Call hook methods only if they exist

Author: Naktibalda

src/TestCase.php

@@ -5,28 +5,32 @@
 
 abstract class TestCase extends \PHPUnit\Framework\TestCase
 {
-    protected abstract function _setUp();
-    protected abstract function _tearDown();
-    public static abstract function _setUpBeforeClass();
-    public static abstract function _tearDownAfterClass();
 
     protected function setUp(): void
     {
-        self::_setUp();
+        if (method_exists($this, '_setUp')) {
+            $this->_setUp();
+        }
     }
 
     protected function tearDown(): void
     {
-        self::_tearDown();
+        if (method_exists($this, '_tearDown')) {
+            $this->_tearDown();
+        }
     }
 
     public static function setUpBeforeClass(): void
     {
-        self::_setUpBeforeClass();
+        if (method_exists(get_called_class(), '_setUpBeforeClass')) {
+            static::_setUpBeforeClass();
+        }
     }
 
     public static function tearDownAfterClass(): void
     {
-        self::_tearDownAfterClass();
+        if (method_exists(get_called_class(), '_tearDownAfterClass')) {
+            static::_tearDownAfterClass();
+        }
     }
-}
+}