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iputil_test.go
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iputil_test.go
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package iputil
import (
"net"
"testing"
)
func TestSubnetEqualSubnetTrue(t *testing.T) {
_, net1, _ := net.ParseCIDR("10.1.5.0/24")
_, net2, _ := net.ParseCIDR("10.1.5.0/24")
if !SubnetEqualSubnet(net1, net2) {
t.Errorf("Expected %v to equal %v", net1.String(), net2.String())
}
}
func TestSubnetEqualSubnetFalseDifferentMask(t *testing.T) {
_, net1, _ := net.ParseCIDR("10.1.0.0/16")
_, net2, _ := net.ParseCIDR("10.1.0.0/24")
if SubnetEqualSubnet(net1, net2) {
t.Errorf("Expected %v to not equal %v", net1.String(), net2.String())
}
}
func TestSubnetEqualSubnetFalseDifferentNet(t *testing.T) {
_, net1, _ := net.ParseCIDR("10.1.0.0/16")
_, net2, _ := net.ParseCIDR("10.2.0.0/16")
if SubnetEqualSubnet(net1, net2) {
t.Errorf("Expected %v to not equal %v", net1.String(), net2.String())
}
}
func TestSubnetEqualSubnetTrueIpInNet(t *testing.T) {
_, net1, _ := net.ParseCIDR("10.1.5.6/16")
ip2, net2, _ := net.ParseCIDR("10.1.2.1/16")
net2.IP = ip2
if !SubnetEqualSubnet(net1, net2) {
t.Errorf("Expected %v to not equal %v", net1.String(), net2.String())
}
}
func TestSubnetEqualSubnetTrueBothNil(t *testing.T) {
if !SubnetEqualSubnet(nil, nil) {
t.Error("Expected nil subnets to be equal.")
}
}
func TestSubnetEqualSubnetFalseN1Nil(t *testing.T) {
_, net2, _ := net.ParseCIDR("10.1.5.0/24")
if SubnetEqualSubnet(nil, net2) {
t.Errorf("Expected nil not equal %v", net2)
}
}
func TestSubnetEqualSubnetFalseN2Nil(t *testing.T) {
_, net1, _ := net.ParseCIDR("10.1.5.0/24")
if SubnetEqualSubnet(net1, nil) {
t.Errorf("Expected %v not equal nil", net1)
}
}
func TestSubnetEqualSubnetTrueN1NilN2Global(t *testing.T) {
_, net2, _ := net.ParseCIDR("0.0.0.0/0")
if !SubnetEqualSubnet(nil, net2) {
t.Errorf("Expected nil equal %v", net2)
}
}
func TestSubnetEqualSubnetTrueN1GlobalN2Nil(t *testing.T) {
_, net1, _ := net.ParseCIDR("0.0.0.0/0")
if !SubnetEqualSubnet(net1, nil) {
t.Errorf("Expected %v equal nil", net1)
}
}
func TestSubnetContainSubnetTrueBothNil(t *testing.T) {
if !SubnetContainsSubnet(nil, nil) {
t.Error("Expected nil contains nil.")
}
}
func TestSubnetContainSubnetFalseN1Nil(t *testing.T) {
_, net2, _ := net.ParseCIDR("10.1.5.0/24")
if !SubnetContainsSubnet(nil, net2) {
t.Errorf("Expected nil contains %v", net2)
}
}
func TestSubnetContainSubnetFalseN2Nil(t *testing.T) {
_, net1, _ := net.ParseCIDR("10.1.5.0/24")
if SubnetContainsSubnet(net1, nil) {
t.Errorf("Expected %v not contains nil", net1)
}
}
func TestSubnetContainSubnetTrueN1NilN2Global(t *testing.T) {
_, net2, _ := net.ParseCIDR("0.0.0.0/0")
if !SubnetContainsSubnet(nil, net2) {
t.Errorf("Expected nil contains %v", net2)
}
}
func TestSubnetContainSubnetTrueN1GlobalN2Nil(t *testing.T) {
_, net1, _ := net.ParseCIDR("0.0.0.0/0")
if !SubnetContainsSubnet(net1, nil) {
t.Errorf("Expected %v contains nil", net1)
}
}
func TestSubnetContainSubnetTrueEqual(t *testing.T) {
_, net1, _ := net.ParseCIDR("10.1.5.0/24")
_, net2, _ := net.ParseCIDR("10.1.5.0/24")
if !SubnetContainsSubnet(net1, net2) {
