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tag_test.go
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package cbor
import (
"bytes"
"fmt"
"io"
"math/big"
"reflect"
"strings"
"testing"
"time"
)
func TestTagNewTypeWithBuiltinUnderlyingType(t *testing.T) {
type myBool bool
type myUint uint
type myUint8 uint8
type myUint16 uint16
type myUint32 uint32
type myUint64 uint64
type myInt int
type myInt8 int8
type myInt16 int16
type myInt32 int32
type myInt64 int64
type myFloat32 float32
type myFloat64 float64
type myString string
type myByteSlice []byte
type myIntSlice []int
type myIntArray [4]int
type myMapIntInt map[int]int
types := []reflect.Type{
reflect.TypeOf(myBool(false)),
reflect.TypeOf(myUint(0)),
reflect.TypeOf(myUint8(0)),
reflect.TypeOf(myUint16(0)),
reflect.TypeOf(myUint32(0)),
reflect.TypeOf(myUint64(0)),
reflect.TypeOf(myInt(0)),
reflect.TypeOf(myInt8(0)),
reflect.TypeOf(myInt16(0)),
reflect.TypeOf(myInt32(0)),
reflect.TypeOf(myInt64(0)),
reflect.TypeOf(myFloat32(0)),
reflect.TypeOf(myFloat64(0)),
reflect.TypeOf(myString("")),
reflect.TypeOf(myByteSlice([]byte{})),
reflect.TypeOf(myIntSlice([]int{})),
reflect.TypeOf(myIntArray([4]int{})),
reflect.TypeOf(myMapIntInt(map[int]int{})),
}
tags := NewTagSet()
for i, typ := range types {
tagNum := uint64(100 + i)
if err := tags.Add(TagOptions{EncTag: EncTagRequired, DecTag: DecTagRequired}, typ, tagNum); err != nil {
t.Fatalf("TagSet.Add(%s, %d) returned error %v", typ, tagNum, err)
}
}
em, _ := EncOptions{Sort: SortCanonical}.EncModeWithTags(tags)
dm, _ := DecOptions{}.DecModeWithTags(tags)
testCases := []roundTripTest{
{
name: "bool",
obj: myBool(true),
wantCborData: hexDecode("d864f5"),
},
{
name: "uint",
obj: myUint(0),
wantCborData: hexDecode("d86500"),
},
{
name: "uint8",
obj: myUint8(0),
wantCborData: hexDecode("d86600"),
},
{
name: "uint16",
obj: myUint16(1000),
wantCborData: hexDecode("d8671903e8"),
},
{
name: "uint32",
obj: myUint32(1000000),
wantCborData: hexDecode("d8681a000f4240"),
},
{
name: "uint64",
obj: myUint64(1000000000000),
wantCborData: hexDecode("d8691b000000e8d4a51000"),
},
{
name: "int",
obj: myInt(-1),
wantCborData: hexDecode("d86a20"),
},
{
name: "int8",
obj: myInt8(-1),
wantCborData: hexDecode("d86b20"),
},
{
name: "int16",
obj: myInt16(-1000),
wantCborData: hexDecode("d86c3903e7"),
},
{
name: "int32",
obj: myInt32(-1000),
wantCborData: hexDecode("d86d3903e7"),
},
{
name: "int64",
obj: myInt64(-1000),
wantCborData: hexDecode("d86e3903e7"),
},
{
name: "float32",
obj: myFloat32(100000.0),
wantCborData: hexDecode("d86ffa47c35000"),
},
{
name: "float64",
obj: myFloat64(1.1),
wantCborData: hexDecode("d870fb3ff199999999999a"),
},
{
name: "string",
obj: myString("a"),
wantCborData: hexDecode("d8716161"),
},
{
name: "[]byte",
obj: myByteSlice([]byte{1, 2, 3, 4}),
wantCborData: hexDecode("d8724401020304"),
},
{
name: "[]int",
obj: myIntSlice([]int{1, 2, 3, 4}),
wantCborData: hexDecode("d8738401020304"),
},
{
name: "[4]int",
obj: myIntArray([...]int{1, 2, 3, 4}),
wantCborData: hexDecode("d8748401020304"),
},
{
name: "map[int]int",
obj: myMapIntInt(map[int]int{1: 2, 3: 4}),
wantCborData: hexDecode("d875a201020304"),
},
}
testRoundTrip(t, testCases, em, dm)
}
func TestTagBinaryMarshalerUnmarshaler(t *testing.T) {
t1 := reflect.TypeOf((*number)(nil)) // Use *number for testing purpose
t2 := reflect.TypeOf(stru{})
tags := NewTagSet()
if err := tags.Add(TagOptions{EncTag: EncTagRequired, DecTag: DecTagRequired}, t1, 123); err != nil {
t.Fatalf("TagSet.Add(%s, %d) returned error %v", t1, 123, err)
}
