130: added tests for object-list component

src/app/object-list/object-list.component.html

@@ -8,7 +8,7 @@
   (pageChange)="onPageChange($event)"
   (pageSizeChange)="onPageSizeChange($event)"
   (sortDirectionChange)="onSortDirectionChange($event)"
-  (sortFieldChange)="onSortDirectionChange($event)"
+  (sortFieldChange)="onSortFieldChange($event)"
   (paginationChange)="onPaginationChange($event)">
   <ul *ngIf="objects?.hasSucceeded"> <!--class="list-unstyled"-->
       <li *ngFor="let object of objects?.payload">