[3860] - change role to grid and add unit test

lib/core/datatable/components/datatable/datatable.component.html

@@ -1,5 +1,5 @@
 <div
-    role="table"
+    role="grid"
     *ngIf="data" class="adf-full-width"
     [class.adf-data-table-card]="display === 'gallery'"
     [class.adf-data-table]="display === 'list'"
@@ -57,9 +57,8 @@
                  [ngClass]="getRowStyle(row)"
                  (keyup)="onRowKeyUp(row, $event)">
                 <!-- Actions (left) -->
-                <div *ngIf="actions && actionsPosition === 'left'" class="adf-datatable-table-cell">
+                <div *ngIf="actions && actionsPosition === 'left'" role="gridcell" class="adf-datatable-table-cell">
                     <button mat-icon-button [matMenuTriggerFor]="menu"
-                            role="cell"
                             [title]="'ADF-DATATABLE.CONTENT-ACTIONS.TOOLTIP' | translate"
                             [attr.id]="'action_menu_left_' + idx"
                             [attr.data-automation-id]="'action_menu_' + idx">
@@ -83,6 +82,7 @@
                     </mat-checkbox>
                 </div>
                 <div *ngFor="let col of data.getColumns()"
+                     role="gridcell"
                      class="adf-data-table-cell adf-datatable-table-cell adf-data-table-cell--{{col.type || 'text'}} {{col.cssClass}}"
                      [attr.title]="col.title | translate"
                      [attr.filename]="getFilename(row)"
@@ -163,6 +163,7 @@
 
                 <!-- Actions (right) -->
                 <div *ngIf="actions && actionsPosition === 'right'"
+                     role="gridcell"
                      class="adf-datatable-table-cell adf-datatable__actions-cell">
                     <button mat-icon-button [matMenuTriggerFor]="menu"
                             [title]="'ADF-DATATABLE.CONTENT-ACTIONS.TOOLTIP' | translate"
@@ -183,9 +184,10 @@
 
             </div>
             <div *ngIf="isEmpty()"
+                 role="row"
                  [class.adf-datatable-row]="display === 'list'"
                  [class.adf-data-table-card-empty]="display === 'gallery'">
-                <div class="adf-no-content-container adf-datatable-table-cell">
+                <div class="adf-no-content-container adf-datatable-table-cell" role="gridcell">
                     <ng-template *ngIf="noContentTemplate"
                                  ngFor [ngForOf]="[data]"
                                  [ngForTemplate]="noContentTemplate">
@@ -198,6 +200,7 @@
             </div>
         </ng-container>
         <div *ngIf="!loading && noPermission"
+             role="row"
              [class.adf-datatable-row]="display === 'list'"
              [class.adf-data-table-card-permissions]="display === 'gallery'"
              class="adf-no-permission__row">

lib/core/datatable/components/datatable/datatable.component.spec.ts

@@ -951,3 +951,61 @@ describe('DataTable', () => {
         expect(emitted).toBe(2);
     });
 });
+
+
+describe('Accesibility', () => {
+
+    let fixture: ComponentFixture<DataTableComponent>;
+    let dataTable: DataTableComponent;
+    let element: any;
+
+    setupTestBed({
+        imports: [
+            CoreTestingModule
+        ],
+        schemas: [NO_ERRORS_SCHEMA]
+    });
+
+    beforeEach(() => {
+        fixture = TestBed.createComponent(DataTableComponent);
+        dataTable = fixture.componentInstance;
+        element = fixture.debugElement.nativeElement;
+    });
+
+    afterEach(() => {
+        fixture.destroy();
+    });
+
+    it('should have accesibility tags', () => {
+
+        const dataRows =
+            [
+                { name: 'test1' },
+                { name: 'test2' },
+                { name: 'test3' },
+                { name: 'test4' }
+            ];
+        dataTable.data = new ObjectDataTableAdapter([],
+            [new ObjectDataColumn({ key: 'name' })]
+        );
+
+        dataTable.ngOnChanges({
+            rows: new SimpleChange(null, dataRows, false)
+        });
+
+        fixture.detectChanges();
+        const datatableAttributes = element.querySelector('.adf-data-table').attributes;
+        const datatableHeaderAttributes = element.querySelector('.adf-data-table .adf-datatable-header').attributes;
+        const datatableHeaderCellAttributes = element.querySelector('.adf-datatable-table-cell-header').attributes;
+        const datatableBodyAttributes = element.querySelector('.adf-datatable-body').attributes;
+        const datatableBodyRowAttributes = element.querySelector('.adf-datatable-body .adf-datatable-row').attributes;
+        const datatableBodyCellAttributes = element.querySelector('.adf-datatable-body .adf-datatable-table-cell').attributes;
+
+        expect(datatableAttributes.getNamedItem('role').value).toEqual("grid");
+        expect(datatableHeaderAttributes.getNamedItem('role').value).toEqual("rowgroup");
+        expect(datatableHeaderCellAttributes.getNamedItem('role').value).toEqual("columnheader");
+        expect(datatableBodyAttributes.getNamedItem('role').value).toEqual("rowgroup");
+        expect(datatableBodyRowAttributes.getNamedItem('role').value).toEqual("row");
+        expect(datatableBodyCellAttributes.getNamedItem('role').value).toEqual("gridcell");
+    });
+})