From 6e1924e5c97e9d8a90eb3ccf80ddfdad2973165a Mon Sep 17 00:00:00 2001
From: Adam Wathan <adam.wathan@gmail.com>
Date: Tue, 14 Nov 2017 16:41:09 -0500
Subject: [PATCH] 144 - Testing the Event Listener

---
 app/Jobs/ProcessPosterImage.php               | 26 +++++++++++
 .../SchedulePosterImageProcessing.php         | 18 ++++++++
 app/Providers/EventServiceProvider.php        |  4 +-
 .../SchedulePosterImageProcessingTest.php     | 44 +++++++++++++++++++
 4 files changed, 90 insertions(+), 2 deletions(-)
 create mode 100644 app/Jobs/ProcessPosterImage.php
 create mode 100644 app/Listeners/SchedulePosterImageProcessing.php
 create mode 100644 tests/Unit/Listeners/SchedulePosterImageProcessingTest.php

diff --git a/app/Jobs/ProcessPosterImage.php b/app/Jobs/ProcessPosterImage.php
new file mode 100644
index 0000000..742c4d9
--- /dev/null
+++ b/app/Jobs/ProcessPosterImage.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Jobs;
+
+use Illuminate\Bus\Queueable;
+use Illuminate\Queue\SerializesModels;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Foundation\Bus\Dispatchable;
+
+class ProcessPosterImage implements ShouldQueue
+{
+    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;
+
+    public $concert;
+
+    public function __construct($concert)
+    {
+        $this->concert = $concert;
+    }
+
+    public function handle()
+    {
+        //
+    }
+}
diff --git a/app/Listeners/SchedulePosterImageProcessing.php b/app/Listeners/SchedulePosterImageProcessing.php
new file mode 100644
index 0000000..6536037
--- /dev/null
+++ b/app/Listeners/SchedulePosterImageProcessing.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace App\Listeners;
+
+use App\Events\ConcertAdded;
+use App\Jobs\ProcessPosterImage;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Contracts\Queue\ShouldQueue;
+
+class SchedulePosterImageProcessing
+{
+    public function handle(ConcertAdded $event)
+    {
+        if ($event->concert->hasPoster()) {
+            ProcessPosterImage::dispatch($event->concert);
+        }
+    }
+}
diff --git a/app/Providers/EventServiceProvider.php b/app/Providers/EventServiceProvider.php
index a182657..ff965d3 100644
--- a/app/Providers/EventServiceProvider.php
+++ b/app/Providers/EventServiceProvider.php
@@ -13,8 +13,8 @@ class EventServiceProvider extends ServiceProvider
      * @var array
      */
     protected $listen = [
-        'App\Events\SomeEvent' => [
-            'App\Listeners\EventListener',
+        'App\Events\ConcertAdded' => [
+            'App\Listeners\SchedulePosterImageProcessing',
         ],
     ];
 
diff --git a/tests/Unit/Listeners/SchedulePosterImageProcessingTest.php b/tests/Unit/Listeners/SchedulePosterImageProcessingTest.php
new file mode 100644
index 0000000..07d45dc
--- /dev/null
+++ b/tests/Unit/Listeners/SchedulePosterImageProcessingTest.php
@@ -0,0 +1,44 @@
+<?php
+
+namespace Tests\Unit\Listeners;
+
+use Tests\TestCase;
+use App\Events\ConcertAdded;
+use App\Jobs\ProcessPosterImage;
+use Illuminate\Support\Facades\Queue;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+
+class SchedulePosterImageProcessingTest extends TestCase
+{
+    use RefreshDatabase;
+
+    /** @test */
+    function it_queues_a_job_to_process_a_poster_image_if_a_poster_image_is_present()
+    {
+        Queue::fake();
+
+        $concert = \ConcertFactory::createUnpublished([
+            'poster_image_path' => 'posters/example-poster.png',
+        ]);
+
+        ConcertAdded::dispatch($concert);
+
+        Queue::assertPushed(ProcessPosterImage::class, function ($job) use ($concert) {
+            return $job->concert->is($concert);
+        });
+    }
+
+    /** @test */
+    function a_job_is_not_queued_if_a_poster_is_not_present()
+    {
+        Queue::fake();
+
+        $concert = \ConcertFactory::createUnpublished([
+            'poster_image_path' => null,
+        ]);
+
+        ConcertAdded::dispatch($concert);
+
+        Queue::assertNotPushed(ProcessPosterImage::class);
+    }
+}