src/Fixer/PhpUnit/PhpUnitNamespacedFixer.php
private function generateReplacement($originalClassName)
    {
        $parts = explode('_', $originalClassName);

        $tokensArray = [];
        while (!empty($parts)) {
            $tokensArray[] = new Token([T_STRING, array_shift($parts)]);
            if (!empty($parts)) {
                $tokensArray[] = new Token([T_NS_SEPARATOR, '\\']);
            }
        }

        return Tokens::fromArray($tokensArray);
    }
private function generateReplacement($originalClassName)
    {
        $parts = explode('_', $originalClassName);

        $tokensArray = [];
        while (!empty($parts)) {
            $tokensArray[] = new Token([T_STRING, array_shift($parts)]);
            if (!empty($parts)) {
                $tokensArray[] = new Token([T_NS_SEPARATOR, '\\']);
            }
        }

        return Tokens::fromArray($tokensArray);
    }
@param string $originalClassName

@return Tokens