Webmozart\Console\ConsoleApplication::validateCommandName PHP Method

    private function validateCommandName(CommandConfig $config)
    {
        $name = $config->getName();
        if (!$name) {
            throw CannotAddCommandException::nameEmpty();
        }
        if ($this->commands->contains($name)) {
            throw CannotAddCommandException::nameExists($name);
        }
    }