2575 lines
62 KiB
Go
2575 lines
62 KiB
Go
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// Copyright 2010 The Go Authors. 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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package json
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import (
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"bytes"
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"encoding"
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"errors"
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"fmt"
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"image"
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"math"
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"math/big"
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"net"
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"reflect"
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"strconv"
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"strings"
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"testing"
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"time"
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)
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type T struct {
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X string
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Y int
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Z int `json:"-"`
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}
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type U struct {
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Alphabet string `json:"alpha"`
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}
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type V struct {
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F1 any
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F2 int32
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F3 Number
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F4 *VOuter
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}
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type VOuter struct {
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V V
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}
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type W struct {
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S SS
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}
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type P struct {
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PP PP
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}
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type PP struct {
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T T
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Ts []T
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}
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type SS string
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func (*SS) UnmarshalJSON(data []byte) error {
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return &UnmarshalTypeError{Value: "number", Type: reflect.TypeOf(SS(""))}
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}
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// ifaceNumAsFloat64/ifaceNumAsNumber are used to test unmarshaling with and
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// without UseNumber
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var ifaceNumAsFloat64 = map[string]any{
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"k1": float64(1),
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"k2": "s",
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"k3": []any{float64(1), float64(2.0), float64(3e-3)},
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"k4": map[string]any{"kk1": "s", "kk2": float64(2)},
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}
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var ifaceNumAsNumber = map[string]any{
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"k1": Number("1"),
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"k2": "s",
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"k3": []any{Number("1"), Number("2.0"), Number("3e-3")},
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"k4": map[string]any{"kk1": "s", "kk2": Number("2")},
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}
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type tx struct {
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x int
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}
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type u8 uint8
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// A type that can unmarshal itself.
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type unmarshaler struct {
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T bool
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}
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func (u *unmarshaler) UnmarshalJSON(b []byte) error {
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*u = unmarshaler{true} // All we need to see that UnmarshalJSON is called.
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return nil
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}
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type ustruct struct {
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M unmarshaler
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}
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type unmarshalerText struct {
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A, B string
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}
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// needed for re-marshaling tests
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func (u unmarshalerText) MarshalText() ([]byte, error) {
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return []byte(u.A + ":" + u.B), nil
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}
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func (u *unmarshalerText) UnmarshalText(b []byte) error {
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pos := bytes.IndexByte(b, ':')
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if pos == -1 {
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return errors.New("missing separator")
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}
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u.A, u.B = string(b[:pos]), string(b[pos+1:])
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return nil
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}
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var _ encoding.TextUnmarshaler = (*unmarshalerText)(nil)
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type ustructText struct {
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M unmarshalerText
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}
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// u8marshal is an integer type that can marshal/unmarshal itself.
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type u8marshal uint8
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func (u8 u8marshal) MarshalText() ([]byte, error) {
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return []byte(fmt.Sprintf("u%d", u8)), nil
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}
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var errMissingU8Prefix = errors.New("missing 'u' prefix")
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func (u8 *u8marshal) UnmarshalText(b []byte) error {
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if !bytes.HasPrefix(b, []byte{'u'}) {
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return errMissingU8Prefix
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}
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n, err := strconv.Atoi(string(b[1:]))
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if err != nil {
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return err
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}
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*u8 = u8marshal(n)
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return nil
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}
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var _ encoding.TextUnmarshaler = (*u8marshal)(nil)
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var (
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umtrue = unmarshaler{true}
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umslice = []unmarshaler{{true}}
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umstruct = ustruct{unmarshaler{true}}
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umtrueXY = unmarshalerText{"x", "y"}
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umsliceXY = []unmarshalerText{{"x", "y"}}
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umstructXY = ustructText{unmarshalerText{"x", "y"}}
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ummapXY = map[unmarshalerText]bool{{"x", "y"}: true}
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)
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// Test data structures for anonymous fields.
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type Point struct {
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Z int
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}
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type Top struct {
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Level0 int
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Embed0
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*Embed0a
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*Embed0b `json:"e,omitempty"` // treated as named
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Embed0c `json:"-"` // ignored
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Loop
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Embed0p // has Point with X, Y, used
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Embed0q // has Point with Z, used
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embed // contains exported field
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}
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type Embed0 struct {
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Level1a int // overridden by Embed0a's Level1a with json tag
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Level1b int // used because Embed0a's Level1b is renamed
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Level1c int // used because Embed0a's Level1c is ignored
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Level1d int // annihilated by Embed0a's Level1d
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Level1e int `json:"x"` // annihilated by Embed0a.Level1e
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}
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type Embed0a struct {
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Level1a int `json:"Level1a,omitempty"`
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Level1b int `json:"LEVEL1B,omitempty"`
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Level1c int `json:"-"`
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Level1d int // annihilated by Embed0's Level1d
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Level1f int `json:"x"` // annihilated by Embed0's Level1e
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}
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type Embed0b Embed0
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type Embed0c Embed0
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type Embed0p struct {
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image.Point
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}
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type Embed0q struct {
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Point
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}
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type embed struct {
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Q int
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}
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type Loop struct {
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Loop1 int `json:",omitempty"`
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Loop2 int `json:",omitempty"`
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*Loop
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}
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// From reflect test:
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// The X in S6 and S7 annihilate, but they also block the X in S8.S9.
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type S5 struct {
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S6
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S7
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S8
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}
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type S6 struct {
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X int
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}
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type S7 S6
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type S8 struct {
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S9
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}
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type S9 struct {
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X int
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Y int
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}
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// From reflect test:
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// The X in S11.S6 and S12.S6 annihilate, but they also block the X in S13.S8.S9.
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type S10 struct {
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S11
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S12
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S13
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}
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type S11 struct {
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S6
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}
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type S12 struct {
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S6
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}
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type S13 struct {
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S8
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}
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type Ambig struct {
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// Given "hello", the first match should win.
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First int `json:"HELLO"`
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Second int `json:"Hello"`
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}
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type XYZ struct {
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X any
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Y any
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Z any
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}
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type unexportedWithMethods struct{}
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func (unexportedWithMethods) F() {}
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type byteWithMarshalJSON byte
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func (b byteWithMarshalJSON) MarshalJSON() ([]byte, error) {
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return []byte(fmt.Sprintf(`"Z%.2x"`, byte(b))), nil
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}
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func (b *byteWithMarshalJSON) UnmarshalJSON(data []byte) error {
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if len(data) != 5 || data[0] != '"' || data[1] != 'Z' || data[4] != '"' {
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return fmt.Errorf("bad quoted string")
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}
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i, err := strconv.ParseInt(string(data[2:4]), 16, 8)
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if err != nil {
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return fmt.Errorf("bad hex")
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}
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*b = byteWithMarshalJSON(i)
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return nil
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}
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type byteWithPtrMarshalJSON byte
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func (b *byteWithPtrMarshalJSON) MarshalJSON() ([]byte, error) {
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return byteWithMarshalJSON(*b).MarshalJSON()
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}
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func (b *byteWithPtrMarshalJSON) UnmarshalJSON(data []byte) error {
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return (*byteWithMarshalJSON)(b).UnmarshalJSON(data)
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}
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type byteWithMarshalText byte
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func (b byteWithMarshalText) MarshalText() ([]byte, error) {
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return []byte(fmt.Sprintf(`Z%.2x`, byte(b))), nil
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}
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func (b *byteWithMarshalText) UnmarshalText(data []byte) error {
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if len(data) != 3 || data[0] != 'Z' {
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return fmt.Errorf("bad quoted string")
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}
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i, err := strconv.ParseInt(string(data[1:3]), 16, 8)
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if err != nil {
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return fmt.Errorf("bad hex")
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}
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*b = byteWithMarshalText(i)
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return nil
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}
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type byteWithPtrMarshalText byte
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func (b *byteWithPtrMarshalText) MarshalText() ([]byte, error) {
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return byteWithMarshalText(*b).MarshalText()
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}
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func (b *byteWithPtrMarshalText) UnmarshalText(data []byte) error {
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return (*byteWithMarshalText)(b).UnmarshalText(data)
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}
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type intWithMarshalJSON int
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func (b intWithMarshalJSON) MarshalJSON() ([]byte, error) {
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return []byte(fmt.Sprintf(`"Z%.2x"`, int(b))), nil
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}
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func (b *intWithMarshalJSON) UnmarshalJSON(data []byte) error {
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if len(data) != 5 || data[0] != '"' || data[1] != 'Z' || data[4] != '"' {
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return fmt.Errorf("bad quoted string")
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}
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i, err := strconv.ParseInt(string(data[2:4]), 16, 8)
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if err != nil {
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return fmt.Errorf("bad hex")
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}
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*b = intWithMarshalJSON(i)
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return nil
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}
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type intWithPtrMarshalJSON int
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func (b *intWithPtrMarshalJSON) MarshalJSON() ([]byte, error) {
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return intWithMarshalJSON(*b).MarshalJSON()
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}
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func (b *intWithPtrMarshalJSON) UnmarshalJSON(data []byte) error {
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return (*intWithMarshalJSON)(b).UnmarshalJSON(data)
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}
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type intWithMarshalText int
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func (b intWithMarshalText) MarshalText() ([]byte, error) {
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return []byte(fmt.Sprintf(`Z%.2x`, int(b))), nil
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}
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func (b *intWithMarshalText) UnmarshalText(data []byte) error {
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if len(data) != 3 || data[0] != 'Z' {
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return fmt.Errorf("bad quoted string")
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}
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i, err := strconv.ParseInt(string(data[1:3]), 16, 8)
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if err != nil {
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||
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return fmt.Errorf("bad hex")
|
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}
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*b = intWithMarshalText(i)
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return nil
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}
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type intWithPtrMarshalText int
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func (b *intWithPtrMarshalText) MarshalText() ([]byte, error) {
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return intWithMarshalText(*b).MarshalText()
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}
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||
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func (b *intWithPtrMarshalText) UnmarshalText(data []byte) error {
|
||
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return (*intWithMarshalText)(b).UnmarshalText(data)
|
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|
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}
|
||
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|
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type mapStringToStringData struct {
|
||
|
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Data map[string]string `json:"data"`
|
||
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}
|
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type unmarshalTest struct {
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in string
|
||
|
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ptr any // new(type)
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out any
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err error
|
||
|
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useNumber bool
|
||
|
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golden bool
|
||
|
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disallowUnknownFields bool
|
||
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}
|
||
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||
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type B struct {
|
||
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B bool `json:",string"`
|
||
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}
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||
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|
||
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type DoublePtr struct {
|
||
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I **int
|
||
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J **int
|
||
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}
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||
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|
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var unmarshalTests = []unmarshalTest{
|
||
|
|
// basic types
|
||
|
|
{in: `true`, ptr: new(bool), out: true},
|
||
|
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{in: `1`, ptr: new(int), out: 1},
|
||
|
|
{in: `1.2`, ptr: new(float64), out: 1.2},
|
||
|
|
{in: `-5`, ptr: new(int16), out: int16(-5)},
|
||
|
|
{in: `2`, ptr: new(Number), out: Number("2"), useNumber: true},
|
||
|
|
{in: `2`, ptr: new(Number), out: Number("2")},
|
||
|
|
{in: `2`, ptr: new(any), out: float64(2.0)},
|
||
|
|
{in: `2`, ptr: new(any), out: Number("2"), useNumber: true},
|
||
|
|
{in: `"a\u1234"`, ptr: new(string), out: "a\u1234"},
|
||
|
|
{in: `"http:\/\/"`, ptr: new(string), out: "http://"},
|
||
|
|
{in: `"g-clef: \uD834\uDD1E"`, ptr: new(string), out: "g-clef: \U0001D11E"},
|
||
|
|
{in: `"invalid: \uD834x\uDD1E"`, ptr: new(string), out: "invalid: \uFFFDx\uFFFD"},
|
||
|
|
{in: "null", ptr: new(any), out: nil},
|
||
|
|
{in: `{"X": [1,2,3], "Y": 4}`, ptr: new(T), out: T{Y: 4}, err: &UnmarshalTypeError{"array", reflect.TypeOf(""), 7, "T", "X"}},
|
||
|
|
{in: `{"X": 23}`, ptr: new(T), out: T{}, err: &UnmarshalTypeError{"number", reflect.TypeOf(""), 8, "T", "X"}}, {in: `{"x": 1}`, ptr: new(tx), out: tx{}},
|
||
|
|
{in: `{"x": 1}`, ptr: new(tx), out: tx{}},
|
||
|
|
{in: `{"x": 1}`, ptr: new(tx), err: fmt.Errorf("json: unknown field \"x\""), disallowUnknownFields: true},
|
||
|
|
{in: `{"S": 23}`, ptr: new(W), out: W{}, err: &UnmarshalTypeError{"number", reflect.TypeOf(SS("")), 0, "W", "S"}},
|
||
|
|
{in: `{"F1":1,"F2":2,"F3":3}`, ptr: new(V), out: V{F1: float64(1), F2: int32(2), F3: Number("3")}},
|
||
|
|
{in: `{"F1":1,"F2":2,"F3":3}`, ptr: new(V), out: V{F1: Number("1"), F2: int32(2), F3: Number("3")}, useNumber: true},
|
||
|
|
{in: `{"k1":1,"k2":"s","k3":[1,2.0,3e-3],"k4":{"kk1":"s","kk2":2}}`, ptr: new(any), out: ifaceNumAsFloat64},
|
||
|
|
{in: `{"k1":1,"k2":"s","k3":[1,2.0,3e-3],"k4":{"kk1":"s","kk2":2}}`, ptr: new(any), out: ifaceNumAsNumber, useNumber: true},
|
||
|
|
|
||
|
|
// raw values with whitespace
|
||
|
|
{in: "\n true ", ptr: new(bool), out: true},
|
||
|
|
{in: "\t 1 ", ptr: new(int), out: 1},
|
||
|
|
{in: "\r 1.2 ", ptr: new(float64), out: 1.2},
|
||
|
|
{in: "\t -5 \n", ptr: new(int16), out: int16(-5)},
|
||
|
|
{in: "\t \"a\\u1234\" \n", ptr: new(string), out: "a\u1234"},
|
||
|
|
|
||
|
|
// Z has a "-" tag.
