Add support for phpunit 6.1

Author: snapshotpl

composer.json

@@ -19,8 +19,8 @@
         "php-middleware/double-pass-compatibility": "^1.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^5.7.19",
-        "mikey179/vfsStream": "^1.6",
+        "phpunit/phpunit": "^5.7.19 || ^6.1.3",
+        "mikey179/vfsStream": "^1.6.4",
         "slim/slim": "^3.0",
         "zendframework/zend-expressive": "^1.0 || ^2.0",
         "zendframework/zend-expressive-fastroute": "^1.0 || ^2.0",

test/AbstractMiddlewareRunnerTest.php

@@ -2,11 +2,11 @@
 
 namespace PhpMiddlewareTest\PhpDebugBar;
 
-use PHPUnit_Framework_TestCase;
+use PHPUnit\Framework\TestCase;
 use Psr\Http\Message\ResponseInterface;
 use Psr\Http\Message\ServerRequestInterface;
 
-abstract class AbstractMiddlewareRunnerTest extends PHPUnit_Framework_TestCase
+abstract class AbstractMiddlewareRunnerTest extends TestCase
 {
 
     final public function testAppendJsIntoHtmlContent()

test/PhpDebugBarMiddlewareFactoryTest.php

@@ -4,12 +4,12 @@
 
 use PhpMiddleware\PhpDebugBar\PhpDebugBarMiddleware;
 use PhpMiddleware\PhpDebugBar\PhpDebugBarMiddlewareFactory;
-use PHPUnit_Framework_TestCase;
+use PHPUnit\Framework\TestCase;
 
 /**
  * @author Witold Wasiczko <witold@wasiczko.pl>
  */
-class PhpDebugBarMiddlewareFactoryTest extends PHPUnit_Framework_TestCase
+class PhpDebugBarMiddlewareFactoryTest extends TestCase
 {
     public function testFactory()
     {

test/PhpDebugBarMiddlewareTest.php

@@ -5,7 +5,7 @@
 use DebugBar\JavascriptRenderer;
 use org\bovigo\vfs\vfsStream;
 use PhpMiddleware\PhpDebugBar\PhpDebugBarMiddleware;
-use PHPUnit_Framework_TestCase;
+use PHPUnit\Framework\TestCase;
 use Zend\Diactoros\Response;
 use Zend\Diactoros\ServerRequest;
 use Zend\Diactoros\Uri;
@@ -15,7 +15,7 @@
  *
  * @author Witold Wasiczko <witold@wasiczko.pl>
  */
-class PhpDebugBarMiddlewareTest extends PHPUnit_Framework_TestCase
+class PhpDebugBarMiddlewareTest extends TestCase
 {
     protected $debugbarRenderer;
     protected $middleware;