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-rw-r--r--src/net/ip_test.go768
1 files changed, 768 insertions, 0 deletions
diff --git a/src/net/ip_test.go b/src/net/ip_test.go
new file mode 100644
index 0000000..8f1590c
--- /dev/null
+++ b/src/net/ip_test.go
@@ -0,0 +1,768 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build !js
+
+package net
+
+import (
+ "bytes"
+ "math/rand"
+ "reflect"
+ "runtime"
+ "testing"
+)
+
+var parseIPTests = []struct {
+ in string
+ out IP
+}{
+ {"127.0.1.2", IPv4(127, 0, 1, 2)},
+ {"127.0.0.1", IPv4(127, 0, 0, 1)},
+ {"::ffff:127.1.2.3", IPv4(127, 1, 2, 3)},
+ {"::ffff:7f01:0203", IPv4(127, 1, 2, 3)},
+ {"0:0:0:0:0000:ffff:127.1.2.3", IPv4(127, 1, 2, 3)},
+ {"0:0:0:0:000000:ffff:127.1.2.3", IPv4(127, 1, 2, 3)},
+ {"0:0:0:0::ffff:127.1.2.3", IPv4(127, 1, 2, 3)},
+
+ {"2001:4860:0:2001::68", IP{0x20, 0x01, 0x48, 0x60, 0, 0, 0x20, 0x01, 0, 0, 0, 0, 0, 0, 0x00, 0x68}},
+ {"2001:4860:0000:2001:0000:0000:0000:0068", IP{0x20, 0x01, 0x48, 0x60, 0, 0, 0x20, 0x01, 0, 0, 0, 0, 0, 0, 0x00, 0x68}},
+
+ {"-0.0.0.0", nil},
+ {"0.-1.0.0", nil},
+ {"0.0.-2.0", nil},
+ {"0.0.0.-3", nil},
+ {"127.0.0.256", nil},
+ {"abc", nil},
+ {"123:", nil},
+ {"fe80::1%lo0", nil},
+ {"fe80::1%911", nil},
+ {"", nil},
+ {"a1:a2:a3:a4::b1:b2:b3:b4", nil}, // Issue 6628
+ {"127.001.002.003", nil},
+ {"::ffff:127.001.002.003", nil},
+ {"123.000.000.000", nil},
+ {"1.2..4", nil},
+ {"0123.0.0.1", nil},
+}
+
+func TestParseIP(t *testing.T) {
+ for _, tt := range parseIPTests {
+ if out := ParseIP(tt.in); !reflect.DeepEqual(out, tt.out) {
+ t.Errorf("ParseIP(%q) = %v, want %v", tt.in, out, tt.out)
+ }
+ if tt.in == "" {
+ // Tested in TestMarshalEmptyIP below.
+ continue
+ }
+ var out IP
+ if err := out.UnmarshalText([]byte(tt.in)); !reflect.DeepEqual(out, tt.out) || (tt.out == nil) != (err != nil) {
+ t.Errorf("IP.UnmarshalText(%q) = %v, %v, want %v", tt.in, out, err, tt.out)
+ }
+ }
+}
+
+func TestLookupWithIP(t *testing.T) {
+ _, err := LookupIP("")
+ if err == nil {
+ t.Errorf(`LookupIP("") succeeded, should fail`)
+ }
+ _, err = LookupHost("")
+ if err == nil {
+ t.Errorf(`LookupIP("") succeeded, should fail`)
+ }
+
+ // Test that LookupHost and LookupIP, which normally
+ // expect host names, work with IP addresses.
+ for _, tt := range parseIPTests {
+ if tt.out != nil {
+ addrs, err := LookupHost(tt.in)
+ if len(addrs) != 1 || addrs[0] != tt.in || err != nil {
+ t.Errorf("LookupHost(%q) = %v, %v, want %v, nil", tt.in, addrs, err, []string{tt.in})
+ }
+ } else if !testing.Short() {
+ // We can't control what the host resolver does; if it can resolve, say,
+ // 127.0.0.256 or fe80::1%911 or a host named 'abc', who are we to judge?
+ // Warn about these discrepancies but don't fail the test.
+ addrs, err := LookupHost(tt.in)
+ if err == nil {
+ t.Logf("warning: LookupHost(%q) = %v, want error", tt.in, addrs)
+ }
+ }
+
+ if tt.out != nil {
+ ips, err := LookupIP(tt.in)
+ if len(ips) != 1 || !reflect.DeepEqual(ips[0], tt.out) || err != nil {
+ t.Errorf("LookupIP(%q) = %v, %v, want %v, nil", tt.in, ips, err, []IP{tt.out})
+ }
+ } else if !testing.Short() {
+ ips, err := LookupIP(tt.in)
+ // We can't control what the host resolver does. See above.
