mirror of git://gcc.gnu.org/git/gcc.git
984 lines
23 KiB
Go
984 lines
23 KiB
Go
// Copyright 2011 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package json
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"log"
|
|
"math"
|
|
"reflect"
|
|
"regexp"
|
|
"strconv"
|
|
"testing"
|
|
"unicode"
|
|
)
|
|
|
|
type Optionals struct {
|
|
Sr string `json:"sr"`
|
|
So string `json:"so,omitempty"`
|
|
Sw string `json:"-"`
|
|
|
|
Ir int `json:"omitempty"` // actually named omitempty, not an option
|
|
Io int `json:"io,omitempty"`
|
|
|
|
Slr []string `json:"slr,random"`
|
|
Slo []string `json:"slo,omitempty"`
|
|
|
|
Mr map[string]interface{} `json:"mr"`
|
|
Mo map[string]interface{} `json:",omitempty"`
|
|
|
|
Fr float64 `json:"fr"`
|
|
Fo float64 `json:"fo,omitempty"`
|
|
|
|
Br bool `json:"br"`
|
|
Bo bool `json:"bo,omitempty"`
|
|
|
|
Ur uint `json:"ur"`
|
|
Uo uint `json:"uo,omitempty"`
|
|
|
|
Str struct{} `json:"str"`
|
|
Sto struct{} `json:"sto,omitempty"`
|
|
}
|
|
|
|
var optionalsExpected = `{
|
|
"sr": "",
|
|
"omitempty": 0,
|
|
"slr": null,
|
|
"mr": {},
|
|
"fr": 0,
|
|
"br": false,
|
|
"ur": 0,
|
|
"str": {},
|
|
"sto": {}
|
|
}`
|
|
|
|
func TestOmitEmpty(t *testing.T) {
|
|
var o Optionals
|
|
o.Sw = "something"
|
|
o.Mr = map[string]interface{}{}
|
|
o.Mo = map[string]interface{}{}
|
|
|
|
got, err := MarshalIndent(&o, "", " ")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if got := string(got); got != optionalsExpected {
|
|
t.Errorf(" got: %s\nwant: %s\n", got, optionalsExpected)
|
|
}
|
|
}
|
|
|
|
type StringTag struct {
|
|
BoolStr bool `json:",string"`
|
|
IntStr int64 `json:",string"`
|
|
UintptrStr uintptr `json:",string"`
|
|
StrStr string `json:",string"`
|
|
}
|
|
|
|
var stringTagExpected = `{
|
|
"BoolStr": "true",
|
|
"IntStr": "42",
|
|
"UintptrStr": "44",
|
|
"StrStr": "\"xzbit\""
|
|
}`
|
|
|
|
func TestStringTag(t *testing.T) {
|
|
var s StringTag
|
|
s.BoolStr = true
|
|
s.IntStr = 42
|
|
s.UintptrStr = 44
|
|
s.StrStr = "xzbit"
|
|
got, err := MarshalIndent(&s, "", " ")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if got := string(got); got != stringTagExpected {
|
|
t.Fatalf(" got: %s\nwant: %s\n", got, stringTagExpected)
|
|
}
|
|
|
|
// Verify that it round-trips.
|
|
var s2 StringTag
|
|
err = NewDecoder(bytes.NewReader(got)).Decode(&s2)
|
|
if err != nil {
|
|
t.Fatalf("Decode: %v", err)
|
|
}
|
|
if !reflect.DeepEqual(s, s2) {
|
|
t.Fatalf("decode didn't match.\nsource: %#v\nEncoded as:\n%s\ndecode: %#v", s, string(got), s2)
|
|
}
|
|
}
|
|
|
|
// byte slices are special even if they're renamed types.
