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