+ if err == nil {
+ t.Logf("warning: LookupIP(%q) = %v, want error", tt.in, ips)
+ }
+ }
+ }
+}
+
+func BenchmarkParseIP(b *testing.B) {
+ testHookUninstaller.Do(uninstallTestHooks)
+
+ for i := 0; i < b.N; i++ {
+ for _, tt := range parseIPTests {
+ ParseIP(tt.in)
+ }
+ }
+}
+
+// Issue 6339
+func TestMarshalEmptyIP(t *testing.T) {
+ for _, in := range [][]byte{nil, []byte("")} {
+ var out = IP{1, 2, 3, 4}
+ if err := out.UnmarshalText(in); err != nil || out != nil {
+ t.Errorf("UnmarshalText(%v) = %v, %v; want nil, nil", in, out, err)
+ }
+ }
+ var ip IP
+ got, err := ip.MarshalText()
+ if err != nil {
+ t.Fatal(err)
+ }
+ if !reflect.DeepEqual(got, []byte("")) {
+ t.Errorf(`got %#v, want []byte("")`, got)
+ }
+}
+
+var ipStringTests = []*struct {
+ in IP // see RFC 791 and RFC 4291
+ str string // see RFC 791, RFC 4291 and RFC 5952
+ byt []byte
+ error
+}{
+ // IPv4 address
+ {
+ IP{192, 0, 2, 1},
+ "192.0.2.1",
+ []byte("192.0.2.1"),
+ nil,
+ },
+ {
+ IP{0, 0, 0, 0},
+ "0.0.0.0",
+ []byte("0.0.0.0"),
+ nil,
+ },
+
+ // IPv4-mapped IPv6 address
+ {
+ IP{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff, 192, 0, 2, 1},
+ "192.0.2.1",
+ []byte("192.0.2.1"),
+ nil,
+ },
+ {
+ IP{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff, 0, 0, 0, 0},
+ "0.0.0.0",
+ []byte("0.0.0.0"),
+ nil,
+ },
+
+ // IPv6 address
+ {
+ IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0x1, 0x23, 0, 0x12, 0, 0x1},
+ "2001:db8::123:12:1",
+ []byte("2001:db8::123:12:1"),
+ nil,
+ },
+ {
+ IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x1},
+ "2001:db8::1",
+ []byte("2001:db8::1"),
+ nil,
+ },
+ {
+ IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0x1, 0, 0, 0, 0x1, 0, 0, 0, 0x1},
+ "2001:db8:0:1:0:1:0:1",
+ []byte("2001:db8:0:1:0:1:0:1"),
+ nil,
+ },
+ {
+ IP{0x20, 0x1, 0xd, 0xb8, 0, 0x1, 0, 0, 0, 0x1, 0, 0, 0, 0x1, 0, 0},
+ "2001:db8:1:0:1:0:1:0",
+ []byte("2001:db8:1:0:1:0:1:0"),
+ nil,
+ },
+ {
+ IP{0x20, 0x1, 0, 0, 0, 0, 0, 0, 0, 0x1, 0, 0, 0, 0, 0, 0x1},
+ "2001::1:0:0:1",
+ []byte("2001::1:0:0:1"),
+ nil,
+ },
+ {
+ IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0x1, 0, 0, 0, 0, 0, 0},
+ "2001:db8:0:0:1::",
+ []byte("2001:db8:0:0:1::"),
+ nil,
+ },
+ {
+ IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0x1, 0, 0, 0, 0, 0, 0x1},
+ "2001:db8::1:0:0:1",
+ []byte("2001:db8::1:0:0:1"),
+ nil,
+ },
+ {
+ IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0xa, 0, 0xb, 0, 0xc, 0, 0xd},
+ "2001:db8::a:b:c:d",
+ []byte("2001:db8::a:b:c:d"),
+ nil,
+ },
+ {
+ IPv6unspecified,
+ "::",
+ []byte("::"),
+ nil,
+ },
+
+ // IP wildcard equivalent address in Dial/Listen API
+ {
+ nil,
+ "<nil>",
+ nil,
+ nil,
+ },
+
+ // Opaque byte sequence
+ {
+ IP{0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef},
+ "?0123456789abcdef",
+ nil,
+ &AddrError{Err: "invalid IP address", Addr: "0123456789abcdef"},
+ },
+}
+
+func TestIPString(t *testing.T) {
+ for _, tt := range ipStringTests {
+ if out := tt.in.String(); out != tt.str {
+ t.Errorf("IP.String(%v) = %q, want %q", tt.in, out, tt.str)
+ }
+ if out, err := tt.in.MarshalText(); !bytes.Equal(out, tt.byt) || !reflect.DeepEqual(err, tt.error) {
+ t.Errorf("IP.MarshalText(%v) = %v, %v, want %v, %v", tt.in, out, err, tt.byt, tt.error)
+ }
+ }
+}
+
+var sink string
+
+func BenchmarkIPString(b *testing.B) {