|
||
|
|
{in: `{"Y": 1, "Z": 2}`, ptr: new(T), out: T{Y: 1}},
|
||
|
|
{in: `{"Y": 1, "Z": 2}`, ptr: new(T), err: fmt.Errorf("json: unknown field \"Z\""), disallowUnknownFields: true},
|
||
|
|
|
||
|
|
{in: `{"alpha": "abc", "alphabet": "xyz"}`, ptr: new(U), out: U{Alphabet: "abc"}},
|
||
|
|
{in: `{"alpha": "abc", "alphabet": "xyz"}`, ptr: new(U), err: fmt.Errorf("json: unknown field \"alphabet\""), disallowUnknownFields: true},
|
||
|
|
{in: `{"alpha": "abc"}`, ptr: new(U), out: U{Alphabet: "abc"}},
|
||
|
|
{in: `{"alphabet": "xyz"}`, ptr: new(U), out: U{}},
|
||
|
|
{in: `{"alphabet": "xyz"}`, ptr: new(U), err: fmt.Errorf("json: unknown field \"alphabet\""), disallowUnknownFields: true},
|
||
|
|
|
||
|
|
// syntax errors
|
||
|
|
{in: `{"X": "foo", "Y"}`, err: &SyntaxError{"invalid character '}' after object key", 17}},
|
||
|
|
{in: `[1, 2, 3+]`, err: &SyntaxError{"invalid character '+' after array element", 9}},
|
||
|
|
{in: `{"X":12x}`, err: &SyntaxError{"invalid character 'x' after object key:value pair", 8}, useNumber: true},
|
||
|
|
{in: `[2, 3`, err: &SyntaxError{msg: "unexpected end of JSON input", Offset: 5}},
|
||
|
|
{in: `{"F3": -}`, ptr: new(V), out: V{F3: Number("-")}, err: &SyntaxError{msg: "invalid character '}' in numeric literal", Offset: 9}},
|
||
|
|
|
||
|
|
// raw value errors
|
||
|
|
{in: "\x01 42", err: &SyntaxError{"invalid character '\\x01' looking for beginning of value", 1}},
|
||
|
|
{in: " 42 \x01", err: &SyntaxError{"invalid character '\\x01' after top-level value", 5}},
|
||
|
|
{in: "\x01 true", err: &SyntaxError{"invalid character '\\x01' looking for beginning of value", 1}},
|
||
|
|
{in: " false \x01", err: &SyntaxError{"invalid character '\\x01' after top-level value", 8}},
|
||
|
|
{in: "\x01 1.2", err: &SyntaxError{"invalid character '\\x01' looking for beginning of value", 1}},
|
||
|
|
{in: " 3.4 \x01", err: &SyntaxError{"invalid character '\\x01' after top-level value", 6}},
|
||
|
|
{in: "\x01 \"string\"", err: &SyntaxError{"invalid character '\\x01' looking for beginning of value", 1}},
|
||
|
|
{in: " \"string\" \x01", err: &SyntaxError{"invalid character '\\x01' after top-level value", 11}},
|
||
|
|
|
||
|
|
// array tests
|
||
|
|
{in: `[1, 2, 3]`, ptr: new([3]int), out: [3]int{1, 2, 3}},
|
||
|
|
{in: `[1, 2, 3]`, ptr: new([1]int), out: [1]int{1}},
|
||
|
|
{in: `[1, 2, 3]`, ptr: new([5]int), out: [5]int{1, 2, 3, 0, 0}},
|
||
|
|
{in: `[1, 2, 3]`, ptr: new(MustNotUnmarshalJSON), err: errors.New("MustNotUnmarshalJSON was used")},
|
||
|
|
|
||
|
|
// empty array to interface test
|
||
|
|
{in: `[]`, ptr: new([]any), out: []any{}},
|
||
|
|
{in: `null`, ptr: new([]any), out: []any(nil)},
|
||
|
|
{in: `{"T":[]}`, ptr: new(map[string]any), out: map[string]any{"T": []any{}}},
|
||
|
|
{in: `{"T":null}`, ptr: new(map[string]any), out: map[string]any{"T": any(nil)}},
|
||
|
|
|
||
|
|
// composite tests
|
||
|
|
{in: allValueIndent, ptr: new(All), out: allValue},
|
||
|
|
{in: allValueCompact, ptr: new(All), out: allValue},
|
||
|
|
{in: allValueIndent, ptr: new(*All), out: &allValue},
|
||
|
|
{in: allValueCompact, ptr: new(*All), out: &allValue},
|
||
|
|
{in: pallValueIndent, ptr: new(All), out: pallValue},
|
||
|
|
{in: pallValueCompact, ptr: new(All), out: pallValue},
|
||
|
|
{in: pallValueIndent, ptr: new(*All), out: &pallValue},
|
||
|
|
{in: pallValueCompact, ptr: new(*All), out: &pallValue},
|
||
|
|
|
||
|
|
// unmarshal interface test
|
||
|
|
{in: `{"T":false}`, ptr: new(unmarshaler), out: umtrue}, // use "false" so test will fail if custom unmarshaler is not called
|
||
|
|
{in: `{"T":false}`, ptr: new(*unmarshaler), out: &umtrue},
|
||
|
|
{in: `[{"T":false}]`, ptr: new([]unmarshaler), out: umslice},
|
||
|
|
{in: `[{"T":false}]`, ptr: new(*[]unmarshaler), out: &umslice},
|
||
|
|
{in: `{"M":{"T":"x:y"}}`, ptr: new(ustruct), out: umstruct},
|
||
|
|
|
||
|
|
// UnmarshalText interface test
|
||
|
|
{in: `"x:y"`, ptr: new(unmarshalerText), out: umtrueXY},
|
||
|
|
{in: `"x:y"`, ptr: new(*unmarshalerText), out: &umtrueXY},
|
||
|
|
{in: `["x:y"]`, ptr: new([]unmarshalerText), out: umsliceXY},
|
||
|
|
{in: `["x:y"]`, ptr: new(*[]unmarshalerText), out: &umsliceXY},
|
||
|
|
{in: `{"M":"x:y"}`, ptr: new(ustructText), out: umstructXY},
|
||
|
|
|
||
|
|
// integer-keyed map test
|
||
|
|
{
|
||
|
|
in: `{"-1":"a","0":"b","1":"c"}`,
|
||
|
|
ptr: new(map[int]string),
|
||
|
|
out: map[int]string{-1: "a", 0: "b", 1: "c"},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"0":"a","10":"c","9":"b"}`,
|
||
|
|
ptr: new(map[u8]string),
|
||
|
|
out: map[u8]string{0: "a", 9: "b", 10: "c"},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"-9223372036854775808":"min","9223372036854775807":"max"}`,
|
||
|
|
ptr: new(map[int64]string),
|
||
|
|
out: map[int64]string{math.MinInt64: "min", math.MaxInt64: "max"},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"18446744073709551615":"max"}`,
|
||
|
|
ptr: new(map[uint64]string),
|
||
|
|
out: map[uint64]string{math.MaxUint64: "max"},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"0":false,"10":true}`,
|
||
|
|
ptr: new(map[uintptr]bool),
|
||
|
|
out: map[uintptr]bool{0: false, 10: true},
|
||
|
|
},
|
||
|
|
|
||
|
|
// Check that MarshalText and UnmarshalText take precedence
|
||
|
|
// over default integer handling in map keys.
|
||
|
|
{
|
||
|
|
in: `{"u2":4}`,
|
||
|
|
ptr: new(map[u8marshal]int),
|
||
|
|
out: map[u8marshal]int{2: 4},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"2":4}`,
|
||
|
|
ptr: new(map[u8marshal]int),
|
||
|
|
err: errMissingU8Prefix,
|
||
|
|
},
|
||
|
|
|
||
|
|
// integer-keyed map errors
|
||
|
|
{
|
||
|
|
in: `{"abc":"abc"}`,
|
||
|
|
ptr: new(map[int]string),
|
||
|
|
err: &UnmarshalTypeError{Value: "number abc", Type: reflect.TypeOf(0), Offset: 2},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"256":"abc"}`,
|
||
|
|
ptr: new(map[uint8]string),
|
||
|
|
err: &UnmarshalTypeError{Value: "number 256", Type: reflect.TypeOf(uint8(0)), Offset: 2},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"128":"abc"}`,
|
||
|
|
ptr: new(map[int8]string),
|
||
|
|
err: &UnmarshalTypeError{Value: "number 128", Type: reflect.TypeOf(int8(0)), Offset: 2},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"-1":"abc"}`,
|
||
|
|
ptr: new(map[uint8]string),
|
||
|
|
err: &UnmarshalTypeError{Value: "number -1", Type: reflect.TypeOf(uint8(0)), Offset: 2},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"F":{"a":2,"3":4}}`,
|
||
|
|
ptr: new(map[string]map[int]int),
|
||
|
|
err: &UnmarshalTypeError{Value: "number a", Type: reflect.TypeOf(int(0)), Offset: 7},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"F":{"a":2,"3":4}}`,
|
||
|
|
ptr: new(map[string]map[uint]int),
|
||
|
|
err: &UnmarshalTypeError{Value: "number a", Type: reflect.TypeOf(uint(0)), Offset: 7},
|
||
|
|
},
|
||
|
|
|
||
|
|
// Map keys can be encoding.TextUnmarshalers.
|
||
|
|
{in: `{"x:y":true}`, ptr: new(map[unmarshalerText]bool), out: ummapXY},
|
||
|
|
// If multiple values for the same key exists, only the most recent value is used.
|
||
|
|
{in: `{"x:y":false,"x:y":true}`, ptr: new(map[unmarshalerText]bool), out: ummapXY},
|
||
|
|
|
||
|
|
{
|
||
|
|
in: `{
|
||
|
|
"Level0": 1,
|
||
|
|
"Level1b": 2,
|
||
|
|
"Level1c": 3,
|
||
|
|
"x": 4,
|
||
|
|
"Level1a": 5,
|
||
|
|
"LEVEL1B": 6,
|
||
|
|
"e": {
|
||
|
|
"Level1a": 8,
|
||
|
|
"Level1b": 9,
|
||
|
|
"Level1c": 10,
|
||
|
|
"Level1d": 11,
|
||
|
|
"x": 12
|
||
|
|
},
|
||
|
|
"Loop1": 13,
|
||
|
|
"Loop2": 14,
|
||
|
|
"X": 15,
|
||
|
|
"Y": 16,
|
||
|
|
"Z": 17,
|
||
|
|
"Q": 18
|
||
|
|
}`,
|
||
|
|
ptr: new(Top),
|
||
|
|
out: Top{
|
||
|
|
Level0: 1,
|
||
|
|
Embed0: Embed0{
|
||
|
|
Level1b: 2,
|
||
|
|
Level1c: 3,
|
||
|
|
},
|
||
|
|
Embed0a: &Embed0a{
|
||
|
|
Level1a: 5,
|
||
|
|
Level1b: 6,
|
||
|
|
},
|
||
|
|
Embed0b: &Embed0b{
|
||
|
|
Level1a: 8,
|
||
|
|
Level1b: 9,
|
||
|
|
Level1c: 10,
|
||
|
|
Level1d: 11,
|
||
|
|
Level1e: 12,
|
||
|
|
},
|
||
|
|
Loop: Loop{
|
||
|
|
Loop1: 13,
|
||
|
|
Loop2: 14,
|
||
|
|
},
|
||
|
|
Embed0p: Embed0p{
|
||
|
|
Point: image.Point{X: 15, Y: 16},
|
||
|
|
},
|
||
|
|
Embed0q: Embed0q{
|
||
|
|
Point: Point{Z: 17},
|
||
|
|
},
|
||
|
|
embed: embed{
|
||
|
|
Q: 18,
|
||
|
|
},
|
||
|
|
},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"hello": 1}`,
|
||
|
|
ptr: new(Ambig),
|
||
|
|
out: Ambig{First: 1},
|
||
|
|
},
|
||
|
|
|
||
|
|
{
|
||
|
|
in: `{"X": 1,"Y":2}`,
|
||
|
|
ptr: new(S5),
|
||
|
|
out: S5{S8: S8{S9: S9{Y: 2}}},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"X": 1,"Y":2}`,
|
||
|
|
ptr: new(S5),
|
||
|
|
err: fmt.Errorf("json: unknown field \"X\""),
|
||
|
|
disallowUnknownFields: true,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"X": 1,"Y":2}`,
|
||
|
|
ptr: new(S10),
|
||
|
|
out: S10{S13: S13{S8: S8{S9: S9{Y: 2}}}},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"X": 1,"Y":2}`,
|
||
|
|
ptr: new(S10),
|
||
|
|
err: fmt.Errorf("json: unknown field \"X\""),
|
||
|
|
disallowUnknownFields: true,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"I": 0, "I": null, "J": null}`,
|
||
|
|
ptr: new(DoublePtr),
|
||
|
|
out: DoublePtr{I: nil, J: nil},
|
||
|
|
},
|
||
|
|
|
||
|
|
// invalid UTF-8 is coerced to valid UTF-8.
