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package uuid
import (
"errors"
"testing"
"github.com/stretchr/testify/assert"
)
func TestUuid_Bytes(t *testing.T) {
id := make(Uuid, length)
copy(id, NameSpaceDNS.Bytes())
assert.Equal(t, id.Bytes(), NameSpaceDNS.Bytes(), "Bytes should be the same")
}
func TestUuid_Size(t *testing.T) {
id := make(Uuid, length)
assert.Equal(t, 16, id.Size(), "The size of the array should be sixteen")
}
func TestUuid_String(t *testing.T) {
id := Uuid(uuidBytes)
assert.Equal(t, idString, id.String(), "The Format given should match the output")
}
func TestUuid_Variant(t *testing.T) {
bytes := make(Uuid, length)
copy(bytes, uuidBytes[:])
for _, v := range uuidVariants {
for i := 0; i <= 255; i++ {
bytes[variantIndex] = byte(i)
id := createMarshaler(bytes, 4, v)
b := id[variantIndex] >> 4
tVariantConstraint(v, b, id, t)
assert.Equal(t, v, id.Variant(), "%x does not resolve to %x", id.Variant(), v)
}
}
assert.True(t, didMarshalerSetVariantPanic(bytes[:]), "Array creation should panic if invalid variant")
}
func didMarshalerSetVariantPanic(bytes []byte) bool {
return func() (didPanic bool) {
defer func() {
if recover() != nil {
didPanic = true
}
}()
createMarshaler(bytes[:], 4, 0xbb)
return
}()
}
func TestUuid_Version(t *testing.T) {
id := make(Uuid, length)
bytes := make(Uuid, length)
copy(bytes, uuidBytes[:])
assert.Equal(t, Unknown, id.Version(), "The version should be 0")
for v := 0; v < 16; v++ {
for i := 0; i <= 255; i++ {
bytes[versionIndex] = byte(i)
copy(id, bytes)
setVersion(&id[versionIndex], v)
if v > 0 && v < 6 {
assert.Equal(t, Version(v), id.Version(), "%x does not resolve to %x", id.Version(), v)
} else {
assert.Equal(t, Version(v), getVersion(id), "%x does not resolve to %x", getVersion(id), v)
}
}
}
}
func TestImmutable_Bytes(t *testing.T) {
b := make([]byte, length)
copy(b[:], NameSpaceDNS.Bytes())
id := Immutable(b)
assert.Equal(t, NameSpaceDNS.Bytes(), id.Bytes())
}
func TestImmutable_Size(t *testing.T) {
assert.Equal(t, 16, Nil.Size(), "The size of the array should be sixteen")
}
func TestImmutable_String(t *testing.T) {
id := Immutable(uuidBytes)
assert.Equal(t, idString, id.String(), "The Format given should match the output")
}
func TestImmutable_Variant(t *testing.T) {
bytes := make(Uuid, length)
copy(bytes, uuidBytes[:])
for _, v := range uuidVariants {
for i := 0; i <= 255; i++ {
bytes[variantIndex] = byte(i)
id := createMarshaler(bytes, 4, v)
b := id[variantIndex] >> 4
tVariantConstraint(v, b, id, t)
id2 := Immutable(id)
assert.Equal(t, v, id2.Variant(), "%x does not resolve to %x", id2.Variant(), v)
}
}
}
func TestImmutable_Version(t *testing.T) {
id := make(Uuid, length)
bytes := make(Uuid, length)
copy(bytes, uuidBytes[:])
for v := 0; v < 16; v++ {
for i := 0; i <= 255; i++ {
bytes[versionIndex] = byte(i)
copy(id, bytes)
setVersion(&id[versionIndex], v)
id2 := Immutable(id)
if v > 0 && v < 6 {
assert.Equal(t, Version(v), id2.Version(), "%x does not resolve to %x", id2.Version(), v)
} else {
