550 lines
14 KiB
Go
550 lines
14 KiB
Go
// Copyright 2016 Google Inc. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package uuid
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"os"
|
|
"runtime"
|
|
"strings"
|
|
"testing"
|
|
"time"
|
|
"unsafe"
|
|
)
|
|
|
|
type test struct {
|
|
in string
|
|
version Version
|
|
variant Variant
|
|
isuuid bool
|
|
}
|
|
|
|
var tests = []test{
|
|
{"f47ac10b-58cc-0372-8567-0e02b2c3d479", 0, RFC4122, true},
|
|
{"f47ac10b-58cc-1372-8567-0e02b2c3d479", 1, RFC4122, true},
|
|
{"f47ac10b-58cc-2372-8567-0e02b2c3d479", 2, RFC4122, true},
|
|
{"f47ac10b-58cc-3372-8567-0e02b2c3d479", 3, RFC4122, true},
|
|
{"f47ac10b-58cc-4372-8567-0e02b2c3d479", 4, RFC4122, true},
|
|
{"f47ac10b-58cc-5372-8567-0e02b2c3d479", 5, RFC4122, true},
|
|
{"f47ac10b-58cc-6372-8567-0e02b2c3d479", 6, RFC4122, true},
|
|
{"f47ac10b-58cc-7372-8567-0e02b2c3d479", 7, RFC4122, true},
|
|
{"f47ac10b-58cc-8372-8567-0e02b2c3d479", 8, RFC4122, true},
|
|
{"f47ac10b-58cc-9372-8567-0e02b2c3d479", 9, RFC4122, true},
|
|
{"f47ac10b-58cc-a372-8567-0e02b2c3d479", 10, RFC4122, true},
|
|
{"f47ac10b-58cc-b372-8567-0e02b2c3d479", 11, RFC4122, true},
|
|
{"f47ac10b-58cc-c372-8567-0e02b2c3d479", 12, RFC4122, true},
|
|
{"f47ac10b-58cc-d372-8567-0e02b2c3d479", 13, RFC4122, true},
|
|
{"f47ac10b-58cc-e372-8567-0e02b2c3d479", 14, RFC4122, true},
|
|
{"f47ac10b-58cc-f372-8567-0e02b2c3d479", 15, RFC4122, true},
|
|
|
|
{"urn:uuid:f47ac10b-58cc-4372-0567-0e02b2c3d479", 4, Reserved, true},
|
|
{"URN:UUID:f47ac10b-58cc-4372-0567-0e02b2c3d479", 4, Reserved, true},
|
|
{"f47ac10b-58cc-4372-0567-0e02b2c3d479", 4, Reserved, true},
|
|
{"f47ac10b-58cc-4372-1567-0e02b2c3d479", 4, Reserved, true},
|
|
{"f47ac10b-58cc-4372-2567-0e02b2c3d479", 4, Reserved, true},
|
|
{"f47ac10b-58cc-4372-3567-0e02b2c3d479", 4, Reserved, true},
|
|
{"f47ac10b-58cc-4372-4567-0e02b2c3d479", 4, Reserved, true},
|
|
{"f47ac10b-58cc-4372-5567-0e02b2c3d479", 4, Reserved, true},
|
|
{"f47ac10b-58cc-4372-6567-0e02b2c3d479", 4, Reserved, true},
|
|
{"f47ac10b-58cc-4372-7567-0e02b2c3d479", 4, Reserved, true},
|
|
{"f47ac10b-58cc-4372-8567-0e02b2c3d479", 4, RFC4122, true},
|
|
{"f47ac10b-58cc-4372-9567-0e02b2c3d479", 4, RFC4122, true},
|
|
{"f47ac10b-58cc-4372-a567-0e02b2c3d479", 4, RFC4122, true},
|
|
{"f47ac10b-58cc-4372-b567-0e02b2c3d479", 4, RFC4122, true},
|
|
{"f47ac10b-58cc-4372-c567-0e02b2c3d479", 4, Microsoft, true},
|
|
{"f47ac10b-58cc-4372-d567-0e02b2c3d479", 4, Microsoft, true},
|
|
{"f47ac10b-58cc-4372-e567-0e02b2c3d479", 4, Future, true},
|
|
{"f47ac10b-58cc-4372-f567-0e02b2c3d479", 4, Future, true},
|
|
|
|
{"f47ac10b158cc-5372-a567-0e02b2c3d479", 0, Invalid, false},
|
|
{"f47ac10b-58cc25372-a567-0e02b2c3d479", 0, Invalid, false},
|
|
{"f47ac10b-58cc-53723a567-0e02b2c3d479", 0, Invalid, false},
|
|
{"f47ac10b-58cc-5372-a56740e02b2c3d479", 0, Invalid, false},
|
|
{"f47ac10b-58cc-5372-a567-0e02-2c3d479", 0, Invalid, false},
|
|
{"g47ac10b-58cc-4372-a567-0e02b2c3d479", 0, Invalid, false},
|
|
}
|
|
|
|
var constants = []struct {
|
|
c interface{}
|
|
name string
|
|
}{
|
|
{Person, "Person"},
|
|
{Group, "Group"},
|
|
{Org, "Org"},
|
|
{Invalid, "Invalid"},
|
|
