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decode_test.go
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decode_test.go
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// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package json5
import (
"bytes"
"encoding"
"errors"
"fmt"
"image"
"net"
"reflect"
"strings"
"testing"
"time"
)
// Ref has Marshaler and Unmarshaler methods with pointer receiver.
type Ref int
func (r *Ref) UnmarshalJSON([]byte) error {
*r = 12
return nil
}
// RefText has Marshaler and Unmarshaler methods with pointer receiver.
type RefText int
func (r *RefText) UnmarshalText([]byte) error {
*r = 13
return nil
}
type T struct {
X string
Y int
Z int `json:"-"`
}
type U struct {
Alphabet string `json:"alpha"`
}
type V struct {
F1 interface{}
F2 int32
F3 Number
}
// ifaceNumAsFloat64/ifaceNumAsNumber are used to test unmarshaling with and
// without UseNumber
var ifaceNumAsFloat64 = map[string]interface{}{
"k1": float64(1),
"k2": "s",
"k3": []interface{}{float64(1), float64(2.0), float64(3e-3)},
"k4": map[string]interface{}{"kk1": "s", "kk2": float64(2)},
}
var ifaceNumAsNumber = map[string]interface{}{
"k1": Number("1"),
"k2": "s",
"k3": []interface{}{Number("1"), Number("2.0"), Number("3e-3")},
"k4": map[string]interface{}{"kk1": "s", "kk2": Number("2")},
}
type tx struct {
x int
}
// A type that can unmarshal itself.
type unmarshaler struct {
T bool
}
func (u *unmarshaler) UnmarshalJSON(b []byte) error {
*u = unmarshaler{true} // All we need to see that UnmarshalJSON is called.
return nil
}
type ustruct struct {
M unmarshaler
}
type unmarshalerText struct {
A, B string
}
func (u *unmarshalerText) UnmarshalText(b []byte) error {
pos := bytes.Index(b, []byte(":"))
if pos == -1 {
return errors.New("missing separator")
}
u.A, u.B = string(b[:pos]), string(b[pos+1:])
return nil
}
var _ encoding.TextUnmarshaler = (*unmarshalerText)(nil)
type ustructText struct {
M unmarshalerText
}
var (
um0, um1 unmarshaler // target2 of unmarshaling
ump = &um1
umtrue = unmarshaler{true}
umslice = []unmarshaler{{true}}
umslicep = new([]unmarshaler)
umstruct = ustruct{unmarshaler{true}}
um0T, um1T unmarshalerText // target2 of unmarshaling
umpType = &um1T
umtrueXY = unmarshalerText{"x", "y"}
umsliceXY = []unmarshalerText{{"x", "y"}}
umslicepType = new([]unmarshalerText)
umstructType = new(ustructText)
umstructXY = ustructText{unmarshalerText{"x", "y"}}
ummapType = map[unmarshalerText]bool{}
ummapXY = map[unmarshalerText]bool{unmarshalerText{"x", "y"}: true}
)
// Test data structures for anonymous fields.
type Point struct {
Z int
}
type Top struct {
Level0 int
Embed0
*Embed0a
*Embed0b `json:"e,omitempty"` // treated as named
Embed0c `json:"-"` // ignored
Loop
Embed0p // has Point with X, Y, used
Embed0q // has Point with Z, used
embed // contains exported field
}
type Embed0 struct {
Level1a int // overridden by Embed0a's Level1a with json tag
Level1b int // used because Embed0a's Level1b is renamed
Level1c int // used because Embed0a's Level1c is ignored
Level1d int // annihilated by Embed0a's Level1d
Level1e int `json:"x"` // annihilated by Embed0a.Level1e
}
type Embed0a struct {
Level1a int `json:"Level1a,omitempty"`
Level1b int `json:"LEVEL1B,omitempty"`
Level1c int `json:"-"`
Level1d int // annihilated by Embed0's Level1d
Level1f int `json:"x"` // annihilated by Embed0's Level1e
}
type Embed0b Embed0
type Embed0c Embed0
type Embed0p struct {
image.Point
}
type Embed0q struct {
Point
}
type embed struct {
Q int
}
type Loop struct {
Loop1 int `json:",omitempty"`
Loop2 int `json:",omitempty"`
*Loop
}
// From reflect test:
// The X in S6 and S7 annihilate, but they also block the X in S8.S9.
type S5 struct {
S6
S7
S8
}
type S6 struct {
X int
}
type S7 S6
type S8 struct {
S9
}
type S9 struct {
X int
Y int
}
// From reflect test:
// The X in S11.S6 and S12.S6 annihilate, but they also block the X in S13.S8.S9.
type S10 struct {
S11
S12
S13
}
type S11 struct {
S6
}
type S12 struct {
S6
}
type S13 struct {
S8
}
type unmarshalTest struct {
in string
ptr interface{}
out interface{}
err error
useNumber bool
}
type Ambig struct {
// Given "hello", the first match should win.
