStatusStub.eperson = observableOf(new RemoteData<EPerson>(false, false, true, undefined, this.mockUser));
+          authStatusStub.eperson = createSuccessfulRemoteDataObject$(this.mockUser);
         } else {
           authStatusStub.authenticated = false;
         }

src/app/shared/testing/auth-service-stub.ts

@@ -4,6 +4,7 @@ import { AuthTokenInfo } from '../../core/auth/models/auth-token-info.model';
 import { EPersonMock } from './eperson-mock';
 import { EPerson } from '../../core/eperson/models/eperson.model';
 import { RemoteData } from '../../core/data/remote-data';
+import { createSuccessfulRemoteDataObject$ } from './utils';
 
 export class AuthServiceStub {
 
@@ -20,7 +21,7 @@ export class AuthServiceStub {
       authStatus.okay = true;
       authStatus.authenticated = true;
       authStatus.token = this.token;
-      authStatus.eperson = observableOf(new RemoteData<EPerson>(false, false, true, undefined, EPersonMock));
+      authStatus.eperson = createSuccessfulRemoteDataObject$(EPersonMock);
       return observableOf(authStatus);
     } else {
       console.log('error');

src/app/shared/testing/utils.ts

@@ -1,4 +1,7 @@
 import { ComponentFixture, TestBed } from '@angular/core/testing';
+import { RemoteData } from '../../core/data/remote-data';
+import { Observable, of as observableOf } from 'rxjs';
+import { RemoteDataError } from '../../core/data/remote-data-error';
 
 /**
  * Returns true if a Native Element has a specified css class.
@@ -50,3 +53,45 @@ export function spyOnOperator(obj: any, prop: string): any {
 
   return spyOn(obj, prop);
 }
+
+export function createSuccessfulRemoteDataObject<T>(object: T): RemoteData<T>{
+  return new RemoteData(
+    false,
+    false,
+    true,
+    undefined,
+    object
+  );
+}
+
+export function createSuccessfulRemoteDataObject$<T>(object: T): Observable<RemoteData<T>>{
+  return observableOf(createSuccessfulRemoteDataObject(object));
+}
+
+export function createFailedRemoteDataObject<T>(object?: T, error?: RemoteDataError): RemoteData<T>{
+  return new RemoteData(
+    false,
+    false,
+    false,
+    error,
+    object
+  );
+}
+
+export function createFailedRemoteDataObject$<T>(object?: T, error?: RemoteDataError): Observable<RemoteData<T>>{
+  return observableOf(createFailedRemoteDataObject(object, error));
+}
+
+export function createPendingRemoteDataObject<T>(object?: T): RemoteData<T>{
+  return new RemoteData(
+    true,
+    true,
+    true,
+    null,
+    object
+  );
+}
+
+export function createPendingRemoteDataObject$<T>(object?: T): Observable<RemoteData<T>>{
+  return observableOf(createPendingRemoteDataObject(object));
+}

src/app/submission/edit/submission-edit.component.spec.ts

@@ -16,7 +16,7 @@ import { getMockTranslateService } from '../../shared/mocks/mock-translate.servi
 import { RouterStub } from '../../shared/testing/router-stub';
 import { ActivatedRouteStub } from '../../shared/testing/active-router-stub';
 import { mockSubmissionObject } from '../../shared/mocks/mock-submission';
-import { RemoteData } from '../../core/data/remote-data';
+import { createSuccessfulRemoteDataObject$ } from '../../shared/testing/utils';
 
 describe('SubmissionEditComponent Component', () => {
 
@@ -66,14 +66,9 @@ describe('SubmissionEditComponent Component', () => {
   it('should init properly when a valid SubmissionObject has been retrieved', fakeAsync(() => {
 
     route.testParams = { id: submissionId };
-    submissionServiceStub.retrieveSubmission.and.returnValue(observableOf(
+    submissionServiceStub.retrieveSubmission.and.returnValue(
-      new RemoteData(
+      createSuccessfulRemoteDataObject$(submissionObject)
-        false,
+    );
-        false,
-        true,
-        null,
-        submissionObject)
-    ));
 
     fixture.detectChanges();
 