|
||
|
|
{
|
||
|
|
in: "\"hello\xffworld\"",
|
||
|
|
ptr: new(string),
|
||
|
|
out: "hello\ufffdworld",
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: "\"hello\xc2\xc2world\"",
|
||
|
|
ptr: new(string),
|
||
|
|
out: "hello\ufffd\ufffdworld",
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: "\"hello\xc2\xffworld\"",
|
||
|
|
ptr: new(string),
|
||
|
|
out: "hello\ufffd\ufffdworld",
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: "\"hello\\ud800world\"",
|
||
|
|
ptr: new(string),
|
||
|
|
out: "hello\ufffdworld",
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: "\"hello\\ud800\\ud800world\"",
|
||
|
|
ptr: new(string),
|
||
|
|
out: "hello\ufffd\ufffdworld",
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: "\"hello\\ud800\\ud800world\"",
|
||
|
|
ptr: new(string),
|
||
|
|
out: "hello\ufffd\ufffdworld",
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: "\"hello\xed\xa0\x80\xed\xb0\x80world\"",
|
||
|
|
ptr: new(string),
|
||
|
|
out: "hello\ufffd\ufffd\ufffd\ufffd\ufffd\ufffdworld",
|
||
|
|
},
|
||
|
|
|
||
|
|
// Used to be issue 8305, but time.Time implements encoding.TextUnmarshaler so this works now.
|
||
|
|
{
|
||
|
|
in: `{"2009-11-10T23:00:00Z": "hello world"}`,
|
||
|
|
ptr: new(map[time.Time]string),
|
||
|
|
out: map[time.Time]string{time.Date(2009, 11, 10, 23, 0, 0, 0, time.UTC): "hello world"},
|
||
|
|
},
|
||
|
|
|
||
|
|
// issue 8305
|
||
|
|
{
|
||
|
|
in: `{"2009-11-10T23:00:00Z": "hello world"}`,
|
||
|
|
ptr: new(map[Point]string),
|
||
|
|
err: &UnmarshalTypeError{Value: "object", Type: reflect.TypeOf(map[Point]string{}), Offset: 1},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"asdf": "hello world"}`,
|
||
|
|
ptr: new(map[unmarshaler]string),
|
||
|
|
err: &UnmarshalTypeError{Value: "object", Type: reflect.TypeOf(map[unmarshaler]string{}), Offset: 1},
|
||
|
|
},
|
||
|
|
|
||
|
|
// related to issue 13783.
|
||
|
|
// Go 1.7 changed marshaling a slice of typed byte to use the methods on the byte type,
|
||
|
|
// similar to marshaling a slice of typed int.
|
||
|
|
// These tests check that, assuming the byte type also has valid decoding methods,
|
||
|
|
// either the old base64 string encoding or the new per-element encoding can be
|
||
|
|
// successfully unmarshaled. The custom unmarshalers were accessible in earlier
|
||
|
|
// versions of Go, even though the custom marshaler was not.
|
||
|
|
{
|
||
|
|
in: `"AQID"`,
|
||
|
|
ptr: new([]byteWithMarshalJSON),
|
||
|
|
out: []byteWithMarshalJSON{1, 2, 3},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `["Z01","Z02","Z03"]`,
|
||
|
|
ptr: new([]byteWithMarshalJSON),
|
||
|
|
out: []byteWithMarshalJSON{1, 2, 3},
|
||
|
|
golden: true,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `"AQID"`,
|
||
|
|
ptr: new([]byteWithMarshalText),
|
||
|
|
out: []byteWithMarshalText{1, 2, 3},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `["Z01","Z02","Z03"]`,
|
||
|
|
ptr: new([]byteWithMarshalText),
|
||
|
|
out: []byteWithMarshalText{1, 2, 3},
|
||
|
|
golden: true,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `"AQID"`,
|
||
|
|
ptr: new([]byteWithPtrMarshalJSON),
|
||
|
|
out: []byteWithPtrMarshalJSON{1, 2, 3},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `["Z01","Z02","Z03"]`,
|
||
|
|
ptr: new([]byteWithPtrMarshalJSON),
|
||
|
|
out: []byteWithPtrMarshalJSON{1, 2, 3},
|
||
|
|
golden: true,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `"AQID"`,
|
||
|
|
ptr: new([]byteWithPtrMarshalText),
|
||
|
|
out: []byteWithPtrMarshalText{1, 2, 3},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `["Z01","Z02","Z03"]`,
|
||
|
|
ptr: new([]byteWithPtrMarshalText),
|
||
|
|
out: []byteWithPtrMarshalText{1, 2, 3},
|
||
|
|
golden: true,
|
||
|
|
},
|
||
|
|
|
||
|
|
// ints work with the marshaler but not the base64 []byte case
|
||
|
|
{
|
||
|
|
in: `["Z01","Z02","Z03"]`,
|
||
|
|
ptr: new([]intWithMarshalJSON),
|
||
|
|
out: []intWithMarshalJSON{1, 2, 3},
|
||
|
|
golden: true,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `["Z01","Z02","Z03"]`,
|
||
|
|
ptr: new([]intWithMarshalText),
|
||
|
|
out: []intWithMarshalText{1, 2, 3},
|
||
|
|
golden: true,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `["Z01","Z02","Z03"]`,
|
||
|
|
ptr: new([]intWithPtrMarshalJSON),
|
||
|
|
out: []intWithPtrMarshalJSON{1, 2, 3},
|
||
|
|
golden: true,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `["Z01","Z02","Z03"]`,
|
||
|
|
ptr: new([]intWithPtrMarshalText),
|
||
|
|
out: []intWithPtrMarshalText{1, 2, 3},
|
||
|
|
golden: true,
|
||
|
|
},
|
||
|
|
|
||
|
|
{in: `0.000001`, ptr: new(float64), out: 0.000001, golden: true},
|
||
|
|
{in: `1e-7`, ptr: new(float64), out: 1e-7, golden: true},
|
||
|
|
{in: `100000000000000000000`, ptr: new(float64), out: 100000000000000000000.0, golden: true},
|
||
|
|
{in: `1e+21`, ptr: new(float64), out: 1e21, golden: true},
|
||
|
|
{in: `-0.000001`, ptr: new(float64), out: -0.000001, golden: true},
|
||
|
|
{in: `-1e-7`, ptr: new(float64), out: -1e-7, golden: true},
|
||
|
|
{in: `-100000000000000000000`, ptr: new(float64), out: -100000000000000000000.0, golden: true},
|
||
|
|
{in: `-1e+21`, ptr: new(float64), out: -1e21, golden: true},
|
||
|
|
{in: `999999999999999900000`, ptr: new(float64), out: 999999999999999900000.0, golden: true},
|
||
|
|
{in: `9007199254740992`, ptr: new(float64), out: 9007199254740992.0, golden: true},
|
||
|
|
{in: `9007199254740993`, ptr: new(float64), out: 9007199254740992.0, golden: false},
|
||
|
|
|
||
|
|
{
|
||
|
|
in: `{"V": {"F2": "hello"}}`,
|
||
|
|
ptr: new(VOuter),
|
||
|
|
err: &UnmarshalTypeError{
|
||
|
|
Value: "string",
|
||
|
|
Struct: "V",
|
||
|
|
Field: "V.F2",
|
||
|
|
Type: reflect.TypeOf(int32(0)),
|
||
|
|
Offset: 20,
|
||
|
|
},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"V": {"F4": {}, "F2": "hello"}}`,
|
||
|
|
ptr: new(VOuter),
|
||
|
|
err: &UnmarshalTypeError{
|
||
|
|
Value: "string",
|
||
|
|
Struct: "V",
|
||
|
|
Field: "V.F2",
|
||
|
|
Type: reflect.TypeOf(int32(0)),
|
||
|
|
Offset: 30,
|
||
|
|
},
|
||
|
|
},
|
||
|
|
|
||
|
|
// issue 15146.
|
||
|
|
// invalid inputs in wrongStringTests below.
|
||
|
|
{in: `{"B":"true"}`, ptr: new(B), out: B{true}, golden: true},
|
||
|
|
{in: `{"B":"false"}`, ptr: new(B), out: B{false}, golden: true},
|
||
|
|
{in: `{"B": "maybe"}`, ptr: new(B), err: errors.New(`json: invalid use of ,string struct tag, trying to unmarshal "maybe" into bool`)},
|
||
|
|
{in: `{"B": "tru"}`, ptr: new(B), err: errors.New(`json: invalid use of ,string struct tag, trying to unmarshal "tru" into bool`)},
|
||
|
|
{in: `{"B": "False"}`, ptr: new(B), err: errors.New(`json: invalid use of ,string struct tag, trying to unmarshal "False" into bool`)},
|
||
|
|
{in: `{"B": "null"}`, ptr: new(B), out: B{false}},
|
||
|
|
{in: `{"B": "nul"}`, ptr: new(B), err: errors.New(`json: invalid use of ,string struct tag, trying to unmarshal "nul" into bool`)},
|
||
|
|
{in: `{"B": [2, 3]}`, ptr: new(B), err: errors.New(`json: invalid use of ,string struct tag, trying to unmarshal unquoted value into bool`)},
|
||
|
|
|
||
|
|
// additional tests for disallowUnknownFields
|
||
|
|
{
|
||
|
|
in: `{
|
||
|
|
"Level0": 1,
|
||
|
|
"Level1b": 2,
|
||
|
|
"Level1c": 3,
|
||
|
|
"x": 4,
|
||
|
|
"Level1a": 5,
|
||
|
|
"LEVEL1B": 6,
|
||
|
|
"e": {
|
||
|
|
"Level1a": 8,
|
||
|
|
"Level1b": 9,
|
||
|
|
"Level1c": 10,
|
||
|
|
"Level1d": 11,
|
||
|
|
"x": 12
|
||
|
|
},
|
||
|
|
"Loop1": 13,
|
||
|
|
"Loop2": 14,
|
||
|
|
"X": 15,
|
||
|
|
"Y": 16,
|
||
|
|
"Z": 17,
|
||
|
|
"Q": 18,
|
||
|
|
"extra": true
|
||
|
|
}`,
|
||
|
|
ptr: new(Top),
|
||
|
|
err: fmt.Errorf("json: unknown field \"extra\""),
|
||
|
|
disallowUnknownFields: true,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{
|
||
|
|
"Level0": 1,
|
||
|
|
"Level1b": 2,
|
||
|
|
"Level1c": 3,
|
||
|
|
"x": 4,
|
||
|
|
"Level1a": 5,
|
||
|
|
"LEVEL1B": 6,
|
||
|
|
"e": {
|
||
|
|
"Level1a": 8,
|
||
|
|
"Level1b": 9,
|
||
|
|
"Level1c": 10,
|
||
|
|
"Level1d": 11,
|
||
|
|
"x": 12,
|
||
|
|
"extra": null
|
||
|
|
},
|
||
|
|
"Loop1": 13,
|
||
|
|
"Loop2": 14,
|
||
|
|
"X": 15,
|
||
|
|
"Y": 16,
|
||
|
|
"Z": 17,
|
||
|
|
"Q": 18
|
||
|
|
}`,
|
||
|
|
ptr: new(Top),
|
||
|
|
err: fmt.Errorf("json: unknown field \"extra\""),
|
||
|
|
disallowUnknownFields: true,
|
||
|
|
},
|
||
|
|
// issue 26444
|
||
|
|
// UnmarshalTypeError without field & struct values
|
||
|
|
{
|
||
|
|
in: `{"data":{"test1": "bob", "test2": 123}}`,
|
||
|
|
ptr: new(mapStringToStringData),
|
||
|
|
err: &UnmarshalTypeError{Value: "number", Type: reflect.TypeOf(""), Offset: 37, Struct: "mapStringToStringData", Field: "data"},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"data":{"test1": 123, "test2": "bob"}}`,
|
||
|
|
ptr: new(mapStringToStringData),
|
||
|
|
err: &UnmarshalTypeError{Value: "number", Type: reflect.TypeOf(""), Offset: 21, Struct: "mapStringToStringData", Field: "data"},
|
||
|
|
},
|
||
|
|
|
||
|
|
// trying to decode JSON arrays or objects via TextUnmarshaler
|
||
|
|
{
|
||
|
|
in: `[1, 2, 3]`,
|
||
|
|
ptr: new(MustNotUnmarshalText),
|
||
|
|
err: &UnmarshalTypeError{Value: "array", Type: reflect.TypeOf(&MustNotUnmarshalText{}), Offset: 1},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"foo": "bar"}`,
|
||
|
|
ptr: new(MustNotUnmarshalText),
|
||
|
|
err: &UnmarshalTypeError{Value: "object", Type: reflect.TypeOf(&MustNotUnmarshalText{}), Offset: 1},
|
||
|
|
},
|
||
|
|
// #22369
|
||
|
|
{
|
||
|
|
in: `{"PP": {"T": {"Y": "bad-type"}}}`,
|
||
|
|
ptr: new(P),
|
||
|
|
err: &UnmarshalTypeError{
|
||
|
|
Value: "string",
|
||
|
|
Struct: "T",
|
||
|
|
Field: "PP.T.Y",
|
||
|
|
Type: reflect.TypeOf(int(0)),
|
||
|
|
Offset: 29,
|
||
|
|
},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"Ts": [{"Y": 1}, {"Y": 2}, {"Y": "bad-type"}]}`,
|
||
|
|
ptr: new(PP),
|
||
|
|
err: &UnmarshalTypeError{
|
||
|
|
Value: "string",
|
||
|
|
Struct: "T",
|
||
|
|
Field: "Ts.Y",
|
||
|
|
Type: reflect.TypeOf(int(0)),
|
||
|
|
Offset: 29,
|
||
|
|
},
|
||
|
|
},
|
||
|
|
// #14702
|
||
|
|
{
|
||
|
|
in: `invalid`,
|
||
|
|
ptr: new(Number),
|
||
|
|
err: &SyntaxError{
|
||
|
|
msg: "invalid character 'i' looking for beginning of value",
|
||
|
|
Offset: 1,
|
||
|
|
},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `"invalid"`,
|
||
|
|
ptr: new(Number),
|
||
|
|
err: fmt.Errorf("json: invalid number literal, trying to unmarshal %q into Number", `"invalid"`),
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"A":"invalid"}`,
|
||
|
|