if err := tags.Add(TagOptions{EncTag: EncTagRequired, DecTag: DecTagRequired}, t2, 124); err != nil {
t.Fatalf("TagSet.Add(%s, %d) returned error %v", t2, 124, err)
}
em, _ := EncOptions{}.EncModeWithTags(tags)
dm, _ := DecOptions{}.DecModeWithTags(tags)
testCases := []roundTripTest{
{
name: "primitive obj",
obj: number(1234567890),
wantCborData: hexDecode("d87b4800000000499602d2"),
},
{
name: "struct obj",
obj: stru{a: "a", b: "b", c: "c"},
wantCborData: hexDecode("d87c45612C622C63"),
},
}
testRoundTrip(t, testCases, em, dm)
}
func TestTagStruct(t *testing.T) {
type T struct {
S string `cbor:"s,omitempty"`
}
t1 := reflect.TypeOf(T{})
tags := NewTagSet()
if err := tags.Add(TagOptions{EncTag: EncTagRequired, DecTag: DecTagRequired}, t1, 100); err != nil {
t.Fatalf("TagSet.Add(%s, %d) returned error %v", t1, 100, err)
}
em, _ := EncOptions{}.EncModeWithTags(tags)
dm, _ := DecOptions{}.DecModeWithTags(tags)
data := hexDecode("d864a0") // {}
var v T
if err := dm.Unmarshal(data, &v); err != nil {
t.Errorf("Unmarshal() returned error %v", err)
}
b, err := em.Marshal(v)
if err != nil {
t.Errorf("Marshal(%+v) returned error %v", v, err)
}
if !bytes.Equal(b, data) {
t.Errorf("Marshal(%+v) = 0x%x, want 0x%x", v, b, data)
}
}
func TestTagFixedLengthStruct(t *testing.T) {
type T struct {
S string `cbor:"s"`
}
t1 := reflect.TypeOf(T{})
tags := NewTagSet()
if err := tags.Add(TagOptions{EncTag: EncTagRequired, DecTag: DecTagRequired}, t1, 100); err != nil {
t.Fatalf("TagSet.Add(%s, %d) returned error %v", t1, 100, err)
}
em, _ := EncOptions{}.EncModeWithTags(tags)
dm, _ := DecOptions{}.DecModeWithTags(tags)
data := hexDecode("d864a1617360") // {"s":""}
var v T
if err := dm.Unmarshal(data, &v); err != nil {
t.Errorf("Unmarshal() returned error %v", err)
}
b, err := em.Marshal(v)
if err != nil {
t.Errorf("Marshal(%+v) returned error %v", v, err)
}
if !bytes.Equal(b, data) {
t.Errorf("Marshal(%+v) = 0x%x, want 0x%x", v, b, data)
}
}
func TestTagToArrayStruct(t *testing.T) {
type coseHeader struct {
Alg int `cbor:"1,keyasint,omitempty"`
Kid []byte `cbor:"4,keyasint,omitempty"`
IV []byte `cbor:"5,keyasint,omitempty"`
}
type signedCWT struct {
_ struct{} `cbor:",toarray"`
Protected []byte
Unprotected coseHeader
Payload []byte
Signature []byte
}
t1 := reflect.TypeOf(signedCWT{})
tags := NewTagSet()
if err := tags.Add(TagOptions{EncTag: EncTagRequired, DecTag: DecTagRequired}, t1, 18); err != nil {
t.Fatalf("TagSet.Add(%s, %d) returned error %v", t1, 18, err)
}
em, _ := EncOptions{}.EncModeWithTags(tags)
dm, _ := DecOptions{}.DecModeWithTags(tags)
// Data from https://tools.ietf.org/html/rfc8392#appendix-A section A.3
data := hexDecode("d28443a10126a104524173796d6d657472696345434453413235365850a70175636f61703a2f2f61732e6578616d706c652e636f6d02656572696b77037818636f61703a2f2f6c696768742e6578616d706c652e636f6d041a5612aeb0051a5610d9f0061a5610d9f007420b7158405427c1ff28d23fbad1f29c4c7c6a555e601d6fa29f9179bc3d7438bacaca5acd08c8d4d4f96131680c429a01f85951ecee743a52b9b63632c57209120e1c9e30")
var v signedCWT
if err := dm.Unmarshal(data, &v); err != nil {
t.Errorf("Unmarshal() returned error %v", err)
}
b, err := em.Marshal(v)
if err != nil {
t.Errorf("Marshal(%+v) returned error %v", v, err)
}
if !bytes.Equal(b, data) {
t.Errorf("Marshal(%+v) = 0x%x, want 0x%x", v, b, data)
}
}
func TestNestedTagStruct(t *testing.T) {
type coseHeader struct {
Alg int `cbor:"1,keyasint,omitempty"`
Kid []byte `cbor:"4,keyasint,omitempty"`
IV []byte `cbor:"5,keyasint,omitempty"`
}
type macedCOSE struct {
_ struct{} `cbor:",toarray"`
Protected []byte
Unprotected coseHeader
Payload []byte
Tag []byte
}
t1 := reflect.TypeOf(macedCOSE{})