+ testHookUninstaller.Do(uninstallTestHooks)
+
+ b.Run("IPv4", func(b *testing.B) {
+ benchmarkIPString(b, IPv4len)
+ })
+
+ b.Run("IPv6", func(b *testing.B) {
+ benchmarkIPString(b, IPv6len)
+ })
+}
+
+func benchmarkIPString(b *testing.B, size int) {
+ b.ReportAllocs()
+ b.ResetTimer()
+ for i := 0; i < b.N; i++ {
+ for _, tt := range ipStringTests {
+ if tt.in != nil && len(tt.in) == size {
+ sink = tt.in.String()
+ }
+ }
+ }
+}
+
+var ipMaskTests = []struct {
+ in IP
+ mask IPMask
+ out IP
+}{
+ {IPv4(192, 168, 1, 127), IPv4Mask(255, 255, 255, 128), IPv4(192, 168, 1, 0)},
+ {IPv4(192, 168, 1, 127), IPMask(ParseIP("255.255.255.192")), IPv4(192, 168, 1, 64)},
+ {IPv4(192, 168, 1, 127), IPMask(ParseIP("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffe0")), IPv4(192, 168, 1, 96)},
+ {IPv4(192, 168, 1, 127), IPv4Mask(255, 0, 255, 0), IPv4(192, 0, 1, 0)},
+ {ParseIP("2001:db8::1"), IPMask(ParseIP("ffff:ff80::")), ParseIP("2001:d80::")},
+ {ParseIP("2001:db8::1"), IPMask(ParseIP("f0f0:0f0f::")), ParseIP("2000:d08::")},
+}
+
+func TestIPMask(t *testing.T) {
+ for _, tt := range ipMaskTests {
+ if out := tt.in.Mask(tt.mask); out == nil || !tt.out.Equal(out) {
+ t.Errorf("IP(%v).Mask(%v) = %v, want %v", tt.in, tt.mask, out, tt.out)
+ }
+ }
+}
+
+var ipMaskStringTests = []struct {
+ in IPMask
+ out string
+}{
+ {IPv4Mask(255, 255, 255, 240), "fffffff0"},
+ {IPv4Mask(255, 0, 128, 0), "ff008000"},
+ {IPMask(ParseIP("ffff:ff80::")), "ffffff80000000000000000000000000"},
+ {IPMask(ParseIP("ef00:ff80::cafe:0")), "ef00ff800000000000000000cafe0000"},
+ {nil, "<nil>"},
+}
+
+func TestIPMaskString(t *testing.T) {
+ for _, tt := range ipMaskStringTests {
+ if out := tt.in.String(); out != tt.out {
+ t.Errorf("IPMask.String(%v) = %q, want %q", tt.in, out, tt.out)
+ }
+ }
+}
+
+func BenchmarkIPMaskString(b *testing.B) {
+ testHookUninstaller.Do(uninstallTestHooks)
+
+ for i := 0; i < b.N; i++ {
+ for _, tt := range ipMaskStringTests {
+ sink = tt.in.String()
+ }
+ }
+}
+
+var parseCIDRTests = []struct {
+ in string
+ ip IP
+ net *IPNet
+ err error
+}{
+ {"135.104.0.0/32", IPv4(135, 104, 0, 0), &IPNet{IP: IPv4(135, 104, 0, 0), Mask: IPv4Mask(255, 255, 255, 255)}, nil},
+ {"0.0.0.0/24", IPv4(0, 0, 0, 0), &IPNet{IP: IPv4(0, 0, 0, 0), Mask: IPv4Mask(255, 255, 255, 0)}, nil},
+ {"135.104.0.0/24", IPv4(135, 104, 0, 0), &IPNet{IP: IPv4(135, 104, 0, 0), Mask: IPv4Mask(255, 255, 255, 0)}, nil},
+ {"135.104.0.1/32", IPv4(135, 104, 0, 1), &IPNet{IP: IPv4(135, 104, 0, 1), Mask: IPv4Mask(255, 255, 255, 255)}, nil},
+ {"135.104.0.1/24", IPv4(135, 104, 0, 1), &IPNet{IP: IPv4(135, 104, 0, 0), Mask: IPv4Mask(255, 255, 255, 0)}, nil},
+ {"::1/128", ParseIP("::1"), &IPNet{IP: ParseIP("::1"), Mask: IPMask(ParseIP("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"))}, nil},
+ {"abcd:2345::/127", ParseIP("abcd:2345::"), &IPNet{IP: ParseIP("abcd:2345::"), Mask: IPMask(ParseIP("ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe"))}, nil},
+ {"abcd:2345::/65", ParseIP("abcd:2345::"), &IPNet{IP: ParseIP("abcd:2345::"), Mask: IPMask(ParseIP("ffff:ffff:ffff:ffff:8000::"))}, nil},
+ {"abcd:2345::/64", ParseIP("abcd:2345::"), &IPNet{IP: ParseIP("abcd:2345::"), Mask: IPMask(ParseIP("ffff:ffff:ffff:ffff::"))}, nil},
+ {"abcd:2345::/63", ParseIP("abcd:2345::"), &IPNet{IP: ParseIP("abcd:2345::"), Mask: IPMask(ParseIP("ffff:ffff:ffff:fffe::"))}, nil},