ptr: new(struct{ A Number }),
|
||
|
|
err: fmt.Errorf("json: invalid number literal, trying to unmarshal %q into Number", `"invalid"`),
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"A":"invalid"}`,
|
||
|
|
ptr: new(struct {
|
||
|
|
A Number `json:",string"`
|
||
|
|
}),
|
||
|
|
err: fmt.Errorf("json: invalid use of ,string struct tag, trying to unmarshal %q into json.Number", `invalid`),
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"A":"invalid"}`,
|
||
|
|
ptr: new(map[string]Number),
|
||
|
|
err: fmt.Errorf("json: invalid number literal, trying to unmarshal %q into Number", `"invalid"`),
|
||
|
|
},
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestMarshal(t *testing.T) {
|
||
|
|
b, err := Marshal(allValue)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Marshal allValue: %v", err)
|
||
|
|
}
|
||
|
|
if string(b) != allValueCompact {
|
||
|
|
t.Errorf("Marshal allValueCompact")
|
||
|
|
diff(t, b, []byte(allValueCompact))
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
b, err = Marshal(pallValue)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Marshal pallValue: %v", err)
|
||
|
|
}
|
||
|
|
if string(b) != pallValueCompact {
|
||
|
|
t.Errorf("Marshal pallValueCompact")
|
||
|
|
diff(t, b, []byte(pallValueCompact))
|
||
|
|
return
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var badUTF8 = []struct {
|
||
|
|
in, out string
|
||
|
|
}{
|
||
|
|
{"hello\xffworld", `"hello\ufffdworld"`},
|
||
|
|
{"", `""`},
|
||
|
|
{"\xff", `"\ufffd"`},
|
||
|
|
{"\xff\xff", `"\ufffd\ufffd"`},
|
||
|
|
{"a\xffb", `"a\ufffdb"`},
|
||
|
|
{"\xe6\x97\xa5\xe6\x9c\xac\xff\xaa\x9e", `"日本\ufffd\ufffd\ufffd"`},
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestMarshalBadUTF8(t *testing.T) {
|
||
|
|
for _, tt := range badUTF8 {
|
||
|
|
b, err := Marshal(tt.in)
|
||
|
|
if string(b) != tt.out || err != nil {
|
||
|
|
t.Errorf("Marshal(%q) = %#q, %v, want %#q, nil", tt.in, b, err, tt.out)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestMarshalNumberZeroVal(t *testing.T) {
|
||
|
|
var n Number
|
||
|
|
out, err := Marshal(n)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
outStr := string(out)
|
||
|
|
if outStr != "0" {
|
||
|
|
t.Fatalf("Invalid zero val for Number: %q", outStr)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestMarshalEmbeds(t *testing.T) {
|
||
|
|
top := &Top{
|
||
|
|
Level0: 1,
|
||
|
|
Embed0: Embed0{
|
||
|
|
Level1b: 2,
|
||
|
|
Level1c: 3,
|
||
|
|
},
|
||
|
|
Embed0a: &Embed0a{
|
||
|
|
Level1a: 5,
|
||
|
|
Level1b: 6,
|
||
|
|
},
|
||
|
|
Embed0b: &Embed0b{
|
||
|
|
Level1a: 8,
|
||
|
|
Level1b: 9,
|
||
|
|
Level1c: 10,
|
||
|
|
Level1d: 11,
|
||
|
|
Level1e: 12,
|
||
|
|
},
|
||
|
|
Loop: Loop{
|
||
|
|
Loop1: 13,
|
||
|
|
Loop2: 14,
|
||
|
|
},
|
||
|
|
Embed0p: Embed0p{
|
||
|
|
Point: image.Point{X: 15, Y: 16},
|
||
|
|
},
|
||
|
|
Embed0q: Embed0q{
|
||
|
|
Point: Point{Z: 17},
|
||
|
|
},
|
||
|
|
embed: embed{
|
||
|
|
Q: 18,
|
||
|
|
},
|
||
|
|
}
|
||
|
|
b, err := Marshal(top)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
want := "{\"Level0\":1,\"Level1b\":2,\"Level1c\":3,\"Level1a\":5,\"LEVEL1B\":6,\"e\":{\"Level1a\":8,\"Level1b\":9,\"Level1c\":10,\"Level1d\":11,\"x\":12},\"Loop1\":13,\"Loop2\":14,\"X\":15,\"Y\":16,\"Z\":17,\"Q\":18}"
|
||
|
|
if string(b) != want {
|
||
|
|
t.Errorf("Wrong marshal result.\n got: %q\nwant: %q", b, want)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func equalError(a, b error) bool {
|
||
|
|
if a == nil {
|
||
|
|
return b == nil
|
||
|
|
}
|
||
|
|
if b == nil {
|
||
|
|
return a == nil
|
||
|
|
}
|
||
|
|
return a.Error() == b.Error()
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestUnmarshal(t *testing.T) {
|
||
|
|
for i, tt := range unmarshalTests {
|
||
|
|
var scan scanner
|
||
|
|
in := []byte(tt.in)
|
||
|
|
if err := checkValid(in, &scan); err != nil {
|
||
|
|
if !equalError(err, tt.err) {
|
||
|
|
t.Errorf("#%d: checkValid: %#v", i, err)
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if tt.ptr == nil {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
|
||
|
|
typ := reflect.TypeOf(tt.ptr)
|
||
|
|
if typ.Kind() != reflect.Pointer {
|
||
|
|
t.Errorf("#%d: unmarshalTest.ptr %T is not a pointer type", i, tt.ptr)
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
typ = typ.Elem()
|
||
|
|
|
||
|
|
// v = new(right-type)
|
||
|
|
v := reflect.New(typ)
|
||
|
|
|
||
|
|
if !reflect.DeepEqual(tt.ptr, v.Interface()) {
|
||
|
|
// There's no reason for ptr to point to non-zero data,
|
||
|
|
// as we decode into new(right-type), so the data is
|
||
|
|
// discarded.
|
||
|
|
// This can easily mean tests that silently don't test
|
||
|
|
// what they should. To test decoding into existing
|
||
|
|
// data, see TestPrefilled.
|
||
|
|
t.Errorf("#%d: unmarshalTest.ptr %#v is not a pointer to a zero value", i, tt.ptr)
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
|
||
|
|
dec := NewDecoder(bytes.NewReader(in))
|
||
|
|
if tt.useNumber {
|
||
|
|
dec.UseNumber()
|
||
|
|
}
|
||
|
|
if tt.disallowUnknownFields {
|
||
|
|
dec.DisallowUnknownFields()
|
||
|
|
}
|
||
|
|
if err := dec.Decode(v.Interface()); !equalError(err, tt.err) {
|
||
|
|
t.Errorf("#%d: %v, want %v", i, err, tt.err)
|
||
|
|
continue
|
||
|
|
} else if err != nil {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
if !reflect.DeepEqual(v.Elem().Interface(), tt.out) {
|
||
|
|
t.Errorf("#%d: mismatch\nhave: %#+v\nwant: %#+v", i, v.Elem().Interface(), tt.out)
|
||
|
|
data, _ := Marshal(v.Elem().Interface())
|
||
|
|
println(string(data))
|
||
|
|
data, _ = Marshal(tt.out)
|
||
|
|
println(string(data))
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
|
||
|
|
// Check round trip also decodes correctly.
|
||
|
|
if tt.err == nil {
|
||
|
|
enc, err := Marshal(v.Interface())
|
||
|
|
if err != nil {
|
||
|
|
t.Errorf("#%d: error re-marshaling: %v", i, err)
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
if tt.golden && !bytes.Equal(enc, in) {
|
||
|
|
t.Errorf("#%d: remarshal mismatch:\nhave: %s\nwant: %s", i, enc, in)
|
||
|
|
}
|
||
|
|
vv := reflect.New(reflect.TypeOf(tt.ptr).Elem())
|
||
|
|
dec = NewDecoder(bytes.NewReader(enc))
|
||
|
|
if tt.useNumber {
|
||
|
|
dec.UseNumber()
|
||
|
|
}
|
||
|
|
if err := dec.Decode(vv.Interface()); err != nil {
|
||
|
|
t.Errorf("#%d: error re-unmarshaling %#q: %v", i, enc, err)
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
if !reflect.DeepEqual(v.Elem().Interface(), vv.Elem().Interface()) {
|
||
|
|
t.Errorf("#%d: mismatch\nhave: %#+v\nwant: %#+v", i, v.Elem().Interface(), vv.Elem().Interface())
|
||
|
|
t.Errorf(" In: %q", strings.Map(noSpace, string(in)))
|
||
|
|
t.Errorf("Marshal: %q", strings.Map(noSpace, string(enc)))
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestUnmarshalMarshal(t *testing.T) {
|
||
|
|
initBig()
|
||
|
|
var v any
|
||
|
|
if err := Unmarshal(jsonBig, &v); err != nil {
|
||
|
|
t.Fatalf("Unmarshal: %v", err)
|
||
|
|
}
|
||
|
|
b, err := Marshal(v)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Marshal: %v", err)
|
||
|
|
}
|
||
|
|
if !bytes.Equal(jsonBig, b) {
|
||
|
|
t.Errorf("Marshal jsonBig")
|
||
|
|
diff(t, b, jsonBig)
|
||
|
|
return
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var numberTests = []struct {
|
||
|
|
in string
|
||
|
|
i int64
|
||
|
|
intErr string
|
||
|
|
f float64
|
||
|
|
floatErr string
|
||
|
|
}{
|
||
|
|
{in: "-1.23e1", intErr: "strconv.ParseInt: parsing \"-1.23e1\": invalid syntax", f: -1.23e1},
|
||
|
|
{in: "-12", i: -12, f: -12.0},
|
||
|
|
{in: "1e1000", intErr: "strconv.ParseInt: parsing \"1e1000\": invalid syntax", floatErr: "strconv.ParseFloat: parsing \"1e1000\": value out of range"},
|
||
|
|
}
|
||
|
|
|
||
|
|
// Independent of Decode, basic coverage of the accessors in Number
|
||
|
|
func TestNumberAccessors(t *testing.T) {
|
||
|
|
for _, tt := range numberTests {
|
||
|
|
n := Number(tt.in)
|
||
|
|
if s := n.String(); s != tt.in {
|
||
|
|
t.Errorf("Number(%q).String() is %q", tt.in, s)
|
||
|
|
}
|
||
|
|
if i, err := n.Int64(); err == nil && tt.intErr == "" && i != tt.i {
|
||
|
|
t.Errorf("Number(%q).Int64() is %d", tt.in, i)
|
||
|
|
} else if (err == nil && tt.intErr != "") || (err != nil && err.Error() != tt.intErr) {
|
||
|
|
t.Errorf("Number(%q).Int64() wanted error %q but got: %v", tt.in, tt.intErr, err)
|
||
|
|
}
|
||
|
|
if f, err := n.Float64(); err == nil && tt.floatErr == "" && f != tt.f {
|
||
|
|
t.Errorf("Number(%q).Float64() is %g", tt.in, f)
|
||
|
|
} else if (err == nil && tt.floatErr != "") || (err != nil && err.Error() != tt.floatErr) {
|
||
|
|
t.Errorf("Number(%q).Float64() wanted error %q but got: %v", tt.in, tt.floatErr, err)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestLargeByteSlice(t *testing.T) {
|
||
|
|
s0 := make([]byte, 2000)
|
||
|
|
for i := range s0 {
|
||
|
|
s0[i] = byte(i)
|
||
|
|
}
|
||
|
|
b, err := Marshal(s0)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Marshal: %v", err)
|
||
|
|
}
|
||
|
|
var s1 []byte
|
||
|
|
if err := Unmarshal(b, &s1); err != nil {
|
||
|
|
t.Fatalf("Unmarshal: %v", err)
|
||
|
|
}
|
||
|
|
if !bytes.Equal(s0, s1) {
|
||
|
|
t.Errorf("Marshal large byte slice")
|
||
|
|
diff(t, s0, s1)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
type Xint struct {
|
||
|
|
X int
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestUnmarshalInterface(t *testing.T) {
|
||
|
|
var xint Xint
|
||
|
|
var i any = &xint
|
||
|
|
if err := Unmarshal([]byte(`{"X":1}`), &i); err != nil {
|
||
|
|
t.Fatalf("Unmarshal: %v", err)
|
||
|
|
}
|
||
|
|
if xint.X != 1 {
|
||
|
|
t.Fatalf("Did not write to xint")
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestUnmarshalPtrPtr(t *testing.T) {
|
||
|
|
var xint Xint
|
||
|
|
pxint := &xint
|
||
|
|
if err := Unmarshal([]byte(`{"X":1}`), &pxint); err != nil {
|
||
|
|
t.Fatalf("Unmarshal: %v", err)
|
||
|
|
}
|
||
|
|
if xint.X != 1 {
|
||
|
|
t.Fatalf("Did not write to xint")
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestEscape(t *testing.T) {
|
||
|
|
const input = `"foobar"<html>` + " [\u2028 \u2029]"
|
||
|
|
const expected = `"\"foobar\"\u003chtml\u003e [\u2028 \u2029]"`
|
||
|
|
b, err := Marshal(input)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Marshal error: %v", err)
|
||
|
|
}
|
||
|
|
if s := string(b); s != expected {
|
||
|
|
t.Errorf("Encoding of [%s]:\n got [%s]\nwant [%s]", input, s, expected)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// WrongString is a struct that's misusing the ,string modifier.