// Register tag CBOR Web Token (CWT) 61 and COSE_Mac0 17 with macedCOSE type
tags := NewTagSet()
if err := tags.Add(TagOptions{EncTag: EncTagRequired, DecTag: DecTagRequired}, t1, 61, 17); err != nil {
t.Fatalf("TagSet.Add(%s, %d, %v) returned error %v", t1, 61, 17, err)
}
em, _ := EncOptions{}.EncModeWithTags(tags)
dm, _ := DecOptions{}.DecModeWithTags(tags)
// Data from https://tools.ietf.org/html/rfc8392#appendix-A section A.4
data := hexDecode("d83dd18443a10104a1044c53796d6d65747269633235365850a70175636f61703a2f2f61732e6578616d706c652e636f6d02656572696b77037818636f61703a2f2f6c696768742e6578616d706c652e636f6d041a5612aeb0051a5610d9f0061a5610d9f007420b7148093101ef6d789200")
var v macedCOSE
if err := dm.Unmarshal(data, &v); err != nil {
t.Errorf("Unmarshal() returned error %v", err)
}
b, err := em.Marshal(v)
if err != nil {
t.Errorf("Marshal(%+v) returned error %v", v, err)
}
if !bytes.Equal(b, data) {
t.Errorf("Marshal(%+v) = 0x%x, want 0x%x", v, b, data)
}
}
func TestAddTagError(t *testing.T) {
type myInt int
testCases := []struct {
name string
typ reflect.Type
num uint64
opts TagOptions
wantErrorMsg string
}{
{
name: "nil type",
typ: nil,
num: 100,
opts: TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired},
wantErrorMsg: "cbor: cannot add nil content type to TagSet",
},
{
name: "DecTag is DecTagIgnored && EncTag is EncTagNone",
typ: reflect.TypeOf(myInt(0)),
num: 100,
opts: TagOptions{DecTag: DecTagIgnored, EncTag: EncTagNone},
wantErrorMsg: "cbor: cannot add tag with DecTagIgnored and EncTagNone options to TagSet",
},
{
name: "time.Time",
typ: reflect.TypeOf(time.Time{}),
num: 101,
opts: TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired},
wantErrorMsg: "cbor: cannot add time.Time to TagSet, use EncOptions.TimeTag and DecOptions.TimeTag instead",
},
{
name: "builtin type string",
typ: reflect.TypeOf(""),
num: 102,
opts: TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired},
wantErrorMsg: "cbor: can only add named types to TagSet, got string",
},
{
name: "unnamed type struct{}",
typ: reflect.TypeOf(struct{}{}),
num: 103,
opts: TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired},
wantErrorMsg: "cbor: can only add named types to TagSet, got struct {}",
},
{
name: "interface",
typ: reflect.TypeOf((*io.Reader)(nil)).Elem(),
num: 104,
opts: TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired},
wantErrorMsg: "cbor: can only add named types to TagSet, got io.Reader",
},
{
name: "cbor.Tag",
typ: reflect.TypeOf(Tag{}),
num: 105,
opts: TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired},
wantErrorMsg: "cbor: cannot add cbor.Tag to TagSet",
},
{
name: "cbor.RawTag",
typ: reflect.TypeOf(RawTag{}),
num: 106,
opts: TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired},
wantErrorMsg: "cbor: cannot add cbor.RawTag to TagSet",
},
{
name: "big.Int",
typ: reflect.TypeOf(big.Int{}),
num: 107,
opts: TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired},
wantErrorMsg: "cbor: cannot add big.Int to TagSet, it's built-in and supported automatically",
},
/*
{
name: "cbor.Unmarshaler",
typ: reflect.TypeOf(number2(0)),
num: 107,
opts: TagOptions{DecTag: DecTagRequired, EncTag: EncTagNone},
wantErrorMsg: "cbor: cannot add cbor.Unmarshaler to TagSet with DecTag != DecTagIgnored",
},
{
name: "cbor.Marshaler",
typ: reflect.TypeOf(number2(0)),
num: 108,
opts: TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired},
wantErrorMsg: "cbor: cannot add cbor.Marshaler to TagSet with EncTag != EncTagNone",
},
*/
{
name: "tag number 0",
typ: reflect.TypeOf(myInt(0)),
num: 0,