+ {"abcd:2345::/33", ParseIP("abcd:2345::"), &IPNet{IP: ParseIP("abcd:2345::"), Mask: IPMask(ParseIP("ffff:ffff:8000::"))}, nil},
+ {"abcd:2345::/32", ParseIP("abcd:2345::"), &IPNet{IP: ParseIP("abcd:2345::"), Mask: IPMask(ParseIP("ffff:ffff::"))}, nil},
+ {"abcd:2344::/31", ParseIP("abcd:2344::"), &IPNet{IP: ParseIP("abcd:2344::"), Mask: IPMask(ParseIP("ffff:fffe::"))}, nil},
+ {"abcd:2300::/24", ParseIP("abcd:2300::"), &IPNet{IP: ParseIP("abcd:2300::"), Mask: IPMask(ParseIP("ffff:ff00::"))}, nil},
+ {"abcd:2345::/24", ParseIP("abcd:2345::"), &IPNet{IP: ParseIP("abcd:2300::"), Mask: IPMask(ParseIP("ffff:ff00::"))}, nil},
+ {"2001:DB8::/48", ParseIP("2001:DB8::"), &IPNet{IP: ParseIP("2001:DB8::"), Mask: IPMask(ParseIP("ffff:ffff:ffff::"))}, nil},
+ {"2001:DB8::1/48", ParseIP("2001:DB8::1"), &IPNet{IP: ParseIP("2001:DB8::"), Mask: IPMask(ParseIP("ffff:ffff:ffff::"))}, nil},
+ {"192.168.1.1/255.255.255.0", nil, nil, &ParseError{Type: "CIDR address", Text: "192.168.1.1/255.255.255.0"}},
+ {"192.168.1.1/35", nil, nil, &ParseError{Type: "CIDR address", Text: "192.168.1.1/35"}},
+ {"2001:db8::1/-1", nil, nil, &ParseError{Type: "CIDR address", Text: "2001:db8::1/-1"}},
+ {"2001:db8::1/-0", nil, nil, &ParseError{Type: "CIDR address", Text: "2001:db8::1/-0"}},
+ {"-0.0.0.0/32", nil, nil, &ParseError{Type: "CIDR address", Text: "-0.0.0.0/32"}},
+ {"0.-1.0.0/32", nil, nil, &ParseError{Type: "CIDR address", Text: "0.-1.0.0/32"}},
+ {"0.0.-2.0/32", nil, nil, &ParseError{Type: "CIDR address", Text: "0.0.-2.0/32"}},
+ {"0.0.0.-3/32", nil, nil, &ParseError{Type: "CIDR address", Text: "0.0.0.-3/32"}},
+ {"0.0.0.0/-0", nil, nil, &ParseError{Type: "CIDR address", Text: "0.0.0.0/-0"}},
+ {"127.000.000.001/32", nil, nil, &ParseError{Type: "CIDR address", Text: "127.000.000.001/32"}},
+ {"", nil, nil, &ParseError{Type: "CIDR address", Text: ""}},
+}
+
+func TestParseCIDR(t *testing.T) {
+ for _, tt := range parseCIDRTests {
+ ip, net, err := ParseCIDR(tt.in)
+ if !reflect.DeepEqual(err, tt.err) {
+ t.Errorf("ParseCIDR(%q) = %v, %v; want %v, %v", tt.in, ip, net, tt.ip, tt.net)
+ }
+ if err == nil && (!tt.ip.Equal(ip) || !tt.net.IP.Equal(net.IP) || !reflect.DeepEqual(net.Mask, tt.net.Mask)) {
+ t.Errorf("ParseCIDR(%q) = %v, {%v, %v}; want %v, {%v, %v}", tt.in, ip, net.IP, net.Mask, tt.ip, tt.net.IP, tt.net.Mask)
+ }
+ }
+}
+
+var ipNetContainsTests = []struct {
+ ip IP
+ net *IPNet
+ ok bool
+}{
+ {IPv4(172, 16, 1, 1), &IPNet{IP: IPv4(172, 16, 0, 0), Mask: CIDRMask(12, 32)}, true},
+ {IPv4(172, 24, 0, 1), &IPNet{IP: IPv4(172, 16, 0, 0), Mask: CIDRMask(13, 32)}, false},
+ {IPv4(192, 168, 0, 3), &IPNet{IP: IPv4(192, 168, 0, 0), Mask: IPv4Mask(0, 0, 255, 252)}, true},
+ {IPv4(192, 168, 0, 4), &IPNet{IP: IPv4(192, 168, 0, 0), Mask: IPv4Mask(0, 255, 0, 252)}, false},
+ {ParseIP("2001:db8:1:2::1"), &IPNet{IP: ParseIP("2001:db8:1::"), Mask: CIDRMask(47, 128)}, true},
+ {ParseIP("2001:db8:1:2::1"), &IPNet{IP: ParseIP("2001:db8:2::"), Mask: CIDRMask(47, 128)}, false},
+ {ParseIP("2001:db8:1:2::1"), &IPNet{IP: ParseIP("2001:db8:1::"), Mask: IPMask(ParseIP("ffff:0:ffff::"))}, true},
+ {ParseIP("2001:db8:1:2::1"), &IPNet{IP: ParseIP("2001:db8:1::"), Mask: IPMask(ParseIP("0:0:0:ffff::"))}, false},
+}
+
+func TestIPNetContains(t *testing.T) {
+ for _, tt := range ipNetContainsTests {
