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arshal_test.go
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arshal_test.go
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// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package json
import (
"bytes"
"encoding"
"encoding/base32"
"encoding/base64"
"encoding/hex"
"errors"
"fmt"
"io"
"math"
"net"
"net/netip"
"reflect"
"strconv"
"strings"
"testing"
"time"
"github.com/go-json-experiment/json/internal"
"github.com/go-json-experiment/json/internal/jsonflags"
"github.com/go-json-experiment/json/internal/jsonopts"
"github.com/go-json-experiment/json/internal/jsontest"
"github.com/go-json-experiment/json/internal/jsonwire"
"github.com/go-json-experiment/json/jsontext"
)
func newNonStringNameError(offset int64, pointer jsontext.Pointer) error {
return &jsontext.SyntacticError{ByteOffset: offset, JSONPointer: pointer, Err: jsontext.ErrNonStringName}
}
func newInvalidCharacterError(prefix, where string, offset int64, pointer jsontext.Pointer) error {
return &jsontext.SyntacticError{ByteOffset: offset, JSONPointer: pointer, Err: jsonwire.NewInvalidCharacterError(prefix, where)}
}
func newInvalidUTF8Error(offset int64, pointer jsontext.Pointer) error {
return &jsontext.SyntacticError{ByteOffset: offset, JSONPointer: pointer, Err: jsonwire.ErrInvalidUTF8}
}
func newParseTimeError(layout, value, layoutElem, valueElem, message string) error {
return &time.ParseError{Layout: layout, Value: value, LayoutElem: layoutElem, ValueElem: valueElem, Message: message}
}
func EM(err error) *SemanticError {
return &SemanticError{action: "marshal", Err: err}
}
func EU(err error) *SemanticError {
return &SemanticError{action: "unmarshal", Err: err}
}
func (e *SemanticError) withVal(val string) *SemanticError {
e.JSONValue = jsontext.Value(val)
return e
}
func (e *SemanticError) withPos(prefix string, pointer jsontext.Pointer) *SemanticError {
e.ByteOffset = int64(len(prefix))
e.JSONPointer = pointer
return e
}
func (e *SemanticError) withType(k jsontext.Kind, t reflect.Type) *SemanticError {
e.JSONKind = k
e.GoType = t
return e
}
var (
errInvalidFormatFlag = errors.New(`invalid format flag "invalid"`)
errSomeError = errors.New("some error")
errMustNotCall = errors.New("must not call")
)
func T[T any]() reflect.Type { return reflect.TypeFor[T]() }
type (
jsonObject = map[string]any
jsonArray = []any
namedAny any
namedBool bool
namedString string
NamedString string
namedBytes []byte
namedInt64 int64
namedUint64 uint64
namedFloat64 float64
namedByte byte
netipAddr = netip.Addr
recursiveMap map[string]recursiveMap
recursiveSlice []recursiveSlice
recursivePointer struct{ P *recursivePointer }
structEmpty struct{}
structConflicting struct {
A string `json:"conflict"`
B string `json:"conflict"`
}
structNoneExported struct {
unexported string
}
structUnexportedIgnored struct {
ignored string `json:"-"`
}
structMalformedTag struct {
Malformed string `json:"\""`
}
structUnexportedTag struct {
unexported string `json:"name"`
}
structExportedEmbedded struct {
NamedString
}
structExportedEmbeddedTag struct {
NamedString `json:"name"`
}
structUnexportedEmbedded struct {
namedString
}
structUnexportedEmbeddedTag struct {
namedString `json:"name"`
}
structUnexportedEmbeddedMethodTag struct {
// netipAddr cannot be marshaled since the MarshalText method
// cannot be called on an unexported field.
netipAddr `json:"name"`
// Bogus MarshalText and AppendText methods are declared on
// structUnexportedEmbeddedMethodTag to prevent it from
// implementing those method interfaces.