opts: TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired},
wantErrorMsg: "cbor: cannot add tag number 0 or 1 to TagSet, use EncOptions.TimeTag and DecOptions.TimeTag instead",
},
{
name: "tag number 1",
typ: reflect.TypeOf(myInt(0)),
num: 1,
opts: TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired},
wantErrorMsg: "cbor: cannot add tag number 0 or 1 to TagSet, use EncOptions.TimeTag and DecOptions.TimeTag instead",
},
{
name: "tag number 2",
typ: reflect.TypeOf(myInt(0)),
num: 2,
opts: TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired},
wantErrorMsg: "cbor: cannot add tag number 2 or 3 to TagSet, it's built-in and supported automatically",
},
{
name: "tag number 3",
typ: reflect.TypeOf(myInt(0)),
num: 3,
opts: TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired},
wantErrorMsg: "cbor: cannot add tag number 2 or 3 to TagSet, it's built-in and supported automatically",
},
{
name: "tag number 55799",
typ: reflect.TypeOf(myInt(0)),
num: 55799,
opts: TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired},
wantErrorMsg: "cbor: cannot add tag number 55799 to TagSet, it's built-in and ignored automatically",
},
}
tags := NewTagSet()
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
if err := tags.Add(tc.opts, tc.typ, tc.num); err == nil {
t.Errorf("TagSet.Add(%s, %d) didn't return an error", tc.typ.String(), tc.num)
} else if err.Error() != tc.wantErrorMsg {
var typeString string
if tc.typ == nil {
typeString = "nil"
} else {
typeString = tc.typ.String()
}
t.Errorf("TagSet.Add(%s, %d) returned error msg %q, want %q", typeString, tc.num, err, tc.wantErrorMsg)
}
})
}
}
func TestAddDuplicateTagContentTypeError(t *testing.T) {
type myInt int
myIntType := reflect.TypeOf(myInt(0))
wantErrorMsg := "cbor: content type cbor.myInt already exists in TagSet"
tags := NewTagSet()
// Add myIntType and 100 to tags
if err := tags.Add(TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired}, myIntType, 100); err != nil {
t.Errorf("TagSet.Add(%s, %d) returned error %v", myIntType.String(), 100, err)
}
// Add myIntType and 101 to tags
if err := tags.Add(TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired}, myIntType, 101); err == nil {
t.Errorf("TagSet.Add(%s, %d) didn't return an error", myIntType.String(), 101)
} else if err.Error() != wantErrorMsg {
t.Errorf("TagSet.Add(%s, %d) returned error msg %q, want %q", myIntType, 101, err, wantErrorMsg)
}
}
func TestAddDuplicateTagNumError(t *testing.T) {
type myBool bool
type myInt int
myBoolType := reflect.TypeOf(myBool(false))
myIntType := reflect.TypeOf(myInt(0))
wantErrorMsg := "cbor: tag number [100] already exists in TagSet"
tags := NewTagSet()
// Add myIntType and 100 to tags
if err := tags.Add(TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired}, myIntType, 100); err != nil {
t.Errorf("TagSet.Add(%s, %d) returned error %v", myIntType.String(), 100, err)
}
// Add myBoolType and 100 to tags
if err := tags.Add(TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired}, myBoolType, 100); err == nil {
t.Errorf("TagSet.Add(%s, %d) didn't return an error", myBoolType.String(), 100)
} else if err.Error() != wantErrorMsg {
t.Errorf("TagSet.Add(%s, %d) returned error msg %q, want %q", myBoolType, 100, err, wantErrorMsg)
}
}
func TestAddDuplicateTagNumsError(t *testing.T) {
type myBool bool
type myInt int
myBoolType := reflect.TypeOf(myBool(false))
myIntType := reflect.TypeOf(myInt(0))
wantErrorMsg := "cbor: tag number [100 101] already exists in TagSet"
tags := NewTagSet()
// Add myIntType and [100, 101] to tags