+ if ok := tt.net.Contains(tt.ip); ok != tt.ok {
+ t.Errorf("IPNet(%v).Contains(%v) = %v, want %v", tt.net, tt.ip, ok, tt.ok)
+ }
+ }
+}
+
+var ipNetStringTests = []struct {
+ in *IPNet
+ out string
+}{
+ {&IPNet{IP: IPv4(192, 168, 1, 0), Mask: CIDRMask(26, 32)}, "192.168.1.0/26"},
+ {&IPNet{IP: IPv4(192, 168, 1, 0), Mask: IPv4Mask(255, 0, 255, 0)}, "192.168.1.0/ff00ff00"},
+ {&IPNet{IP: ParseIP("2001:db8::"), Mask: CIDRMask(55, 128)}, "2001:db8::/55"},
+ {&IPNet{IP: ParseIP("2001:db8::"), Mask: IPMask(ParseIP("8000:f123:0:cafe::"))}, "2001:db8::/8000f1230000cafe0000000000000000"},
+ {nil, "<nil>"},
+}
+
+func TestIPNetString(t *testing.T) {
+ for _, tt := range ipNetStringTests {
+ if out := tt.in.String(); out != tt.out {
+ t.Errorf("IPNet.String(%v) = %q, want %q", tt.in, out, tt.out)
+ }
+ }
+}
+
+var cidrMaskTests = []struct {
+ ones int
+ bits int
+ out IPMask
+}{
+ {0, 32, IPv4Mask(0, 0, 0, 0)},
+ {12, 32, IPv4Mask(255, 240, 0, 0)},
+ {24, 32, IPv4Mask(255, 255, 255, 0)},
+ {32, 32, IPv4Mask(255, 255, 255, 255)},
+ {0, 128, IPMask{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
+ {4, 128, IPMask{0xf0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
+ {48, 128, IPMask{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
+ {128, 128, IPMask{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}},
+ {33, 32, nil},
+ {32, 33, nil},
+ {-1, 128, nil},
+ {128, -1, nil},
+}
+
+func TestCIDRMask(t *testing.T) {
+ for _, tt := range cidrMaskTests {
+ if out := CIDRMask(tt.ones, tt.bits); !reflect.DeepEqual(out, tt.out) {
+ t.Errorf("CIDRMask(%v, %v) = %v, want %v", tt.ones, tt.bits, out, tt.out)
+ }
+ }
+}
+
+var (
+ v4addr = IP{192, 168, 0, 1}
+ v4mappedv6addr = IP{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff, 192, 168, 0, 1}
+ v6addr = IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0x1, 0x23, 0, 0x12, 0, 0x1}
+ v4mask = IPMask{255, 255, 255, 0}
+ v4mappedv6mask = IPMask{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 255, 255, 255, 0}
+ v6mask = IPMask{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0}
+ badaddr = IP{192, 168, 0}
+ badmask = IPMask{255, 255, 0}
+ v4maskzero = IPMask{0, 0, 0, 0}
+)
+
+var networkNumberAndMaskTests = []struct {
+ in IPNet
+ out IPNet
+}{
+ {IPNet{IP: v4addr, Mask: v4mask}, IPNet{IP: v4addr, Mask: v4mask}},
+ {IPNet{IP: v4addr, Mask: v4mappedv6mask}, IPNet{IP: v4addr, Mask: v4mask}},
+ {IPNet{IP: v4mappedv6addr, Mask: v4mappedv6mask}, IPNet{IP: v4addr, Mask: v4mask}},
+ {IPNet{IP: v4mappedv6addr, Mask: v6mask}, IPNet{IP: v4addr, Mask: v4maskzero}},
+ {IPNet{IP: v4addr, Mask: v6mask}, IPNet{IP: v4addr, Mask: v4maskzero}},
+ {IPNet{IP: v6addr, Mask: v6mask}, IPNet{IP: v6addr, Mask: v6mask}},
+ {IPNet{IP: v6addr, Mask: v4mappedv6mask}, IPNet{IP: v6addr, Mask: v4mappedv6mask}},
+ {in: IPNet{IP: v6addr, Mask: v4mask}},
+ {in: IPNet{IP: v4addr, Mask: badmask}},
+ {in: IPNet{IP: v4mappedv6addr, Mask: badmask}},
+ {in: IPNet{IP: v6addr, Mask: badmask}},
+ {in: IPNet{IP: badaddr, Mask: v4mask}},
+ {in: IPNet{IP: badaddr, Mask: v4mappedv6mask}},
+ {in: IPNet{IP: badaddr, Mask: v6mask}},
+ {in: IPNet{IP: badaddr, Mask: badmask}},
+}
+
+func TestNetworkNumberAndMask(t *testing.T) {
+ for _, tt := range networkNumberAndMaskTests {
+ ip, m := networkNumberAndMask(&tt.in)
+ out := &IPNet{IP: ip, Mask: m}
+ if !reflect.DeepEqual(&tt.out, out) {