@@ -88,14 +83,8 @@ describe('SubmissionEditComponent Component', () => {
   it('should redirect to mydspace when an empty SubmissionObject has been retrieved', fakeAsync(() => {
 
     route.testParams = { id: submissionId };
-    submissionServiceStub.retrieveSubmission.and.returnValue(observableOf(
+    submissionServiceStub.retrieveSubmission.and.returnValue(createSuccessfulRemoteDataObject$({})
-      new RemoteData(
+    );
-        false,
-        false,
-        true,
-        null,
-        {})
-    ));
 
     fixture.detectChanges();
 

src/app/submission/form/collection/submission-form-collection.component.spec.ts

@@ -23,7 +23,10 @@ import { RemoteData } from '../../../core/data/remote-data';
 import { PaginatedList } from '../../../core/data/paginated-list';
 import { PageInfo } from '../../../core/shared/page-info.model';
 import { Collection } from '../../../core/shared/collection.model';
-import { createTestComponent } from '../../../shared/testing/utils';
+import {
+  createSuccessfulRemoteDataObject$,
+  createTestComponent
+} from '../../../shared/testing/utils';
 import { cold } from 'jasmine-marbles';
 
 const subcommunities = [Object.assign(new Community(), {
@@ -101,10 +104,8 @@ const mockCommunity = Object.assign(new Community(), {
       language: 'en_US',
       value: 'Community 1'
     }],
-  collections: observableOf(new RemoteData(true, true, true,
+  collections: createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), [mockCommunity1Collection1, mockCommunity1Collection2])), //LOTTE
-    undefined, new PaginatedList(new PageInfo(), [mockCommunity1Collection1, mockCommunity1Collection2]))),
+  subcommunities: createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), subcommunities)),
-  subcommunities: observableOf(new RemoteData(true, true, true,
-    undefined, new PaginatedList(new PageInfo(), subcommunities))),
 });
 
 const mockCommunity2 = Object.assign(new Community(), {
@@ -116,14 +117,11 @@ const mockCommunity2 = Object.assign(new Community(), {
       language: 'en_US',
       value: 'Community 2'
     }],
-  collections: observableOf(new RemoteData(true, true, true,
+  collections: createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), [mockCommunity2Collection1, mockCommunity2Collection2])),
-    undefined, new PaginatedList(new PageInfo(), [mockCommunity2Collection1, mockCommunity2Collection2]))),
+  subcommunities: createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), [])),
-  subcommunities: observableOf(new RemoteData(true, true, true,
-    undefined, new PaginatedList(new PageInfo(), []))),
 });
 
-const mockCommunityList = observableOf(new RemoteData(true, true, true,
+const mockCommunityList = createSuccessfulRemoteDataObject$(new PaginatedList(new PageInfo(), [mockCommunity, mockCommunity2]));
-  undefined, new PaginatedList(new PageInfo(), [mockCommunity, mockCommunity2])));
 
 const mockCollectionList = [
   {

src/app/submission/sections/license/section-license.component.spec.ts

@@ -6,9 +6,13 @@ import { async, ComponentFixture, inject, TestBed } from '@angular/core/testing'
 
 import { of as observableOf } from 'rxjs';
 import { TranslateModule } from '@ngx-translate/core';
-import { DynamicCheckboxModel, DynamicFormControlEvent, DynamicFormControlEventType } from '@ng-dynamic-forms/core';
+import {
+  DynamicCheckboxModel,
+  DynamicFormControlEvent,
+  DynamicFormControlEventType
+} from '@ng-dynamic-forms/core';
 
