additional tests for api controllers (#1433)

* added CreatePostControllerTest

* added DeleteDiscussionControllerTest

* added ListDiscussionControllerTest

* added TokenControllerTest

* minor improvement to policy, no need for Carbon object there, added ShowDiscussionControllerTest

* added showDiscussionControllerTest but cant make Guests view the discussion created by a user

* viewing for guests tested, we might need factories

tests/Api/Controller/TokenControllerTest.php

@@ -0,0 +1,44 @@
+<?php
+
+/*
+ * This file is part of Flarum.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Flarum\Tests\Api\Controller;
+
+use Flarum\Api\Controller\TokenController;
+use Flarum\Http\AccessToken;
+use Flarum\Tests\Test\Concerns\RetrievesAuthorizedUsers;
+
+class TokenControllerTest extends ApiControllerTestCase
+{
+    use RetrievesAuthorizedUsers;
+
+    protected $controller = TokenController::class;
+
+    /**
+     * @test
+     */
+    public function user_generates_token()
+    {
+        $user = $this->getNormalUser();
+
+        $response = $this->call($this->controller, null, [], [
+            'identification' => $user->username,
+            'password' => $this->userAttributes['password']
+        ]);
+
+        $data = json_decode($response->getBody()->getContents(), true);
+
+        $this->assertEquals($user->id, $data['userId']);
+
+        $token = $data['token'];
+
+        $this->assertEquals($user->id, AccessToken::findOrFail($token)->user_id);
+    }
+}