fix: refuse implausible accommodation booking prices

tests/Controller/Admin/AccommodationBooking/CreateControllerTest.php

@@ -7,6 +7,7 @@ namespace App\Tests\Controller\Admin\AccommodationBooking;
 use App\Controller\Admin\AccommodationBooking\CreateController;
 use App\Entity\Groups\AccommodationBooking;
 use App\Entity\User;
+use App\Exception\ImplausibleBookingPriceException;
 use App\Service\AccommodationBookingService;
 use Doctrine\ORM\EntityManagerInterface;
 use PHPUnit\Framework\TestCase;
@@ -32,6 +33,37 @@ class CreateControllerTest extends TestCase
         self::assertSame($user, $controller->capturedBooking?->getManagedBy());
     }
 
+    public function testAnImplausiblePriceComesBackAsAFormErrorWithoutSaving(): void
+    {
+        // Same as on the edit form: the fix is in the house's price rows, so the office is told
+        // on the form it is standing in front of, and nothing is written.
+        $bookingService = $this->createStub(AccommodationBookingService::class);
+        $bookingService->method('refreshPriceSnapshot')
+            ->willThrowException(new ImplausibleBookingPriceException(AccommodationBooking::MAX_TOTAL_PRICE + 1, 40, 2));
+
+        $form = $this->createMock(FormInterface::class);
+        $form->method('handleRequest')->willReturn($form);
+        $form->method('isSubmitted')->willReturn(true);
+        $form->method('isValid')->willReturn(true);
+        $form->expects(self::once())->method('addError');
+
+        $entityManager = $this->createMock(EntityManagerInterface::class);
+        $entityManager->expects(self::never())->method('persist');
+        $entityManager->expects(self::never())->method('flush');
+
+        $controller = new TestableCreateController(
+            $entityManager,
+            $this->createStub(LoggerInterface::class),
+            $bookingService,
+            $form,
+            new User('[email protected]'),
+        );
+
+        $response = $controller->index(Request::create('/admin/accommodation-booking/create', 'POST'));
+
+        self::assertSame(Response::HTTP_OK, $response->getStatusCode(), 'the modal is re-rendered, not redirected');
+    }
+
     private function buildController(?UserInterface $user): TestableCreateController
     {
         $form = $this->createStub(FormInterface::class);