addr_test.go 5.21 KB
Newer Older
Juan Batiz-Benet's avatar
Juan Batiz-Benet committed
1 2 3 4 5
package addrutil

import (
	"testing"

Jeromy's avatar
Jeromy committed
6 7
	ma "github.com/jbenet/go-multiaddr"
	manet "github.com/jbenet/go-multiaddr-net"
Juan Batiz-Benet's avatar
Juan Batiz-Benet committed
8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232
)

func newMultiaddr(t *testing.T, s string) ma.Multiaddr {
	maddr, err := ma.NewMultiaddr(s)
	if err != nil {
		t.Fatal(err)
	}
	return maddr
}

func TestFilterAddrs(t *testing.T) {

	bad := []ma.Multiaddr{
		newMultiaddr(t, "/ip4/1.2.3.4/udp/1234"),           // unreliable
		newMultiaddr(t, "/ip4/1.2.3.4/udp/1234/sctp/1234"), // not in manet
		newMultiaddr(t, "/ip4/1.2.3.4/udp/1234/utp"),       // utp is broken
		newMultiaddr(t, "/ip4/1.2.3.4/udp/1234/udt"),       // udt is broken on arm
		newMultiaddr(t, "/ip6/fe80::1/tcp/1234"),           // link local
		newMultiaddr(t, "/ip6/fe80::100/tcp/1234"),         // link local
	}

	good := []ma.Multiaddr{
		newMultiaddr(t, "/ip4/127.0.0.1/tcp/1234"),
		newMultiaddr(t, "/ip6/::1/tcp/1234"),
	}

	goodAndBad := append(good, bad...)

	// test filters

	for _, a := range bad {
		if AddrUsable(a, false) {
			t.Errorf("addr %s should be unusable", a)
		}
		if AddrUsable(a, true) {
			t.Errorf("addr %s should be unusable", a)
		}
	}

	for _, a := range good {
		if !AddrUsable(a, false) {
			t.Errorf("addr %s should be usable", a)
		}
		if !AddrUsable(a, true) {
			t.Errorf("addr %s should be usable", a)
		}
	}

	subtestAddrsEqual(t, FilterUsableAddrs(bad), []ma.Multiaddr{})
	subtestAddrsEqual(t, FilterUsableAddrs(good), good)
	subtestAddrsEqual(t, FilterUsableAddrs(goodAndBad), good)
}

func subtestAddrsEqual(t *testing.T, a, b []ma.Multiaddr) {
	if len(a) != len(b) {
		t.Error(t)
	}

	in := func(addr ma.Multiaddr, l []ma.Multiaddr) bool {
		for _, addr2 := range l {
			if addr.Equal(addr2) {
				return true
			}
		}
		return false
	}

	for _, aa := range a {
		if !in(aa, b) {
			t.Errorf("%s not in %s", aa, b)
		}
	}
}

func TestInterfaceAddrs(t *testing.T) {
	addrs, err := InterfaceAddresses()
	if err != nil {
		t.Fatal(err)
	}

	if len(addrs) < 1 {
		t.Error("no addresses")
	}

	for _, a := range addrs {
		if manet.IsIP6LinkLocal(a) {
			t.Error("should not return ip link local addresses", a)
		}
	}

	if len(addrs) < 1 {
		t.Error("no good interface addrs")
	}
}

func TestResolvingAddrs(t *testing.T) {

	unspec := []ma.Multiaddr{
		newMultiaddr(t, "/ip4/0.0.0.0/tcp/1234"),
		newMultiaddr(t, "/ip4/1.2.3.4/tcp/1234"),
		newMultiaddr(t, "/ip6/::/tcp/1234"),
		newMultiaddr(t, "/ip6/::100/tcp/1234"),
	}

	iface := []ma.Multiaddr{
		newMultiaddr(t, "/ip4/127.0.0.1"),
		newMultiaddr(t, "/ip4/10.20.30.40"),
		newMultiaddr(t, "/ip6/::1"),
		newMultiaddr(t, "/ip6/::f"),
	}

