ZfcRbac\Options\ModuleOptions::setProtectionPolicy PHP Method

    public function setProtectionPolicy($protectionPolicy)
    {
        if ($protectionPolicy !== GuardInterface::POLICY_ALLOW && $protectionPolicy !== GuardInterface::POLICY_DENY) {
            throw new Exception\RuntimeException(sprintf('An invalid protection policy was set. Can only be "deny" or "allow", "%s" given', $protectionPolicy));
        }
        $this->protectionPolicy = (string) $protectionPolicy;
    }

 public function testThrowExceptionForInvalidProtectionPolicy()
 {
     $this->setExpectedException('ZfcRbac\\Exception\\RuntimeException');
     $moduleOptions = new ModuleOptions();
     $moduleOptions->setProtectionPolicy('invalid');
 }