package uuid_test import ( "testing" "github.com/google/go-cmp/cmp" "github.com/v2fly/v2ray-core/v5/common" . "github.com/v2fly/v2ray-core/v5/common/uuid" ) func TestParseBytes(t *testing.T) { str := "2418d087-648d-4990-86e8-19dca1d006d3" bytes := []byte{0x24, 0x18, 0xd0, 0x87, 0x64, 0x8d, 0x49, 0x90, 0x86, 0xe8, 0x19, 0xdc, 0xa1, 0xd0, 0x06, 0xd3} uuid, err := ParseBytes(bytes) common.Must(err) if diff := cmp.Diff(uuid.String(), str); diff != "" { t.Error(diff) } _, err = ParseBytes([]byte{1, 3, 2, 4}) if err == nil { t.Fatal("Expect error but nil") } } func TestParseString(t *testing.T) { str := "2418d087-648d-4990-86e8-19dca1d006d3" expectedBytes := []byte{0x24, 0x18, 0xd0, 0x87, 0x64, 0x8d, 0x49, 0x90, 0x86, 0xe8, 0x19, 0xdc, 0xa1, 0xd0, 0x06, 0xd3} uuid, err := ParseString(str) common.Must(err) if r := cmp.Diff(expectedBytes, uuid.Bytes()); r != "" { t.Fatal(r) } _, err = ParseString("2418d087") if err == nil { t.Fatal("Expect error but nil") } _, err = ParseString("2418d087-648k-4990-86e8-19dca1d006d3") if err == nil { t.Fatal("Expect error but nil") } } func TestNewUUID(t *testing.T) { uuid := New() uuid2, err := ParseString(uuid.String()) common.Must(err) if uuid.String() != uuid2.String() { t.Error("uuid string: ", uuid.String(), " != ", uuid2.String()) } if r := cmp.Diff(uuid.Bytes(), uuid2.Bytes()); r != "" { t.Error(r) } } func TestRandom(t *testing.T) { uuid := New() uuid2 := New() if uuid.String() == uuid2.String() { t.Error("duplicated uuid") } } func TestEquals(t *testing.T) { var uuid *UUID var uuid2 *UUID if !uuid.Equals(uuid2) { t.Error("empty uuid should equal") } uuid3 := New() if uuid.Equals(&uuid3) { t.Error("nil uuid equals non-nil uuid") } }