}
structUnexportedEmbeddedStruct struct {
structOmitZeroAll
FizzBuzz int
structNestedAddr
}
structUnexportedEmbeddedStructPointer struct {
*structOmitZeroAll
FizzBuzz int
*structNestedAddr
}
structNestedAddr struct {
Addr netip.Addr
}
structIgnoredUnexportedEmbedded struct {
namedString `json:"-"`
}
structWeirdNames struct {
Empty string `json:"''"`
Comma string `json:"','"`
Quote string `json:"'\"'"`
}
structNoCase struct {
Aaa string `json:",strictcase"`
AA_A string
AaA string `json:",nocase"`
AAa string `json:",nocase"`
AAA string
}
structScalars struct {
unexported bool
Ignored bool `json:"-"`
Bool bool
String string
Bytes []byte
Int int64
Uint uint64
Float float64
}
structSlices struct {
unexported bool
Ignored bool `json:"-"`
SliceBool []bool
SliceString []string
SliceBytes [][]byte
SliceInt []int64
SliceUint []uint64
SliceFloat []float64
}
structMaps struct {
unexported bool
Ignored bool `json:"-"`
MapBool map[string]bool
MapString map[string]string
MapBytes map[string][]byte
MapInt map[string]int64
MapUint map[string]uint64
MapFloat map[string]float64
}
structAll struct {
Bool bool
String string
Bytes []byte
Int int64
Uint uint64
Float float64
Map map[string]string
StructScalars structScalars
StructMaps structMaps
StructSlices structSlices
Slice []string
Array [1]string
Pointer *structAll
Interface any
}
structStringifiedAll struct {
Bool bool `json:",string"`
String string `json:",string"`
Bytes []byte `json:",string"`
Int int64 `json:",string"`
Uint uint64 `json:",string"`
Float float64 `json:",string"`
Map map[string]string `json:",string"`
StructScalars structScalars `json:",string"`
StructMaps structMaps `json:",string"`
StructSlices structSlices `json:",string"`
Slice []string `json:",string"`
Array [1]string `json:",string"`
Pointer *structStringifiedAll `json:",string"`
Interface any `json:",string"`
}
structOmitZeroAll struct {
Bool bool `json:",omitzero"`
String string `json:",omitzero"`
Bytes []byte `json:",omitzero"`
Int int64 `json:",omitzero"`
Uint uint64 `json:",omitzero"`
Float float64 `json:",omitzero"`
Map map[string]string `json:",omitzero"`
StructScalars structScalars `json:",omitzero"`
StructMaps structMaps `json:",omitzero"`
StructSlices structSlices `json:",omitzero"`
Slice []string `json:",omitzero"`
Array [1]string `json:",omitzero"`
Pointer *structOmitZeroAll `json:",omitzero"`
Interface any `json:",omitzero"`
}
structOmitZeroMethodAll struct {
ValueAlwaysZero valueAlwaysZero `json:",omitzero"`
ValueNeverZero valueNeverZero `json:",omitzero"`
PointerAlwaysZero pointerAlwaysZero `json:",omitzero"`
PointerNeverZero pointerNeverZero `json:",omitzero"`
PointerValueAlwaysZero *valueAlwaysZero `json:",omitzero"`
PointerValueNeverZero *valueNeverZero `json:",omitzero"`
PointerPointerAlwaysZero *pointerAlwaysZero `json:",omitzero"`
PointerPointerNeverZero *pointerNeverZero `json:",omitzero"`
PointerPointerValueAlwaysZero **valueAlwaysZero `json:",omitzero"`
PointerPointerValueNeverZero **valueNeverZero `json:",omitzero"`
PointerPointerPointerAlwaysZero **pointerAlwaysZero `json:",omitzero"`
PointerPointerPointerNeverZero **pointerNeverZero `json:",omitzero"`
}
structOmitZeroMethodInterfaceAll struct {
ValueAlwaysZero isZeroer `json:",omitzero"`
ValueNeverZero isZeroer `json:",omitzero"`
PointerValueAlwaysZero isZeroer `json:",omitzero"`
PointerValueNeverZero isZeroer `json:",omitzero"`
PointerPointerAlwaysZero isZeroer `json:",omitzero"`
PointerPointerNeverZero isZeroer `json:",omitzero"`
}
structOmitEmptyAll struct {
Bool bool `json:",omitempty"`
PointerBool *bool `json:",omitempty"`
String string `json:",omitempty"`
StringEmpty stringMarshalEmpty `json:",omitempty"`
StringNonEmpty stringMarshalNonEmpty `json:",omitempty"`
PointerString *string `json:",omitempty"`
PointerStringEmpty *stringMarshalEmpty `json:",omitempty"`
PointerStringNonEmpty *stringMarshalNonEmpty `json:",omitempty"`
Bytes []byte `json:",omitempty"`
BytesEmpty bytesMarshalEmpty `json:",omitempty"`
BytesNonEmpty bytesMarshalNonEmpty `json:",omitempty"`
PointerBytes *[]byte `json:",omitempty"`
PointerBytesEmpty *bytesMarshalEmpty `json:",omitempty"`
PointerBytesNonEmpty *bytesMarshalNonEmpty `json:",omitempty"`
Float float64 `json:",omitempty"`
PointerFloat *float64 `json:",omitempty"`
Map map[string]string `json:",omitempty"`
MapEmpty mapMarshalEmpty `json:",omitempty"`
MapNonEmpty mapMarshalNonEmpty `json:",omitempty"`
PointerMap *map[string]string `json:",omitempty"`
PointerMapEmpty *mapMarshalEmpty `json:",omitempty"`