t.Errorf("Expected %v to contain %v", net1.String(), net2.String())
}
}
func TestSubnetContainSubnetTrueSmaller(t *testing.T) {
_, net1, _ := net.ParseCIDR("10.1.5.0/24")
_, net2, _ := net.ParseCIDR("10.1.5.128/25")
if !SubnetContainsSubnet(net1, net2) {
t.Errorf("Expected %v to contain %v", net1.String(), net2.String())
}
}
func TestSubnetContainSubnetFalseLarger(t *testing.T) {
_, net1, _ := net.ParseCIDR("10.1.5.0/25")
_, net2, _ := net.ParseCIDR("10.1.5.0/24")
if SubnetContainsSubnet(net1, net2) {
t.Errorf("Expected %v to contain %v", net1.String(), net2.String())
}
}
func TestSubnetContainSubnetFalseDifferent(t *testing.T) {
_, net1, _ := net.ParseCIDR("10.1.5.0/24")
_, net2, _ := net.ParseCIDR("10.1.6.0/24")
if SubnetContainsSubnet(net1, net2) {
t.Errorf("Expected %v to contain %v", net1.String(), net2.String())
}
}
func TestLastAddr(t *testing.T) {
_, net1, _ := net.ParseCIDR("10.1.6.0/24")
lr := net.ParseIP("10.1.6.255")
if !LastAddr(net1).Equal(lr) {
t.Errorf("Expected %v to equal %v", LastAddr(net1).String(), lr.String())
}
}
func TestLastAddrLongMask(t *testing.T) {
net1 := &net.IPNet{
IP: net.IP{10, 1, 6, 0},
Mask: net.IPMask{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 0},
}
lr := net.ParseIP("10.1.6.255")
if !LastAddr(net1).Equal(lr) {
t.Errorf("Expected %v to equal %v", FirstAddr(net1).String(), lr.String())
}
}
func TestFirstAddr(t *testing.T) {
_, net1, _ := net.ParseCIDR("10.1.6.0/24")
lr := net.ParseIP("10.1.6.0")
if !FirstAddr(net1).Equal(lr) {
t.Errorf("Expected %v to equal %v", FirstAddr(net1).String(), lr.String())
}
}
func TestFirstAddrLongMask(t *testing.T) {
net1 := &net.IPNet{
IP: net.IP{10, 1, 6, 0},
Mask: net.IPMask{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 0},
}
lr := net.ParseIP("10.1.6.0")
if !FirstAddr(net1).Equal(lr) {
t.Errorf("Expected %v to equal %v", FirstAddr(net1).String(), lr.String())
}
}
func TestNetworkID(t *testing.T) {
ip1, net1, _ := net.ParseCIDR("10.1.6.88/24")
net1.IP = ip1
_, net2, _ := net.ParseCIDR("10.1.6.0/24")
nid := NetworkID(net1)
if !SubnetEqualSubnet(nid, net2) {
t.Errorf("Expected %v to equal %v", nid.String(), net2.String())
}
}
func TestRandomAddr(t *testing.T) {
_, net1, _ := net.ParseCIDR("10.1.6.0/24")
for i := 1; i <= 10; i++ {
rip := RandAddr(net1)
if !net1.Contains(rip) {
t.Errorf("IP %v outside subnet %v", rip.String(), net1.String())
}
}
}
func TestRandomAddrLongMask(t *testing.T) {
net1 := &net.IPNet{
IP: net.IP{10, 1, 6, 0},
Mask: net.IPMask{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 0},
}
for i := 1; i <= 10; i++ {
rip := RandAddr(net1)
if !net1.Contains(rip) {
t.Errorf("IP %v outside subnet %v", rip.String(), net1.String())
}
}
}
func TestIPAdd(t *testing.T) {
ip := net.ParseIP("10.1.5.0")
r := net.ParseIP("10.1.5.1")
if !IPAdd(ip, 1).Equal(r) {
t.Errorf("%v should equal %v", ip.String(), r.String())
}
}
func TestIPAddCarryover(t *testing.T) {
ip := net.ParseIP("10.1.5.255")
r := net.ParseIP("10.1.6.4")
if !IPAdd(ip, 5).Equal(r) {
t.Errorf("%v should equal %v", ip.String(), r.String())
}
}
func TestIPAddCarryover2(t *testing.T) {
ip := net.ParseIP("10.1.255.255")
r := net.ParseIP("10.2.0.4")
if !IPAdd(ip, 5).Equal(r) {
