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net_test.go
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net_test.go
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package iplib
import (
"fmt"
"net"
"testing"
)
var NewNetTests = []struct {
ip net.IP
masklen int
out string
}{
{
net.ParseIP("192.168.0.0"), 32, "192.168.0.0/32",
},
{
net.ParseIP("192.168.0.0"), 24, "192.168.0.0/24",
},
{
net.ParseIP("192.168.0.7"), 32, "192.168.0.7/32",
},
{
net.ParseIP("192.168.0.7"), 24, "192.168.0.0/24",
},
{
net.ParseIP("2001:db8::"), 64, "2001:db8::/64",
},
{
net.ParseIP("::ffff:c0a8:0101"), 16, "192.168.0.0/16",
},
}
func TestNewNet(t *testing.T) {
for i, tt := range NewNetTests {
xnet := NewNet(tt.ip, tt.masklen)
_, pnet, _ := net.ParseCIDR(tt.out)
if xnet.String() != pnet.String() {
t.Errorf("[%d] NewNet(%s, %d) expected %s got %s", i, tt.ip.String(), tt.masklen, pnet.String(), xnet.String())
}
}
}
var NewNetBetweenTests = []struct {
start net.IP
end net.IP
xnet string
exact bool
err error
netslen int
}{
{ // 0
net.ParseIP("192.168.0.255"), net.ParseIP("10.0.0.0"),
"", false, ErrNoValidRange, 0,
},
{
net.ParseIP("192.168.0.255"), net.ParseIP("2001:db8:0:1::"),
"", false, ErrNoValidRange, 0,
},
{
net.ParseIP("2001:db8:0:1::"), net.ParseIP("192.168.0.255"),
"", false, ErrNoValidRange, 0,
},
{
net.ParseIP("2001:db8:0:1::"), net.ParseIP("2001:db8::"),
"", false, ErrNoValidRange, 0,
},
{
net.ParseIP("192.168.0.255"), net.ParseIP("192.168.0.255"),
"192.168.0.255/32", true, nil, 1,
},
{ // 5
net.ParseIP("2001:db8:0:1::"), net.ParseIP("2001:db8:0:1::"),
"2001:db8:0:1::/128", true, nil, 1,
},
{
net.ParseIP("192.168.1.0"), net.ParseIP("192.168.2.0"),
"192.168.1.0/24", false, nil, 2,
},
{
net.ParseIP("2001:db8:1::"), net.ParseIP("2001:db8:2::"),
"2001:db8:1::/48", false, nil, 2,
},
{
net.ParseIP("192.168.1.0"), net.ParseIP("192.168.1.255"),
"192.168.1.0/24", true, nil, 1,
},
{
net.ParseIP("2001:db8:1::"), net.ParseIP("2001:db8:1:ffff:ffff:ffff:ffff:ffff"),
"2001:db8:1::/48", true, nil, 1,
},
{ // 10
net.ParseIP("192.168.1.0"), net.ParseIP("192.168.1.1"),
"192.168.1.0/31", true, nil, 1,
},
{
net.ParseIP("2001:db8:1::"), net.ParseIP("2001:db8:1::1"),
"2001:db8:1::/127", true, nil, 1,
},
{
net.ParseIP("192.168.0.255"), net.ParseIP("192.168.1.2"),
"192.168.0.255/32", false, nil, 3,
},
{
net.ParseIP("2001:db8:0:ffff:ffff:ffff:ffff:ffff"), net.ParseIP("2001:db8:1::1"),
"2001:db8:0:ffff:ffff:ffff:ffff:ffff/128", false, nil, 2,
},
{
net.ParseIP("10.0.0.0"), net.ParseIP("255.0.0.0"),
"10.0.0.0/7", false, nil, 13,
},
{ // 15
net.ParseIP("2001:db8::"), net.ParseIP("2001:db8:ffff:ffff:ffff:ffff:ffff::"),
"2001:db8::/33", false, nil, 81,
},
}
func TestNewNetBetween(t *testing.T) {
for i, tt := range NewNetBetweenTests {
xnet, exact, err := NewNetBetween(tt.start, tt.end)
if e := compareErrors(err, tt.err); len(e) > 0 {
t.Errorf("[%d] NewNetBetween(%s, %s) expected error '%v', got '%v'", i, tt.start, tt.end, tt.err, err)
} else if tt.err == nil {
if xnet == nil && len(tt.xnet) != 0 {
t.Fatalf("[%d] should not be nil!", i)
}
if xnet.String() != tt.xnet {
t.Errorf("[%d] NewNetBetween(%s, %s) expected '%s', got '%s'", i, tt.start, tt.end, tt.xnet, xnet.String())
}
if exact != tt.exact {
t.Errorf("[%d] NewNetBetween(%s, %s) expected '%t', got '%t'", i, tt.start, tt.end, tt.exact, exact)
}
}
}
}
func TestAllNetsBetween(t *testing.T) {
for i, tt := range NewNetBetweenTests {
//t.Logf("[%d] nets between %s and %s", i, tt.start, tt.end)
xnets, err := AllNetsBetween(tt.start, tt.end)
//t.Logf("[%d] got %+v, '%v'", i, xnets, err)
if e := compareErrors(err, tt.err); len(e) > 0 {
t.Errorf("[%d] expected error '%v', got '%v'", i, tt.err, err)
}
if tt.err == nil {
if len(xnets) != tt.netslen {
t.Logf("[%d] AllNetsBetween(%s, %s) [%+v]", i, tt.start, tt.end, xnets)
t.Errorf("[%d] expected %d networks, got %d", i, tt.netslen, len(xnets))
}
}
}
}
var ParseCIDRTests = []struct {
s string
xnet string
err error
ver int
}{
{"not.legit/22", "", fmt.Errorf("invalid CIDR address: not.legit/22"), 0},
{"192.168.1.1", "", fmt.Errorf("invalid CIDR address: 192.168.1.1"), 0},
{"192.168.1.0/24", "192.168.1.0/24", nil, 4},
{"2001:db8::/64", "2001:db8::/64", nil, 6},
{"::ffff:c0a8:0101/32", "192.168.1.1/32", nil, 4},
{"::ffff:c0a9:0101/16", "192.169.0.0/16", nil, 4},
{"::ffff:c0a8:0101/64", "::/64", nil, 6},
}
func TestParseCIDR(t *testing.T) {
for i, tt := range ParseCIDRTests {
_, n, err := ParseCIDR(tt.s)
if e := compareErrors(err, tt.err); len(e) > 0 {
t.Errorf("[%d] ParseCIDR(%s) expected error '%v', got '%v'", i, tt.s, tt.err, err)
} else if tt.err == nil {
if n.Version() != tt.ver {
t.Errorf("[%d] expected IPNet version '%d' got '%d'", i, tt.ver, n.Version())
}
if n.String() != tt.xnet {
fmt.Println(n)
t.Errorf("[%d] expected '%s' for '%s'", i, tt.xnet, n.String())
}
}
}
}