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#!/usr/bin/ruby
require "netaddr"
require 'test/unit'
class TestIPv6Net < Test::Unit::TestCase
def test_new
ip = NetAddr::IPv6.parse("1::")
m128 = NetAddr::Mask128.new(24)
net = NetAddr::IPv6Net.new(ip,m128)
assert_equal("1::/24", net.to_s)
assert_equal("1::/64", NetAddr::IPv6Net.new(ip,nil).to_s)
ip = NetAddr::IPv6.parse("::")
assert_equal("::/128", NetAddr::IPv6Net.new(ip,nil).to_s)
end
def test_parse
assert_equal("1::/24", NetAddr::IPv6Net.parse("1::1/24").to_s)
assert_equal("::/128", NetAddr::IPv6Net.parse("::").to_s) # default /128
assert_equal("1::/64", NetAddr::IPv6Net.parse("1::1").to_s) # default /64
end
def test_cmp
net1 = NetAddr::IPv6Net.parse("1:1::/32")
net2 = NetAddr::IPv6Net.parse("1::/32")
net3 =NetAddr::IPv6Net.parse("1:2::/32")
net4 = NetAddr::IPv6Net.parse("1:1::/33")
net5 = NetAddr::IPv6Net.parse("1:1::/32")
assert_equal(1, net1.cmp(net2)) # ip less
assert_equal(-1, net1.cmp(net3))# ip greater
assert_equal(-1, net4.cmp(net1)) # ip eq, mask less
assert_equal(1, net1.cmp(net4)) # ip eq, mask greater
assert_equal(0, net1.cmp(net5)) # eq
end
def test_contains
net = NetAddr::IPv6Net.parse("1:8::/29")
ip1 = NetAddr::IPv6.parse("1:f::")
ip2 = NetAddr::IPv6.parse("1:10::")
ip3 = NetAddr::IPv6.parse("1:7::")
assert_equal(true, net.contains(ip1))
assert_equal(false, net.contains(ip2))
assert_equal(false, net.contains(ip3))
end
def test_fill
# filter supernet. remove subnets of subnets. basic fwd fill.
parent = NetAddr::IPv6Net.parse("ff00::/8")
nets = []
["ff00::/8", "ff00::/9", "ff08::/14", "fe00::/7", "ff20::/11", "ff20::/12"].each do |net|
nets.push(NetAddr::IPv6Net.parse(net))
end
expect = ["ff00::/9", "ff80::/9"]
i = 0
parent.fill(nets).each do |net|
assert_equal(expect[i],net.to_s)
i += 1
end
# basic backfill
parent = NetAddr::IPv6Net.parse("8000::/1")
nets = []
["c000::/2"].each do |net|
nets.push(NetAddr::IPv6Net.parse(net))
end
expect = ["8000::/2","c000::/2"]
i = 0
parent.fill(nets).each do |net|
assert_equal(expect[i],net.to_s)
i += 1
end
# basic fwd fill with non-contiguous subnets
parent = NetAddr::IPv6Net.parse("ff00::/121")
nets = []
["ff00::/126", "ff00::/120"].each do |net|
nets.push(NetAddr::IPv6Net.parse(net))
end
expect = ["ff00::/126", "ff00::4/126", "ff00::8/125", "ff00::10/124", "ff00::20/123", "ff00::40/122"]
i = 0
parent.fill(nets).each do |net|
assert_equal(expect[i],net.to_s)
i += 1
end
# basic backfill. complex fwd fill that uses 'shrink' of the proposed ffff:ffff:ffff:fff8::/62 subnet. designed to cross the /64 bit boundary.
