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comparators_test.go
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comparators_test.go
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package ipx_test
import (
"fmt"
"net"
"testing"
"github.com/ns1/ipx"
)
func ExampleCmpIP_IP4() {
a := net.ParseIP("192.168.0.10")
b := net.ParseIP("192.168.0.20")
fmt.Println(ipx.CmpIP(a, b))
// Output:
// -1
}
func ExampleCmpIP_IP6() {
a := net.ParseIP("2001:db8::1")
b := net.ParseIP("2001:db8::cafe")
fmt.Println(ipx.CmpIP(a, b))
// Output:
// -1
}
func ExampleCmpNet_IP4() {
a := cidr("192.168.0.10/24")
b := cidr("192.168.0.10/16")
fmt.Println(ipx.CmpNet(a, b))
// Output:
// 0
}
func ExampleCmpNet_IP6() {
a := cidr("2001:db8::1/128")
b := cidr("2001:db8::1/64")
fmt.Println(ipx.CmpNet(a, b))
// Output:
// 1
}
func TestCmpIPPanic(t *testing.T) {
defer func() { recover() }()
a := net.ParseIP("192.168.0.10")
b := net.ParseIP("2001:db8::1")
ipx.CmpIP(a, b)
t.Errorf("did not panic")
}
func TestCmpNetPanic(t *testing.T) {
defer func() { recover() }()
a := cidr("192.168.0.10/24")
ipx.CmpNet(a, nil)
t.Errorf("did not panic")
}
func TestCmpIP(t *testing.T) {
for _, c := range []struct {
name string
a string
b string
expected int
}{
{
"ipv4 /24 less than",
"192.168.0.10",
"192.168.0.20",
-1,
},
{
"ipv4 /24 greater than",
"192.168.0.20",
"192.168.0.10",
1,
},
{
"ipv4 /24 equal",
"192.168.0.10",
"192.168.0.10",
0,
},
{
"ipv4 /16 less than",
"192.168.10.20",
"192.168.20.10",
-1,
},
{
"ipv4 /16 greater than",
"192.168.20.10",
"192.168.10.20",
1,
},
{
"ipv6 /16 less than",
"2001:0db8:85a3:0000:0000:8a2e:0370:6000",
"2001:0db8:85a3:0000:0000:8a2e:0370:7000",
-1,
},
{
"ipv6 /16 greater than",
"2001:0db8:85a3:0000:0000:8a2e:0370:7000",
"2001:0db8:85a3:0000:0000:8a2e:0370:6000",
1,
},
{
"ipv6 /16 equal",
"2001:0db8:85a3:0000:0000:8a2e:0370:6000",
"2001:0db8:85a3:0000:0000:8a2e:0370:6000",
0,
},
{
"ipv6 /32 less than",
"2001:0db8:85a3:0000:0000:8a2e:6000:7000",
"2001:0db8:85a3:0000:0000:8a2e:7000:6000",
-1,
},
{
"ipv6 /32 greater than",
"2001:0db8:85a3:0000:0000:8a2e:7000:6000",
"2001:0db8:85a3:0000:0000:8a2e:6000:7000",
1,
},
{
"ipv6 /128 less than",
"2001:eeee:eeee:eeee:eeee:eeee:eeee:eeee",
"3001:eeee:eeee:eeee:eeee:eeee:eeee:eeee",
-1,
},
{
"ipv6 /128 greater than",
"3001:eeee:eeee:eeee:eeee:eeee:eeee:eeee",
"2001:eeee:eeee:eeee:eeee:eeee:eeee:eeee",
1,
},
} {
t.Run(c.name, func(t *testing.T) {
if result := ipx.CmpIP(net.ParseIP(c.a), net.ParseIP(c.b)); result != c.expected {
t.Errorf("expected %v but got %v", c.expected, result)
}
})
}
}
func TestCmpNet(t *testing.T) {
for _, c := range []struct {
name string
a string
b string
expected int
}{
{
"ipv4 different masks greater than",
"192.168.0.20/32",
"192.168.0.20/24",
1,
},
{
"ipv4 different masks less than",
"192.168.0.20/32",
"192.168.10.20/24",
-1,
},
{
"ipv4 different masks equal",
"192.168.0.0/32",
"192.168.0.0/24",
0,
},
{
"ipv4 /24 less than",
"192.168.0.10/24",
"192.168.10.20/24",
-1,
},
{
"ipv4 /24 greater than",
"192.168.10.20/24",
"192.168.0.10/24",
1,
},
{
"ipv4 /24 equal",
"192.168.0.10/24",
"192.168.0.20/24",
0,
},
{
"ipv6 /112 less than",
"2001:0db8:85a3:0000:0000:8a2e:0370:6000/112",
"2001:0db8:85a3:0000:0000:8a2e:4000:7000/112",
-1,
},
{
"ipv6 /112 greater than",
"2001:0db8:85a3:0000:0000:8a2e:4000:7000/112",
"2001:0db8:85a3:0000:0000:8a2e:0370:6000/112",
1,
},
{
"ipv6 /112 equal",
"2001:0db8:85a3:0000:0000:8a2e:0370:6000/112",
"2001:0db8:85a3:0000:0000:8a2e:0370:6000/112",
0,
},
{
"ipv6 different masks less than",
"2001:0db8:85a3:0000:0000:8a2e:0370:6000/128",
"2001:0db8:85a3:0000:0000:8a2e:4000:6000/112",
-1,
},
{
"ipv6 different masks greater than",
"2001:0db8:85a3:0000:0000:8a2e:0370:6000/128",
"2001:0db8:85a3:0000:0000:8a2e:0370:6000/112",
1,
},
{
"ipv6 different masks equal",
"2001:0db8:85a3:0000:0000:8a2e:0370:0000/128",
"2001:0db8:85a3:0000:0000:8a2e:0370:6000/112",
0,
},
} {
t.Run(c.name, func(t *testing.T) {
if result := ipx.CmpNet(cidr(c.a), cidr(c.b)); result != c.expected {
t.Errorf("expected %v but got %v", c.expected, result)
}
})
}
}