+ t.Errorf("networkNumberAndMask(%v) = %v, want %v", tt.in, out, &tt.out)
+ }
+ }
+}
+
+func TestSplitHostPort(t *testing.T) {
+ for _, tt := range []struct {
+ hostPort string
+ host string
+ port string
+ }{
+ // Host name
+ {"localhost:http", "localhost", "http"},
+ {"localhost:80", "localhost", "80"},
+
+ // Go-specific host name with zone identifier
+ {"localhost%lo0:http", "localhost%lo0", "http"},
+ {"localhost%lo0:80", "localhost%lo0", "80"},
+ {"[localhost%lo0]:http", "localhost%lo0", "http"}, // Go 1 behavior
+ {"[localhost%lo0]:80", "localhost%lo0", "80"}, // Go 1 behavior
+
+ // IP literal
+ {"127.0.0.1:http", "127.0.0.1", "http"},
+ {"127.0.0.1:80", "127.0.0.1", "80"},
+ {"[::1]:http", "::1", "http"},
+ {"[::1]:80", "::1", "80"},
+
+ // IP literal with zone identifier
+ {"[::1%lo0]:http", "::1%lo0", "http"},
+ {"[::1%lo0]:80", "::1%lo0", "80"},
+
+ // Go-specific wildcard for host name
+ {":http", "", "http"}, // Go 1 behavior
+ {":80", "", "80"}, // Go 1 behavior
+
+ // Go-specific wildcard for service name or transport port number
+ {"golang.org:", "golang.org", ""}, // Go 1 behavior
+ {"127.0.0.1:", "127.0.0.1", ""}, // Go 1 behavior
+ {"[::1]:", "::1", ""}, // Go 1 behavior
+
+ // Opaque service name
+ {"golang.org:https%foo", "golang.org", "https%foo"}, // Go 1 behavior
+ } {
+ if host, port, err := SplitHostPort(tt.hostPort); host != tt.host || port != tt.port || err != nil {
+ t.Errorf("SplitHostPort(%q) = %q, %q, %v; want %q, %q, nil", tt.hostPort, host, port, err, tt.host, tt.port)
+ }
+ }
+
+ for _, tt := range []struct {
+ hostPort string
+ err string
+ }{
+ {"golang.org", "missing port in address"},
+ {"127.0.0.1", "missing port in address"},
+ {"[::1]", "missing port in address"},
+ {"[fe80::1%lo0]", "missing port in address"},
+ {"[localhost%lo0]", "missing port in address"},
+ {"localhost%lo0", "missing port in address"},
+
+ {"::1", "too many colons in address"},
+ {"fe80::1%lo0", "too many colons in address"},
+ {"fe80::1%lo0:80", "too many colons in address"},
+
+ // Test cases that didn't fail in Go 1
+
+ {"[foo:bar]", "missing port in address"},
+ {"[foo:bar]baz", "missing port in address"},
+ {"[foo]bar:baz", "missing port in address"},
+
+ {"[foo]:[bar]:baz", "too many colons in address"},
+
+ {"[foo]:[bar]baz", "unexpected '[' in address"},
+ {"foo[bar]:baz", "unexpected '[' in address"},
+
+ {"foo]bar:baz", "unexpected ']' in address"},
+ } {
+ if host, port, err := SplitHostPort(tt.hostPort); err == nil {
+ t.Errorf("SplitHostPort(%q) should have failed", tt.hostPort)
+ } else {
+ e := err.(*AddrError)
+ if e.Err != tt.err {
+ t.Errorf("SplitHostPort(%q) = _, _, %q; want %q", tt.hostPort, e.Err, tt.err)
+ }
+ if host != "" || port != "" {
+ t.Errorf("SplitHostPort(%q) = %q, %q, err; want %q, %q, err on failure", tt.hostPort, host, port, "", "")
+ }
+ }
+ }
+}
+
+func TestJoinHostPort(t *testing.T) {
+ for _, tt := range []struct {
+ host string
+ port string
+ hostPort string
+ }{
+ // Host name
+ {"localhost", "http", "localhost:http"},
+ {"localhost", "80", "localhost:80"},
+
+ // Go-specific host name with zone identifier
+ {"localhost%lo0", "http", "localhost%lo0:http"},
+ {"localhost%lo0", "80", "localhost%lo0:80"},
+
+ // IP literal
+ {"127.0.0.1", "http", "127.0.0.1:http"},
+ {"127.0.0.1", "80", "127.0.0.1:80"},
