diff --git a/tests/features/PurchaseTicketsTest.php b/tests/features/PurchaseTicketsTest.php
index 8d631ba..177d985 100644
--- a/tests/features/PurchaseTicketsTest.php
+++ b/tests/features/PurchaseTicketsTest.php
@@ -105,13 +105,31 @@ class PurchaseTicketsTest extends TestCase
     /** @test */
     function cannot_purchase_tickets_another_customer_is_already_trying_to_purchase()
     {
-        $concert = factory(Concert::class)->states('published')->create()->addTickets(3);
+        $concert = factory(Concert::class)->states('published')->create([
+            'ticket_price' => 1200
+        ])->addTickets(3);
+
+        $this->paymentGateway->beforeFirstCharge(function ($paymentGateway) use ($concert) {
+            $this->orderTickets($concert, [
+                'email' => 'personB@example.com',
+                'ticket_quantity' => 1,
+                'payment_token' => $this->paymentGateway->getValidTestToken(),
+            ]);
+
+            $this->assertResponseStatus(422);
+            $this->assertFalse($concert->hasOrderFor('personB@example.com'));
+            $this->assertEquals(0, $this->paymentGateway->totalCharges());
+        });
 
         $this->orderTickets($concert, [
             'email' => 'personA@example.com',
-            'ticket_quantity' => 51,
+            'ticket_quantity' => 3,
             'payment_token' => $this->paymentGateway->getValidTestToken(),
         ]);
+
+        $this->assertEquals(3600, $this->paymentGateway->totalCharges());
+        $this->assertTrue($concert->hasOrderFor('personA@example.com'));
+        $this->assertEquals(3, $concert->ordersFor('personA@example.com')->first()->ticketQuantity());
     }
 
     /** @test */