assert.Equal(t, Version(v), getVersion(Uuid(id)), "%x does not resolve to %x", getVersion(Uuid(id)), v)
}
}
}
}
func TestUuid_MarshalBinary(t *testing.T) {
id := Uuid(uuidBytes)
bytes, err := id.MarshalBinary()
assert.Nil(t, err, "There should be no error")
assert.Equal(t, uuidBytes[:], bytes, "Byte should be the same")
}
func TestUuid_UnmarshalBinary(t *testing.T) {
assert.True(t, didUnmarshalPanic(), "Should panic")
u := Uuid{}
err := u.UnmarshalBinary([]byte{1, 2, 3, 4, 5})
assert.Error(t, err, "Expect length error")
err = u.UnmarshalBinary(uuidBytes[:])
u = Uuid{}
err = u.UnmarshalBinary(uuidBytes[:])
assert.Nil(t, err, "There should be no error but got %s", err)
for k, v := range namespaces {
id, _ := Parse(v)
u = Uuid{}
u.UnmarshalBinary(id.Bytes())
assert.Equal(t, id.Bytes(), u.Bytes(), "The array id should equal the uuid id")
assert.Equal(t, k.Bytes(), u.Bytes(), "The array id should equal the uuid id")
}
}
func didUnmarshalPanic() bool {
return func() (didPanic bool) {
defer func() {
if recover() != nil {
didPanic = true
}
}()
u := make(Uuid, length)
u.UnmarshalBinary(uuidBytes[:])
return
}()
}
func TestUuid_Scan(t *testing.T) {
var v Uuid
assert.Nil(t, v)
err := v.Scan(nil)
assert.NoError(t, err, "When nil there should be no error")
assert.Empty(t, v, "Should have no data")
err = v.Scan("")
assert.NoError(t, err, "When nil there should be no error")
assert.Empty(t, v, "Should have no data")
var v2 Uuid
err = v2.Scan(NameSpaceDNS.Bytes())
assert.NoError(t, err, "When nil there should be no error")
assert.Equal(t, NameSpaceDNS.Bytes(), v2.Bytes(), "Values should be the same")
err = v.Scan(NameSpaceDNS.String())
assert.NoError(t, err, "When nil there should be no error")
assert.Equal(t, NameSpaceDNS.String(), v.String(), "Values should be the same")
var v3 Uuid
err = v3.Scan([]byte(NameSpaceDNS.String()))
assert.NoError(t, err, "When []byte represents string should be no error")
assert.Equal(t, NameSpaceDNS.String(), v3.String(), "Values should be the same")
err = v.Scan(22)
assert.Error(t, err, "When wrong type should error")
}
func TestUuid_Value(t *testing.T) {
var v Uuid
assert.Nil(t, v)
id, err := v.Value()
assert.Nil(t, id, "There hsould be no driver valuie")
assert.NoError(t, err, "There should be no error")
ns := Uuid(NameSpaceDNS)
id, err = ns.Value()
assert.NotNil(t, id, "Ther hsould be a vliad driver value")
assert.NoError(t, err, "There should be no error")
}
func getVersion(pId Uuid) Version {
return Version(pId[versionIndex] >> 4)
}
func createMarshaler(pData []byte, pVersion int, pVariant uint8) Uuid {
o := make(Uuid, length)
copy(o, pData)
setVersion(&o[versionIndex], pVersion)
setVariant(&o[variantIndex], pVariant)
return o
}
func setVersion(pByte *byte, pVersion int) {
*pByte &= 0x0f
*pByte |= uint8(pVersion << 4)
}
func setVariant(pByte *byte, pVariant uint8) {
switch pVariant {
case VariantRFC4122:
*pByte &= variantSet
case VariantFuture, VariantMicrosoft:
*pByte &= 0x1F
case VariantNCS:
*pByte &= 0x7F
default:
panic(errors.New("uuid.setVariant: invalid variant mask"))
}
*pByte |= pVariant
}
|