|
||
|
|
type WrongString struct {
|
||
|
|
Message string `json:"result,string"`
|
||
|
|
}
|
||
|
|
|
||
|
|
type wrongStringTest struct {
|
||
|
|
in, err string
|
||
|
|
}
|
||
|
|
|
||
|
|
var wrongStringTests = []wrongStringTest{
|
||
|
|
{`{"result":"x"}`, `json: invalid use of ,string struct tag, trying to unmarshal "x" into string`},
|
||
|
|
{`{"result":"foo"}`, `json: invalid use of ,string struct tag, trying to unmarshal "foo" into string`},
|
||
|
|
{`{"result":"123"}`, `json: invalid use of ,string struct tag, trying to unmarshal "123" into string`},
|
||
|
|
{`{"result":123}`, `json: invalid use of ,string struct tag, trying to unmarshal unquoted value into string`},
|
||
|
|
{`{"result":"\""}`, `json: invalid use of ,string struct tag, trying to unmarshal "\"" into string`},
|
||
|
|
{`{"result":"\"foo"}`, `json: invalid use of ,string struct tag, trying to unmarshal "\"foo" into string`},
|
||
|
|
}
|
||
|
|
|
||
|
|
// If people misuse the ,string modifier, the error message should be
|
||
|
|
// helpful, telling the user that they're doing it wrong.
|
||
|
|
func TestErrorMessageFromMisusedString(t *testing.T) {
|
||
|
|
for n, tt := range wrongStringTests {
|
||
|
|
r := strings.NewReader(tt.in)
|
||
|
|
var s WrongString
|
||
|
|
err := NewDecoder(r).Decode(&s)
|
||
|
|
got := fmt.Sprintf("%v", err)
|
||
|
|
if got != tt.err {
|
||
|
|
t.Errorf("%d. got err = %q, want %q", n, got, tt.err)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func noSpace(c rune) rune {
|
||
|
|
if isSpace(byte(c)) { //only used for ascii
|
||
|
|
return -1
|
||
|
|
}
|
||
|
|
return c
|
||
|
|
}
|
||
|
|
|
||
|
|
type All struct {
|
||
|
|
Bool bool
|
||
|
|
Int int
|
||
|
|
Int8 int8
|
||
|
|
Int16 int16
|
||
|
|
Int32 int32
|
||
|
|
Int64 int64
|
||
|
|
Uint uint
|
||
|
|
Uint8 uint8
|
||
|
|
Uint16 uint16
|
||
|
|
Uint32 uint32
|
||
|
|
Uint64 uint64
|
||
|
|
Uintptr uintptr
|
||
|
|
Float32 float32
|
||
|
|
Float64 float64
|
||
|
|
|
||
|
|
Foo string `json:"bar"`
|
||
|
|
Foo2 string `json:"bar2,dummyopt"`
|
||
|
|
|
||
|
|
IntStr int64 `json:",string"`
|
||
|
|
UintptrStr uintptr `json:",string"`
|
||
|
|
|
||
|
|
PBool *bool
|
||
|
|
PInt *int
|
||
|
|
PInt8 *int8
|
||
|
|
PInt16 *int16
|
||
|
|
PInt32 *int32
|
||
|
|
PInt64 *int64
|
||
|
|
PUint *uint
|
||
|
|
PUint8 *uint8
|
||
|
|
PUint16 *uint16
|
||
|
|
PUint32 *uint32
|
||
|
|
PUint64 *uint64
|
||
|
|
PUintptr *uintptr
|
||
|
|
PFloat32 *float32
|
||
|
|
PFloat64 *float64
|
||
|
|
|
||
|
|
String string
|
||
|
|
PString *string
|
||
|
|
|
||
|
|
Map map[string]Small
|
||
|
|
MapP map[string]*Small
|
||
|
|
PMap *map[string]Small
|
||
|
|
PMapP *map[string]*Small
|
||
|
|
|
||
|
|
EmptyMap map[string]Small
|
||
|
|
NilMap map[string]Small
|
||
|
|
|
||
|
|
Slice []Small
|
||
|
|
SliceP []*Small
|
||
|
|
PSlice *[]Small
|
||
|
|
PSliceP *[]*Small
|
||
|
|
|
||
|
|
EmptySlice []Small
|
||
|
|
NilSlice []Small
|
||
|
|
|
||
|
|
StringSlice []string
|
||
|
|
ByteSlice []byte
|
||
|
|
|
||
|
|
Small Small
|
||
|
|
PSmall *Small
|
||
|
|
PPSmall **Small
|
||
|
|
|
||
|
|
Interface any
|
||
|
|
PInterface *any
|
||
|
|
|
||
|
|
unexported int
|
||
|
|
}
|
||
|
|
|
||
|
|
type Small struct {
|
||
|
|
Tag string
|
||
|
|
}
|
||
|
|
|
||
|
|
var allValue = All{
|
||
|
|
Bool: true,
|
||
|
|
Int: 2,
|
||
|
|
Int8: 3,
|
||
|
|
Int16: 4,
|
||
|
|
Int32: 5,
|
||
|
|
Int64: 6,
|
||
|
|
Uint: 7,
|
||
|
|
Uint8: 8,
|
||
|
|
Uint16: 9,
|
||
|
|
Uint32: 10,
|
||
|
|
Uint64: 11,
|
||
|
|
Uintptr: 12,
|
||
|
|
Float32: 14.1,
|
||
|
|
Float64: 15.1,
|
||
|
|
Foo: "foo",
|
||
|
|
Foo2: "foo2",
|
||
|
|
IntStr: 42,
|
||
|
|
UintptrStr: 44,
|
||
|
|
String: "16",
|
||
|
|
Map: map[string]Small{
|
||
|
|
"17": {Tag: "tag17"},
|
||
|
|
"18": {Tag: "tag18"},
|
||
|
|
},
|
||
|
|
MapP: map[string]*Small{
|
||
|
|
"19": {Tag: "tag19"},
|
||
|
|
"20": nil,
|
||
|
|
},
|
||
|
|
EmptyMap: map[string]Small{},
|
||
|
|
Slice: []Small{{Tag: "tag20"}, {Tag: "tag21"}},
|
||
|
|
SliceP: []*Small{{Tag: "tag22"}, nil, {Tag: "tag23"}},
|
||
|
|
EmptySlice: []Small{},
|
||
|
|
StringSlice: []string{"str24", "str25", "str26"},
|
||
|
|
ByteSlice: []byte{27, 28, 29},
|
||
|
|
Small: Small{Tag: "tag30"},
|
||
|
|
PSmall: &Small{Tag: "tag31"},
|
||
|
|
Interface: 5.2,
|
||
|
|
}
|
||
|
|
|
||
|
|
var pallValue = All{
|
||
|
|
PBool: &allValue.Bool,
|
||
|
|
PInt: &allValue.Int,
|
||
|
|
PInt8: &allValue.Int8,
|
||
|
|
PInt16: &allValue.Int16,
|
||
|
|
PInt32: &allValue.Int32,
|
||
|
|
PInt64: &allValue.Int64,
|
||
|
|
PUint: &allValue.Uint,
|
||
|
|
PUint8: &allValue.Uint8,
|
||
|
|
PUint16: &allValue.Uint16,
|
||
|
|
PUint32: &allValue.Uint32,
|
||
|
|
PUint64: &allValue.Uint64,
|
||
|
|
PUintptr: &allValue.Uintptr,
|
||
|
|
PFloat32: &allValue.Float32,
|
||
|
|
PFloat64: &allValue.Float64,
|
||
|
|
PString: &allValue.String,
|
||
|
|
PMap: &allValue.Map,
|
||
|
|
PMapP: &allValue.MapP,
|
||
|
|
PSlice: &allValue.Slice,
|
||
|
|
PSliceP: &allValue.SliceP,
|
||
|
|
PPSmall: &allValue.PSmall,
|
||
|
|
PInterface: &allValue.Interface,
|
||
|
|
}
|
||
|
|
|
||
|
|
var allValueIndent = `{
|
||
|
|
"Bool": true,
|
||
|
|
"Int": 2,
|
||
|
|
"Int8": 3,
|
||
|
|
"Int16": 4,
|
||
|
|
"Int32": 5,
|
||
|
|
"Int64": 6,
|
||
|
|
"Uint": 7,
|
||
|
|
"Uint8": 8,
|
||
|
|
"Uint16": 9,
|
||
|
|
"Uint32": 10,
|
||
|
|
"Uint64": 11,
|
||
|
|
"Uintptr": 12,
|
||
|
|
"Float32": 14.1,
|
||
|
|
"Float64": 15.1,
|
||
|
|
"bar": "foo",
|
||
|
|
"bar2": "foo2",
|
||
|
|
"IntStr": "42",
|
||
|
|
"UintptrStr": "44",
|
||
|
|
"PBool": null,
|
||
|
|
"PInt": null,
|
||
|
|
"PInt8": null,
|
||
|
|
"PInt16": null,
|
||
|
|
"PInt32": null,
|
||
|
|
"PInt64": null,
|
||
|
|
"PUint": null,
|
||
|
|
"PUint8": null,
|
||
|
|
"PUint16": null,
|
||
|
|
"PUint32": null,
|
||
|
|
"PUint64": null,
|
||
|
|
"PUintptr": null,
|
||
|
|
"PFloat32": null,
|
||
|
|
"PFloat64": null,
|
||
|
|
"String": "16",
|
||
|
|
"PString": null,
|
||
|
|
"Map": {
|
||
|
|
"17": {
|
||
|
|
"Tag": "tag17"
|
||
|
|
},
|
||
|
|
"18": {
|
||
|
|
"Tag": "tag18"
|
||
|
|
}
|
||
|
|
},
|
||
|
|
"MapP": {
|
||
|
|
"19": {
|
||
|
|
"Tag": "tag19"
|
||
|
|
},
|
||
|
|
"20": null
|
||
|
|
},
|
||
|
|
"PMap": null,
|
||
|
|
"PMapP": null,
|
||
|
|
"EmptyMap": {},
|
||
|
|
"NilMap": null,
|
||
|
|
"Slice": [
|
||
|
|
{
|
||
|
|
"Tag": "tag20"
|
||
|
|
},
|
||
|
|
{
|
||
|
|
"Tag": "tag21"
|
||
|
|
}
|
||
|
|
],
|
||
|
|
"SliceP": [
|
||
|
|
{
|
||
|
|
"Tag": "tag22"
|
||
|
|
},
|
||
|
|
null,
|
||
|
|
{
|
||
|
|
"Tag": "tag23"
|
||
|
|
}
|
||
|
|
],
|
||
|
|
"PSlice": null,
|
||
|
|
"PSliceP": null,
|
||
|
|
"EmptySlice": [],
|
||
|
|
"NilSlice": null,
|
||
|
|
"StringSlice": [
|
||
|
|
"str24",
|
||
|
|
"str25",
|
||
|
|
"str26"
|
||
|
|
],
|
||
|
|
"ByteSlice": "Gxwd",
|
||
|
|
"Small": {
|
||
|
|
"Tag": "tag30"
|
||
|
|
},
|
||
|
|
"PSmall": {
|
||
|
|
"Tag": "tag31"
|
||
|
|
},
|
||
|
|
"PPSmall": null,
|
||
|
|
"Interface": 5.2,
|
||
|
|
"PInterface": null
|
||
|
|
}`
|
||
|
|
|
||
|
|
var allValueCompact = strings.Map(noSpace, allValueIndent)
|
||
|
|
|
||
|
|
var pallValueIndent = `{
|
||
|
|
"Bool": false,
|
||
|
|
"Int": 0,
|
||
|
|
"Int8": 0,
|
||
|
|
"Int16": 0,
|
||
|
|
"Int32": 0,
|
||
|
|
"Int64": 0,
|
||
|
|
"Uint": 0,
|
||
|
|
"Uint8": 0,
|
||
|
|
"Uint16": 0,
|
||
|
|
"Uint32": 0,
|
||
|
|
"Uint64": 0,
|
||
|
|
"Uintptr": 0,
|
||
|
|
"Float32": 0,
|
||
|
|
"Float64": 0,
|
||
|
|
"bar": "",
|
||
|
|
"bar2": "",
|
||
|
|
"IntStr": "0",
|
||
|
|
"UintptrStr": "0",
|
||
|
|
"PBool": true,
|
||
|
|
"PInt": 2,
|
||
|
|
"PInt8": 3,
|
||
|
|
"PInt16": 4,
|
||
|
|
"PInt32": 5,
|
||
|
|
"PInt64": 6,
|
||
|
|
"PUint": 7,
|
||
|
|
"PUint8": 8,
|
||
|
|
"PUint16": 9,
|
||
|
|
"PUint32": 10,
|
||
|
|
"PUint64": 11,
|
||
|
|
"PUintptr": 12,
|
||
|
|
"PFloat32": 14.1,
|
||
|
|
"PFloat64": 15.1,
|
||
|
|
"String": "",
|
||
|
|
"PString": "16",
|
||
|
|
"Map": null,
|
||
|
|
"MapP": null,
|
||
|
|
"PMap": {
|
||
|
|
"17": {
|
||
|
|
"Tag": "tag17"
|
||
|
|
},
|
||
|
|
"18": {
|
||
|
|
"Tag": "tag18"
|
||
|
|
}
|
||
|
|
},
|
||
|
|
"PMapP": {
|
||
|
|
"19": {
|
||
|
|
"Tag": "tag19"
|
||
|
|
},
|
||
|
|
"20": null
|
||
|
|
},
|
||
|
|
"EmptyMap": null,
|
||
|
|
"NilMap": null,
|
||
|
|
"Slice": null,
|
||
|
|
"SliceP": null,
|
||
|
|
"PSlice": [
|
||
|
|
{
|
||
|
|
"Tag": "tag20"
|
||
|
|
},
|
||
|
|
{
|
||
|
|
"Tag": "tag21"
|
||
|
|
}
|
||
|
|
],
|
||
|
|
"PSliceP": [
|
||
|
|
{
|
||
|
|
"Tag": "tag22"
|
||
|
|
},
|
||
|
|
null,
|
||
|
|
{
|
||
|
|
"Tag": "tag23"
|
||
|
|
}
|
||
|
|
],
|
||
|
|
"EmptySlice": null,
|
||
|
|
"NilSlice": null,
|
||
|
|
"StringSlice": null,
|
||
|
|
"ByteSlice": null,
|
||
|
|
"Small": {
|
||
|
|
"Tag": ""
|
||
|
|
},
|
||
|
|
"PSmall": null,
|
||
|
|
"PPSmall": {
|
||
|
|
"Tag": "tag31"
|
||
|
|
},
|
||
|
|
"Interface": null,
|
||
|
|
"PInterface": 5.2
|
||
|
|
}`
|
||
|
|
|
||
|
|
var pallValueCompact = strings.Map(noSpace, pallValueIndent)
|
||
|
|
|
||
|
|
func TestRefUnmarshal(t *testing.T) {
|
||
|
|
type S struct {
|
||
|
|
// Ref is defined in encode_test.go.