First int `json:"HELLO"`
Second int `json:"Hello"`
}
type XYZ struct {
X interface{}
Y interface{}
Z interface{}
}
func sliceAddr(x []int) *[]int { return &x }
func mapAddr(x map[string]int) *map[string]int { return &x }
var unmarshalTests = []unmarshalTest{
// basic types
{in: `true`, ptr: new(bool), out: true},
{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(interface{}), out: float64(2.0)},
{in: `2`, ptr: new(interface{}), 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(interface{}), out: nil},
{in: `{"X": [1,2,3], "Y": 4}`, ptr: new(T), out: T{Y: 4}, err: &UnmarshalTypeError{"array", reflect.TypeOf(""), 7}},
{in: `{"x": 1}`, ptr: new(tx), out: tx{}},
{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(interface{}), out: ifaceNumAsFloat64},
{in: `{"k1":1,"k2":"s","k3":[1,2.0,3e-3],"k4":{"kk1":"s","kk2":2}}`, ptr: new(interface{}), 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: `{"alpha": "abc", "alphabet": "xyz"}`, ptr: new(U), out: U{Alphabet: "abc"}},
{in: `{"alpha": "abc"}`, ptr: new(U), out: U{Alphabet: "abc"}},
{in: `{"alphabet": "xyz"}`, ptr: new(U), out: U{}},
// 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},
// 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}},
// empty array to interface test
{in: `[]`, ptr: new([]interface{}), out: []interface{}{}},
{in: `null`, ptr: new([]interface{}), out: []interface{}(nil)},
{in: `{"T":[]}`, ptr: new(map[string]interface{}), out: map[string]interface{}{"T": []interface{}{}}},
{in: `{"T":null}`, ptr: new(map[string]interface{}), out: map[string]interface{}{"T": interface{}(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: &um0, out: umtrue}, // use "false" so test will fail if custom unmarshaler is not called
{in: `{"T":false}`, ptr: &ump, out: &umtrue},
{in: `[{"T":false}]`, ptr: &umslice, out: umslice},
{in: `[{"T":false}]`, ptr: &umslicep, out: &umslice},
{in: `{"M":{"T":"x:y"}}`, ptr: &umstruct, out: umstruct},
// UnmarshalText interface test
{in: `"x:y"`, ptr: &um0T, out: umtrueXY},
{in: `"x:y"`, ptr: &umpType, out: &umtrueXY},
{in: `["x:y"]`, ptr: &umsliceXY, out: umsliceXY},
{in: `["x:y"]`, ptr: &umslicepType, out: &umsliceXY},
{in: `{"M":"x:y"}`, ptr: umstructType, out: umstructXY},
// Map keys can be encoding.TextUnmarshalers
{in: `{"x:y":true}`, ptr: &ummapType, 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: &ummapType, out: ummapXY},
// Overwriting of data.
// This is different from package xml, but it's what we've always done.
// Now documented and tested.
{in: `[2]`, ptr: sliceAddr([]int{1}), out: []int{2}},
{in: `{"key": 2}`, ptr: mapAddr(map[string]int{"old": 0, "key": 1}), out: map[string]int{"key": 2}},
{
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(S10),
out: S10{S13: S13{S8: S8{S9: S9{Y: 2}}}},
},
// 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: &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: &map[Point]string{},
err: &UnmarshalTypeError{"object", reflect.TypeOf(map[Point]string{}), 1},
},
{
in: `{"asdf": "hello world"}`,
ptr: &map[unmarshaler]string{},
err: &UnmarshalTypeError{"object", reflect.TypeOf(map[unmarshaler]string{}), 1},
},
}
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 TestUnmarshal(t *testing.T) {
for i, tt := range unmarshalTests {
var scan scanner
in := []byte(tt.in)
if err := checkValid(in, &scan); err != nil {
if !reflect.DeepEqual(err, tt.err) {
t.Errorf("#%d: checkValid: %#v", i, err)
continue
}
}
if tt.ptr == nil {
continue
}
// v = new(right-type)
v := reflect.New(reflect.TypeOf(tt.ptr).Elem())
dec := NewDecoder(bytes.NewReader(in))
if tt.useNumber {
dec.UseNumber()
}
if err := dec.Decode(v.Interface()); !reflect.DeepEqual(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)
continue
}
}
}
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)
}
}
}
type Xint struct {
X int
}
func TestUnmarshalInterface(t *testing.T) {
var xint Xint
var i interface{} = &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")
}
}
// 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`},
}
// 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"`
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 interface{}
PInterface *interface{}
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,
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",
"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",
"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 {