tailscale/util/netconv/netconv_test.go

77 lines
2.2 KiB
Go

// Copyright (c) 2022 Tailscale Inc & AUTHORS All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package netconv
import (
"net/netip"
"testing"
qt "github.com/frankban/quicktest"
"inet.af/netaddr"
)
func TestAddr(t *testing.T) {
c := qt.New(t)
c.Assert(netip.Addr{}, qt.Equals, AsAddr(netaddr.IP{}))
c.Assert(netaddr.IP{}, qt.Equals, AsIP(netip.Addr{}))
// Cover IPv4, IPv6, 4in6, and zones.
addrStrs := []string{
"0.0.0.0",
"123.45.67.89",
"::",
"fd7a:115c:a1e0:ab12:4843:cd96:626b:430b",
"fd7a:115c:a1e0:ab12:4843:cd96:626b:430b%eth0",
"::ffff:192.0.2.128",
"::ffff:192.0.2.128%eth0",
}
for _, s := range addrStrs {
ip := netaddr.MustParseIP(s)
addr := netip.MustParseAddr(s)
c.Assert(addr, qt.Equals, AsAddr(ip))
c.Assert(ip, qt.Equals, AsIP(addr))
}
}
func TestAddrPort(t *testing.T) {
c := qt.New(t)
c.Assert(netip.AddrPort{}, qt.Equals, AsAddrPort(netaddr.IPPort{}))
c.Assert(netaddr.IPPort{}, qt.Equals, AsIPPort(netip.AddrPort{}))
// Test just a single AddrPort conversion;
// there's almost nothing happening in the code.
portStr := "1.2.4.5:8"
ipPort := netaddr.MustParseIPPort(portStr)
ap := netip.MustParseAddrPort(portStr)
c.Assert(ipPort, qt.Equals, AsIPPort(ap))
c.Assert(ap, qt.Equals, AsAddrPort(ipPort))
}
func TestPrefix(t *testing.T) {
c := qt.New(t)
// The interesting Prefix cases are invalid bits.
addr := netip.MustParseAddr("1.2.3.4")
ip := AsIP(addr)
tests := []struct {
ipp netaddr.IPPrefix // input IPPrefix, output from converting pfx
pfx netip.Prefix // input Prefix, output from converting ipp
out netaddr.IPPrefix // output from converting pfx
}{
{netaddr.IPPrefix{}, netip.Prefix{}, netaddr.IPPrefix{}},
{netaddr.IPPrefixFrom(ip, 24), netip.PrefixFrom(addr, 24), netaddr.IPPrefixFrom(ip, 24)},
{netaddr.IPPrefixFrom(ip, 255), netip.PrefixFrom(addr, -1), netaddr.IPPrefixFrom(ip, 255)},
{netaddr.IPPrefixFrom(ip, 204), netip.PrefixFrom(addr, -1), netaddr.IPPrefixFrom(ip, 255)},
}
for _, test := range tests {
c.Assert(test.out, qt.Equals, AsIPPrefix(test.pfx))
c.Assert(test.pfx, qt.Equals, AsPrefix(test.ipp))
}
}