|
||
|
|
R0 Ref
|
||
|
|
R1 *Ref
|
||
|
|
R2 RefText
|
||
|
|
R3 *RefText
|
||
|
|
}
|
||
|
|
want := S{
|
||
|
|
R0: 12,
|
||
|
|
R1: new(Ref),
|
||
|
|
R2: 13,
|
||
|
|
R3: new(RefText),
|
||
|
|
}
|
||
|
|
*want.R1 = 12
|
||
|
|
*want.R3 = 13
|
||
|
|
|
||
|
|
var got S
|
||
|
|
if err := Unmarshal([]byte(`{"R0":"ref","R1":"ref","R2":"ref","R3":"ref"}`), &got); err != nil {
|
||
|
|
t.Fatalf("Unmarshal: %v", err)
|
||
|
|
}
|
||
|
|
if !reflect.DeepEqual(got, want) {
|
||
|
|
t.Errorf("got %+v, want %+v", got, want)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Test that the empty string doesn't panic decoding when ,string is specified
|
||
|
|
// Issue 3450
|
||
|
|
func TestEmptyString(t *testing.T) {
|
||
|
|
type T2 struct {
|
||
|
|
Number1 int `json:",string"`
|
||
|
|
Number2 int `json:",string"`
|
||
|
|
}
|
||
|
|
data := `{"Number1":"1", "Number2":""}`
|
||
|
|
dec := NewDecoder(strings.NewReader(data))
|
||
|
|
var t2 T2
|
||
|
|
err := dec.Decode(&t2)
|
||
|
|
if err == nil {
|
||
|
|
t.Fatal("Decode: did not return error")
|
||
|
|
}
|
||
|
|
if t2.Number1 != 1 {
|
||
|
|
t.Fatal("Decode: did not set Number1")
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Test that a null for ,string is not replaced with the previous quoted string (issue 7046).
|
||
|
|
// It should also not be an error (issue 2540, issue 8587).
|
||
|
|
func TestNullString(t *testing.T) {
|
||
|
|
type T struct {
|
||
|
|
A int `json:",string"`
|
||
|
|
B int `json:",string"`
|
||
|
|
C *int `json:",string"`
|
||
|
|
}
|
||
|
|
data := []byte(`{"A": "1", "B": null, "C": null}`)
|
||
|
|
var s T
|
||
|
|
s.B = 1
|
||
|
|
s.C = new(int)
|
||
|
|
*s.C = 2
|
||
|
|
err := Unmarshal(data, &s)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Unmarshal: %v", err)
|
||
|
|
}
|
||
|
|
if s.B != 1 || s.C != nil {
|
||
|
|
t.Fatalf("after Unmarshal, s.B=%d, s.C=%p, want 1, nil", s.B, s.C)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func intp(x int) *int {
|
||
|
|
p := new(int)
|
||
|
|
*p = x
|
||
|
|
return p
|
||
|
|
}
|
||
|
|
|
||
|
|
func intpp(x *int) **int {
|
||
|
|
pp := new(*int)
|
||
|
|
*pp = x
|
||
|
|
return pp
|
||
|
|
}
|
||
|
|
|
||
|
|
var interfaceSetTests = []struct {
|
||
|
|
pre any
|
||
|
|
json string
|
||
|
|
post any
|
||
|
|
}{
|
||
|
|
{"foo", `"bar"`, "bar"},
|
||
|
|
{"foo", `2`, 2.0},
|
||
|
|
{"foo", `true`, true},
|
||
|
|
{"foo", `null`, nil},
|
||
|
|
|
||
|
|
{nil, `null`, nil},
|
||
|
|
{new(int), `null`, nil},
|
||
|
|
{(*int)(nil), `null`, nil},
|
||
|
|
{new(*int), `null`, new(*int)},
|
||
|
|
{(**int)(nil), `null`, nil},
|
||
|
|
{intp(1), `null`, nil},
|
||
|
|
{intpp(nil), `null`, intpp(nil)},
|
||
|
|
{intpp(intp(1)), `null`, intpp(nil)},
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestInterfaceSet(t *testing.T) {
|
||
|
|
for _, tt := range interfaceSetTests {
|
||
|
|
b := struct{ X any }{tt.pre}
|
||
|
|
blob := `{"X":` + tt.json + `}`
|
||
|
|
if err := Unmarshal([]byte(blob), &b); err != nil {
|
||
|
|
t.Errorf("Unmarshal %#q: %v", blob, err)
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
if !reflect.DeepEqual(b.X, tt.post) {
|
||
|
|
t.Errorf("Unmarshal %#q into %#v: X=%#v, want %#v", blob, tt.pre, b.X, tt.post)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
type NullTest struct {
|
||
|
|
Bool bool
|
||
|
|
Int int
|
||
|
|
Int8 int8
|
||
|
|
Int16 int16
|
||
|
|
Int32 int32
|
||
|
|
Int64 int64
|
||
|
|
Uint uint
|
||
|
|
Uint8 uint8
|
||
|
|
Uint16 uint16
|
||
|
|
Uint32 uint32
|
||
|
|
Uint64 uint64
|
||
|
|
Float32 float32
|
||
|
|
Float64 float64
|
||
|
|
String string
|
||
|
|
PBool *bool
|
||
|
|
Map map[string]string
|
||
|
|
Slice []string
|
||
|
|
Interface any
|
||
|
|
|
||
|
|
PRaw *RawMessage
|
||
|
|
PTime *time.Time
|
||
|
|
PBigInt *big.Int
|
||
|
|
PText *MustNotUnmarshalText
|
||
|
|
PBuffer *bytes.Buffer // has methods, just not relevant ones
|
||
|
|
PStruct *struct{}
|
||
|
|
|
||
|
|
Raw RawMessage
|
||
|
|
Time time.Time
|
||
|
|
BigInt big.Int
|
||
|
|
Text MustNotUnmarshalText
|
||
|
|
Buffer bytes.Buffer
|
||
|
|
Struct struct{}
|
||
|
|
}
|
||
|
|
|
||
|
|
// JSON null values should be ignored for primitives and string values instead of resulting in an error.
|
||
|
|
// Issue 2540
|
||
|
|
func TestUnmarshalNulls(t *testing.T) {
|
||
|
|
// Unmarshal docs:
|
||
|
|
// The JSON null value unmarshals into an interface, map, pointer, or slice
|
||
|
|
// by setting that Go value to nil. Because null is often used in JSON to mean
|
||
|
|
// ``not present,'' unmarshaling a JSON null into any other Go type has no effect
|
||
|
|
// on the value and produces no error.
|
||
|
|
|
||
|
|
jsonData := []byte(`{
|
||
|
|
"Bool" : null,
|
||
|
|
"Int" : null,
|
||
|
|
"Int8" : null,
|
||
|
|
"Int16" : null,
|
||
|
|
"Int32" : null,
|
||
|
|
"Int64" : null,
|
||
|
|
"Uint" : null,
|
||
|
|
"Uint8" : null,
|
||
|
|
"Uint16" : null,
|
||
|
|
"Uint32" : null,
|
||
|
|
"Uint64" : null,
|
||
|
|
"Float32" : null,
|
||
|
|
"Float64" : null,
|
||
|
|
"String" : null,
|
||
|
|
"PBool": null,
|
||
|
|
"Map": null,
|
||
|
|
"Slice": null,
|
||
|
|
"Interface": null,
|
||
|
|
"PRaw": null,
|
||
|
|
"PTime": null,
|
||
|
|
"PBigInt": null,
|
||
|
|
"PText": null,
|
||
|
|
"PBuffer": null,
|
||
|
|
"PStruct": null,
|
||
|
|
"Raw": null,
|
||
|
|
"Time": null,
|
||
|
|
"BigInt": null,
|
||
|
|
"Text": null,
|
||
|
|
"Buffer": null,
|
||
|
|
"Struct": null
|
||
|
|
}`)
|
||
|
|
nulls := NullTest{
|
||
|
|
Bool: true,
|
||
|
|
Int: 2,
|
||
|
|
Int8: 3,
|
||
|
|
Int16: 4,
|
||
|
|
Int32: 5,
|
||
|
|
Int64: 6,
|
||
|
|
Uint: 7,
|
||
|
|
Uint8: 8,
|
||
|
|
Uint16: 9,
|
||
|
|
Uint32: 10,
|
||
|
|
Uint64: 11,
|
||
|
|
Float32: 12.1,
|
||
|
|
Float64: 13.1,
|
||
|
|
String: "14",
|
||
|
|
PBool: new(bool),
|
||
|
|
Map: map[string]string{},
|
||
|
|
Slice: []string{},
|
||
|
|
Interface: new(MustNotUnmarshalJSON),
|
||
|
|
PRaw: new(RawMessage),
|
||
|
|
PTime: new(time.Time),
|
||
|
|
PBigInt: new(big.Int),
|
||
|
|
PText: new(MustNotUnmarshalText),
|
||
|
|
PStruct: new(struct{}),
|
||
|
|
PBuffer: new(bytes.Buffer),
|
||
|
|
Raw: RawMessage("123"),
|
||
|
|
Time: time.Unix(123456789, 0),
|
||
|
|
BigInt: *big.NewInt(123),
|
||
|
|
}
|
||
|
|
|
||
|
|
before := nulls.Time.String()
|
||
|
|
|
||
|
|
err := Unmarshal(jsonData, &nulls)
|
||
|
|
if err != nil {
|
||
|
|
t.Errorf("Unmarshal of null values failed: %v", err)
|
||
|
|
}
|
||
|
|
if !nulls.Bool || nulls.Int != 2 || nulls.Int8 != 3 || nulls.Int16 != 4 || nulls.Int32 != 5 || nulls.Int64 != 6 ||
|
||
|
|
nulls.Uint != 7 || nulls.Uint8 != 8 || nulls.Uint16 != 9 || nulls.Uint32 != 10 || nulls.Uint64 != 11 ||
|
||
|
|
nulls.Float32 != 12.1 || nulls.Float64 != 13.1 || nulls.String != "14" {
|
||
|
|
t.Errorf("Unmarshal of null values affected primitives")
|
||
|
|
}
|
||
|
|
|
||
|
|
if nulls.PBool != nil {
|
||
|
|
t.Errorf("Unmarshal of null did not clear nulls.PBool")
|
||
|
|
}
|
||
|
|
if nulls.Map != nil {
|
||
|
|
t.Errorf("Unmarshal of null did not clear nulls.Map")
|
||
|
|
}
|
||
|
|
if nulls.Slice != nil {
|
||
|
|
t.Errorf("Unmarshal of null did not clear nulls.Slice")
|
||
|
|
}
|
||
|
|
if nulls.Interface != nil {
|
||
|
|
t.Errorf("Unmarshal of null did not clear nulls.Interface")
|
||
|
|
}
|
||
|
|
if nulls.PRaw != nil {
|
||
|
|
t.Errorf("Unmarshal of null did not clear nulls.PRaw")
|
||
|
|
}
|
||
|
|
if nulls.PTime != nil {
|
||
|
|
t.Errorf("Unmarshal of null did not clear nulls.PTime")
|
||
|
|
}
|
||
|
|
if nulls.PBigInt != nil {
|
||
|
|
t.Errorf("Unmarshal of null did not clear nulls.PBigInt")
|
||
|
|
}
|
||
|
|
if nulls.PText != nil {
|
||
|
|
t.Errorf("Unmarshal of null did not clear nulls.PText")
|
||
|
|
}
|
||
|
|
if nulls.PBuffer != nil {
|
||
|
|
t.Errorf("Unmarshal of null did not clear nulls.PBuffer")
|
||
|
|
}
|
||
|
|
if nulls.PStruct != nil {
|
||
|
|
t.Errorf("Unmarshal of null did not clear nulls.PStruct")
|
||
|
|
}
|
||
|
|
|
||
|
|
if string(nulls.Raw) != "null" {
|
||
|
|
t.Errorf("Unmarshal of RawMessage null did not record null: %v", string(nulls.Raw))
|
||
|
|
}
|
||
|
|
if nulls.Time.String() != before {
|
||
|
|
t.Errorf("Unmarshal of time.Time null set time to %v", nulls.Time.String())
|
||
|
|
}
|
||
|
|
if nulls.BigInt.String() != "123" {
|
||
|
|
t.Errorf("Unmarshal of big.Int null set int to %v", nulls.BigInt.String())
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
type MustNotUnmarshalJSON struct{}
|
||
|
|
|
||
|
|
func (x MustNotUnmarshalJSON) UnmarshalJSON(data []byte) error {
|
||
|
|
return errors.New("MustNotUnmarshalJSON was used")
|
||
|
|
}
|
||
|
|
|
||
|
|
type MustNotUnmarshalText struct{}
|
||
|
|
|
||
|
|
func (x MustNotUnmarshalText) UnmarshalText(text []byte) error {
|
||
|
|
return errors.New("MustNotUnmarshalText was used")
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestStringKind(t *testing.T) {
|
||
|
|
type stringKind string
|
||
|
|
|
||
|
|
var m1, m2 map[stringKind]int
|
||
|
|
m1 = map[stringKind]int{
|
||
|
|
"foo": 42,
|
||
|
|
}
|
||
|
|
|
||
|
|
data, err := Marshal(m1)
|
||
|
|
if err != nil {
|
||
|
|
t.Errorf("Unexpected error marshaling: %v", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
err = Unmarshal(data, &m2)
|
||
|
|
if err != nil {
|
||
|
|
t.Errorf("Unexpected error unmarshaling: %v", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
if !reflect.DeepEqual(m1, m2) {
|
||
|
|
t.Error("Items should be equal after encoding and then decoding")
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Custom types with []byte as underlying type could not be marshaled
|
||
|
|
// and then unmarshaled.