	spec := []ma.Multiaddr{
		newMultiaddr(t, "/ip4/127.0.0.1/tcp/1234"),
		newMultiaddr(t, "/ip4/10.20.30.40/tcp/1234"),
		newMultiaddr(t, "/ip4/1.2.3.4/tcp/1234"),
		newMultiaddr(t, "/ip6/::1/tcp/1234"),
		newMultiaddr(t, "/ip6/::f/tcp/1234"),
		newMultiaddr(t, "/ip6/::100/tcp/1234"),
	}

	actual, err := ResolveUnspecifiedAddresses(unspec, iface)
	if err != nil {
		t.Fatal(err)
	}

	for i, a := range actual {
		if !a.Equal(spec[i]) {
			t.Error(a, " != ", spec[i])
		}
	}

	ip4u := []ma.Multiaddr{newMultiaddr(t, "/ip4/0.0.0.0")}
	ip4i := []ma.Multiaddr{newMultiaddr(t, "/ip4/1.2.3.4")}

	ip6u := []ma.Multiaddr{newMultiaddr(t, "/ip6/::")}
	ip6i := []ma.Multiaddr{newMultiaddr(t, "/ip6/::1")}

	if _, err := ResolveUnspecifiedAddress(ip4u[0], ip6i); err == nil {
		t.Fatal("should have failed")
	}
	if _, err := ResolveUnspecifiedAddress(ip6u[0], ip4i); err == nil {
		t.Fatal("should have failed")
	}

	if _, err := ResolveUnspecifiedAddresses(ip6u, ip4i); err == nil {
		t.Fatal("should have failed")
	}
	if _, err := ResolveUnspecifiedAddresses(ip4u, ip6i); err == nil {
		t.Fatal("should have failed")
	}

}

func TestWANShareable(t *testing.T) {

	wanok := []ma.Multiaddr{
		newMultiaddr(t, "/ip4/1.2.3.4/tcp/1234"),
		newMultiaddr(t, "/ip6/abcd::1/tcp/1234"),
	}

	wanbad := []ma.Multiaddr{
		newMultiaddr(t, "/ip4/127.0.0.1/tcp/1234"),
		newMultiaddr(t, "/ip4/0.0.0.0/tcp/1234"),
		newMultiaddr(t, "/ip6/::1/tcp/1234"),
		newMultiaddr(t, "/ip6/::/tcp/1234"),
		newMultiaddr(t, "/ip6/fe80::1/tcp/1234"),
		newMultiaddr(t, "/ip6/fe80::/tcp/1234"),
	}

	for _, a := range wanok {
		if !AddrIsShareableOnWAN(a) {
			t.Error("should be true", a)
		}
	}

	for _, a := range wanbad {
		if AddrIsShareableOnWAN(a) {
			t.Error("should be false", a)
		}
	}

	wanok2 := WANShareableAddrs(wanok)
	if len(wanok) != len(wanok2) {
		t.Error("should be the same")
	}

	wanbad2 := WANShareableAddrs(wanbad)
	if len(wanbad2) != 0 {
		t.Error("should be zero")
	}
}

func TestSubtract(t *testing.T) {

	a := []ma.Multiaddr{
		newMultiaddr(t, "/ip4/127.0.0.1/tcp/1234"),
		newMultiaddr(t, "/ip4/0.0.0.0/tcp/1234"),
		newMultiaddr(t, "/ip6/::1/tcp/1234"),
		newMultiaddr(t, "/ip6/::/tcp/1234"),
		newMultiaddr(t, "/ip6/fe80::1/tcp/1234"),
		newMultiaddr(t, "/ip6/fe80::/tcp/1234"),
	}

	b := []ma.Multiaddr{
		newMultiaddr(t, "/ip4/127.0.0.1/tcp/1234"),
		newMultiaddr(t, "/ip6/::1/tcp/1234"),
		newMultiaddr(t, "/ip6/fe80::1/tcp/1234"),
	}

	c1 := []ma.Multiaddr{
		newMultiaddr(t, "/ip4/0.0.0.0/tcp/1234"),
		newMultiaddr(t, "/ip6/::/tcp/1234"),
		newMultiaddr(t, "/ip6/fe80::/tcp/1234"),
	}

	c2 := Subtract(a, b)
	if len(c1) != len(c2) {
		t.Error("should be the same")
	}
	for i, ca := range c1 {
		if !c2[i].Equal(ca) {
			t.Error("should be the same", ca, c2[i])
		}
	}
}