Updated tests namespace to be ps4-valid. Added tests for flooding exception, fixed broken code

tests/Flarum/Api/Handler/FloodingExceptionHandlerTest.php

@@ -0,0 +1,22 @@
+<?php
+namespace tests\Flarum\Api\Handler;
+
+use Flarum\Api\Handler\FloodingExceptionHandler;
+use Flarum\Core\Exception\FloodingException;
+use Tests\Test\TestCase;
+
+class FloodingExceptionHandlerTest extends TestCase
+{
+    private $handler;
+
+    public function init()
+    {
+        $this->handler = new FloodingExceptionHandler;
+    }
+
+    public function test_it_handles_recognisable_exceptions()
+    {
+        $this->assertFalse($this->handler->manages(new \Exception));
+        $this->assertTrue($this->handler->manages(new FloodingException));
+    }
+}