{RFC4122, "RFC4122"},
|
|
{Reserved, "Reserved"},
|
|
{Microsoft, "Microsoft"},
|
|
{Future, "Future"},
|
|
{Domain(17), "Domain17"},
|
|
{Variant(42), "BadVariant42"},
|
|
}
|
|
|
|
func testTest(t *testing.T, in string, tt test) {
|
|
uuid, err := Parse(in)
|
|
if ok := (err == nil); ok != tt.isuuid {
|
|
t.Errorf("Parse(%s) got %v expected %v\b", in, ok, tt.isuuid)
|
|
}
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
if v := uuid.Variant(); v != tt.variant {
|
|
t.Errorf("Variant(%s) got %d expected %d\b", in, v, tt.variant)
|
|
}
|
|
if v := uuid.Version(); v != tt.version {
|
|
t.Errorf("Version(%s) got %d expected %d\b", in, v, tt.version)
|
|
}
|
|
}
|
|
|
|
func testBytes(t *testing.T, in []byte, tt test) {
|
|
uuid, err := ParseBytes(in)
|
|
if ok := (err == nil); ok != tt.isuuid {
|
|
t.Errorf("ParseBytes(%s) got %v expected %v\b", in, ok, tt.isuuid)
|
|
}
|
|
if err != nil {
|
|
return
|
|
}
|
|
suuid, _ := Parse(string(in))
|
|
if uuid != suuid {
|
|
t.Errorf("ParseBytes(%s) got %v expected %v\b", in, uuid, suuid)
|
|
}
|
|
}
|
|
|
|
func TestUUID(t *testing.T) {
|
|
for _, tt := range tests {
|
|
testTest(t, tt.in, tt)
|
|
testTest(t, strings.ToUpper(tt.in), tt)
|
|
testBytes(t, []byte(tt.in), tt)
|
|
}
|
|
}
|
|
|
|
func TestFromBytes(t *testing.T) {
|
|
b := []byte{
|
|
0x7d, 0x44, 0x48, 0x40,
|
|
0x9d, 0xc0,
|
|
0x11, 0xd1,
|
|
0xb2, 0x45,
|
|
0x5f, 0xfd, 0xce, 0x74, 0xfa, 0xd2,
|
|
}
|
|
uuid, err := FromBytes(b)
|
|
if err != nil {
|
|
t.Fatalf("%s", err)
|
|
}
|
|
for i := 0; i < len(uuid); i++ {
|
|
if b[i] != uuid[i] {
|
|
t.Fatalf("FromBytes() got %v expected %v\b", uuid[:], b)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestConstants(t *testing.T) {
|
|
for x, tt := range constants {
|
|
v, ok := tt.c.(fmt.Stringer)
|
|
if !ok {
|
|
t.Errorf("%x: %v: not a stringer", x, v)
|
|
} else if s := v.String(); s != tt.name {
|
|
v, _ := tt.c.(int)
|
|
t.Errorf("%x: Constant %T:%d gives %q, expected %q", x, tt.c, v, s, tt.name)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestRandomUUID(t *testing.T) {
|
|
m := make(map[string]bool)
|
|
for x := 1; x < 32; x++ {
|
|
uuid := New()
|
|
s := uuid.String()
|
|
if m[s] {
|
|
t.Errorf("NewRandom returned duplicated UUID %s", s)
|
|
}
|
|
m[s] = true
|
|
if v := uuid.Version(); v != 4 {
|
|
t.Errorf("Random UUID of version %s", v)
|
|
}
|
|
if uuid.Variant() != RFC4122 {
|
|
t.Errorf("Random UUID is variant %d", uuid.Variant())
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestNew(t *testing.T) {
|
|
m := make(map[UUID]bool)
|
|
for x := 1; x < 32; x++ {
|
|
s := New()
|
|
if m[s] {
|
|
t.Errorf("New returned duplicated UUID %s", s)
|
|
}
|
|
m[s] = true
|
|
uuid, err := Parse(s.String())
|
|
if err != nil {
|
|
t.Errorf("New.String() returned %q which does not decode", s)
|
|
continue
|
|
}
|
|
if v := uuid.Version(); v != 4 {
|
|
t.Errorf("Random UUID of version %s", v)
|
|
}
|
|
if uuid.Variant() != RFC4122 {
|
|
t.Errorf("Random UUID is variant %d", uuid.Variant())
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestClockSeq(t *testing.T) {
|
|
// Fake time.Now for this test to return a monotonically advancing time; restore it at end.
