svcs: []*v1.Service{newService("test-svc", []string{"2001:db8::"})},
			ipAddresses: []*networkingv1alpha1.IPAddress{
				newIPAddress("2001:db8::", newService("test-svc", []string{"2001:db8::"})),
			},
			cidrs: []*networkingv1alpha1.ServiceCIDR{
				newServiceCIDR("kubernetes", serviceCIDRv4, serviceCIDRv6),
			},
			expectedIPs: []string{"2001:db8::"},
			actions:     [][]string{},

			expectedHost: "1.2.3.4",
			expectedPort: "1234",
		},
		{
			name:         "valid ipv6",
			hostport:     "2001:db8::1",
			expectedHost: "2001:db8::1",
			expectedPort: "",
		},
		{
			name:         "valid ipv6:port",
			hostport:     "[2001:db8::1]:1234",
			expectedHost: "2001:db8::1",
			expectedPort: "1234",
		},
		{
			name:          "invalid port(not a number)",

			// Node2 Score: (50 + 50) / 2 = 50
			name: "nothing scheduled, resources requested, differently sized nodes",
			requestedPod: st.MakePod().
				Req(map[v1.ResourceName]string{"cpu": "1000", "memory": "2000"}).
				Req(map[v1.ResourceName]string{"cpu": "2000", "memory": "3000"}).
				Obj(),
			nodes: []*v1.Node{
				st.MakeNode().Name("node1").Capacity(map[v1.ResourceName]string{"cpu": "4000", "memory": "10000"}).Obj(),

			// Node2 Score: (50 + 50) / 2 = 50
			name: "nothing scheduled, resources requested, differently sized nodes",
			requestedPod: st.MakePod().
				Req(map[v1.ResourceName]string{"cpu": "1000", "memory": "2000"}).
				Req(map[v1.ResourceName]string{"cpu": "2000", "memory": "3000"}).
				Obj(),
			nodes: []*v1.Node{
				st.MakeNode().Name("node1").Capacity(map[v1.ResourceName]string{"cpu": "4000", "memory": "10000"}).Obj(),

// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package rand

import (
	"math"
)

/*
 * Exponential distribution
 *
 * See "The Ziggurat Method for Generating Random Variables"
 * (Marsaglia & Tsang, 2000)
 * https://www.jstatsoft.org/v05/i08/paper [pdf]
 */

const (
	re = 7.69711747013104972
)

// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package rand

import (
	"math"
)

/*
 * Exponential distribution
 *
 * See "The Ziggurat Method for Generating Random Variables"
 * (Marsaglia & Tsang, 2000)
 * https://www.jstatsoft.org/v05/i08/paper [pdf]
 */

const (
	re = 7.69711747013104972
)

		},
		{
			name:     "IPv6",
			cidr:     "2001:db8:1::/116",
			free:     4095,
			released: "2001:db8:1::5",
			outOfRange: []string{
				"2001:db8::1",   // not in 2001:db8:1::/48
				"2001:db8:1::",  // reserved (base address)
				"2001:db8:2::2", // not in 2001:db8:1::/48
			},
			alreadyAllocated: "2001:db8:1::1",
		},
	}
	for _, tc := range testCases {

					ips:      nil,
				},
			},
		},
		{
			name:  "IPv6 multiple",
			cidrs: []string{"2001:db8::/64", "::1/128"},
			itfAddrsPairs: []InterfaceAddrsPair{
				{
					itf:   net.Interface{Index: 0, MTU: 0, Name: "eth0", HardwareAddr: nil, Flags: 0},
					addrs: []net.Addr{&net.IPNet{IP: netutils.ParseIPSloppy("2001:db8::1"), Mask: net.CIDRMask(64, 128)}},
				},
				{

		{"valid IPv4 address", "1.2.3.4", true},
		{"valid IPv6 address", "2001:db8::1", true},
		{"invalid IPv6 CIDR provided instead of IPv6 address", "2001:db8::1/64", false},
		{"invalid hex character in IPv6 address", "2001:xb8::", false},
		{"invalid use of colons in IPv6 address", "2001::db8::", false},
	}
	for _, rt := range tests {
		actual := ValidateIPFromString(rt.ip, nil)

			cfg: &kubeadmapi.Etcd{
				Local: &kubeadmapi.LocalEtcd{
					ExtraArgs: []kubeadmapi.Arg{
						{Name: "listen-metrics-urls", Value: "https://[2001:abcd:bcda::1]:1234,https://[2001:abcd:bcda::2]:2381"},
					},
				},
			},
			isIPv6:           true,
			expectedHostname: "2001:abcd:bcda::1",
			expectedPort:     1234,
			expectedScheme:   v1.URISchemeHTTPS,
		},
		{