if err := tags.Add(TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired}, myIntType, 100, 101); err != nil {
t.Errorf("TagSet.Add(%s, %d, %d) returned error %v", myIntType.String(), 100, 101, err)
}
// Add myBoolType and [100, 101] to tags
if err := tags.Add(TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired}, myBoolType, 100, 101); err == nil {
t.Errorf("TagSet.Add(%s, %d, %d) didn't return an error", myBoolType.String(), 100, 101)
} else if err.Error() != wantErrorMsg {
t.Errorf("TagSet.Add(%s, %d, %d) returned error msg %q, want %q", myBoolType, 100, 101, err, wantErrorMsg)
}
}
func TestAddRemoveTag(t *testing.T) {
type myInt int
type myFloat float64
myIntType := reflect.TypeOf(myInt(0))
myFloatType := reflect.TypeOf(myFloat(0.0))
pMyIntType := reflect.TypeOf((*myInt)(nil))
pMyFloatType := reflect.TypeOf((*myFloat)(nil))
tags := NewTagSet()
stags := tags.(*syncTagSet)
if err := tags.Add(TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired}, myIntType, 100); err != nil {
t.Errorf("TagSet.Add(%s, %d) returned error %v", myIntType.String(), 100, err)
}
if err := tags.Add(TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired}, myFloatType, 101); err != nil {
t.Errorf("TagSet.Add(%s, %d) returned error %v", myFloatType.String(), 101, err)
}
if err := tags.Add(TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired}, pMyIntType, 102); err == nil {
t.Errorf("TagSet.Add(%s, %d) didn't return an error", pMyIntType.String(), 102)
}
if err := tags.Add(TagOptions{DecTag: DecTagRequired, EncTag: EncTagRequired}, pMyFloatType, 103); err == nil {
t.Errorf("TagSet.Add(%s, %d) didn't return an error", pMyFloatType.String(), 103)
}
if len(stags.t) != 2 {
t.Errorf("TagSet len is %d, want %d", len(stags.t), 2)
}
tags.Remove(pMyIntType)
if len(stags.t) != 1 {
t.Errorf("TagSet len is %d, want %d", len(stags.t), 1)
}
tags.Remove(pMyFloatType)
if len(stags.t) != 0 {
t.Errorf("TagSet len is %d, want %d", len(stags.t), 0)
}
tags.Remove(myIntType)
tags.Remove(myFloatType)
}
func TestAddTagTypeAliasError(t *testing.T) {
type myBool = bool
type myUint = uint
type myUint8 = uint8
type myUint16 = uint16
type myUint32 = uint32
type myUint64 = uint64
type myInt = int
type myInt8 = int8
type myInt16 = int16
type myInt32 = int32
type myInt64 = int64
type myFloat32 = float32
type myFloat64 = float64
type myString = string
type myByteSlice = []byte
type myIntSlice = []int
type myIntArray = [4]int
type myMapIntInt = map[int]int
testCases := []struct {
name string
typ reflect.Type
wantErrorMsg string
}{
{
name: "bool",
typ: reflect.TypeOf(myBool(false)),
wantErrorMsg: "cbor: can only add named types to TagSet, got bool",
},
{
name: "uint",
typ: reflect.TypeOf(myUint(0)),
wantErrorMsg: "cbor: can only add named types to TagSet, got uint",
},
{
name: "uint8",
typ: reflect.TypeOf(myUint8(0)),
wantErrorMsg: "cbor: can only add named types to TagSet, got uint8",
},
{
name: "uint16",
typ: reflect.TypeOf(myUint16(0)),
wantErrorMsg: "cbor: can only add named types to TagSet, got uint16",
},
{
name: "uint32",
typ: reflect.TypeOf(myUint32(0)),
wantErrorMsg: "cbor: can only add named types to TagSet, got uint32",
},
{
name: "uint64",
typ: reflect.TypeOf(myUint64(0)),
wantErrorMsg: "cbor: can only add named types to TagSet, got uint64",
},
{
name: "int",
typ: reflect.TypeOf(myInt(0)),
wantErrorMsg: "cbor: can only add named types to TagSet, got int",
},
{
name: "int8",
typ: reflect.TypeOf(myInt8(0)),
wantErrorMsg: "cbor: can only add named types to TagSet, got int8",
},
{
name: "int16",
typ: reflect.TypeOf(myInt16(0)),
wantErrorMsg: "cbor: can only add named types to TagSet, got int16",
},
{