|
|
defer func(orig func() time.Time) { timeNow = orig }(timeNow)
|
|
monTime := time.Now()
|
|
timeNow = func() time.Time {
|
|
monTime = monTime.Add(1 * time.Second)
|
|
return monTime
|
|
}
|
|
|
|
SetClockSequence(-1)
|
|
uuid1, err := NewUUID()
|
|
if err != nil {
|
|
t.Fatalf("could not create UUID: %v", err)
|
|
}
|
|
uuid2, err := NewUUID()
|
|
if err != nil {
|
|
t.Fatalf("could not create UUID: %v", err)
|
|
}
|
|
|
|
if s1, s2 := uuid1.ClockSequence(), uuid2.ClockSequence(); s1 != s2 {
|
|
t.Errorf("clock sequence %d != %d", s1, s2)
|
|
}
|
|
|
|
SetClockSequence(-1)
|
|
uuid2, err = NewUUID()
|
|
if err != nil {
|
|
t.Fatalf("could not create UUID: %v", err)
|
|
}
|
|
|
|
// Just on the very off chance we generated the same sequence
|
|
// two times we try again.
|
|
if uuid1.ClockSequence() == uuid2.ClockSequence() {
|
|
SetClockSequence(-1)
|
|
uuid2, err = NewUUID()
|
|
if err != nil {
|
|
t.Fatalf("could not create UUID: %v", err)
|
|
}
|
|
}
|
|
if s1, s2 := uuid1.ClockSequence(), uuid2.ClockSequence(); s1 == s2 {
|
|
t.Errorf("Duplicate clock sequence %d", s1)
|
|
}
|
|
|
|
SetClockSequence(0x1234)
|
|
uuid1, err = NewUUID()
|
|
if err != nil {
|
|
t.Fatalf("could not create UUID: %v", err)
|
|
}
|
|
if seq := uuid1.ClockSequence(); seq != 0x1234 {
|
|
t.Errorf("%s: expected seq 0x1234 got 0x%04x", uuid1, seq)
|
|
}
|
|
}
|
|
|
|
func TestCoding(t *testing.T) {
|
|
text := "7d444840-9dc0-11d1-b245-5ffdce74fad2"
|
|
urn := "urn:uuid:7d444840-9dc0-11d1-b245-5ffdce74fad2"
|
|
data := UUID{
|
|
0x7d, 0x44, 0x48, 0x40,
|
|
0x9d, 0xc0,
|
|
0x11, 0xd1,
|
|
0xb2, 0x45,
|
|
0x5f, 0xfd, 0xce, 0x74, 0xfa, 0xd2,
|
|
}
|
|
if v := data.String(); v != text {
|
|
t.Errorf("%x: encoded to %s, expected %s", data, v, text)
|
|
}
|
|
if v := data.URN(); v != urn {
|
|
t.Errorf("%x: urn is %s, expected %s", data, v, urn)
|
|
}
|
|
|
|
uuid, err := Parse(text)
|
|
if err != nil {
|
|
t.Errorf("Parse returned unexpected error %v", err)
|
|
}
|
|
if data != uuid {
|
|
t.Errorf("%s: decoded to %s, expected %s", text, uuid, data)
|
|
}
|
|
}
|
|
|
|
func TestVersion1(t *testing.T) {
|
|
uuid1, err := NewUUID()
|
|
if err != nil {
|
|
t.Fatalf("could not create UUID: %v", err)
|
|
}
|
|
uuid2, err := NewUUID()
|
|
if err != nil {
|
|
t.Fatalf("could not create UUID: %v", err)
|
|
}
|
|
|
|
if uuid1 == uuid2 {
|
|
t.Errorf("%s:duplicate uuid", uuid1)
|
|
}
|
|
if v := uuid1.Version(); v != 1 {
|
|
t.Errorf("%s: version %s expected 1", uuid1, v)
|
|
}
|
|
if v := uuid2.Version(); v != 1 {
|
|
t.Errorf("%s: version %s expected 1", uuid2, v)
|
|
}
|
|
n1 := uuid1.NodeID()
|
|
n2 := uuid2.NodeID()
|
|
if !bytes.Equal(n1, n2) {
|
|
t.Errorf("Different nodes %x != %x", n1, n2)
|
|
}
|
|
t1 := uuid1.Time()
|
|
t2 := uuid2.Time()
|
|
q1 := uuid1.ClockSequence()
|
|
q2 := uuid2.ClockSequence()
|
|
|
|
switch {
|
|
case t1 == t2 && q1 == q2:
|
|
t.Error("time stopped")
|
|
case t1 > t2 && q1 == q2:
|
|
t.Error("time reversed")
|
|
case t1 < t2 && q1 != q2:
|
|
t.Error("clock sequence changed unexpectedly")
|
|
}
|
|
}
|
|
|
|
func TestNode(t *testing.T) {
|
|
// This test is mostly to make sure we don't leave nodeMu locked.