|
|
type renamedByte byte
|
|
type renamedByteSlice []byte
|
|
type renamedRenamedByteSlice []renamedByte
|
|
|
|
func TestEncodeRenamedByteSlice(t *testing.T) {
|
|
s := renamedByteSlice("abc")
|
|
result, err := Marshal(s)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
expect := `"YWJj"`
|
|
if string(result) != expect {
|
|
t.Errorf(" got %s want %s", result, expect)
|
|
}
|
|
r := renamedRenamedByteSlice("abc")
|
|
result, err = Marshal(r)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if string(result) != expect {
|
|
t.Errorf(" got %s want %s", result, expect)
|
|
}
|
|
}
|
|
|
|
var unsupportedValues = []interface{}{
|
|
math.NaN(),
|
|
math.Inf(-1),
|
|
math.Inf(1),
|
|
}
|
|
|
|
func TestUnsupportedValues(t *testing.T) {
|
|
for _, v := range unsupportedValues {
|
|
if _, err := Marshal(v); err != nil {
|
|
if _, ok := err.(*UnsupportedValueError); !ok {
|
|
t.Errorf("for %v, got %T want UnsupportedValueError", v, err)
|
|
}
|
|
} else {
|
|
t.Errorf("for %v, expected error", v)
|
|
}
|
|
}
|
|
}
|
|
|
|
// Ref has Marshaler and Unmarshaler methods with pointer receiver.
|
|
type Ref int
|
|
|
|
func (*Ref) MarshalJSON() ([]byte, error) {
|
|
return []byte(`"ref"`), nil
|
|
}
|
|
|
|
func (r *Ref) UnmarshalJSON([]byte) error {
|
|
*r = 12
|
|
return nil
|
|
}
|
|
|
|
// Val has Marshaler methods with value receiver.
|
|
type Val int
|
|
|
|
func (Val) MarshalJSON() ([]byte, error) {
|
|
return []byte(`"val"`), nil
|
|
}
|
|
|
|
// RefText has Marshaler and Unmarshaler methods with pointer receiver.
|
|
type RefText int
|
|
|
|
func (*RefText) MarshalText() ([]byte, error) {
|
|
return []byte(`"ref"`), nil
|
|
}
|
|
|
|
func (r *RefText) UnmarshalText([]byte) error {
|
|
*r = 13
|
|
return nil
|
|
}
|
|
|
|
// ValText has Marshaler methods with value receiver.
|
|
type ValText int
|
|
|
|
func (ValText) MarshalText() ([]byte, error) {
|
|
return []byte(`"val"`), nil
|
|
}
|
|
|
|
func TestRefValMarshal(t *testing.T) {
|
|
var s = struct {
|
|
R0 Ref
|
|
R1 *Ref
|
|
R2 RefText
|
|
R3 *RefText
|
|
V0 Val
|
|
V1 *Val
|
|
V2 ValText
|
|
V3 *ValText
|
|
}{
|
|
R0: 12,
|
|
R1: new(Ref),
|
|
R2: 14,
|
|
R3: new(RefText),
|
|
V0: 13,
|
|
V1: new(Val),
|
|
V2: 15,
|
|
V3: new(ValText),
|
|
}
|
|
const want = `{"R0":"ref","R1":"ref","R2":"\"ref\"","R3":"\"ref\"","V0":"val","V1":"val","V2":"\"val\"","V3":"\"val\""}`
|
|
b, err := Marshal(&s)
|
|
if err != nil {
|
|
t.Fatalf("Marshal: %v", err)
|
|
}
|
|
if got := string(b); got != want {
|
|
t.Errorf("got %q, want %q", got, want)
|
|
}
|
|
}
|
|
|
|
// C implements Marshaler and returns unescaped JSON.
|
|
type C int
|
|
|
|
func (C) MarshalJSON() ([]byte, error) {
|
|
return []byte(`"<&>"`), nil
|
|
}
|
|
|
|
// CText implements Marshaler and returns unescaped text.