name: "int32",
typ: reflect.TypeOf(myInt32(0)),
wantErrorMsg: "cbor: can only add named types to TagSet, got int32",
},
{
name: "int64",
typ: reflect.TypeOf(myInt64(0)),
wantErrorMsg: "cbor: can only add named types to TagSet, got int64",
},
{
name: "float32",
typ: reflect.TypeOf(myFloat32(0.0)),
wantErrorMsg: "cbor: can only add named types to TagSet, got float32",
},
{
name: "float64",
typ: reflect.TypeOf(myFloat64(0.0)),
wantErrorMsg: "cbor: can only add named types to TagSet, got float64",
},
{
name: "string",
typ: reflect.TypeOf(myString("")),
wantErrorMsg: "cbor: can only add named types to TagSet, got string",
},
{
name: "[]byte",
typ: reflect.TypeOf(myByteSlice([]byte{})), //nolint:unconvert
wantErrorMsg: "cbor: can only add named types to TagSet, got []uint8",
},
{
name: "[]int",
typ: reflect.TypeOf(myIntSlice([]int{})), //nolint:unconvert
wantErrorMsg: "cbor: can only add named types to TagSet, got []int",
},
{
name: "[4]int",
typ: reflect.TypeOf(myIntArray([4]int{})), //nolint:unconvert
wantErrorMsg: "cbor: can only add named types to TagSet, got [4]int",
},
{
name: "map[int]int",
typ: reflect.TypeOf(myMapIntInt(map[int]int{})), //nolint:unconvert
wantErrorMsg: "cbor: can only add named types to TagSet, got map[int]int",
},
}
tags := NewTagSet()
for i, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
if err := tags.Add(TagOptions{EncTag: EncTagRequired, DecTag: DecTagRequired}, tc.typ, uint64(100+i)); err == nil {
t.Errorf("TagSet.Add(%s, %d) didn't return an error", tc.typ.String(), 0)
} else if err.Error() != tc.wantErrorMsg {
t.Errorf("TagSet.Add(%s, %d) returned error msg %q, want %q", tc.typ.String(), 0, err, tc.wantErrorMsg)
}
})
}
}
// TestDecodeTag decodes tag data with DecTagRequired/EncTagOptional/EncTagNone options.
func TestDecodeTagData(t *testing.T) {
type myInt int
type s struct {
A string `cbor:"a"`
B string `cbor:"b"`
C string `cbor:"c"`
}
type tagInfo struct {
t reflect.Type
n []uint64
}
tagInfos := []tagInfo{
{reflect.TypeOf((*number)(nil)), []uint64{123}}, // BinaryMarshaler *number
{reflect.TypeOf(stru{}), []uint64{124}}, // BinaryMarshaler stru
{reflect.TypeOf(myInt(0)), []uint64{125}}, // non-struct type
{reflect.TypeOf(s{}), []uint64{126}}, // struct type
}
tagsDecRequired := NewTagSet()
tagsDecOptional := NewTagSet()
tagsDecIgnored := NewTagSet()
for _, tag := range tagInfos {
if err := tagsDecRequired.Add(TagOptions{EncTag: EncTagRequired, DecTag: DecTagRequired}, tag.t, tag.n[0], tag.n[1:]...); err != nil {
t.Fatalf("TagSet.Add(%s, %v) returned error %v", tag.t, tag.n, err)
}
if err := tagsDecOptional.Add(TagOptions{EncTag: EncTagRequired, DecTag: DecTagOptional}, tag.t, tag.n[0], tag.n[1:]...); err != nil {
t.Fatalf("TagSet.Add(%s, %v) returned error %v", tag.t, tag.n, err)
}
if err := tagsDecIgnored.Add(TagOptions{EncTag: EncTagRequired, DecTag: DecTagIgnored}, tag.t, tag.n[0], tag.n[1:]...); err != nil {
t.Fatalf("TagSet.Add(%s, %v) returned error %v", tag.t, tag.n, err)
}
}
type tag struct {
name string
tagSet TagSet
}
tags := []tag{
{"EncTagRequired_DecTagRequired", tagsDecRequired},
{"EncTagRequired_DecTagOptional", tagsDecOptional},
{"EncTagRequired_DecTagIgnored", tagsDecIgnored},
}
testCases := []roundTripTest{
{
name: "BinaryMarshaler non-struct",
obj: number(1234567890),
wantCborData: hexDecode("d87b4800000000499602d2"),
},
{
name: "BinaryMarshaler struct",
obj: stru{a: "a", b: "b", c: "c"},
wantCborData: hexDecode("d87c45612C622C63"),
},
{
name: "non-struct",
obj: myInt(1),
wantCborData: hexDecode("d87d01"),
},
{
name: "struct",
obj: s{A: "A", B: "B", C: "C"},