PointerMapNonEmpty *mapMarshalNonEmpty `json:",omitempty"`
Slice []string `json:",omitempty"`
SliceEmpty sliceMarshalEmpty `json:",omitempty"`
SliceNonEmpty sliceMarshalNonEmpty `json:",omitempty"`
PointerSlice *[]string `json:",omitempty"`
PointerSliceEmpty *sliceMarshalEmpty `json:",omitempty"`
PointerSliceNonEmpty *sliceMarshalNonEmpty `json:",omitempty"`
Pointer *structOmitZeroEmptyAll `json:",omitempty"`
Interface any `json:",omitempty"`
}
structOmitZeroEmptyAll struct {
Bool bool `json:",omitzero,omitempty"`
String string `json:",omitzero,omitempty"`
Bytes []byte `json:",omitzero,omitempty"`
Int int64 `json:",omitzero,omitempty"`
Uint uint64 `json:",omitzero,omitempty"`
Float float64 `json:",omitzero,omitempty"`
Map map[string]string `json:",omitzero,omitempty"`
Slice []string `json:",omitzero,omitempty"`
Array [1]string `json:",omitzero,omitempty"`
Pointer *structOmitZeroEmptyAll `json:",omitzero,omitempty"`
Interface any `json:",omitzero,omitempty"`
}
structFormatBytes struct {
Base16 []byte `json:",format:base16"`
Base32 []byte `json:",format:base32"`
Base32Hex []byte `json:",format:base32hex"`
Base64 []byte `json:",format:base64"`
Base64URL []byte `json:",format:base64url"`
Array []byte `json:",format:array"`
}
structFormatArrayBytes struct {
Base16 [4]byte `json:",format:base16"`
Base32 [4]byte `json:",format:base32"`
Base32Hex [4]byte `json:",format:base32hex"`
Base64 [4]byte `json:",format:base64"`
Base64URL [4]byte `json:",format:base64url"`
Array [4]byte `json:",format:array"`
Default [4]byte
}
structFormatFloats struct {
NonFinite float64 `json:",format:nonfinite"`
PointerNonFinite *float64 `json:",format:nonfinite"`
}
structFormatMaps struct {
EmitNull map[string]string `json:",format:emitnull"`
PointerEmitNull *map[string]string `json:",format:emitnull"`
EmitEmpty map[string]string `json:",format:emitempty"`
PointerEmitEmpty *map[string]string `json:",format:emitempty"`
EmitDefault map[string]string
PointerEmitDefault *map[string]string
}
structFormatSlices struct {
EmitNull []string `json:",format:emitnull"`
PointerEmitNull *[]string `json:",format:emitnull"`
EmitEmpty []string `json:",format:emitempty"`
PointerEmitEmpty *[]string `json:",format:emitempty"`
EmitDefault []string
PointerEmitDefault *[]string
}
structFormatInvalid struct {
Bool bool `json:",omitzero,format:invalid"`
String string `json:",omitzero,format:invalid"`
Bytes []byte `json:",omitzero,format:invalid"`
Int int64 `json:",omitzero,format:invalid"`
Uint uint64 `json:",omitzero,format:invalid"`
Float float64 `json:",omitzero,format:invalid"`
Map map[string]string `json:",omitzero,format:invalid"`
Struct structAll `json:",omitzero,format:invalid"`
Slice []string `json:",omitzero,format:invalid"`
Array [1]string `json:",omitzero,format:invalid"`
Interface any `json:",omitzero,format:invalid"`
}
structDurationFormat struct {
D1 time.Duration
D2 time.Duration `json:",format:units"`
D3 time.Duration `json:",format:sec"`
D4 time.Duration `json:",string,format:sec"`
D5 time.Duration `json:",format:milli"`
D6 time.Duration `json:",string,format:milli"`
D7 time.Duration `json:",format:micro"`
D8 time.Duration `json:",string,format:micro"`
D9 time.Duration `json:",format:nano"`
D10 time.Duration `json:",string,format:nano"`
D11 time.Duration `json:",format:base60"`
}
structTimeFormat struct {
T1 time.Time
T2 time.Time `json:",format:ANSIC"`
T3 time.Time `json:",format:UnixDate"`
T4 time.Time `json:",format:RubyDate"`
T5 time.Time `json:",format:RFC822"`
T6 time.Time `json:",format:RFC822Z"`
T7 time.Time `json:",format:RFC850"`
T8 time.Time `json:",format:RFC1123"`
T9 time.Time `json:",format:RFC1123Z"`
T10 time.Time `json:",format:RFC3339"`
T11 time.Time `json:",format:RFC3339Nano"`
T12 time.Time `json:",format:Kitchen"`
T13 time.Time `json:",format:Stamp"`
T14 time.Time `json:",format:StampMilli"`
T15 time.Time `json:",format:StampMicro"`
T16 time.Time `json:",format:StampNano"`
T17 time.Time `json:",format:DateTime"`
T18 time.Time `json:",format:DateOnly"`
T19 time.Time `json:",format:TimeOnly"`
T20 time.Time `json:",format:'2006-01-02'"`
T21 time.Time `json:",format:'\"weird\"2006'"`
T22 time.Time `json:",format:unix"`
T23 time.Time `json:",string,format:unix"`
T24 time.Time `json:",format:unixmilli"`
T25 time.Time `json:",string,format:unixmilli"`
T26 time.Time `json:",format:unixmicro"`
T27 time.Time `json:",string,format:unixmicro"`
T28 time.Time `json:",format:unixnano"`
T29 time.Time `json:",string,format:unixnano"`
}
structInlined struct {
X structInlinedL1 `json:",inline"`