-import { createTestComponent } from '../../../shared/testing/utils';
+import { createSuccessfulRemoteDataObject$, createTestComponent } from '../../../shared/testing/utils';
 import { NotificationsService } from '../../../shared/notifications/notifications.service';
 import { NotificationsServiceStub } from '../../../shared/testing/notifications-service-stub';
 import { SubmissionService } from '../../submission.service';
@@ -109,8 +113,7 @@ describe('SubmissionSectionLicenseComponent test suite', () => {
         language: 'en_US',
         value: 'Community 1-Collection 1'
       }],
-    license: observableOf(new RemoteData(false, false, true,
+    license: createSuccessfulRemoteDataObject$(Object.assign(new License(), { text: licenseText }))
-      undefined, Object.assign(new License(), { text: licenseText })))
   });
 
   beforeEach(async(() => {
@@ -193,8 +196,7 @@ describe('SubmissionSectionLicenseComponent test suite', () => {
     });
 
     it('should init section properly', () => {
-      collectionDataService.findById.and.returnValue(observableOf(new RemoteData(false, false, true,
+      collectionDataService.findById.and.returnValue(createSuccessfulRemoteDataObject$(mockCollection));
-        undefined, mockCollection)));
       sectionsServiceStub.getSectionErrors.and.returnValue(observableOf([]));
       sectionsServiceStub.isSectionReadOnly.and.returnValue(observableOf(false));
       spyOn(compAsAny, 'getSectionStatus');
@@ -219,8 +221,7 @@ describe('SubmissionSectionLicenseComponent test suite', () => {
         granted: true
       } as any;
 
-      collectionDataService.findById.and.returnValue(observableOf(new RemoteData(false, false, true,
+      collectionDataService.findById.and.returnValue(createSuccessfulRemoteDataObject$(mockCollection));
-        undefined, mockCollection)));
       sectionsServiceStub.getSectionErrors.and.returnValue(observableOf([]));
       sectionsServiceStub.isSectionReadOnly.and.returnValue(observableOf(false));
       spyOn(compAsAny, 'getSectionStatus');
@@ -239,8 +240,7 @@ describe('SubmissionSectionLicenseComponent test suite', () => {
     });
 
     it('should set section errors properly', () => {
-      collectionDataService.findById.and.returnValue(observableOf(new RemoteData(false, false, true,
+      collectionDataService.findById.and.returnValue(createSuccessfulRemoteDataObject$(mockCollection));
-        undefined, mockCollection)));
       sectionsServiceStub.getSectionErrors.and.returnValue(observableOf(mockLicenseParsedErrors.license));
       sectionsServiceStub.isSectionReadOnly.and.returnValue(observableOf(false));
 
@@ -259,8 +259,7 @@ describe('SubmissionSectionLicenseComponent test suite', () => {
         granted: true
       } as any;
 
-      collectionDataService.findById.and.returnValue(observableOf(new RemoteData(false, false, true,
+      collectionDataService.findById.and.returnValue(createSuccessfulRemoteDataObject$(mockCollection));
-        undefined, mockCollection)));
       sectionsServiceStub.getSectionErrors.and.returnValue(observableOf(mockLicenseParsedErrors.license));
       sectionsServiceStub.isSectionReadOnly.and.returnValue(observableOf(false));
 
@@ -272,8 +271,7 @@ describe('SubmissionSectionLicenseComponent test suite', () => {
 
     it('should have status true when checkbox is selected', () => {
 
-      collectionDataService.findById.and.returnValue(observableOf(new RemoteData(false, false, true,
+      collectionDataService.findById.and.returnValue(createSuccessfulRemoteDataObject$(mockCollection));
-        undefined, mockCollection)));
       sectionsServiceStub.getSectionErrors.and.returnValue(observableOf([]));
       sectionsServiceStub.isSectionReadOnly.and.returnValue(observableOf(false));
 
