diff --git a/src/app/core/data/version-history-data.service.spec.ts b/src/app/core/data/version-history-data.service.spec.ts
index bc55b99c4a..564c34ba98 100644
--- a/src/app/core/data/version-history-data.service.spec.ts
+++ b/src/app/core/data/version-history-data.service.spec.ts
@@ -7,6 +7,13 @@ import { HALEndpointServiceStub } from '../../shared/testing/hal-endpoint-servic
 import { getMockRequestService } from '../../shared/mocks/request.service.mock';
 import { VersionDataService } from './version-data.service';
 import { fakeAsync, waitForAsync } from '@angular/core/testing';
+import { VersionHistory } from '../shared/version-history.model';
+import { Version } from '../shared/version.model';
+import { createSuccessfulRemoteDataObject$ } from '../../shared/remote-data.utils';
+import { createPaginatedList } from '../../shared/testing/utils.test';
+import { Item } from '../shared/item.model';
+import { of } from 'rxjs';
+import SpyObj = jasmine.SpyObj;
 
 const url = 'fake-url';
 
@@ -17,10 +24,96 @@ describe('VersionHistoryDataService', () => {
   let notificationsService: any;
   let rdbService: RemoteDataBuildService;
   let objectCache: ObjectCacheService;
-  let versionService: VersionDataService;
+  let versionService: SpyObj<VersionDataService>;
   let halService: any;
 
   const versionHistoryId = 'version-history-id';
+  const versionHistoryDraftId = 'version-history-draft-id';
+  const version1Id = 'version-1-id';
+  const version2Id = 'version-1-id';
+  const item1Uuid = 'item-1-uuid';
+  const item2Uuid = 'item-2-uuid';
+  const versionHistory = Object.assign(new VersionHistory(), {
+    id: versionHistoryId,
+    draftVersion: false,
+  });
+  const versionHistoryDraft = Object.assign(new VersionHistory(), {
+    id: versionHistoryDraftId,
+    draftVersion: true,
+  });
+  const version1 = Object.assign(new Version(), {
+    id: version1Id,
+    version: 1,
+    created: new Date(2020, 1, 1),
+    summary: 'first version',
+    versionhistory: createSuccessfulRemoteDataObject$(versionHistory),
+    _links: {
+      self: {
+        href: 'version1-url',
+      },
+    },
+  });
+  const version2 = Object.assign(new Version(), {
+    id: version2Id,
+    version: 2,
+    summary: 'second version',
+    created: new Date(2020, 1, 2),
+    versionhistory: createSuccessfulRemoteDataObject$(versionHistory),
+    _links: {
+      self: {
+        href: 'version2-url',
+      },
+    },
+  });
+  const versions = [version1, version2];
+  versionHistory.versions = createSuccessfulRemoteDataObject$(createPaginatedList(versions));
+  const item1 = Object.assign(new Item(), {
+    uuid: item1Uuid,
+    handle: '123456789/1',
+    version: createSuccessfulRemoteDataObject$(version1),
+    _links: {
+      self: {
+        href: '/items/' + item2Uuid,
+      }
+    }
+  });
+  const item2 = Object.assign(new Item(), {
+    uuid: item2Uuid,
+    handle: '123456789/2',
+    version: createSuccessfulRemoteDataObject$(version2),
+    _links: {
+      self: {
+        href: '/items/' + item2Uuid,
+      }
+    }
+  });
+  const items = [item1, item2];
+  version1.item = createSuccessfulRemoteDataObject$(item1);
+  version2.item = createSuccessfulRemoteDataObject$(item2);
+
+  /**
+   * Create a VersionHistoryDataService used for testing
+   * @param requestEntry$   Supply a requestEntry to be returned by the REST API (optional)
+   */
+  function createService(requestEntry$?) {
+    requestService = getMockRequestService(requestEntry$);
+    rdbService = jasmine.createSpyObj('rdbService', {
+      buildList: jasmine.createSpy('buildList'),
+      buildFromRequestUUID: jasmine.createSpy('buildFromRequestUUID'),
+    });
+    objectCache = jasmine.createSpyObj('objectCache', {
+      remove: jasmine.createSpy('remove')
+    });
+    versionService = jasmine.createSpyObj('objectCache', {
+      findByHref: jasmine.createSpy('findByHref'),
+      findAllByHref: jasmine.createSpy('findAllByHref'),
+      getHistoryFromVersion: jasmine.createSpy('getHistoryFromVersion'),
+    });
+    halService = new HALEndpointServiceStub(url);
+    notificationsService = new NotificationsServiceStub();
+
+    service = new VersionHistoryDataService(requestService, rdbService, null, objectCache, halService, notificationsService, versionService, null, null);
+  }
 
   beforeEach(() => {
     createService();
@@ -38,28 +131,6 @@ describe('VersionHistoryDataService', () => {
     });
   });
 
-  /**
-   * Create a VersionHistoryDataService used for testing
-   * @param requestEntry$   Supply a requestEntry to be returned by the REST API (optional)
-   */
-  function createService(requestEntry$?) {
-    requestService = getMockRequestService(requestEntry$);
-    rdbService = jasmine.createSpyObj('rdbService', {
-      buildList: jasmine.createSpy('buildList'),
-      buildFromRequestUUID: jasmine.createSpy('buildFromRequestUUID'),
-    });
-    objectCache = jasmine.createSpyObj('objectCache', {
-      remove: jasmine.createSpy('remove')
-    });
-    versionService = jasmine.createSpyObj('objectCache', {
-      findAllByHref: jasmine.createSpy('findAllByHref')
-    });
-    halService = new HALEndpointServiceStub(url);
-    notificationsService = new NotificationsServiceStub();
-
-    service = new VersionHistoryDataService(requestService, rdbService, null, objectCache, halService, notificationsService, versionService, null, null);
-  }
-
   describe('when getVersions is called', () => {
     beforeEach(waitForAsync(() => {
       service.getVersions(versionHistoryId);
@@ -101,4 +172,38 @@ describe('VersionHistoryDataService', () => {
     }));
   });
 
+  describe('isLatest$', () => {
+    beforeEach(waitForAsync(() => {
+      spyOn(service, 'getLatestVersion$').and.returnValue(of(version2));
+    }));
+    it('should return false for version1', () => {
+      service.isLatest$(version1).subscribe((res) => {
+        expect(res).toBe(false);
+      });
+    });
+    it('should return true for version2', () => {
+      service.isLatest$(version2).subscribe((res) => {
+        expect(res).toBe(true);
+      });
+    });
+  });
+
+  describe('hasDraftVersion$', () => {
+    beforeEach(waitForAsync(() => {
+      versionService.findByHref.and.returnValue(createSuccessfulRemoteDataObject$<Version>(version1));
+    }));
+    it('should return false if draftVersion is false', fakeAsync(() => {
+      versionService.getHistoryFromVersion.and.returnValue(of(versionHistory));
+      service.hasDraftVersion$('href').subscribe((res) => {
+        expect(res).toBeFalse();
+      });
+    }));
+    it('should return true if draftVersion is true', fakeAsync(() => {
+      versionService.getHistoryFromVersion.and.returnValue(of(versionHistoryDraft));
+      service.hasDraftVersion$('href').subscribe((res) => {
+        expect(res).toBeTrue();
+      });
+    }));
+  });
+
 });