*StructEmbed2 // implicit inline
}
structInlinedL1 struct {
X *structInlinedL2 `json:",inline"`
StructEmbed1 `json:",inline"`
}
structInlinedL2 struct{ A, B, C string }
StructEmbed1 struct{ C, D, E string }
StructEmbed2 struct{ E, F, G string }
structUnknownTextValue struct {
A int `json:",omitzero"`
X jsontext.Value `json:",unknown"`
B int `json:",omitzero"`
}
structInlineTextValue struct {
A int `json:",omitzero"`
X jsontext.Value `json:",inline"`
B int `json:",omitzero"`
}
structInlinePointerTextValue struct {
A int `json:",omitzero"`
X *jsontext.Value `json:",inline"`
B int `json:",omitzero"`
}
structInlinePointerInlineTextValue struct {
X *struct {
A int
X jsontext.Value `json:",inline"`
} `json:",inline"`
}
structInlineInlinePointerTextValue struct {
X struct {
X *jsontext.Value `json:",inline"`
} `json:",inline"`
}
structInlineMapStringAny struct {
A int `json:",omitzero"`
X jsonObject `json:",inline"`
B int `json:",omitzero"`
}
structInlinePointerMapStringAny struct {
A int `json:",omitzero"`
X *jsonObject `json:",inline"`
B int `json:",omitzero"`
}
structInlinePointerInlineMapStringAny struct {
X *struct {
A int
X jsonObject `json:",inline"`
} `json:",inline"`
}
structInlineInlinePointerMapStringAny struct {
X struct {
X *jsonObject `json:",inline"`
} `json:",inline"`
}
structInlineMapStringInt struct {
X map[string]int `json:",inline"`
}
structInlineMapNamedStringInt struct {
X map[namedString]int `json:",inline"`
}
structInlineMapNamedStringAny struct {
A int `json:",omitzero"`
X map[namedString]any `json:",inline"`
B int `json:",omitzero"`
}
structNoCaseInlineTextValue struct {
AAA string `json:",omitempty,strictcase"`
AA_b string `json:",omitempty"`
AaA string `json:",omitempty,nocase"`
AAa string `json:",omitempty,nocase"`
Aaa string `json:",omitempty"`
X jsontext.Value `json:",inline"`
}
structNoCaseInlineMapStringAny struct {
AAA string `json:",omitempty"`
AaA string `json:",omitempty,nocase"`
AAa string `json:",omitempty,nocase"`
Aaa string `json:",omitempty"`
X jsonObject `json:",inline"`
}
allMethods struct {
method string // the method that was called
value []byte // the raw value to provide or store
}
allMethodsExceptJSONv2 struct {
allMethods
MarshalJSONV2 struct{} // cancel out MarshalJSONV2 method with collision
UnmarshalJSONV2 struct{} // cancel out UnmarshalJSONV2 method with collision
}
allMethodsExceptJSONv1 struct {
allMethods
MarshalJSON struct{} // cancel out MarshalJSON method with collision
UnmarshalJSON struct{} // cancel out UnmarshalJSON method with collision
}
allMethodsExceptText struct {
allMethods
MarshalText struct{} // cancel out MarshalText method with collision
UnmarshalText struct{} // cancel out UnmarshalText method with collision
}
onlyMethodJSONv2 struct {
allMethods
MarshalJSON struct{} // cancel out MarshalJSON method with collision
UnmarshalJSON struct{} // cancel out UnmarshalJSON method with collision
MarshalText struct{} // cancel out MarshalText method with collision
UnmarshalText struct{} // cancel out UnmarshalText method with collision
}
onlyMethodJSONv1 struct {
allMethods
MarshalJSONV2 struct{} // cancel out MarshalJSONV2 method with collision
UnmarshalJSONV2 struct{} // cancel out UnmarshalJSONV2 method with collision
MarshalText struct{} // cancel out MarshalText method with collision
UnmarshalText struct{} // cancel out UnmarshalText method with collision
}
onlyMethodText struct {
allMethods
MarshalJSONV2 struct{} // cancel out MarshalJSONV2 method with collision
UnmarshalJSONV2 struct{} // cancel out UnmarshalJSONV2 method with collision
MarshalJSON struct{} // cancel out MarshalJSON method with collision
UnmarshalJSON struct{} // cancel out UnmarshalJSON method with collision
}
structMethodJSONv2 struct{ value string }
structMethodJSONv1 struct{ value string }
structMethodText struct{ value string }
marshalJSONv2Func func(*jsontext.Encoder, Options) error
marshalJSONv1Func func() ([]byte, error)
appendTextFunc func([]byte) ([]byte, error)
marshalTextFunc func() ([]byte, error)
unmarshalJSONv2Func func(*jsontext.Decoder, Options) error
unmarshalJSONv1Func func([]byte) error
unmarshalTextFunc func([]byte) error
nocaseString string
stringMarshalEmpty string
stringMarshalNonEmpty string
bytesMarshalEmpty []byte
bytesMarshalNonEmpty []byte
mapMarshalEmpty map[string]string
mapMarshalNonEmpty map[string]string
sliceMarshalEmpty []string
sliceMarshalNonEmpty []string
valueAlwaysZero string
valueNeverZero string
pointerAlwaysZero string
pointerNeverZero string
valueStringer struct{}
pointerStringer struct{}