@@ -289,8 +287,7 @@ describe('SubmissionSectionLicenseComponent test suite', () => {
 
     it('should have status false when checkbox is not selected', () => {
 
-      collectionDataService.findById.and.returnValue(observableOf(new RemoteData(false, false, true,
+      collectionDataService.findById.and.returnValue(createSuccessfulRemoteDataObject$(mockCollection));
-        undefined, mockCollection)));
       sectionsServiceStub.getSectionErrors.and.returnValue(observableOf([]));
       sectionsServiceStub.isSectionReadOnly.and.returnValue(observableOf(false));
 

src/app/submission/sections/upload/section-upload.component.spec.ts

@@ -4,7 +4,7 @@ import { TranslateModule } from '@ngx-translate/core';
 
 import { of as observableOf } from 'rxjs';
 
-import { createTestComponent } from '../../../shared/testing/utils';
+import { createSuccessfulRemoteDataObject$, createTestComponent } from '../../../shared/testing/utils';
 import { SubmissionService } from '../../submission.service';
 import { SubmissionServiceStub } from '../../../shared/testing/submission-service-stub';
 import { SectionsService } from '../sections.service';
@@ -30,7 +30,6 @@ import { GroupEpersonService } from '../../../core/eperson/group-eperson.service
 import { cold, hot } from 'jasmine-marbles';
 import { Collection } from '../../../core/shared/collection.model';
 import { ResourcePolicy } from '../../../core/shared/resource-policy.model';
-import { RemoteData } from '../../../core/data/remote-data';
 import { ConfigData } from '../../../core/config/config-data';
 import { PageInfo } from '../../../core/shared/page-info.model';
 import { Group } from '../../../core/eperson/models/group.model';
@@ -180,24 +179,17 @@ describe('SubmissionSectionUploadComponent test suite', () => {
 
       submissionServiceStub.getSubmissionObject.and.returnValue(observableOf(submissionState));
 
-      collectionDataService.findById.and.returnValue(observableOf(
+      collectionDataService.findById.and.returnValue(createSuccessfulRemoteDataObject$(mockCollection));
-        new RemoteData(false, false, true,
-        undefined, mockCollection)));
 
-      collectionDataService.findByHref.and.returnValue(observableOf(
+      collectionDataService.findByHref.and.returnValue(createSuccessfulRemoteDataObject$(mockDefaultAccessCondition));
-        new RemoteData(false, false, true,
-          undefined, mockDefaultAccessCondition)
-      ));
 
       uploadsConfigService.getConfigByHref.and.returnValue(observableOf(
         new ConfigData(new PageInfo(), mockUploadConfigResponse as any)
       ));
 
       groupService.findById.and.returnValues(
-        observableOf(new RemoteData(false, false, true,
+        createSuccessfulRemoteDataObject$(Object.assign(new Group(), mockGroup)),
-          undefined, Object.assign(new Group(), mockGroup))),
+        createSuccessfulRemoteDataObject$(Object.assign(new Group(), mockGroup))
-        observableOf(new RemoteData(false, false, true,
-          undefined, Object.assign(new Group(), mockGroup)))
       );
 
       bitstreamService.getUploadedFileList.and.returnValue(observableOf([]));
@@ -226,24 +218,17 @@ describe('SubmissionSectionUploadComponent test suite', () => {
 
       submissionServiceStub.getSubmissionObject.and.returnValue(observableOf(submissionState));
 
-      collectionDataService.findById.and.returnValue(observableOf(
+      collectionDataService.findById.and.returnValue(createSuccessfulRemoteDataObject$(mockCollection));
-        new RemoteData(false, false, true,
-          undefined, mockCollection)));
 