|
|
type CText int
|
|
|
|
func (CText) MarshalText() ([]byte, error) {
|
|
return []byte(`"<&>"`), nil
|
|
}
|
|
|
|
func TestMarshalerEscaping(t *testing.T) {
|
|
var c C
|
|
want := `"\u003c\u0026\u003e"`
|
|
b, err := Marshal(c)
|
|
if err != nil {
|
|
t.Fatalf("Marshal(c): %v", err)
|
|
}
|
|
if got := string(b); got != want {
|
|
t.Errorf("Marshal(c) = %#q, want %#q", got, want)
|
|
}
|
|
|
|
var ct CText
|
|
want = `"\"\u003c\u0026\u003e\""`
|
|
b, err = Marshal(ct)
|
|
if err != nil {
|
|
t.Fatalf("Marshal(ct): %v", err)
|
|
}
|
|
if got := string(b); got != want {
|
|
t.Errorf("Marshal(ct) = %#q, want %#q", got, want)
|
|
}
|
|
}
|
|
|
|
func TestAnonymousFields(t *testing.T) {
|
|
tests := []struct {
|
|
label string // Test name
|
|
makeInput func() interface{} // Function to create input value
|
|
want string // Expected JSON output
|
|
}{{
|
|
// Both S1 and S2 have a field named X. From the perspective of S,
|
|
// it is ambiguous which one X refers to.
|
|
// This should not serialize either field.
|
|
label: "AmbiguousField",
|
|
makeInput: func() interface{} {
|
|
type (
|
|
S1 struct{ x, X int }
|
|
S2 struct{ x, X int }
|
|
S struct {
|
|
S1
|
|
S2
|
|
}
|
|
)
|
|
return S{S1{1, 2}, S2{3, 4}}
|
|
},
|
|
want: `{}`,
|
|
}, {
|
|
label: "DominantField",
|
|
// Both S1 and S2 have a field named X, but since S has an X field as
|
|
// well, it takes precedence over S1.X and S2.X.
|
|
makeInput: func() interface{} {
|
|
type (
|
|
S1 struct{ x, X int }
|
|
S2 struct{ x, X int }
|
|
S struct {
|
|
S1
|
|
S2
|
|
x, X int
|
|
}
|
|
)
|
|
return S{S1{1, 2}, S2{3, 4}, 5, 6}
|
|
},
|
|
want: `{"X":6}`,
|
|
}, {
|
|
// Unexported embedded field of non-struct type should not be serialized.
|
|
label: "UnexportedEmbeddedInt",
|
|
makeInput: func() interface{} {
|
|
type (
|
|
myInt int
|
|
S struct{ myInt }
|
|
)
|
|
return S{5}
|
|
},
|
|
want: `{}`,
|
|
}, {
|
|
// Exported embedded field of non-struct type should be serialized.
|
|
label: "ExportedEmbeddedInt",
|
|
makeInput: func() interface{} {
|
|
type (
|
|
MyInt int
|
|
S struct{ MyInt }
|
|
)
|
|
return S{5}
|
|
},
|
|
want: `{"MyInt":5}`,
|
|
}, {
|
|
// Unexported embedded field of pointer to non-struct type
|
|
// should not be serialized.
|
|
label: "UnexportedEmbeddedIntPointer",
|
|
makeInput: func() interface{} {
|
|
type (
|
|
myInt int
|
|
S struct{ *myInt }
|
|
)
|
|
s := S{new(myInt)}
|
|
*s.myInt = 5
|
|
return s
|
|
},
|
|
want: `{}`,
|
|
}, {
|
|
// Exported embedded field of pointer to non-struct type
|
|
// should be serialized.
|
|
label: "ExportedEmbeddedIntPointer",
|
|
makeInput: func() interface{} {
|
|
type (
|
|
MyInt int
|
|
S struct{ *MyInt }
|
|
)
|
|
s := S{new(MyInt)}
|
|
*s.MyInt = 5
|
|
return s
|
|
},
|
|
want: `{"MyInt":5}`,
|
|
}, {
|
|
// Exported fields of embedded structs should have their
|
|
// exported fields be serialized regardless of whether the struct types
|
|
// themselves are exported.
