chore(all): replace net.IP with netip.Addr

internal/routing/ip_test.go

@@ -1,7 +1,7 @@
 package routing
 
 import (
-	"net"
+	"net/netip"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -87,8 +87,8 @@ func Test_IPIsPrivate(t *testing.T) {
 		t.Run(name, func(t *testing.T) {
 			t.Parallel()
 
-			ip := net.ParseIP(testCase.ipString)
-			require.NotNil(t, ip)
+			ip, err := netip.ParseAddr(testCase.ipString)
+			require.NoError(t, err)
 
 			isPrivate := IPIsPrivate(ip)
 
@@ -96,35 +96,3 @@ func Test_IPIsPrivate(t *testing.T) {
 		})
 	}
 }
-
-func Test_ensureNoIPv6WrappedIPv4(t *testing.T) {
-	t.Parallel()
-
-	testCases := map[string]struct {
-		candidateIP net.IP
-		resultIP    net.IP
-	}{
-		"nil": {},
-		"ipv6": {
-			candidateIP: net.IPv6loopback,
-			resultIP:    net.IPv6loopback,
-		},
-		"ipv4": {
-			candidateIP: net.IP{1, 2, 3, 4},
-			resultIP:    net.IP{1, 2, 3, 4},
-		},
-		"ipv6_wrapped_ipv4": {
-			candidateIP: net.IPv4(1, 2, 3, 4),
-			resultIP:    net.IP{1, 2, 3, 4},
-		},
-	}
-	for name, testCase := range testCases {
-		testCase := testCase
-		t.Run(name, func(t *testing.T) {
-			t.Parallel()
-
-			resultIP := ensureNoIPv6WrappedIPv4(testCase.candidateIP)
-			assert.Equal(t, testCase.resultIP, resultIP)
-		})
-	}
-}