cyclicA struct {
B1 cyclicB `json:",inline"`
B2 cyclicB `json:",inline"`
}
cyclicB struct {
F int
A *cyclicA `json:",inline"`
}
)
func (structUnexportedEmbeddedMethodTag) MarshalText() {}
func (structUnexportedEmbeddedMethodTag) AppendText() {}
func (p *allMethods) MarshalJSONV2(enc *jsontext.Encoder, opts Options) error {
if got, want := "MarshalJSONV2", p.method; got != want {
return fmt.Errorf("called wrong method: got %v, want %v", got, want)
}
return enc.WriteValue(p.value)
}
func (p *allMethods) MarshalJSON() ([]byte, error) {
if got, want := "MarshalJSON", p.method; got != want {
return nil, fmt.Errorf("called wrong method: got %v, want %v", got, want)
}
return p.value, nil
}
func (p *allMethods) MarshalText() ([]byte, error) {
if got, want := "MarshalText", p.method; got != want {
return nil, fmt.Errorf("called wrong method: got %v, want %v", got, want)
}
return p.value, nil
}
func (p *allMethods) UnmarshalJSONV2(dec *jsontext.Decoder, opts Options) error {
p.method = "UnmarshalJSONV2"
val, err := dec.ReadValue()
p.value = val
return err
}
func (p *allMethods) UnmarshalJSON(val []byte) error {
p.method = "UnmarshalJSON"
p.value = val
return nil
}
func (p *allMethods) UnmarshalText(val []byte) error {
p.method = "UnmarshalText"
p.value = val
return nil
}
func (s structMethodJSONv2) MarshalJSONV2(enc *jsontext.Encoder, opts Options) error {
return enc.WriteToken(jsontext.String(s.value))
}
func (s *structMethodJSONv2) UnmarshalJSONV2(dec *jsontext.Decoder, opts Options) error {
tok, err := dec.ReadToken()
if err != nil {
return err
}
if k := tok.Kind(); k != '"' {
return EU(nil).withType(k, T[structMethodJSONv2]())
}
s.value = tok.String()
return nil
}
func (s structMethodJSONv1) MarshalJSON() ([]byte, error) {
return jsontext.AppendQuote(nil, s.value)
}
func (s *structMethodJSONv1) UnmarshalJSON(b []byte) error {
if k := jsontext.Value(b).Kind(); k != '"' {
return EU(nil).withType(k, T[structMethodJSONv1]())
}
b, _ = jsontext.AppendUnquote(nil, b)
s.value = string(b)
return nil
}
func (s structMethodText) MarshalText() ([]byte, error) {
return []byte(s.value), nil
}
func (s *structMethodText) UnmarshalText(b []byte) error {
s.value = string(b)
return nil
}
func (f marshalJSONv2Func) MarshalJSONV2(enc *jsontext.Encoder, opts Options) error {
return f(enc, opts)
}
func (f marshalJSONv1Func) MarshalJSON() ([]byte, error) {
return f()
}
func (f appendTextFunc) AppendText(b []byte) ([]byte, error) {
return f(b)
}
func (f marshalTextFunc) MarshalText() ([]byte, error) {
return f()
}
func (f unmarshalJSONv2Func) UnmarshalJSONV2(dec *jsontext.Decoder, opts Options) error {
return f(dec, opts)
}
func (f unmarshalJSONv1Func) UnmarshalJSON(b []byte) error {
return f(b)
}
func (f unmarshalTextFunc) UnmarshalText(b []byte) error {
return f(b)
}
func (k nocaseString) MarshalText() ([]byte, error) {
return []byte(strings.ToLower(string(k))), nil
}
func (k *nocaseString) UnmarshalText(b []byte) error {
*k = nocaseString(strings.ToLower(string(b)))
return nil
}
func (stringMarshalEmpty) MarshalJSON() ([]byte, error) { return []byte(`""`), nil }
func (stringMarshalNonEmpty) MarshalJSON() ([]byte, error) { return []byte(`"value"`), nil }
func (bytesMarshalEmpty) MarshalJSON() ([]byte, error) { return []byte(`[]`), nil }
func (bytesMarshalNonEmpty) MarshalJSON() ([]byte, error) { return []byte(`["value"]`), nil }
func (mapMarshalEmpty) MarshalJSON() ([]byte, error) { return []byte(`{}`), nil }
func (mapMarshalNonEmpty) MarshalJSON() ([]byte, error) { return []byte(`{"key":"value"}`), nil }
func (sliceMarshalEmpty) MarshalJSON() ([]byte, error) { return []byte(`[]`), nil }
func (sliceMarshalNonEmpty) MarshalJSON() ([]byte, error) { return []byte(`["value"]`), nil }
func (valueAlwaysZero) IsZero() bool { return true }
func (valueNeverZero) IsZero() bool { return false }
func (*pointerAlwaysZero) IsZero() bool { return true }
func (*pointerNeverZero) IsZero() bool { return false }
func (valueStringer) String() string { return "" }
func (*pointerStringer) String() string { return "" }
func addr[T any](v T) *T {
return &v
}
func mustParseTime(layout, value string) time.Time {
t, err := time.Parse(layout, value)
if err != nil {
panic(err)
}
return t
}
var invalidFormatOption = &jsonopts.Struct{
ArshalValues: jsonopts.ArshalValues{FormatDepth: 1000, Format: "invalid"},
}
func TestMarshal(t *testing.T) {
tests := []struct {
name jsontest.CaseName
opts []Options
in any
want string
wantErr error
canonicalize bool // canonicalize the output before comparing?