|
|
label: "EmbeddedStruct",
|
|
makeInput: func() interface{} {
|
|
type (
|
|
s1 struct{ x, X int }
|
|
S2 struct{ y, Y int }
|
|
S struct {
|
|
s1
|
|
S2
|
|
}
|
|
)
|
|
return S{s1{1, 2}, S2{3, 4}}
|
|
},
|
|
want: `{"X":2,"Y":4}`,
|
|
}, {
|
|
// Exported fields of pointers to embedded structs should have their
|
|
// exported fields be serialized regardless of whether the struct types
|
|
// themselves are exported.
|
|
label: "EmbeddedStructPointer",
|
|
makeInput: func() interface{} {
|
|
type (
|
|
s1 struct{ x, X int }
|
|
S2 struct{ y, Y int }
|
|
S struct {
|
|
*s1
|
|
*S2
|
|
}
|
|
)
|
|
return S{&s1{1, 2}, &S2{3, 4}}
|
|
},
|
|
want: `{"X":2,"Y":4}`,
|
|
}, {
|
|
// Exported fields on embedded unexported structs at multiple levels
|
|
// of nesting should still be serialized.
|
|
label: "NestedStructAndInts",
|
|
makeInput: func() interface{} {
|
|
type (
|
|
MyInt1 int
|
|
MyInt2 int
|
|
myInt int
|
|
s2 struct {
|
|
MyInt2
|
|
myInt
|
|
}
|
|
s1 struct {
|
|
MyInt1
|
|
myInt
|
|
s2
|
|
}
|
|
S struct {
|
|
s1
|
|
myInt
|
|
}
|
|
)
|
|
return S{s1{1, 2, s2{3, 4}}, 6}
|
|
},
|
|
want: `{"MyInt1":1,"MyInt2":3}`,
|
|
}}
|
|
|
|
for _, tt := range tests {
|
|
t.Run(tt.label, func(t *testing.T) {
|
|
b, err := Marshal(tt.makeInput())
|
|
if err != nil {
|
|
t.Fatalf("Marshal() = %v, want nil error", err)
|
|
}
|
|
if string(b) != tt.want {
|
|
t.Fatalf("Marshal() = %q, want %q", b, tt.want)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
type BugA struct {
|
|
S string
|
|
}
|
|
|
|
type BugB struct {
|
|
BugA
|
|
S string
|
|
}
|
|
|
|
type BugC struct {
|
|
S string
|
|
}
|
|
|
|
// Legal Go: We never use the repeated embedded field (S).
|
|
type BugX struct {
|
|
A int
|
|
BugA
|
|
BugB
|
|
}
|
|
|
|
// Issue 16042. Even if a nil interface value is passed in
|
|
// as long as it implements MarshalJSON, it should be marshaled.
|
|
type nilMarshaler string
|
|
|
|
func (nm *nilMarshaler) MarshalJSON() ([]byte, error) {
|
|
if nm == nil {
|
|
return Marshal("0zenil0")
|
|
}
|
|
return Marshal("zenil:" + string(*nm))
|
|
}
|
|
|
|
// Issue 16042.
|
|
func TestNilMarshal(t *testing.T) {
|
|
testCases := []struct {
|
|
v interface{}
|
|
want string
|
|
}{
|
|
{v: nil, want: `null`},
|
|
{v: new(float64), want: `0`},
|
|
{v: []interface{}(nil), want: `null`},
|
|
{v: []string(nil), want: `null`},
|
|
{v: map[string]string(nil), want: `null`},
|
|
{v: []byte(nil), want: `null`},
|
|
{v: struct{ M string }{"gopher"}, want: `{"M":"gopher"}`},
|
|
{v: struct{ M Marshaler }{}, want: `{"M":null}`},
|
|
{v: struct{ M Marshaler }{(*nilMarshaler)(nil)}, want: `{"M":"0zenil0"}`},
|
|
{v: struct{ M interface{} }{(*nilMarshaler)(nil)}, want: `{"M":null}`},
|
|
}
|
|
|
|
for _, tt := range testCases {
|
|
out, err := Marshal(tt.v)
|
|
if err != nil || string(out) != tt.want {
|
|
t.Errorf("Marshal(%#v) = %#q, %#v, want %#q, nil", tt.v, out, err, tt.want)
|
|
continue
|
|
}
|
|
}
|
|
}
|
|
|
|
// Issue 5245.
