Add test

src/app/test/test.component.html

@@ -3,7 +3,7 @@
         <fm-gradient-select [gradientItems]="gradientItems|async" [showLabel]="false" [showAdd]="true"></fm-gradient-select>
     </div>
     <div class="row mt-3">
-        <button class="btn btn-primary">Test</button>
+        <button class="btn btn-primary" (click)="onTest($event)">Test</button>
     </div>
 </div>