+ {"::1", "http", "[::1]:http"},
+ {"::1", "80", "[::1]:80"},
+
+ // IP literal with zone identifier
+ {"::1%lo0", "http", "[::1%lo0]:http"},
+ {"::1%lo0", "80", "[::1%lo0]:80"},
+
+ // Go-specific wildcard for host name
+ {"", "http", ":http"}, // Go 1 behavior
+ {"", "80", ":80"}, // Go 1 behavior
+
+ // Go-specific wildcard for service name or transport port number
+ {"golang.org", "", "golang.org:"}, // Go 1 behavior
+ {"127.0.0.1", "", "127.0.0.1:"}, // Go 1 behavior
+ {"::1", "", "[::1]:"}, // Go 1 behavior
+
+ // Opaque service name
+ {"golang.org", "https%foo", "golang.org:https%foo"}, // Go 1 behavior
+ } {
+ if hostPort := JoinHostPort(tt.host, tt.port); hostPort != tt.hostPort {
+ t.Errorf("JoinHostPort(%q, %q) = %q; want %q", tt.host, tt.port, hostPort, tt.hostPort)
+ }
+ }
+}
+
+var ipAddrFamilyTests = []struct {
+ in IP
+ af4 bool
+ af6 bool
+}{
+ {IPv4bcast, true, false},
+ {IPv4allsys, true, false},
+ {IPv4allrouter, true, false},
+ {IPv4zero, true, false},
+ {IPv4(224, 0, 0, 1), true, false},
+ {IPv4(127, 0, 0, 1), true, false},
+ {IPv4(240, 0, 0, 1), true, false},
+ {IPv6unspecified, false, true},
+ {IPv6loopback, false, true},
+ {IPv6interfacelocalallnodes, false, true},
+ {IPv6linklocalallnodes, false, true},
+ {IPv6linklocalallrouters, false, true},
+ {ParseIP("ff05::a:b:c:d"), false, true},
+ {ParseIP("fe80::1:2:3:4"), false, true},
+ {ParseIP("2001:db8::123:12:1"), false, true},
+}
+
+func TestIPAddrFamily(t *testing.T) {
+ for _, tt := range ipAddrFamilyTests {
+ if af := tt.in.To4() != nil; af != tt.af4 {
+ t.Errorf("verifying IPv4 address family for %q = %v, want %v", tt.in, af, tt.af4)
+ }
+ if af := len(tt.in) == IPv6len && tt.in.To4() == nil; af != tt.af6 {
+ t.Errorf("verifying IPv6 address family for %q = %v, want %v", tt.in, af, tt.af6)
+ }
+ }
+}
+
+var ipAddrScopeTests = []struct {
+ scope func(IP) bool
+ in IP
+ ok bool
+}{
+ {IP.IsUnspecified, IPv4zero, true},
+ {IP.IsUnspecified, IPv4(127, 0, 0, 1), false},
+ {IP.IsUnspecified, IPv6unspecified, true},
+ {IP.IsUnspecified, IPv6interfacelocalallnodes, false},
+ {IP.IsUnspecified, nil, false},
+ {IP.IsLoopback, IPv4(127, 0, 0, 1), true},
+ {IP.IsLoopback, IPv4(127, 255, 255, 254), true},
+ {IP.IsLoopback, IPv4(128, 1, 2, 3), false},
+ {IP.IsLoopback, IPv6loopback, true},
+ {IP.IsLoopback, IPv6linklocalallrouters, false},
+ {IP.IsLoopback, nil, false},
+ {IP.IsMulticast, IPv4(224, 0, 0, 0), true},
+ {IP.IsMulticast, IPv4(239, 0, 0, 0), true},
+ {IP.IsMulticast, IPv4(240, 0, 0, 0), false},
+ {IP.IsMulticast, IPv6linklocalallnodes, true},
+ {IP.IsMulticast, IP{0xff, 0x05, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, true},
+ {IP.IsMulticast, IP{0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, false},
+ {IP.IsMulticast, nil, false},
+ {IP.IsInterfaceLocalMulticast, IPv4(224, 0, 0, 0), false},
+ {IP.IsInterfaceLocalMulticast, IPv4(0xff, 0x01, 0, 0), false},
+ {IP.IsInterfaceLocalMulticast, IPv6interfacelocalallnodes, true},
+ {IP.IsInterfaceLocalMulticast, nil, false},
+ {IP.IsLinkLocalMulticast, IPv4(224, 0, 0, 0), true},
+ {IP.IsLinkLocalMulticast, IPv4(239, 0, 0, 0), false},
+ {IP.IsLinkLocalMulticast, IPv4(0xff, 0x02, 0, 0), false},
+ {IP.IsLinkLocalMulticast, IPv6linklocalallrouters, true},
+ {IP.IsLinkLocalMulticast, IP{0xff, 0x05, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, false},
