WEB-454 Nominal Annual Interest Field Allows Zero and Negative Values in Saving Product Creation Form

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

@@ -8,11 +8,16 @@
         matTooltip="{{ 'tooltips.The default interest rate set' | translate }}"
         formControlName="nominalAnnualInterestRate"
         required
+        min="0"
+        step="0.01"
       />
-      <mat-error>
+      <mat-error *ngIf="savingProductTermsForm.get('nominalAnnualInterestRate').hasError('required')">
         {{ 'labels.inputs.Nominal Annual Interest' | translate }} {{ 'labels.commons.is' | translate }}
         <strong>{{ 'labels.commons.required' | translate }}</strong>
       </mat-error>
+      <mat-error *ngIf="savingProductTermsForm.get('nominalAnnualInterestRate').hasError('min')">
+        {{ 'labels.inputs.Nominal Annual Interest' | translate }} must be zero or greater
+      </mat-error>
     </mat-form-field>
 
     <span class="flex-48 hide-lt-md"></span>

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

@@ -50,7 +50,9 @@ export class SavingProductTermsStepComponent implements OnInit {
     this.savingProductTermsForm = this.formBuilder.group({
       nominalAnnualInterestRate: [
         '',
-        Validators.required
+        [
+          Validators.required,
+          Validators.min(0)]
       ],
       interestCompoundingPeriodType: [
         '',