-      collectionDataService.findByHref.and.returnValue(observableOf(
+      collectionDataService.findByHref.and.returnValue(createSuccessfulRemoteDataObject$(mockDefaultAccessCondition));
-        new RemoteData(false, false, true,
-          undefined, mockDefaultAccessCondition)
-      ));
 
       uploadsConfigService.getConfigByHref.and.returnValue(observableOf(
         new ConfigData(new PageInfo(), mockUploadConfigResponse as any)
       ));
 
       groupService.findById.and.returnValues(
-        observableOf(new RemoteData(false, false, true,
+        createSuccessfulRemoteDataObject$(Object.assign(new Group(), mockGroup)),
-          undefined, Object.assign(new Group(), mockGroup))),
+        createSuccessfulRemoteDataObject$(Object.assign(new Group(), mockGroup))
-        observableOf(new RemoteData(false, false, true,
-          undefined, Object.assign(new Group(), mockGroup)))
       );
 
       bitstreamService.getUploadedFileList.and.returnValue(observableOf(mockUploadFiles));

src/app/submission/submission.service.spec.ts

@@ -18,7 +18,10 @@ import { MockActivatedRoute } from '../shared/mocks/mock-active-router';
 import { GLOBAL_CONFIG } from '../../config';
 import { HttpOptions } from '../core/dspace-rest-v2/dspace-rest-v2.service';
 import { SubmissionScopeType } from '../core/submission/submission-scope-type';
-import { mockSubmissionDefinition, mockSubmissionRestResponse } from '../shared/mocks/mock-submission';
+import {
+  mockSubmissionDefinition,
+  mockSubmissionRestResponse
+} from '../shared/mocks/mock-submission';
 import { NotificationsService } from '../shared/notifications/notifications.service';
 import { MockTranslateLoader } from '../shared/mocks/mock-translate-loader';
 import { MOCK_SUBMISSION_CONFIG } from '../shared/testing/mock-submission-config';
@@ -37,6 +40,11 @@ import {
 import { RemoteData } from '../core/data/remote-data';
 import { RemoteDataError } from '../core/data/remote-data-error';
 import { throwError as observableThrowError } from 'rxjs/internal/observable/throwError';
+import {
+  createFailedRemoteDataObject,
+  createSuccessfulRemoteDataObject,
+  createSuccessfulRemoteDataObject$
+} from '../shared/testing/utils';
 
 describe('SubmissionService test suite', () => {
   const config = MOCK_SUBMISSION_CONFIG;
@@ -344,7 +352,7 @@ describe('SubmissionService test suite', () => {
   beforeEach(async(() => {
     TestBed.configureTestingModule({
       imports: [
-        StoreModule.forRoot({submissionReducers} as any),
+        StoreModule.forRoot({ submissionReducers } as any),
         TranslateModule.forRoot({
           loader: {
             provide: TranslateLoader,
@@ -353,10 +361,10 @@ describe('SubmissionService test suite', () => {
         })
       ],
       providers: [
-        {provide: GLOBAL_CONFIG, useValue: config},
+        { provide: GLOBAL_CONFIG, useValue: config },
-        {provide: Router, useValue: router},
+        { provide: Router, useValue: router },
-        {provide: SubmissionRestService, useValue: restService},
+        { provide: SubmissionRestService, useValue: restService },
-        {provide: ActivatedRoute, useValue: new MockActivatedRoute()},
+        { provide: ActivatedRoute, useValue: new MockActivatedRoute() },
         NotificationsService,
         RouteService,
         SubmissionService,
@@ -482,7 +490,7 @@ describe('SubmissionService test suite', () => {
       }));
 
       const result = service.getSubmissionObject('826');
-      const expected = cold('b', {b: subState.objects[826]});
+      const expected = cold('b', { b: subState.objects[826] });
 
       expect(result).toBeObservable(expected);
     });
@@ -495,7 +503,7 @@ describe('SubmissionService test suite', () => {
       }));
 
       const result = service.getActiveSectionId('826');
-      const expected = cold('b', {b: 'keyinformation'});
+      const expected = cold('b', { b: 'keyinformation' });
 
       expect(result).toBeObservable(expected);
 
