reworded no mot status on view-test-result (#1731)

src/app/pages/view-test-result/components/vehicle-details-card/__tests__/vehicle-details-card.spec.ts

@@ -546,5 +546,24 @@ describe('VehicleDetailsCardComponent', () => {
         expect(component.isInvalidMOT()).toEqual(false);
       });
     });
+
+    describe('getNoMOTDataText', () => {
+      it('returns the correct text when registration number is available', () => {
+        spyOnProperty(component, 'registrationNumber').and.returnValue('ABC123');
+        expect(component.getNoMOTDataText()).toEqual('Unable to determine MOT status for ABC123');
+      });
+
+      it('returns the correct text when there are previously filtered VRNs but no registration number', () => {
+        spyOnProperty(component, 'registrationNumber').and.returnValue(null);
+        spyOn(component, 'getPreviousFilteredVRNs').and.returnValue(['XYZ789']);
+        expect(component.getNoMOTDataText()).toEqual('Unable to determine MOT status');
+      });
+
+      it('returns the correct text when there are no previously filtered VRNs and no registration number', () => {
+        spyOnProperty(component, 'registrationNumber').and.returnValue(null);
+        spyOn(component, 'getPreviousFilteredVRNs').and.returnValue([]);
+        expect(component.getNoMOTDataText()).toEqual('No VRNs were checked for MOT');
+      });
+    });
   });
 });

src/app/pages/view-test-result/components/vehicle-details-card/vehicle-details-card.html

@@ -47,7 +47,7 @@ <h2 class="des-header-style-4" id="view-test-result-vehicle-details-title">Vehic
 
       <data-row-custom [centredData]="true" [label]="'MOT Status'">
         <div class="ion-no-padding" *ngIf="!(data?.motStatus)">
-          <ion-text class="mes-data">No VRNs were checked for MOT</ion-text>
+          <ion-text class="mes-data">{{getNoMOTDataText()}}</ion-text>
         </div>
         <div class="display-flex ion-no-padding width-100-percent" *ngIf="data?.motStatus">
           <ion-col class="ion-align-items-center display-flex" size="10" *ngIf="isInvalidMOT()">

src/app/pages/view-test-result/components/vehicle-details-card/vehicle-details-card.ts

@@ -302,4 +302,21 @@ export class VehicleDetailsCardComponent {
     }
     return this.data?.testExpiryDate ? 'Expired ' + this.data?.testExpiryDate : 'Not valid';
   }
+
+  /**
+   * Get the text indicating the absence of MOT data.
+   *
+   * @returns {string} - The text indicating the absence of MOT data. Possible values are:
+   *   - 'Unable to determine MOT status for {registrationNumber}' if a registration number is available.
+   *   - 'Unable to determine MOT status' if there are previously filtered VRNs but no registration number.
+   *   - 'No VRNs were checked for MOT' if there are no previously filtered VRNs and no registration number.
+   */
+  getNoMOTDataText(): string {
+    if (this.registrationNumber) {
+      return 'Unable to determine MOT status for ' + this.registrationNumber;
+    } else if (this.getPreviousFilteredVRNs().length > 0) {
+      return 'Unable to determine MOT status';
+    }
+    return 'No VRNs were checked for MOT';
+  }
 }