Updated dependencies

Author: oscarotero

composer.json

@@ -22,10 +22,10 @@
         "middlewares/utils": "~0.8"
     },
     "require-dev": {
-        "phpunit/phpunit": "^5.5",
+        "phpunit/phpunit": "^5.5 || ^6.0",
         "zendframework/zend-diactoros": "^1.3",
         "friendsofphp/php-cs-fixer": "^2.0",
-        "squizlabs/php_codesniffer": "^2.7"
+        "squizlabs/php_codesniffer": "^3.0"
     },
     "autoload": {
         "psr-4": {

tests/TrailingSlashTest.php

@@ -2,11 +2,12 @@
 
 namespace Middlewares\Tests;
 
+use PHPUnit\Framework\TestCase;
 use Middlewares\TrailingSlash;
 use Middlewares\Utils\Dispatcher;
 use Middlewares\Utils\Factory;
 
-class TrailingSlashTest extends \PHPUnit_Framework_TestCase
+class TrailingSlashTest extends TestCase
 {
     public function removeProvider()
     {
@@ -80,4 +81,4 @@ public function testRedirect()
         $this->assertEquals(301, (string) $response->getStatusCode());
         $this->assertEquals('/foo/bar', $response->getHeaderLine('location'));
     }
-}
+}