WEB-463 Minimum Opening Balance Field Allows Zero and Negative Values in Saving Product Creation Form

src/app/products/saving-products/saving-product-stepper/saving-product-settings-step/saving-product-settings-step.component.html

@@ -7,7 +7,13 @@
         matInput
         matTooltip="{{ 'tooltips.Sets the minimum deposit amount' | translate }}"
         formControlName="minRequiredOpeningBalance"
+        min="0"
+        step="0.01"
       />
+      <mat-error *ngIf="savingProductSettingsForm.get('minRequiredOpeningBalance').hasError('min')">
+        {{ 'labels.inputs.Minimum Opening Balance' | translate }} {{ 'labels.commons.must be' | translate }}
+        {{ 'labels.commons.a positive number' | translate }}
+      </mat-error>
     </mat-form-field>
 
     <span class="flex-48 hide-lt-md"></span>

src/app/products/saving-products/saving-product-stepper/saving-product-settings-step/saving-product-settings-step.component.ts

@@ -71,7 +71,10 @@ export class SavingProductSettingsStepComponent implements OnInit {
 
   createSavingProductSettingsForm() {
     this.savingProductSettingsForm = this.formBuilder.group({
-      minRequiredOpeningBalance: [''],
+      minRequiredOpeningBalance: [
+        '',
+        [Validators.min(0)]
+      ],
       lockinPeriodFrequency: [
         '',
         [