useWriter bool // call MarshalWrite instead of Marshal
}{{
name: jsontest.Name("Nil"),
in: nil,
want: `null`,
}, {
name: jsontest.Name("Bools"),
in: []bool{false, true},
want: `[false,true]`,
}, {
name: jsontest.Name("Bools/Named"),
in: []namedBool{false, true},
want: `[false,true]`,
}, {
name: jsontest.Name("Bools/NotStringified"),
opts: []Options{StringifyNumbers(true)},
in: []bool{false, true},
want: `[false,true]`,
}, {
name: jsontest.Name("Bools/StringifiedBool"),
opts: []Options{jsonflags.StringifyBoolsAndStrings | 1},
in: []bool{false, true},
want: `["false","true"]`,
}, {
name: jsontest.Name("Bools/IgnoreInvalidFormat"),
opts: []Options{invalidFormatOption},
in: true,
want: `true`,
}, {
name: jsontest.Name("Strings"),
in: []string{"", "hello", "世界"},
want: `["","hello","世界"]`,
}, {
name: jsontest.Name("Strings/Named"),
in: []namedString{"", "hello", "世界"},
want: `["","hello","世界"]`,
}, {
name: jsontest.Name("Strings/StringifiedBool"),
opts: []Options{jsonflags.StringifyBoolsAndStrings | 1},
in: []string{"", "hello", "世界"},
want: `["\"\"","\"hello\"","\"世界\""]`,
}, {
name: jsontest.Name("Strings/IgnoreInvalidFormat"),
opts: []Options{invalidFormatOption},
in: "string",
want: `"string"`,
}, {
name: jsontest.Name("Bytes"),
in: [][]byte{nil, {}, {1}, {1, 2}, {1, 2, 3}},
want: `["","","AQ==","AQI=","AQID"]`,
}, {
name: jsontest.Name("Bytes/FormatNilSliceAsNull"),
opts: []Options{FormatNilSliceAsNull(true)},
in: [][]byte{nil, {}},
want: `[null,""]`,
}, {
name: jsontest.Name("Bytes/Large"),
in: []byte("the quick brown fox jumped over the lazy dog and ate the homework that I spent so much time on."),
want: `"dGhlIHF1aWNrIGJyb3duIGZveCBqdW1wZWQgb3ZlciB0aGUgbGF6eSBkb2cgYW5kIGF0ZSB0aGUgaG9tZXdvcmsgdGhhdCBJIHNwZW50IHNvIG11Y2ggdGltZSBvbi4="`,
}, {
name: jsontest.Name("Bytes/Named"),
in: []namedBytes{nil, {}, {1}, {1, 2}, {1, 2, 3}},
want: `["","","AQ==","AQI=","AQID"]`,
}, {
name: jsontest.Name("Bytes/NotStringified"),
opts: []Options{StringifyNumbers(true)},
in: [][]byte{nil, {}, {1}, {1, 2}, {1, 2, 3}},
want: `["","","AQ==","AQI=","AQID"]`,
}, {
// NOTE: []namedByte is not assignable to []byte,
// so the following should be treated as a slice of uints.
name: jsontest.Name("Bytes/Invariant"),
in: [][]namedByte{nil, {}, {1}, {1, 2}, {1, 2, 3}},
want: `[[],[],[1],[1,2],[1,2,3]]`,
}, {
// NOTE: This differs in behavior from v1,
// but keeps the representation of slices and arrays more consistent.
name: jsontest.Name("Bytes/ByteArray"),
in: [5]byte{'h', 'e', 'l', 'l', 'o'},
want: `"aGVsbG8="`,
}, {
// NOTE: []namedByte is not assignable to []byte,
// so the following should be treated as an array of uints.
