diff --git a/tests/Unit/Application/UseCases/CampaignRequest/Reject/RejectCampaignRequestTest.php b/tests/Unit/Application/UseCases/CampaignRequest/Reject/RejectCampaignRequestTest.php
index 1edb473..d4c6703 100644
--- a/tests/Unit/Application/UseCases/CampaignRequest/Reject/RejectCampaignRequestTest.php
+++ b/tests/Unit/Application/UseCases/CampaignRequest/Reject/RejectCampaignRequestTest.php
@@ -33,7 +33,6 @@ use Domain\Models\ValueObjects\ProcessingCode;
 use Domain\Models\ValueObjects\RequestedCoupon\RequestedCouponQuantity;
 use Domain\Models\ValueObjects\WarningThresholdQuantity;
 use Domain\Ports\Repositories\CampaignRequestRepository;
-use Shared\DDD\UseCases\Input as BaseInput;
 use Shared\Enums\Currency;
 use DateTime;
 use Domain\Models\ValueObjects\RequestedCoupon\RequestedCoupon;
@@ -81,7 +80,7 @@ describe('reject campaign request use case', function (): void {
         $repository = \Mockery::mock(CampaignRequestRepository::class);
         $repository->shouldReceive('findById')->once()->with($id)->andReturn($campaignRequest);
         $repository->shouldReceive('save')->once()->with(\Mockery::on(
-            fn (CampaignRequest $saved): bool => $saved->status === CampaignRequestStatus::REJECTED
+            fn(CampaignRequest $saved): bool => $saved->status === CampaignRequestStatus::REJECTED
                 && $saved->rejectionReason                      === $reason
                 && $saved->updatedAt !== null,
         ));
@@ -137,35 +136,26 @@ describe('reject campaign request use case', function (): void {
         $useCase = new RejectCampaignRequest($repository);
 
         // WHEN
-        $action = fn (): Output => $useCase->execute(
+        $action = fn(): Output => $useCase->execute(
             new Input(id: $id, reason: new RejectionReason('Missing legal documents.'))
         );
 
         // THEN
         expect($action)->toThrow(\DomainException::class, 'Only a created campaign request can be rejected.');
     });
-});
 
-describe('reject campaign request use case assertions', function (): void {
-    it('cannot build an input to reject a campaign request without a reason', function (): void {
+    it('never touches the repository when a rejection reason is missing', function (): void {
+        // GIVEN
+        $repository = \Mockery::mock(CampaignRequestRepository::class);
+        $repository->shouldNotReceive('findById');
+        $repository->shouldNotReceive('save');
+
+        $useCase = new RejectCampaignRequest($repository);
+
         // WHEN
-        $action = fn (): Input => new Input(id: CampaignRequestId::generate());
+        $action = fn(): Output => $useCase->execute(new Input(id: CampaignRequestId::generate()));
 
         // THEN
         expect($action)->toThrow(\ArgumentCountError::class);
     });
-    it('rejects an input of the wrong type', function (): void {
-        // GIVEN
-        $repository   = \Mockery::mock(CampaignRequestRepository::class);
-        $useCase      = new RejectCampaignRequest($repository);
-        $invalidInput = new class () implements BaseInput
-        {
-        };
-
-        // WHEN
-        $action = fn (): Output => $useCase->execute($invalidInput);
-
-        // THEN
-        expect($action)->toThrow(\InvalidArgumentException::class);
-    });
 });