|
||
|
|
// Issue 8962.
|
||
|
|
func TestByteKind(t *testing.T) {
|
||
|
|
type byteKind []byte
|
||
|
|
|
||
|
|
a := byteKind("hello")
|
||
|
|
|
||
|
|
data, err := Marshal(a)
|
||
|
|
if err != nil {
|
||
|
|
t.Error(err)
|
||
|
|
}
|
||
|
|
var b byteKind
|
||
|
|
err = Unmarshal(data, &b)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
if !reflect.DeepEqual(a, b) {
|
||
|
|
t.Errorf("expected %v == %v", a, b)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// The fix for issue 8962 introduced a regression.
|
||
|
|
// Issue 12921.
|
||
|
|
func TestSliceOfCustomByte(t *testing.T) {
|
||
|
|
type Uint8 uint8
|
||
|
|
|
||
|
|
a := []Uint8("hello")
|
||
|
|
|
||
|
|
data, err := Marshal(a)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
var b []Uint8
|
||
|
|
err = Unmarshal(data, &b)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
if !reflect.DeepEqual(a, b) {
|
||
|
|
t.Fatalf("expected %v == %v", a, b)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var decodeTypeErrorTests = []struct {
|
||
|
|
dest any
|
||
|
|
src string
|
||
|
|
}{
|
||
|
|
{new(string), `{"user": "name"}`}, // issue 4628.
|
||
|
|
{new(error), `{}`}, // issue 4222
|
||
|
|
{new(error), `[]`},
|
||
|
|
{new(error), `""`},
|
||
|
|
{new(error), `123`},
|
||
|
|
{new(error), `true`},
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestUnmarshalTypeError(t *testing.T) {
|
||
|
|
for _, item := range decodeTypeErrorTests {
|
||
|
|
err := Unmarshal([]byte(item.src), item.dest)
|
||
|
|
if _, ok := err.(*UnmarshalTypeError); !ok {
|
||
|
|
t.Errorf("expected type error for Unmarshal(%q, type %T): got %T",
|
||
|
|
item.src, item.dest, err)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var unmarshalSyntaxTests = []string{
|
||
|
|
"tru",
|
||
|
|
"fals",
|
||
|
|
"nul",
|
||
|
|
"123e",
|
||
|
|
`"hello`,
|
||
|
|
`[1,2,3`,
|
||
|
|
`{"key":1`,
|
||
|
|
`{"key":1,`,
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestUnmarshalSyntax(t *testing.T) {
|
||
|
|
var x any
|
||
|
|
for _, src := range unmarshalSyntaxTests {
|
||
|
|
err := Unmarshal([]byte(src), &x)
|
||
|
|
if _, ok := err.(*SyntaxError); !ok {
|
||
|
|
t.Errorf("expected syntax error for Unmarshal(%q): got %T", src, err)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Test handling of unexported fields that should be ignored.
|
||
|
|
// Issue 4660
|
||
|
|
type unexportedFields struct {
|
||
|
|
Name string
|
||
|
|
m map[string]any `json:"-"`
|
||
|
|
m2 map[string]any `json:"abcd"`
|
||
|
|
|
||
|
|
s []int `json:"-"`
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestUnmarshalUnexported(t *testing.T) {
|
||
|
|
input := `{"Name": "Bob", "m": {"x": 123}, "m2": {"y": 456}, "abcd": {"z": 789}, "s": [2, 3]}`
|
||
|
|
want := &unexportedFields{Name: "Bob"}
|
||
|
|
|
||
|
|
out := &unexportedFields{}
|
||
|
|
err := Unmarshal([]byte(input), out)
|
||
|
|
if err != nil {
|
||
|
|
t.Errorf("got error %v, expected nil", err)
|
||
|
|
}
|
||
|
|
if !reflect.DeepEqual(out, want) {
|
||
|
|
t.Errorf("got %q, want %q", out, want)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Time3339 is a time.Time which encodes to and from JSON
|
||
|
|
// as an RFC 3339 time in UTC.
|
||
|
|
type Time3339 time.Time
|
||
|
|
|
||
|
|
func (t *Time3339) UnmarshalJSON(b []byte) error {
|
||
|
|
if len(b) < 2 || b[0] != '"' || b[len(b)-1] != '"' {
|
||
|
|
return fmt.Errorf("types: failed to unmarshal non-string value %q as an RFC 3339 time", b)
|
||
|
|
}
|
||
|
|
tm, err := time.Parse(time.RFC3339, string(b[1:len(b)-1]))
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
*t = Time3339(tm)
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestUnmarshalJSONLiteralError(t *testing.T) {
|
||
|
|
var t3 Time3339
|
||
|
|
err := Unmarshal([]byte(`"0000-00-00T00:00:00Z"`), &t3)
|
||
|
|
if err == nil {
|
||
|
|
t.Fatalf("expected error; got time %v", time.Time(t3))
|
||
|
|
}
|
||
|
|
if !strings.Contains(err.Error(), "range") {
|
||
|
|
t.Errorf("got err = %v; want out of range error", err)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Test that extra object elements in an array do not result in a
|
||
|
|
// "data changing underfoot" error.
|
||
|
|
// Issue 3717
|
||
|
|
func TestSkipArrayObjects(t *testing.T) {
|
||
|
|
json := `[{}]`
|
||
|
|
var dest [0]any
|
||
|
|
|
||
|
|
err := Unmarshal([]byte(json), &dest)
|
||
|
|
if err != nil {
|
||
|
|
t.Errorf("got error %q, want nil", err)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Test semantics of pre-filled data, such as struct fields, map elements,
|
||
|
|
// slices, and arrays.
|
||
|
|
// Issues 4900 and 8837, among others.
|
||
|
|
func TestPrefilled(t *testing.T) {
|
||
|
|
// Values here change, cannot reuse table across runs.
|
||
|
|
var prefillTests = []struct {
|
||
|
|
in string
|
||
|
|
ptr any
|
||
|
|
out any
|
||
|
|
}{
|
||
|
|
{
|
||
|
|
in: `{"X": 1, "Y": 2}`,
|
||
|
|
ptr: &XYZ{X: float32(3), Y: int16(4), Z: 1.5},
|
||
|
|
out: &XYZ{X: float64(1), Y: float64(2), Z: 1.5},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `{"X": 1, "Y": 2}`,
|
||
|
|
ptr: &map[string]any{"X": float32(3), "Y": int16(4), "Z": 1.5},
|
||
|
|
out: &map[string]any{"X": float64(1), "Y": float64(2), "Z": 1.5},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `[2]`,
|
||
|
|
ptr: &[]int{1},
|
||
|
|
out: &[]int{2},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `[2, 3]`,
|
||
|
|
ptr: &[]int{1},
|
||
|
|
out: &[]int{2, 3},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `[2, 3]`,
|
||
|
|
ptr: &[...]int{1},
|
||
|
|
out: &[...]int{2},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
in: `[3]`,
|
||
|
|
ptr: &[...]int{1, 2},
|
||
|
|
out: &[...]int{3, 0},
|
||
|
|
},
|
||
|
|
}
|
||
|
|
|
||
|
|
for _, tt := range prefillTests {
|
||
|
|
ptrstr := fmt.Sprintf("%v", tt.ptr)
|
||
|
|
err := Unmarshal([]byte(tt.in), tt.ptr) // tt.ptr edited here
|
||
|
|
if err != nil {
|
||
|
|
t.Errorf("Unmarshal: %v", err)
|
||
|
|
}
|
||
|
|
if !reflect.DeepEqual(tt.ptr, tt.out) {
|
||
|
|
t.Errorf("Unmarshal(%#q, %s): have %v, want %v", tt.in, ptrstr, tt.ptr, tt.out)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var invalidUnmarshalTests = []struct {
|
||
|
|
v any
|
||
|
|
want string
|
||
|
|
}{
|
||
|
|
{nil, "json: Unmarshal(nil)"},
|
||
|
|
{struct{}{}, "json: Unmarshal(non-pointer struct {})"},
|
||
|
|
{(*int)(nil), "json: Unmarshal(nil *int)"},
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestInvalidUnmarshal(t *testing.T) {
|
||
|
|
buf := []byte(`{"a":"1"}`)
|
||
|
|
for _, tt := range invalidUnmarshalTests {
|
||
|
|
err := Unmarshal(buf, tt.v)
|
||
|
|
if err == nil {
|
||
|
|
t.Errorf("Unmarshal expecting error, got nil")
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
if got := err.Error(); got != tt.want {
|
||
|
|
t.Errorf("Unmarshal = %q; want %q", got, tt.want)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var invalidUnmarshalTextTests = []struct {
|
||
|
|
v any
|
||
|
|
want string
|
||
|
|
}{
|
||
|
|
{nil, "json: Unmarshal(nil)"},
|
||
|
|
{struct{}{}, "json: Unmarshal(non-pointer struct {})"},
|
||
|
|
{(*int)(nil), "json: Unmarshal(nil *int)"},
|
||
|
|
{new(net.IP), "json: cannot unmarshal number into Go value of type *net.IP"},
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestInvalidUnmarshalText(t *testing.T) {
|
||
|
|
buf := []byte(`123`)
|
||
|
|
for _, tt := range invalidUnmarshalTextTests {
|
||
|
|
err := Unmarshal(buf, tt.v)
|
||
|
|
if err == nil {
|
||
|
|
t.Errorf("Unmarshal expecting error, got nil")
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
if got := err.Error(); got != tt.want {
|
||
|
|
t.Errorf("Unmarshal = %q; want %q", got, tt.want)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Test that string option is ignored for invalid types.
|
||
|
|
// Issue 9812.
|
||
|
|
func TestInvalidStringOption(t *testing.T) {
|
||
|
|
num := 0
|
||
|
|
item := struct {
|
||
|
|
T time.Time `json:",string"`
|
||
|
|
M map[string]string `json:",string"`
|
||
|
|
S []string `json:",string"`
|
||
|
|
A [1]string `json:",string"`
|
||
|
|
I any `json:",string"`
|
||
|
|
P *int `json:",string"`
|
||
|
|
}{M: make(map[string]string), S: make([]string, 0), I: num, P: &num}
|
||
|
|
|
||
|
|
data, err := Marshal(item)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Marshal: %v", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
err = Unmarshal(data, &item)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Unmarshal: %v", err)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Test unmarshal behavior with regards to embedded unexported structs.
|
||
|
|
//
|
||
|
|
// (Issue 21357) If the embedded struct is a pointer and is unallocated,
|
||
|
|
// this returns an error because unmarshal cannot set the field.
|
||
|
|
//
|
||
|
|
// (Issue 24152) If the embedded struct is given an explicit name,
|
||
|
|
// ensure that the normal unmarshal logic does not panic in reflect.
|
||
|
|
//
|
||
|
|
// (Issue 28145) If the embedded struct is given an explicit name and has
|
||
|
|
// exported methods, don't cause a panic trying to get its value.
|
||
|
|
func TestUnmarshalEmbeddedUnexported(t *testing.T) {
|
||
|
|
type (
|
||
|
|
embed1 struct{ Q int }
|
||
|
|
embed2 struct{ Q int }
|
||
|
|
embed3 struct {
|
||
|
|
Q int64 `json:",string"`
|
||
|
|
}
|
||
|
|
S1 struct {
|
||
|
|
*embed1
|
||
|
|
R int
|
||
|
|
}
|
||
|
|
S2 struct {
|
||
|
|
*embed1
|
||
|
|
Q int
|
||
|
|
}
|
||
|
|
S3 struct {
|
||
|
|
embed1
|
||
|
|
R int
|
||
|
|
}
|
||
|
|
S4 struct {
|
||
|
|
*embed1
|
||
|
|
embed2
|
||
|
|
}
|
||
|
|
S5 struct {
|
||
|
|
*embed3
|
||
|
|
R int
|
||
|
|
}
|
||
|
|
S6 struct {
|
||
|
|
embed1 `json:"embed1"`
|
||
|
|
}
|
||
|
|
S7 struct {
|
||
|
|
embed1 `json:"embed1"`
|
||
|
|
embed2
|
||
|
|
}
|
||
|
|
S8 struct {
|
||
|
|
embed1 `json:"embed1"`
|
||
|
|
embed2 `json:"embed2"`
|
||
|
|
Q int
|
||
|
|
}
|
||
|
|
S9 struct {
|
||
|
|
unexportedWithMethods `json:"embed"`
|
||
|
|
}
|
||
|
|
)
|
||
|
|
|
||
|
|
tests := []struct {
|
||
|
|
in string
|
||
|
|
ptr any
|
||
|
|
out any
|
||
|
|
err error
|
||
|
|
}{{
|
||
|
|
// Error since we cannot set S1.embed1, but still able to set S1.R.