parent = NetAddr::IPv6Net.parse("fff:ffff:ffff:fff0::/60")
nets = []
["ffff:ffff:ffff:fff4::/62", "ffff:ffff:ffff:fffb::/65"].each do |net|
nets.push(NetAddr::IPv6Net.parse(net))
end
expect = ["ffff:ffff:ffff:fff0::/62", "ffff:ffff:ffff:fff4::/62", "ffff:ffff:ffff:fff8::/63", "ffff:ffff:ffff:fffa::/64", "ffff:ffff:ffff:fffb::/65",
"ffff:ffff:ffff:fffb:8000::/65", "ffff:ffff:ffff:fffc::/62"]
i = 0
parent.fill(nets).each do |net|
assert_equal(expect[i],net.to_s)
i += 1
end
# list contains the supernet
parent = NetAddr::IPv6Net.parse("ffff::/16")
nets = []
["ffff::/16"].each do |net|
nets.push(NetAddr::IPv6Net.parse(net))
end
expect = []
i = 0
parent.fill(nets).each do |net|
assert_equal(expect[i],net.to_s)
i += 1
end
end
def test_next
assert_equal("::2/127", NetAddr::IPv6Net.parse("::/127").next.to_s)
assert_equal("::8/125", NetAddr::IPv6Net.parse("::4/126").next.to_s)
assert_equal("0:0:0:2::/63", NetAddr::IPv6Net.parse("::1:8000:0:0:0/65").next.to_s)
assert_equal("0:0:0:3::/64", NetAddr::IPv6Net.parse("::2:8000:0:0:0/65").next.to_s)
assert_nil(NetAddr::IPv6Net.parse("ffff::/16").next)
end
def test_next_sib
assert_equal("0:0:0:2::/65", NetAddr::IPv6Net.parse("::1:8000:0:0:0/65",).next_sib.to_s)
assert_equal("0:0:0:2::/64", NetAddr::IPv6Net.parse("0:0:0:1::/64",).next_sib.to_s)
assert_equal("2::/16", NetAddr::IPv6Net.parse("1::/16").next_sib.to_s)
assert_nil(NetAddr::IPv6Net.parse("ffff::/16").next_sib)
end
def test_nth
assert_equal("1::", NetAddr::IPv6Net.parse("1::0/64").nth(0).to_s)
assert_equal("::", NetAddr::IPv6Net.parse("::/127").nth(0).to_s)
assert_equal("::1", NetAddr::IPv6Net.parse("::/127").nth(1).to_s)
assert_nil(NetAddr::IPv6Net.parse("::/127").nth(2))
end
def test_nth_subnet
assert_equal("1::/30", NetAddr::IPv6Net.parse("1::/24").nth_subnet(30,0).to_s)
assert_nil(NetAddr::IPv6Net.parse("1::").nth_subnet(26,4))
end
def test_prev
assert_equal("1::/125", NetAddr::IPv6Net.parse("1::8/126").prev.to_s)
assert_equal("f::/63", NetAddr::IPv6Net.parse("f:0:0:2::/63").prev.to_s)
assert_equal("e::/16", NetAddr::IPv6Net.parse("f::/63").prev.to_s)
assert_nil(NetAddr::IPv6Net.parse("::").prev)
end
def test_prev_sib
assert_equal("0:0:0:1::/64", NetAddr::IPv6Net.parse("0:0:0:2::/64").prev_sib.to_s)
assert_equal("1::/16", NetAddr::IPv6Net.parse("2::/16").prev_sib.to_s)
assert_nil(NetAddr::IPv6Net.parse("::/64").prev_sib)
end
def test_rel
net1 = NetAddr::IPv6Net.parse("1::/63")
net2 = NetAddr::IPv6Net.parse("1::/64")
net3 = NetAddr::IPv6Net.parse("1::/60")
net4 = NetAddr::IPv6Net.parse("1:0:0:1::/64")
net5 = NetAddr::IPv6Net.parse("2::/64")
assert_equal(1, net1.rel(net2)) # net eq, supernet
assert_equal(-1, net2.rel(net1)) # net eq, subnet
assert_equal(0, net2.rel(net2)) # eq
assert_equal(1, net3.rel(net4)) # net ne, supernet
assert_equal(-1, net4.rel(net3)) # net ne, subnet
assert_nil(net2.rel(net5)) # unrelated
end
def test_resize
assert_equal("1::/64", NetAddr::IPv6Net.parse("1::/63").resize(64).to_s)
end
def test_subnet_count
assert_equal(2, NetAddr::IPv6Net.parse("ff::/8").subnet_count(9))
assert_equal(4, NetAddr::IPv6Net.parse("ff::/8").subnet_count(10))
assert_equal(0, NetAddr::IPv6Net.parse("ff::/8").subnet_count(8))
assert_equal(0, NetAddr::IPv6Net.parse("::/0").subnet_count(128))
end
def test_summ
net1 = NetAddr::IPv6Net.parse("1::/128")
net2 = NetAddr::IPv6Net.parse("1::1/128")
net3 = NetAddr::IPv6Net.parse("1::0/128")
net4 = NetAddr::IPv6Net.parse("1::/16")
net5 = NetAddr::IPv6Net.parse("2::/16")
net6 = NetAddr::IPv6Net.parse("10::/12")
net7 = NetAddr::IPv6Net.parse("20::/12")
net8 = NetAddr::IPv6Net.parse("8::/17")
assert_equal("1::/127", net1.summ(net2).to_s) # lesser to greater
assert_equal("1::/127", net2.summ(net3).to_s) # greater to lesser
assert_nil(net4.summ(net5)) # different nets
assert_nil(net6.summ(net7)) # consecutive but not within bit boundary
assert_nil(net4.summ(net8)) # within bit boundary, but not same size
end
end
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