From bf0cba1f773b2cfddbc9914915e303ee6704ee1e Mon Sep 17 00:00:00 2001
From: Adam Wathan <adam.wathan@gmail.com>
Date: Mon, 13 Mar 2017 12:31:53 -0400
Subject: [PATCH] 77 - Stubbing the Interface

---
 app/Order.php                            | 1 +
 app/OrderConfirmationNumberGenerator.php | 8 ++++++++
 tests/features/PurchaseTicketsTest.php   | 9 ++++++---
 3 files changed, 15 insertions(+), 3 deletions(-)
 create mode 100644 app/OrderConfirmationNumberGenerator.php

diff --git a/app/Order.php b/app/Order.php
index c35f997..d4b598c 100644
--- a/app/Order.php
+++ b/app/Order.php
@@ -11,6 +11,7 @@ class Order extends Model
     public static function forTickets($tickets, $email, $amount)
     {
         $order = self::create([
+            'confirmation_number' => app(OrderConfirmationNumberGenerator::class)->generate(),
             'email' => $email,
             'amount' => $amount,
         ]);
diff --git a/app/OrderConfirmationNumberGenerator.php b/app/OrderConfirmationNumberGenerator.php
new file mode 100644
index 0000000..444a971
--- /dev/null
+++ b/app/OrderConfirmationNumberGenerator.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace App;
+
+interface OrderConfirmationNumberGenerator
+{
+    public function generate();
+}
diff --git a/tests/features/PurchaseTicketsTest.php b/tests/features/PurchaseTicketsTest.php
index 14204eb..ced31f0 100644
--- a/tests/features/PurchaseTicketsTest.php
+++ b/tests/features/PurchaseTicketsTest.php
@@ -3,6 +3,7 @@
 use App\Concert;
 use App\Billing\PaymentGateway;
 use App\Billing\FakePaymentGateway;
+use App\OrderConfirmationNumberGenerator;
 use Illuminate\Foundation\Testing\WithoutMiddleware;
 use Illuminate\Foundation\Testing\DatabaseMigrations;
 use Illuminate\Foundation\Testing\DatabaseTransactions;
@@ -51,8 +52,10 @@ class PurchaseTicketsTest extends TestCase
     {
         $this->disableExceptionHandling();
 
-        // The API we need in our app to be able to use a different generation strategy in our tests...
-        // $orderConfirmationNumberGenerator->generate(); // 'ORDERCONFIRMATION1234'
+        $orderConfirmationNumberGenerator = Mockery::mock(OrderConfirmationNumberGenerator::class, [
+            'generate' => 'ORDERCONFIRMATION1234',
+        ]);
+        $this->app->instance(OrderConfirmationNumberGenerator::class, $orderConfirmationNumberGenerator);
 
         $concert = factory(Concert::class)->states('published')->create(['ticket_price' => 3250])->addTickets(3);
 
@@ -65,7 +68,7 @@ class PurchaseTicketsTest extends TestCase
         $this->assertResponseStatus(201);
 
         $this->seeJsonSubset([
-            // 'confirmation_number' => 'ORDERCONFIRMATION1234',
+            'confirmation_number' => 'ORDERCONFIRMATION1234',
             'email' => 'john@example.com',
             'ticket_quantity' => 3,
             'amount' => 9750,