t.Errorf("%v should equal %v", ip.String(), r.String())
}
}
func TestIPSub(t *testing.T) {
ip := net.ParseIP("10.1.5.5")
r := net.ParseIP("10.1.5.4")
if !IPAdd(ip, -1).Equal(r) {
t.Errorf("%v should equal %v", ip.String(), r.String())
}
}
func TestIPSubCarryover(t *testing.T) {
ip := net.ParseIP("10.1.5.0")
r := net.ParseIP("10.1.4.251")
rip := IPAdd(ip, -5)
if !rip.Equal(r) {
t.Errorf("%v should equal %v", rip.String(), r.String())
}
}
func TestIPSubCarryover2(t *testing.T) {
ip := net.ParseIP("10.1.0.0")
r := net.ParseIP("10.0.255.251")
rip := IPAdd(ip, -5)
if !rip.Equal(r) {
t.Errorf("%v should equal %v", rip.String(), r.String())
}
}
func TestIPBefore(t *testing.T) {
ip := net.ParseIP("10.1.0.1")
ip2 := net.ParseIP("10.1.0.2")
ret := IPBefore(ip, ip2)
if !ret {
t.Errorf("%v should be before %v", ip.String(), ip2.String())
}
}
func TestIPNotBefore(t *testing.T) {
ip := net.ParseIP("10.1.0.2")
ip2 := net.ParseIP("10.1.0.1")
ret := IPBefore(ip, ip2)
if ret {
t.Errorf("%v should not be before %v", ip.String(), ip2.String())
}
}
func TestIPBeforeEqual(t *testing.T) {
ip := net.ParseIP("10.1.0.1")
ip2 := net.ParseIP("10.1.0.1")
ret := IPBefore(ip, ip2)
if ret {
t.Errorf("%v should not be before %v", ip.String(), ip2.String())
}
}
func TestIPBeforeNilFirst(t *testing.T) {
ip2 := net.ParseIP("10.1.0.1")
ret := IPBefore(nil, ip2)
if !ret {
t.Errorf("nil should be before %v", ip2.String())
}
}
func TestIPBeforeNilSecond(t *testing.T) {
ip := net.ParseIP("10.1.0.1")
ret := IPBefore(ip, nil)
if ret {
t.Errorf("%v should not be before nil", ip.String())
}
}
func TestIPBeforeNilBoth(t *testing.T) {
ret := IPBefore(nil, nil)
if ret {
t.Errorf("nil should not be before nil")
}
}
func TestIPDiffNeg(t *testing.T) {
ip := net.ParseIP("10.1.0.1")
ip2 := net.ParseIP("10.1.0.2")
ret := IPDiff(ip, ip2)
if ret != -1 {
t.Errorf("%v minus %v should be -1", ip, ip2)
}
}
func TestIPDiffPos(t *testing.T) {
ip := net.ParseIP("10.1.0.2")
ip2 := net.ParseIP("10.1.0.1")
ret := IPDiff(ip, ip2)
if ret != 1 {
t.Errorf("%v minus %v should be 1", ip, ip2)
}
}
func TestIPDiffEq(t *testing.T) {
ip := net.ParseIP("10.1.0.1")
ip2 := net.ParseIP("10.1.0.1")
ret := IPDiff(ip, ip2)
if ret != 0 {
t.Errorf("%v minus %v should be 0", ip, ip2)
}
}
func TestRandomAddrWithExclude(t *testing.T) {
_, sn, _ := net.ParseCIDR("10.1.0.0/24")
ip := RandAddrWithExclude(sn, 0, 0)
if !sn.Contains(ip) {
t.Errorf("%v should be an IP in %v", ip.String(), sn.String())
}
}
func TestRandomAddrWithBadExcludeFirst(t *testing.T) {
_, sn, _ := net.ParseCIDR("10.1.0.0/24")
ip := RandAddrWithExclude(sn, 300, 0)
if ip != nil {
t.Errorf("exclusions that land outside the subnet's range should return a nil IP")
}
}
func TestRandomAddrWithBadExcludeSecond(t *testing.T) {
_, sn, _ := net.ParseCIDR("10.1.0.0/24")
ip := RandAddrWithExclude(sn, 0, 300)
if ip != nil {
t.Errorf("exclusions that land outside the subnet's range should return a nil IP")
}
}
func TestRandomAddrWithBadExcludeBoth(t *testing.T) {
_, sn, _ := net.ParseCIDR("10.1.0.0/24")
ip := RandAddrWithExclude(sn, 150, 150)
if ip != nil {
t.Errorf("exclusions that land outside the subnet's range should return a nil IP")
}
}