title: Route Exists - Testing thinks it doesn't
body: <p>I have a route which works fine in my "local" environment, however when I go to run my unit tests it fails saying that it cannot find the route.  I have tested with <code>php artisan tinker --env=testing</code> and i can execute the route from there just fine.</p>
  
  <p>Any thoughts as to why this might be happening?</p>
  
  <pre><code>➜  l5_media_communities git:(laravel-5.2-testing) ✗ php artisan tinker --env=testing
  Psy Shell v0.7.2 (PHP 5.6.10 — cli) by Justin Hileman
  &gt;&gt;&gt; env
  Current application environment: testing
  &gt;&gt;&gt; route('groups.media.show', [6, 'this-is-a-slug']);
  =&gt; "http://localhost/groups/6/media/this-is-a-slug"
  </code></pre>
  
  <p>This is what I get when I run my test case.</p>
  
  <pre><code>➜  l5_media_communities git:(laravel-5.2-testing) ✗ phpunit
  PHPUnit 5.2.10 by Sebastian Bergmann and contributors.
  
  ..E..                                                               5     / 5 (100%)
  
  Time: 2.74 seconds, Memory: 36.00Mb
  
  There was 1 error:
  
  1) UserEmailNotificationsTest::testActiveFollowerReceivesNewCommentEmailNotification
  ErrorException: Route [groups.media.show] not defined. (View: /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/resources/views/emails/notifications/new-comment-owner.blade.php)
  
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/vendor/laravel/framework/src/Illuminate/Routing/UrlGenerator.php:307
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:44
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php:59
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/vendor/laravel/framework/src/Illuminate/View/View.php:147
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/vendor/laravel/framework/src/Illuminate/View/View.php:118
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/vendor/laravel/framework/src/Illuminate/View/View.php:83
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/app/library/InlineEmail.php:30
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/app/library/mailer.php:261
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/app/library/mailer.php:203
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/app/Listeners/NotificationEventListener.php:43
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/tests/UserEmailNotificationsTest.php:132
  
  Caused by
  InvalidArgumentException: Route [groups.media.show] not defined.
  
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/vendor/laravel/framework/src/Illuminate/Routing/UrlGenerator.php:307
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/vendor/laravel/framework/src/Illuminate/Foundation/helpers.php:616
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/storage/framework/views/d1c9c8d779082ca7537ef8f0e752ed02afc0753e.php:2
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:42
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php:59
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/vendor/laravel/framework/src/Illuminate/View/View.php:147
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/vendor/laravel/framework/src/Illuminate/View/View.php:118
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/vendor/laravel/framework/src/Illuminate/View/View.php:83
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/app/library/InlineEmail.php:30
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/app/library/mailer.php:261
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/app/library/mailer.php:203
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/app/Listeners/NotificationEventListener.php:43
  /Users/jcrawford/Dropbox/Work/Viddler/Repositories/l5_media_communities/tests/UserEmailNotificationsTest.php:132
  
  FAILURES!
  Tests: 5, Assertions: 4, Errors: 1.
  </code></pre>