wantCborData: hexDecode("d87ea3616161416162614261636143"), // {"a":"A", "b":"B", "c":"C"}
},
}
for _, tag := range tags {
t.Run(tag.name, func(t *testing.T) {
em, _ := EncOptions{}.EncModeWithTags(tag.tagSet)
dm, _ := DecOptions{}.DecModeWithTags(tag.tagSet)
testRoundTrip(t, testCases, em, dm)
})
}
}
// TestDecodeNoTag decodes no-tag data with DecTagRequired/EncTagOptional/EncTagNone options
func TestDecodeNoTagData(t *testing.T) {
type myInt int
type s struct {
A string `cbor:"a"`
B string `cbor:"b"`
C string `cbor:"c"`
}
type tagInfo struct {
t reflect.Type
n []uint64
}
tagInfos := []tagInfo{
{reflect.TypeOf((*number)(nil)), []uint64{123}}, // BinaryMarshaler *number
{reflect.TypeOf(stru{}), []uint64{124}}, // BinaryMarshaler stru
{reflect.TypeOf(myInt(0)), []uint64{125}}, // non-struct type
{reflect.TypeOf(s{}), []uint64{126}}, // struct type
}
tagsDecRequired := NewTagSet()
tagsDecOptional := NewTagSet()
for _, tag := range tagInfos {
if err := tagsDecRequired.Add(TagOptions{EncTag: EncTagNone, DecTag: DecTagRequired}, tag.t, tag.n[0], tag.n[1:]...); err != nil {
t.Fatalf("TagSet.Add(%s, %v) returned error %v", tag.t, tag.n, err)
}
if err := tagsDecOptional.Add(TagOptions{EncTag: EncTagNone, DecTag: DecTagOptional}, tag.t, tag.n[0], tag.n[1:]...); err != nil {
t.Fatalf("TagSet.Add(%s, %v) returned error %v", tag.t, tag.n, err)
}
}
type tag struct {
name string
tagSet TagSet
}
tags := []tag{
{"EncTagIgnored_DecTagOptional", tagsDecOptional},
}
testCases := []roundTripTest{
{
name: "BinaryMarshaler non-struct",
obj: number(1234567890),
wantCborData: hexDecode("4800000000499602d2"),
},
{
name: "BinaryMarshaler struct",
obj: stru{a: "a", b: "b", c: "c"},
wantCborData: hexDecode("45612C622C63"),
},
{
name: "non-struct",
obj: myInt(1),
wantCborData: hexDecode("01"),
},
{
name: "struct",
obj: s{A: "A", B: "B", C: "C"},
wantCborData: hexDecode("a3616161416162614261636143"), // {"a":"A", "b":"B", "c":"C"}
},
}
for _, tag := range tags {
t.Run(tag.name, func(t *testing.T) {
em, _ := EncOptions{}.EncModeWithTags(tag.tagSet)
dm, _ := DecOptions{}.DecModeWithTags(tag.tagSet)
testRoundTrip(t, testCases, em, dm)
})
}
// Decode non-tag data with DecTagRequired option returns UnmarshalTypeError
for _, tc := range testCases {
name := "EncTagIgnored_DecTagRequired " + tc.name
t.Run(name, func(t *testing.T) {
dm, _ := DecOptions{}.DecModeWithTags(tagsDecRequired)
v := reflect.New(reflect.TypeOf(tc.obj))
if err := dm.Unmarshal(tc.wantCborData, v.Interface()); err == nil {
t.Errorf("Unmarshal(0x%x) didn't return an error", tc.wantCborData)
} else {
if _, ok := err.(*UnmarshalTypeError); !ok {
t.Errorf("Unmarshal(0x%x) returned wrong type of error %T, want (*UnmarshalTypeError)", tc.wantCborData, err)
} else if !strings.Contains(err.Error(), "expect CBOR tag value") {
t.Errorf("Unmarshal(0x%x) returned error %q, want error containing %q", tc.wantCborData, err.Error(), "expect CBOR tag value")
}
}
})
}
}
// TestDecodeWrongTag decodes wrong tag data with DecTagRequired/EncTagOptional/EncTagNone options
func TestDecodeWrongTag(t *testing.T) {
type myInt int
type s struct {
A string `cbor:"a"`
B string `cbor:"b"`
C string `cbor:"c"`
}
type tagInfo struct {
t reflect.Type
n []uint64
}
tagInfos := []tagInfo{
{reflect.TypeOf((*number)(nil)), []uint64{123}}, // BinaryMarshaler *number
{reflect.TypeOf(stru{}), []uint64{124}}, // BinaryMarshaler stru
{reflect.TypeOf(myInt(0)), []uint64{100}}, // non-struct type
{reflect.TypeOf(s{}), []uint64{101, 102}}, // struct type
}
tagsDecRequired := NewTagSet()
tagsDecOptional := NewTagSet()
tagsDecIgnored := NewTagSet()
