fixed interfaces

Author: DavertMik

src/Init.php

@@ -9,7 +9,7 @@ class Init
      */
     public static function init()
     {
-        require_once __DIR__ . DIRECTORY_SEPARATOR . 'shim.php';
         require_once __DIR__ . DIRECTORY_SEPARATOR . 'phpunit7-interfaces.php';
+        require_once __DIR__ . DIRECTORY_SEPARATOR . 'shim.php';
     }
 }

src/phpunit7-interfaces.php

@@ -8,10 +8,12 @@ interface Test {
             public function run(TestResult $result = null);
         }
 
-        interface SelfDescribing {
+    }
+    if (!interface_exists(SelfDescribing::class, false)) {
+        interface SelfDescribing
+        {
             public function toString();
         }
-
     }
 
 }