name: jsontest.Name("Bytes/NamedByteArray"),
in: [5]namedByte{'h', 'e', 'l', 'l', 'o'},
want: `[104,101,108,108,111]`,
}, {
name: jsontest.Name("Bytes/IgnoreInvalidFormat"),
opts: []Options{invalidFormatOption},
in: []byte("hello"),
want: `"aGVsbG8="`,
}, {
name: jsontest.Name("Ints"),
in: []any{
int(0), int8(math.MinInt8), int16(math.MinInt16), int32(math.MinInt32), int64(math.MinInt64), namedInt64(-6464),
},
want: `[0,-128,-32768,-2147483648,-9223372036854775808,-6464]`,
}, {
name: jsontest.Name("Ints/Stringified"),
opts: []Options{StringifyNumbers(true)},
in: []any{
int(0), int8(math.MinInt8), int16(math.MinInt16), int32(math.MinInt32), int64(math.MinInt64), namedInt64(-6464),
},
want: `["0","-128","-32768","-2147483648","-9223372036854775808","-6464"]`,
}, {
name: jsontest.Name("Ints/IgnoreInvalidFormat"),
opts: []Options{invalidFormatOption},
in: int(0),
want: `0`,
}, {
name: jsontest.Name("Uints"),
in: []any{
uint(0), uint8(math.MaxUint8), uint16(math.MaxUint16), uint32(math.MaxUint32), uint64(math.MaxUint64), namedUint64(6464), uintptr(1234),
},
want: `[0,255,65535,4294967295,18446744073709551615,6464,1234]`,
}, {
name: jsontest.Name("Uints/Stringified"),
opts: []Options{StringifyNumbers(true)},
in: []any{
uint(0), uint8(math.MaxUint8), uint16(math.MaxUint16), uint32(math.MaxUint32), uint64(math.MaxUint64), namedUint64(6464),
},
want: `["0","255","65535","4294967295","18446744073709551615","6464"]`,
}, {
name: jsontest.Name("Uints/IgnoreInvalidFormat"),
opts: []Options{invalidFormatOption},
in: uint(0),
want: `0`,
}, {
name: jsontest.Name("Floats"),
in: []any{
float32(math.MaxFloat32), float64(math.MaxFloat64), namedFloat64(64.64),
},
want: `[3.4028235e+38,1.7976931348623157e+308,64.64]`,
}, {
name: jsontest.Name("Floats/Stringified"),
opts: []Options{StringifyNumbers(true)},
in: []any{
float32(math.MaxFloat32), float64(math.MaxFloat64), namedFloat64(64.64),
},
want: `["3.4028235e+38","1.7976931348623157e+308","64.64"]`,
}, {
name: jsontest.Name("Floats/Invalid/NaN"),
opts: []Options{StringifyNumbers(true)},
in: math.NaN(),
wantErr: EM(fmt.Errorf("unsupported value: %v", math.NaN())).withType(0, float64Type),
}, {
name: jsontest.Name("Floats/Invalid/PositiveInfinity"),
in: math.Inf(+1),
wantErr: EM(fmt.Errorf("unsupported value: %v", math.Inf(+1))).withType(0, float64Type),
}, {
name: jsontest.Name("Floats/Invalid/NegativeInfinity"),
in: math.Inf(-1),
wantErr: EM(fmt.Errorf("unsupported value: %v", math.Inf(-1))).withType(0, float64Type),
}, {
name: jsontest.Name("Floats/IgnoreInvalidFormat"),
opts: []Options{invalidFormatOption},
in: float64(0),
want: `0`,
}, {
name: jsontest.Name("Maps/InvalidKey/Bool"),
in: map[bool]string{false: "value"},
want: `{`,
wantErr: EM(newNonStringNameError(len64(`{`), "")).withPos(`{`, "").withType(0, boolType),
}, {
name: jsontest.Name("Maps/InvalidKey/NamedBool"),
in: map[namedBool]string{false: "value"},
want: `{`,
wantErr: EM(newNonStringNameError(len64(`{`), "")).withPos(`{`, "").withType(0, T[namedBool]()),
}, {
name: jsontest.Name("Maps/InvalidKey/Array"),
in: map[[1]string]string{{"key"}: "value"},
want: `{`,
wantErr: EM(newNonStringNameError(len64(`{`), "")).withPos(`{`, "").withType(0, T[[1]string]()),
}, {
name: jsontest.Name("Maps/InvalidKey/Channel"),
in: map[chan string]string{make(chan string): "value"},
want: `{`,
wantErr: EM(nil).withPos(`{`, "").withType(0, T[chan string]()),
}, {
name: jsontest.Name("Maps/ValidKey/Int"),
in: map[int64]string{math.MinInt64: "MinInt64", 0: "Zero", math.MaxInt64: "MaxInt64"},
canonicalize: true,
want: `{"-9223372036854775808":"MinInt64","0":"Zero","9223372036854775807":"MaxInt64"}`,
}, {