for _, tag := range tagInfos {
if err := tagsDecRequired.Add(TagOptions{EncTag: EncTagRequired, DecTag: DecTagRequired}, tag.t, tag.n[0], tag.n[1:]...); err != nil {
t.Fatalf("TagSet.Add(%s, %v) returned error %v", tag.t, tag.n, err)
}
if err := tagsDecOptional.Add(TagOptions{EncTag: EncTagRequired, DecTag: DecTagOptional}, tag.t, tag.n[0], tag.n[1:]...); err != nil {
t.Fatalf("TagSet.Add(%s, %v) returned error %v", tag.t, tag.n, err)
}
if err := tagsDecIgnored.Add(TagOptions{EncTag: EncTagRequired, DecTag: DecTagIgnored}, tag.t, tag.n[0], tag.n[1:]...); err != nil {
t.Fatalf("TagSet.Add(%s, %v) returned error %v", tag.t, tag.n, err)
}
}
type tag struct {
name string
tagSet TagSet
}
tags := []tag{
{"EncTagRequired_DecTagRequired", tagsDecRequired},
{"EncTagRequired_DecTagOptional", tagsDecOptional},
}
testCases := []struct {
name string
obj interface{}
data []byte
wantErrorMsg string
}{
{
name: "BinaryMarshaler non-struct",
obj: number(1234567890),
data: hexDecode("d87d4800000000499602d2"),
wantErrorMsg: "cbor: wrong tag number for cbor.number, got [125], expected [123]",
},
{
name: "BinaryMarshaler struct",
obj: stru{a: "a", b: "b", c: "c"},
data: hexDecode("d87d45612C622C63"),
wantErrorMsg: "cbor: wrong tag number for cbor.stru, got [125], expected [124]",
},
{
name: "non-struct",
obj: myInt(1),
data: hexDecode("d87d01"),
wantErrorMsg: "cbor: wrong tag number for cbor.myInt, got [125], expected [100]",
},
{
name: "struct",
obj: s{A: "A", B: "B", C: "C"},
data: hexDecode("d87ea3616161416162614261636143"), // {"a":"A", "b":"B", "c":"C"}
wantErrorMsg: "cbor: wrong tag number for cbor.s, got [126], expected [101 102]",
},
}
for _, tc := range testCases {
for _, tag := range tags {
name := tag.name + " " + tc.name
t.Run(name, func(t *testing.T) {
dm, _ := DecOptions{}.DecModeWithTags(tag.tagSet)
v := reflect.New(reflect.TypeOf(tc.obj))
if err := dm.Unmarshal(tc.data, v.Interface()); err == nil {
t.Errorf("Unmarshal(0x%x) didn't return an error", tc.data)
} else {
if _, ok := err.(*WrongTagError); !ok {
t.Errorf("Unmarshal(0x%x) returned wrong type of error %T, want (*WrongTagError)", tc.data, err)
} else if err.Error() != tc.wantErrorMsg {
t.Errorf("Unmarshal(0x%x) returned error %q, want error %q", tc.data, err.Error(), tc.wantErrorMsg)
}
}
})
}
}
// Decode wrong tag data with DecTagIgnored option returns no error.
for _, tc := range testCases {
name := "EncTagRequired_DecTagIgnored " + tc.name
t.Run(name, func(t *testing.T) {
dm, _ := DecOptions{}.DecModeWithTags(tagsDecIgnored)
v := reflect.New(reflect.TypeOf(tc.obj))
if err := dm.Unmarshal(tc.data, v.Interface()); err != nil {
t.Errorf("Unmarshal() returned error %v", err)
}
if !reflect.DeepEqual(tc.obj, v.Elem().Interface()) {
t.Errorf("Marshal-Unmarshal returned different values: %v, %v", tc.obj, v.Elem().Interface())
}
})
}
}
func TestEncodeSharedTag(t *testing.T) {
type myInt int
myIntType := reflect.TypeOf(myInt(0))
sharedTagSet := NewTagSet()
em, err := EncOptions{}.EncModeWithSharedTags(sharedTagSet)
if err != nil {
t.Errorf("EncModeWithSharedTags() returned error %v", err)
}
// Register myInt type with tag number 123
if err = sharedTagSet.Add(TagOptions{EncTag: EncTagRequired, DecTag: DecTagRequired}, myIntType, 123); err != nil {
t.Fatalf("TagSet.Add(%s, %v) returned error %v", myIntType, 100, err)
}
// Encode myInt with tag number 123
v := myInt(1)
wantCborData := hexDecode("d87b01")
b, err := em.Marshal(v)
if err != nil {
t.Errorf("Marshal(%v) returned error %v", v, err)
}
if !bytes.Equal(b, wantCborData) {
t.Errorf("Marshal(%v) = 0x%x, want 0x%x", v, b, wantCborData)
}