|
|
ifname = ""
|
|
if ni := NodeInterface(); ni != "" {
|
|
t.Errorf("NodeInterface got %q, want %q", ni, "")
|
|
}
|
|
if SetNodeInterface("xyzzy") {
|
|
t.Error("SetNodeInterface succeeded on a bad interface name")
|
|
}
|
|
if !SetNodeInterface("") {
|
|
t.Error("SetNodeInterface failed")
|
|
}
|
|
if runtime.GOARCH != "js" {
|
|
if ni := NodeInterface(); ni == "" {
|
|
t.Error("NodeInterface returned an empty string")
|
|
}
|
|
}
|
|
|
|
ni := NodeID()
|
|
if len(ni) != 6 {
|
|
t.Errorf("ni got %d bytes, want 6", len(ni))
|
|
}
|
|
hasData := false
|
|
for _, b := range ni {
|
|
if b != 0 {
|
|
hasData = true
|
|
}
|
|
}
|
|
if !hasData {
|
|
t.Error("nodeid is all zeros")
|
|
}
|
|
|
|
id := []byte{1, 2, 3, 4, 5, 6, 7, 8}
|
|
SetNodeID(id)
|
|
ni = NodeID()
|
|
if !bytes.Equal(ni, id[:6]) {
|
|
t.Errorf("got nodeid %v, want %v", ni, id[:6])
|
|
}
|
|
|
|
if ni := NodeInterface(); ni != "user" {
|
|
t.Errorf("got interface %q, want %q", ni, "user")
|
|
}
|
|
}
|
|
|
|
func TestNodeAndTime(t *testing.T) {
|
|
// Time is February 5, 1998 12:30:23.136364800 AM GMT
|
|
|
|
uuid, err := Parse("7d444840-9dc0-11d1-b245-5ffdce74fad2")
|
|
if err != nil {
|
|
t.Fatalf("Parser returned unexpected error %v", err)
|
|
}
|
|
node := []byte{0x5f, 0xfd, 0xce, 0x74, 0xfa, 0xd2}
|
|
|
|
ts := uuid.Time()
|
|
c := time.Unix(ts.UnixTime())
|
|
want := time.Date(1998, 2, 5, 0, 30, 23, 136364800, time.UTC)
|
|
if !c.Equal(want) {
|
|
t.Errorf("Got time %v, want %v", c, want)
|
|
}
|
|
if !bytes.Equal(node, uuid.NodeID()) {
|
|
t.Errorf("Expected node %v got %v", node, uuid.NodeID())
|
|
}
|
|
}
|
|
|
|
func TestMD5(t *testing.T) {
|
|
uuid := NewMD5(NameSpaceDNS, []byte("python.org")).String()
|
|
want := "6fa459ea-ee8a-3ca4-894e-db77e160355e"
|
|
if uuid != want {
|
|
t.Errorf("MD5: got %q expected %q", uuid, want)
|
|
}
|
|
}
|
|
|
|
func TestSHA1(t *testing.T) {
|
|
uuid := NewSHA1(NameSpaceDNS, []byte("python.org")).String()
|
|
want := "886313e1-3b8a-5372-9b90-0c9aee199e5d"
|
|
if uuid != want {
|
|
t.Errorf("SHA1: got %q expected %q", uuid, want)
|
|
}
|
|
}
|
|
|
|
func TestNodeID(t *testing.T) {
|
|
nid := []byte{1, 2, 3, 4, 5, 6}
|
|
SetNodeInterface("")
|
|
s := NodeInterface()
|
|
if runtime.GOARCH != "js" {
|
|
if s == "" || s == "user" {
|
|
t.Errorf("NodeInterface %q after SetInterface", s)
|
|
}
|
|
}
|
|
node1 := NodeID()
|
|
if node1 == nil {
|
|
t.Error("NodeID nil after SetNodeInterface", s)
|
|
}
|
|
SetNodeID(nid)
|
|
s = NodeInterface()
|
|
if s != "user" {
|
|
t.Errorf("Expected NodeInterface %q got %q", "user", s)
|
|
}
|
|
node2 := NodeID()
|
|
if node2 == nil {
|
|
t.Error("NodeID nil after SetNodeID", s)
|
|
}
|
|
if bytes.Equal(node1, node2) {
|
|
t.Error("NodeID not changed after SetNodeID", s)
|
|
} else if !bytes.Equal(nid, node2) {
|
|
t.Errorf("NodeID is %x, expected %x", node2, nid)
|
|
}
|
|
}
|
|
|
|
func testDCE(t *testing.T, name string, uuid UUID, err error, domain Domain, id uint32) {
|
|
if err != nil {