+ {IP.IsLinkLocalMulticast, nil, false},
+ {IP.IsLinkLocalUnicast, IPv4(169, 254, 0, 0), true},
+ {IP.IsLinkLocalUnicast, IPv4(169, 255, 0, 0), false},
+ {IP.IsLinkLocalUnicast, IPv4(0xfe, 0x80, 0, 0), false},
+ {IP.IsLinkLocalUnicast, IP{0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, true},
+ {IP.IsLinkLocalUnicast, IP{0xfe, 0xc0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, false},
+ {IP.IsLinkLocalUnicast, nil, false},
+ {IP.IsGlobalUnicast, IPv4(240, 0, 0, 0), true},
+ {IP.IsGlobalUnicast, IPv4(232, 0, 0, 0), false},
+ {IP.IsGlobalUnicast, IPv4(169, 254, 0, 0), false},
+ {IP.IsGlobalUnicast, IPv4bcast, false},
+ {IP.IsGlobalUnicast, IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0x1, 0x23, 0, 0x12, 0, 0x1}, true},
+ {IP.IsGlobalUnicast, IP{0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, false},
+ {IP.IsGlobalUnicast, IP{0xff, 0x05, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, false},
+ {IP.IsGlobalUnicast, nil, false},
+ {IP.IsPrivate, nil, false},
+ {IP.IsPrivate, IPv4(1, 1, 1, 1), false},
+ {IP.IsPrivate, IPv4(9, 255, 255, 255), false},
+ {IP.IsPrivate, IPv4(10, 0, 0, 0), true},
+ {IP.IsPrivate, IPv4(10, 255, 255, 255), true},
+ {IP.IsPrivate, IPv4(11, 0, 0, 0), false},
+ {IP.IsPrivate, IPv4(172, 15, 255, 255), false},
+ {IP.IsPrivate, IPv4(172, 16, 0, 0), true},
+ {IP.IsPrivate, IPv4(172, 16, 255, 255), true},
+ {IP.IsPrivate, IPv4(172, 23, 18, 255), true},
+ {IP.IsPrivate, IPv4(172, 31, 255, 255), true},
+ {IP.IsPrivate, IPv4(172, 31, 0, 0), true},
+ {IP.IsPrivate, IPv4(172, 32, 0, 0), false},
+ {IP.IsPrivate, IPv4(192, 167, 255, 255), false},
+ {IP.IsPrivate, IPv4(192, 168, 0, 0), true},
+ {IP.IsPrivate, IPv4(192, 168, 255, 255), true},
+ {IP.IsPrivate, IPv4(192, 169, 0, 0), false},
+ {IP.IsPrivate, IP{0xfb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}, false},
+ {IP.IsPrivate, IP{0xfc, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, true},
+ {IP.IsPrivate, IP{0xfc, 0xff, 0x12, 0, 0, 0, 0, 0x44, 0, 0, 0, 0, 0, 0, 0, 0}, true},
+ {IP.IsPrivate, IP{0xfd, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}, true},
+ {IP.IsPrivate, IP{0xfe, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, false},
+}
+
+func name(f any) string {
+ return runtime.FuncForPC(reflect.ValueOf(f).Pointer()).Name()
+}
+
+func TestIPAddrScope(t *testing.T) {
+ for _, tt := range ipAddrScopeTests {
+ if ok := tt.scope(tt.in); ok != tt.ok {
+ t.Errorf("%s(%q) = %v, want %v", name(tt.scope), tt.in, ok, tt.ok)
+ }
+ ip := tt.in.To4()
+ if ip == nil {
+ continue
+ }
+ if ok := tt.scope(ip); ok != tt.ok {
+ t.Errorf("%s(%q) = %v, want %v", name(tt.scope), ip, ok, tt.ok)
+ }
+ }
+}
+
+func BenchmarkIPEqual(b *testing.B) {
+ b.Run("IPv4", func(b *testing.B) {
+ benchmarkIPEqual(b, IPv4len)
+ })
+ b.Run("IPv6", func(b *testing.B) {
+ benchmarkIPEqual(b, IPv6len)
+ })
+}
+
+func benchmarkIPEqual(b *testing.B, size int) {
+ ips := make([]IP, 1000)
+ for i := range ips {
+ ips[i] = make(IP, size)
+ rand.Read(ips[i])
+ }
+ // Half of the N are equal.
+ for i := 0; i < b.N/2; i++ {
+ x := ips[i%len(ips)]
+ y := ips[i%len(ips)]
+ x.Equal(y)
+ }
+ // The other half are not equal.
+ for i := 0; i < b.N/2; i++ {
+ x := ips[i%len(ips)]
+ y := ips[(i+1)%len(ips)]
+ x.Equal(y)
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 10:23:49 +0000