|
||
|
|
in: `{"R":2,"Q":1}`,
|
||
|
|
ptr: new(S1),
|
||
|
|
out: &S1{R: 2},
|
||
|
|
err: fmt.Errorf("json: cannot set embedded pointer to unexported struct: json.embed1"),
|
||
|
|
}, {
|
||
|
|
// The top level Q field takes precedence.
|
||
|
|
in: `{"Q":1}`,
|
||
|
|
ptr: new(S2),
|
||
|
|
out: &S2{Q: 1},
|
||
|
|
}, {
|
||
|
|
// No issue with non-pointer variant.
|
||
|
|
in: `{"R":2,"Q":1}`,
|
||
|
|
ptr: new(S3),
|
||
|
|
out: &S3{embed1: embed1{Q: 1}, R: 2},
|
||
|
|
}, {
|
||
|
|
// No error since both embedded structs have field R, which annihilate each other.
|
||
|
|
// Thus, no attempt is made at setting S4.embed1.
|
||
|
|
in: `{"R":2}`,
|
||
|
|
ptr: new(S4),
|
||
|
|
out: new(S4),
|
||
|
|
}, {
|
||
|
|
// Error since we cannot set S5.embed1, but still able to set S5.R.
|
||
|
|
in: `{"R":2,"Q":1}`,
|
||
|
|
ptr: new(S5),
|
||
|
|
out: &S5{R: 2},
|
||
|
|
err: fmt.Errorf("json: cannot set embedded pointer to unexported struct: json.embed3"),
|
||
|
|
}, {
|
||
|
|
// Issue 24152, ensure decodeState.indirect does not panic.
|
||
|
|
in: `{"embed1": {"Q": 1}}`,
|
||
|
|
ptr: new(S6),
|
||
|
|
out: &S6{embed1{1}},
|
||
|
|
}, {
|
||
|
|
// Issue 24153, check that we can still set forwarded fields even in
|
||
|
|
// the presence of a name conflict.
|
||
|
|
//
|
||
|
|
// This relies on obscure behavior of reflect where it is possible
|
||
|
|
// to set a forwarded exported field on an unexported embedded struct
|
||
|
|
// even though there is a name conflict, even when it would have been
|
||
|
|
// impossible to do so according to Go visibility rules.
|
||
|
|
// Go forbids this because it is ambiguous whether S7.Q refers to
|
||
|
|
// S7.embed1.Q or S7.embed2.Q. Since embed1 and embed2 are unexported,
|
||
|
|
// it should be impossible for an external package to set either Q.
|
||
|
|
//
|
||
|
|
// It is probably okay for a future reflect change to break this.
|
||
|
|
in: `{"embed1": {"Q": 1}, "Q": 2}`,
|
||
|
|
ptr: new(S7),
|
||
|
|
out: &S7{embed1{1}, embed2{2}},
|
||
|
|
}, {
|
||
|
|
// Issue 24153, similar to the S7 case.
|
||
|
|
in: `{"embed1": {"Q": 1}, "embed2": {"Q": 2}, "Q": 3}`,
|
||
|
|
ptr: new(S8),
|
||
|
|
out: &S8{embed1{1}, embed2{2}, 3},
|
||
|
|
}, {
|
||
|
|
// Issue 228145, similar to the cases above.
|
||
|
|
in: `{"embed": {}}`,
|
||
|
|
ptr: new(S9),
|
||
|
|
out: &S9{},
|
||
|
|
}}
|
||
|
|
|
||
|
|
for i, tt := range tests {
|
||
|
|
err := Unmarshal([]byte(tt.in), tt.ptr)
|
||
|
|
if !equalError(err, tt.err) {
|
||
|
|
t.Errorf("#%d: %v, want %v", i, err, tt.err)
|
||
|
|
}
|
||
|
|
if !reflect.DeepEqual(tt.ptr, tt.out) {
|
||
|
|
t.Errorf("#%d: mismatch\ngot: %#+v\nwant: %#+v", i, tt.ptr, tt.out)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestUnmarshalErrorAfterMultipleJSON(t *testing.T) {
|
||
|
|
tests := []struct {
|
||
|
|
in string
|
||
|
|
err error
|
||
|
|
}{{
|
||
|
|
in: `1 false null :`,
|
||
|
|
err: &SyntaxError{"invalid character ':' looking for beginning of value", 14},
|
||
|
|
}, {
|
||
|
|
in: `1 [] [,]`,
|
||
|
|
err: &SyntaxError{"invalid character ',' looking for beginning of value", 7},
|
||
|
|
}, {
|
||
|
|
in: `1 [] [true:]`,
|
||
|
|
err: &SyntaxError{"invalid character ':' after array element", 11},
|
||
|
|
}, {
|
||
|
|
in: `1 {} {"x"=}`,
|
||
|
|
err: &SyntaxError{"invalid character '=' after object key", 14},
|
||
|
|
}, {
|
||
|
|
in: `falsetruenul#`,
|
||
|
|
err: &SyntaxError{"invalid character '#' in literal null (expecting 'l')", 13},
|
||
|
|
}}
|
||
|
|
for i, tt := range tests {
|
||
|
|
dec := NewDecoder(strings.NewReader(tt.in))
|
||
|
|
var err error
|
||
|
|
for {
|
||
|
|
var v any
|
||
|
|
if err = dec.Decode(&v); err != nil {
|
||
|
|
break
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if !reflect.DeepEqual(err, tt.err) {
|
||
|
|
t.Errorf("#%d: got %#v, want %#v", i, err, tt.err)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
type unmarshalPanic struct{}
|
||
|
|
|
||
|
|
func (unmarshalPanic) UnmarshalJSON([]byte) error { panic(0xdead) }
|
||
|
|
|
||
|
|
func TestUnmarshalPanic(t *testing.T) {
|
||
|
|
defer func() {
|
||
|
|
if got := recover(); !reflect.DeepEqual(got, 0xdead) {
|
||
|
|
t.Errorf("panic() = (%T)(%v), want 0xdead", got, got)
|
||
|
|
}
|
||
|
|
}()
|
||
|
|
Unmarshal([]byte("{}"), &unmarshalPanic{})
|
||
|
|
t.Fatalf("Unmarshal should have panicked")
|
||
|
|
}
|
||
|
|
|
||
|
|
// The decoder used to hang if decoding into an interface pointing to its own address.
|
||
|
|
// See golang.org/issues/31740.
|
||
|
|
func TestUnmarshalRecursivePointer(t *testing.T) {
|
||
|
|
var v any
|
||
|
|
v = &v
|
||
|
|
data := []byte(`{"a": "b"}`)
|
||
|
|
|
||
|
|
if err := Unmarshal(data, v); err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
type textUnmarshalerString string
|
||
|
|
|
||
|
|
func (m *textUnmarshalerString) UnmarshalText(text []byte) error {
|
||
|
|
*m = textUnmarshalerString(strings.ToLower(string(text)))
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// Test unmarshal to a map, where the map key is a user defined type.
|
||
|
|
// See golang.org/issues/34437.
|
||
|
|
func TestUnmarshalMapWithTextUnmarshalerStringKey(t *testing.T) {
|
||
|
|
var p map[textUnmarshalerString]string
|
||
|
|
if err := Unmarshal([]byte(`{"FOO": "1"}`), &p); err != nil {
|
||
|
|
t.Fatalf("Unmarshal unexpected error: %v", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
if _, ok := p["foo"]; !ok {
|
||
|
|
t.Errorf(`Key "foo" does not exist in map: %v`, p)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestUnmarshalRescanLiteralMangledUnquote(t *testing.T) {
|
||
|
|
// See golang.org/issues/38105.
|
||
|
|
var p map[textUnmarshalerString]string
|
||
|
|
if err := Unmarshal([]byte(`{"开源":"12345开源"}`), &p); err != nil {
|
||
|
|
t.Fatalf("Unmarshal unexpected error: %v", err)
|
||
|
|
}
|
||
|
|
if _, ok := p["开源"]; !ok {
|
||
|
|
t.Errorf(`Key "开源" does not exist in map: %v`, p)
|
||
|
|
}
|
||
|
|
|
||
|
|
// See golang.org/issues/38126.
|
||
|
|
type T struct {
|
||
|
|
F1 string `json:"F1,string"`
|
||
|
|
}
|
||
|
|
t1 := T{"aaa\tbbb"}
|
||
|
|
|
||
|
|
b, err := Marshal(t1)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Marshal unexpected error: %v", err)
|
||
|
|
}
|
||
|
|
var t2 T
|
||
|
|
if err := Unmarshal(b, &t2); err != nil {
|
||
|
|
t.Fatalf("Unmarshal unexpected error: %v", err)
|
||
|
|
}
|
||
|
|
if t1 != t2 {
|
||
|
|
t.Errorf("Marshal and Unmarshal roundtrip mismatch: want %q got %q", t1, t2)
|
||
|
|
}
|
||
|
|
|
||
|
|
// See golang.org/issues/39555.
|
||
|
|
input := map[textUnmarshalerString]string{"FOO": "", `"`: ""}
|
||
|
|
|
||
|
|
encoded, err := Marshal(input)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Marshal unexpected error: %v", err)
|
||
|
|
}
|
||
|
|
var got map[textUnmarshalerString]string
|
||
|
|
if err := Unmarshal(encoded, &got); err != nil {
|
||
|
|
t.Fatalf("Unmarshal unexpected error: %v", err)
|
||
|
|
}
|
||
|
|
want := map[textUnmarshalerString]string{"foo": "", `"`: ""}
|
||
|
|
if !reflect.DeepEqual(want, got) {
|
||
|
|
t.Fatalf("Unexpected roundtrip result:\nwant: %q\ngot: %q", want, got)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestUnmarshalMaxDepth(t *testing.T) {
|
||
|
|
testcases := []struct {
|
||
|
|
name string
|
||
|
|
data string
|
||
|
|
errMaxDepth bool
|
||
|
|
}{
|
||
|
|
{
|
||
|
|
name: "ArrayUnderMaxNestingDepth",
|
||
|
|
data: `{"a":` + strings.Repeat(`[`, 10000-1) + strings.Repeat(`]`, 10000-1) + `}`,
|
||
|
|
errMaxDepth: false,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
name: "ArrayOverMaxNestingDepth",
|
||
|
|
data: `{"a":` + strings.Repeat(`[`, 10000) + strings.Repeat(`]`, 10000) + `}`,
|
||
|
|
errMaxDepth: true,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
name: "ArrayOverStackDepth",
|
||
|
|
data: `{"a":` + strings.Repeat(`[`, 3000000) + strings.Repeat(`]`, 3000000) + `}`,
|
||
|
|
errMaxDepth: true,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
name: "ObjectUnderMaxNestingDepth",
|
||
|
|
data: `{"a":` + strings.Repeat(`{"a":`, 10000-1) + `0` + strings.Repeat(`}`, 10000-1) + `}`,
|
||
|
|
errMaxDepth: false,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
name: "ObjectOverMaxNestingDepth",
|
||
|
|
data: `{"a":` + strings.Repeat(`{"a":`, 10000) + `0` + strings.Repeat(`}`, 10000) + `}`,
|
||
|
|
errMaxDepth: true,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
name: "ObjectOverStackDepth",
|
||
|
|
data: `{"a":` + strings.Repeat(`{"a":`, 3000000) + `0` + strings.Repeat(`}`, 3000000) + `}`,
|
||
|
|
errMaxDepth: true,
|
||
|
|
},
|
||
|
|
}
|
||
|
|
|
||
|
|
targets := []struct {
|
||
|
|
name string
|
||
|
|
newValue func() any
|
||
|
|
}{
|
||
|
|
{
|
||
|
|
name: "unstructured",
|
||
|
|
newValue: func() any {
|
||
|
|
var v any
|
||
|
|
return &v
|
||
|
|
},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
name: "typed named field",
|
||
|
|
newValue: func() any {
|
||
|
|
v := struct {
|
||
|
|
A any `json:"a"`
|
||
|
|
}{}
|
||
|
|
return &v
|
||
|
|
},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
name: "typed missing field",
|
||
|
|
newValue: func() any {
|
||
|
|
v := struct {
|
||
|
|
B any `json:"b"`
|
||
|
|
}{}
|
||
|
|
return &v
|
||
|
|
},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
name: "custom unmarshaler",
|
||
|
|
newValue: func() any {
|
||
|
|
v := unmarshaler{}
|
||
|
|
return &v
|
||
|
|
},
|
||
|
|
},
|
||
|
|
}
|
||
|
|
|
||
|
|
for _, tc := range testcases {
|
||
|
|
for _, target := range targets {
|
||
|
|
t.Run(target.name+"-"+tc.name, func(t *testing.T) {
|
||
|
|
err := Unmarshal([]byte(tc.data), target.newValue())
|
||
|
|
if !tc.errMaxDepth {
|
||
|
|
if err != nil {
|
||
|
|
t.Errorf("unexpected error: %v", err)
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if err == nil {
|
||
|
|
t.Errorf("expected error containing 'exceeded max depth', got none")
|
||
|
|
} else if !strings.Contains(err.Error(), "exceeded max depth") {
|
||
|
|
t.Errorf("expected error containing 'exceeded max depth', got: %v", err)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
})
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|