@@ -747,7 +755,7 @@ describe('SubmissionService test suite', () => {
 
   describe('isSubmissionLoading', () => {
     it('should return true/false when section is loading/not loading', () => {
-      const spy = spyOn(service, 'getSubmissionObject').and.returnValue(observableOf({isLoading: true}));
+      const spy = spyOn(service, 'getSubmissionObject').and.returnValue(observableOf({ isLoading: true }));
 
       let expected = cold('(b|)', {
         b: true
@@ -755,7 +763,7 @@ describe('SubmissionService test suite', () => {
 
       expect(service.isSubmissionLoading(submissionId)).toBeObservable(expected);
 
-      spy.and.returnValue(observableOf({isLoading: false}));
+      spy.and.returnValue(observableOf({ isLoading: false }));
 
       expected = cold('(b|)', {
         b: false
@@ -841,11 +849,7 @@ describe('SubmissionService test suite', () => {
 
       const result = service.retrieveSubmission('826');
       const expected = cold('(b|)', {
-        b: new RemoteData(
+        b: createSuccessfulRemoteDataObject(
-          false,
-          false,
-          true,
-          null,
           mockSubmissionRestResponse[0])
       });
 
@@ -862,12 +866,8 @@ describe('SubmissionService test suite', () => {
       );
 
       service.retrieveSubmission('826').subscribe((r) => {
-        expect(r).toEqual(new RemoteData(
+        expect(r).toEqual(createFailedRemoteDataObject(null,
-          false,
+          new RemoteDataError(500, 'Internal Server Error', 'Error message')
-          false,
-          false,
-          new RemoteDataError(500, 'Internal Server Error', 'Error message'),
-          null
         ))
       });
     });

src/app/submission/submission.service.ts

@@ -3,7 +3,15 @@ import { HttpHeaders } from '@angular/common/http';
 import { Router } from '@angular/router';
 
 import { Observable, of as observableOf, Subscription, timer as observableTimer } from 'rxjs';
-import { catchError, distinctUntilChanged, filter, find, first, map, startWith } from 'rxjs/operators';
+import {
+  catchError,
+  distinctUntilChanged,
+  filter,
+  find,
+  first,
+  map,
+  startWith
+} from 'rxjs/operators';
 import { Store } from '@ngrx/store';
 import { TranslateService } from '@ngx-translate/core';
 
@@ -43,6 +51,11 @@ import { WorkspaceitemSectionsObject } from '../core/submission/models/workspace
 import { RemoteData } from '../core/data/remote-data';
 import { ErrorResponse } from '../core/cache/response.models';
 import { RemoteDataError } from '../core/data/remote-data-error';
+import {
+  createFailedRemoteDataObject$,
+  createSuccessfulRemoteDataObject,
+  createSuccessfulRemoteDataObject$
+} from '../shared/testing/utils';
 
 /**
  * A service that provides methods used in submission process.
@@ -495,20 +508,12 @@ export class SubmissionService {
   retrieveSubmission(submissionId): Observable<RemoteData<SubmissionObject>> {
     return this.restService.getDataById(this.getSubmissionObjectLinkName(), submissionId).pipe(
       find((submissionObjects: SubmissionObject[]) => isNotUndefined(submissionObjects)),
-      map((submissionObjects: SubmissionObject[]) => new RemoteData(
+      map((submissionObjects: SubmissionObject[]) => createSuccessfulRemoteDataObject(
-        false,
-        false,
-        true,
-        null,
         submissionObjects[0])),
       catchError((errorResponse: ErrorResponse) => {
-        return observableOf(new RemoteData(
+        return createFailedRemoteDataObject$(null,
-          false,
+          new RemoteDataError(errorResponse.statusCode, errorResponse.statusText, errorResponse.errorMessage)
-          false,
+        )
-          false,
-          new RemoteDataError(errorResponse.statusCode, errorResponse.statusText, errorResponse.errorMessage),
-          null
-        ))
       })
     );
   }