name: jsontest.Name("Maps/ValidKey/PointerInt"),
in: map[*int64]string{addr(int64(math.MinInt64)): "MinInt64", addr(int64(0)): "Zero", addr(int64(math.MaxInt64)): "MaxInt64"},
canonicalize: true,
want: `{"-9223372036854775808":"MinInt64","0":"Zero","9223372036854775807":"MaxInt64"}`,
}, {
name: jsontest.Name("Maps/DuplicateName/PointerInt"),
in: map[*int64]string{addr(int64(0)): "0", addr(int64(0)): "0"},
canonicalize: true,
want: `{"0":"0"`,
wantErr: newDuplicateNameError("", []byte(`"0"`), len64(`{"0":"0",`)),
}, {
name: jsontest.Name("Maps/ValidKey/NamedInt"),
in: map[namedInt64]string{math.MinInt64: "MinInt64", 0: "Zero", math.MaxInt64: "MaxInt64"},
canonicalize: true,
want: `{"-9223372036854775808":"MinInt64","0":"Zero","9223372036854775807":"MaxInt64"}`,
}, {
name: jsontest.Name("Maps/ValidKey/Uint"),
in: map[uint64]string{0: "Zero", math.MaxUint64: "MaxUint64"},
canonicalize: true,
want: `{"0":"Zero","18446744073709551615":"MaxUint64"}`,
}, {
name: jsontest.Name("Maps/ValidKey/NamedUint"),
in: map[namedUint64]string{0: "Zero", math.MaxUint64: "MaxUint64"},
canonicalize: true,
want: `{"0":"Zero","18446744073709551615":"MaxUint64"}`,
}, {
name: jsontest.Name("Maps/ValidKey/Float"),
in: map[float64]string{3.14159: "value"},
want: `{"3.14159":"value"}`,
}, {
name: jsontest.Name("Maps/InvalidKey/Float/NaN"),
in: map[float64]string{math.NaN(): "NaN", math.NaN(): "NaN"},
want: `{`,
wantErr: EM(errors.New("unsupported value: NaN")).withPos(`{`, "").withType(0, float64Type),
}, {
name: jsontest.Name("Maps/ValidKey/Interface"),
in: map[any]any{
"key": "key",
namedInt64(-64): int32(-32),
namedUint64(+64): uint32(+32),
namedFloat64(64.64): float32(32.32),
},
canonicalize: true,
want: `{"-64":-32,"64":32,"64.64":32.32,"key":"key"}`,
}, {
name: jsontest.Name("Maps/DuplicateName/String/AllowInvalidUTF8+AllowDuplicateNames"),
opts: []Options{jsontext.AllowInvalidUTF8(true), jsontext.AllowDuplicateNames(true)},
in: map[string]string{"\x80": "", "\x81": ""},
want: `{"�":"","�":""}`,
}, {
name: jsontest.Name("Maps/DuplicateName/String/AllowInvalidUTF8"),
opts: []Options{jsontext.AllowInvalidUTF8(true)},
in: map[string]string{"\x80": "", "\x81": ""},
want: `{"�":""`,
wantErr: newDuplicateNameError("", []byte(`"�"`), len64(`{"�":"",`)),
}, {
name: jsontest.Name("Maps/DuplicateName/NoCaseString/AllowDuplicateNames"),
opts: []Options{jsontext.AllowDuplicateNames(true)},
in: map[nocaseString]string{"hello": "", "HELLO": ""},
want: `{"hello":"","hello":""}`,
}, {
name: jsontest.Name("Maps/DuplicateName/NoCaseString"),
in: map[nocaseString]string{"hello": "", "HELLO": ""},
want: `{"hello":""`,
wantErr: EM(newDuplicateNameError("", []byte(`"hello"`), len64(`{"hello":"",`))).withPos(`{"hello":"",`, "").withType(0, T[nocaseString]()),
}, {
name: jsontest.Name("Maps/DuplicateName/NaNs/Deterministic+AllowDuplicateNames"),
opts: []Options{
WithMarshalers(
MarshalFuncV1(func(v float64) ([]byte, error) { return []byte(`"NaN"`), nil }),
),
Deterministic(true),
jsontext.AllowDuplicateNames(true),
},
in: map[float64]string{math.NaN(): "NaN", math.NaN(): "NaN"},
want: `{"NaN":"NaN","NaN":"NaN"}`,
}, {
name: jsontest.Name("Maps/InvalidValue/Channel"),
in: map[string]chan string{
"key": nil,
},
want: `{"key"`,
wantErr: EM(nil).withPos(`{"key":`, "/key").withType(0, T[chan string]()),
}, {
name: jsontest.Name("Maps/String/Deterministic"),
opts: []Options{Deterministic(true)},
in: map[string]int{"a": 0, "b": 1, "c": 2},
want: `{"a":0,"b":1,"c":2}`,
}, {
name: jsontest.Name("Maps/String/Deterministic+AllowInvalidUTF8+RejectDuplicateNames"),
opts: []Options{
Deterministic(true),
jsontext.AllowInvalidUTF8(true),
jsontext.AllowDuplicateNames(false),
},