where:
        elements << [["a"], ["a", "b"]]
    }

    def "has a nice toString method"() {
        expect:
        PersistentList.of().toString() == "Nil"
        PersistentList.of("a").toString() == "a"
        PersistentList.of("a", "b").toString() == "a : b"
        PersistentList.of("a", "b", "c").toString() == "a : b : c"
        PersistentList.of("a", "b", "c", "d").toString() == "a : b : c : d"
    }

}

// AddFlags adds flags related to admission for a specific APIServer to the specified FlagSet
func (a *AdmissionOptions) AddFlags(fs *pflag.FlagSet) {
	if a == nil {
		return
	}

	fs.StringSliceVar(&a.EnablePlugins, "enable-admission-plugins", a.EnablePlugins, ""+
		"admission plugins that should be enabled in addition to default enabled ones ("+
		strings.Join(a.defaultEnabledPluginNames(), ", ")+"). "+

iptables -t raw -N ISTIO_OUTPUT
iptables -t nat -A PREROUTING -i not-istio-nic -j RETURN
iptables -t nat -A OUTPUT -o not-istio-nic -j RETURN
iptables -t mangle -A PREROUTING -i not-istio-nic -j RETURN
iptables -t mangle -A OUTPUT -o not-istio-nic -j RETURN
iptables -t nat -A ISTIO_INBOUND -p tcp --dport 15008 -j RETURN
iptables -t nat -A ISTIO_REDIRECT -p tcp -j REDIRECT --to-ports 15001
iptables -t nat -A ISTIO_IN_REDIRECT -p tcp -j REDIRECT --to-ports 15006

// If a is not an instance of a generic alias, Origin returns a.
func (a *Alias) Origin() *Alias { return a.orig }

// TypeParams returns the type parameters of the alias type a, or nil.
// A generic Alias and its instances have the same type parameters.
func (a *Alias) TypeParams() *TypeParamList { return a.tparams }

// SetTypeParams sets the type parameters of the alias type a.

// If a is not an instance of a generic alias, Origin returns a.
func (a *Alias) Origin() *Alias { return a.orig }

// TypeParams returns the type parameters of the alias type a, or nil.
// A generic Alias and its instances have the same type parameters.
func (a *Alias) TypeParams() *TypeParamList { return a.tparams }

// SetTypeParams sets the type parameters of the alias type a.

-A ISTIO_OUTPUT -o lo -p tcp ! --dport 53 -m owner ! --gid-owner 1337 -j RETURN
-A ISTIO_OUTPUT -m owner --gid-owner 1337 -j RETURN
-A ISTIO_OUTPUT -p tcp --dport 53 -j REDIRECT --to-ports 15053
-A ISTIO_OUTPUT -d 127.0.0.1/32 -j RETURN
-A ISTIO_OUTPUT -j ISTIO_REDIRECT
-A OUTPUT -p udp -j ISTIO_OUTPUT
-A ISTIO_OUTPUT -p udp --dport 53 -m owner --uid-owner 1337 -j RETURN
-A ISTIO_OUTPUT -p udp --dport 53 -m owner --gid-owner 1337 -j RETURN

iptables -t nat -A ISTIO_OUTPUT -m owner --gid-owner 888 -j RETURN
iptables -t nat -A ISTIO_OUTPUT -m owner --gid-owner ftp -j RETURN
iptables -t nat -A ISTIO_OUTPUT -d 127.0.0.1/32 -j RETURN
iptables -t nat -A OUTPUT -p udp -j ISTIO_OUTPUT
iptables -t raw -A OUTPUT -p udp -j ISTIO_OUTPUT
iptables -t nat -A ISTIO_OUTPUT -p udp --dport 53 -m owner --uid-owner 1337 -j RETURN
iptables -t nat -A ISTIO_OUTPUT -p udp --dport 53 -m owner --gid-owner 1337 -j RETURN

    <span id="action-title"></span>
    <hr>
    <a title="{{.Help.list}}" id="action-source" href="./source">Show source code</a>
    <a title="{{.Help.list}}" id="action-source-tab" href="./source" target="_blank">Show source in new tab</a>
    <hr>
    <a title="{{.Help.focus}}" id="action-focus" href="?">Focus</a>
    <a title="{{.Help.ignore}}" id="action-ignore" href="?">Ignore</a>
    <a title="{{.Help.hide}}" id="action-hide" href="?">Hide</a>

iptables -t nat -A ISTIO_OUTPUT -m owner ! --gid-owner java -m owner ! --gid-owner 202 -j RETURN
iptables -t nat -A ISTIO_OUTPUT -d 127.0.0.1/32 -j RETURN
iptables -t nat -A OUTPUT -p udp -j ISTIO_OUTPUT
iptables -t raw -A OUTPUT -p udp -j ISTIO_OUTPUT
iptables -t nat -A ISTIO_OUTPUT -p udp --dport 53 -m owner --uid-owner 1337 -j RETURN
iptables -t nat -A ISTIO_OUTPUT -p udp --dport 53 -m owner --gid-owner 1337 -j RETURN

time this becomes just

	<a my:data-href="{{. | attrescaper}}"></a>

As a special case, attributes with the namespace "xmlns" are always treated
as containing URLs. Given the excerpts

	<a xmlns:title="{{.}}"></a>
	<a xmlns:href="{{.}}"></a>
	<a xmlns:onclick="{{.}}"></a>

At parse time they become:

	<a xmlns:title="{{. | urlescaper | attrescaper}}"></a>
	<a xmlns:href="{{. | urlescaper | attrescaper}}"></a>