fix build

Author: staabm

src/Framework/TestBuilder.php

@@ -56,10 +56,9 @@ public function build(ReflectionClass $theClass, string $methodName, array $grou
             );
         }
 
+        /** @psalm-suppress UnsafeInstantiation */
         $test = new $className($methodName);
 
-        assert($test instanceof TestCase);
-
         $this->configureTestCase(
             $test,
             $this->shouldTestMethodBeRunInSeparateProcess($className, $methodName),
@@ -89,10 +88,9 @@ private function buildDataProviderTestSuite(string $methodName, string $classNam
         );
 
         foreach ($data as $_dataName => $_data) {
+            /** @psalm-suppress UnsafeInstantiation */
             $_test = new $className($methodName);
 
-            assert($_test instanceof TestCase);
-
             $_test->setData($_dataName, $_data);
 
             $this->configureTestCase(