|
|
t.Errorf("%s failed: %v", name, err)
|
|
return
|
|
}
|
|
if v := uuid.Version(); v != 2 {
|
|
t.Errorf("%s: %s: expected version 2, got %s", name, uuid, v)
|
|
return
|
|
}
|
|
if v := uuid.Domain(); v != domain {
|
|
t.Errorf("%s: %s: expected domain %d, got %d", name, uuid, domain, v)
|
|
}
|
|
if v := uuid.ID(); v != id {
|
|
t.Errorf("%s: %s: expected id %d, got %d", name, uuid, id, v)
|
|
}
|
|
}
|
|
|
|
func TestDCE(t *testing.T) {
|
|
uuid, err := NewDCESecurity(42, 12345678)
|
|
testDCE(t, "NewDCESecurity", uuid, err, 42, 12345678)
|
|
uuid, err = NewDCEPerson()
|
|
testDCE(t, "NewDCEPerson", uuid, err, Person, uint32(os.Getuid()))
|
|
uuid, err = NewDCEGroup()
|
|
testDCE(t, "NewDCEGroup", uuid, err, Group, uint32(os.Getgid()))
|
|
}
|
|
|
|
type badRand struct{}
|
|
|
|
func (r badRand) Read(buf []byte) (int, error) {
|
|
for i := range buf {
|
|
buf[i] = byte(i)
|
|
}
|
|
return len(buf), nil
|
|
}
|
|
|
|
func TestBadRand(t *testing.T) {
|
|
SetRand(badRand{})
|
|
uuid1 := New()
|
|
uuid2 := New()
|
|
if uuid1 != uuid2 {
|
|
t.Errorf("expected duplicates, got %q and %q", uuid1, uuid2)
|
|
}
|
|
SetRand(nil)
|
|
uuid1 = New()
|
|
uuid2 = New()
|
|
if uuid1 == uuid2 {
|
|
t.Errorf("unexpected duplicates, got %q", uuid1)
|
|
}
|
|
}
|
|
|
|
var asString = "f47ac10b-58cc-0372-8567-0e02b2c3d479"
|
|
var asBytes = []byte(asString)
|
|
|
|
func BenchmarkParse(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
_, err := Parse(asString)
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
func BenchmarkParseBytes(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
_, err := ParseBytes(asBytes)
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
// parseBytesUnsafe is to benchmark using unsafe.
|
|
func parseBytesUnsafe(b []byte) (UUID, error) {
|
|
return Parse(*(*string)(unsafe.Pointer(&b)))
|
|
}
|
|
|
|
func BenchmarkParseBytesUnsafe(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
_, err := parseBytesUnsafe(asBytes)
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
// parseBytesCopy is to benchmark not using unsafe.
|
|
func parseBytesCopy(b []byte) (UUID, error) {
|
|
return Parse(string(b))
|
|
}
|
|
|
|
func BenchmarkParseBytesCopy(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
_, err := parseBytesCopy(asBytes)
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
func BenchmarkNew(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
New()
|
|
}
|
|
}
|
|
|
|
func BenchmarkUUID_String(b *testing.B) {
|
|
uuid, err := Parse("f47ac10b-58cc-0372-8567-0e02b2c3d479")
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
for i := 0; i < b.N; i++ {
|
|
if uuid.String() == "" {
|
|
b.Fatal("invalid uuid")
|
|
}
|
|
}
|
|
}
|
|
|
|
func BenchmarkUUID_URN(b *testing.B) {
|
|
uuid, err := Parse("f47ac10b-58cc-0372-8567-0e02b2c3d479")
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
for i := 0; i < b.N; i++ {
|
|
if uuid.URN() == "" {
|
|
b.Fatal("invalid uuid")
|
|
}
|
|
}
|
|
}
|