code: protected function applyFix(\SplFileInfo $file, Tokens $tokens)
      {
          $phpUnitTestCaseIndicator = new PhpUnitTestCaseIndicator();
          foreach ($phpUnitTestCaseIndicator->findPhpUnitClasses($tokens) as $indexes) {
              $startIndex = $indexes[0];
              $prevDocCommentIndex = $tokens->getPrevTokenOfKind($startIndex, [[T_DOC_COMMENT]]);
              if (null !== $prevDocCommentIndex) {
                  $startIndex = $prevDocCommentIndex;
              }
              $this->fixPhpUnitClass($tokens, $startIndex, $indexes[1]);
          }
      }
docs: {@inheritdoc}