|
|
func TestEmbeddedBug(t *testing.T) {
|
|
v := BugB{
|
|
BugA{"A"},
|
|
"B",
|
|
}
|
|
b, err := Marshal(v)
|
|
if err != nil {
|
|
t.Fatal("Marshal:", err)
|
|
}
|
|
want := `{"S":"B"}`
|
|
got := string(b)
|
|
if got != want {
|
|
t.Fatalf("Marshal: got %s want %s", got, want)
|
|
}
|
|
// Now check that the duplicate field, S, does not appear.
|
|
x := BugX{
|
|
A: 23,
|
|
}
|
|
b, err = Marshal(x)
|
|
if err != nil {
|
|
t.Fatal("Marshal:", err)
|
|
}
|
|
want = `{"A":23}`
|
|
got = string(b)
|
|
if got != want {
|
|
t.Fatalf("Marshal: got %s want %s", got, want)
|
|
}
|
|
}
|
|
|
|
type BugD struct { // Same as BugA after tagging.
|
|
XXX string `json:"S"`
|
|
}
|
|
|
|
// BugD's tagged S field should dominate BugA's.
|
|
type BugY struct {
|
|
BugA
|
|
BugD
|
|
}
|
|
|
|
// Test that a field with a tag dominates untagged fields.
|
|
func TestTaggedFieldDominates(t *testing.T) {
|
|
v := BugY{
|
|
BugA{"BugA"},
|
|
BugD{"BugD"},
|
|
}
|
|
b, err := Marshal(v)
|
|
if err != nil {
|
|
t.Fatal("Marshal:", err)
|
|
}
|
|
want := `{"S":"BugD"}`
|
|
got := string(b)
|
|
if got != want {
|
|
t.Fatalf("Marshal: got %s want %s", got, want)
|
|
}
|
|
}
|
|
|
|
// There are no tags here, so S should not appear.
|
|
type BugZ struct {
|
|
BugA
|
|
BugC
|
|
BugY // Contains a tagged S field through BugD; should not dominate.
|
|
}
|
|
|
|
func TestDuplicatedFieldDisappears(t *testing.T) {
|
|
v := BugZ{
|
|
BugA{"BugA"},
|
|
BugC{"BugC"},
|
|
BugY{
|
|
BugA{"nested BugA"},
|
|
BugD{"nested BugD"},
|
|
},
|
|
}
|
|
b, err := Marshal(v)
|
|
if err != nil {
|
|
t.Fatal("Marshal:", err)
|
|
}
|
|
want := `{}`
|
|
got := string(b)
|
|
if got != want {
|
|
t.Fatalf("Marshal: got %s want %s", got, want)
|
|
}
|
|
}
|
|
|
|
func TestStringBytes(t *testing.T) {
|
|
t.Parallel()
|
|
// Test that encodeState.stringBytes and encodeState.string use the same encoding.
|
|
var r []rune
|
|
for i := '\u0000'; i <= unicode.MaxRune; i++ {
|
|
r = append(r, i)
|
|
}
|
|
s := string(r) + "\xff\xff\xffhello" // some invalid UTF-8 too
|
|
|
|
for _, escapeHTML := range []bool{true, false} {
|
|
es := &encodeState{}
|
|
es.string(s, escapeHTML)
|
|
|
|
esBytes := &encodeState{}
|
|
esBytes.stringBytes([]byte(s), escapeHTML)
|
|
|
|
enc := es.Buffer.String()
|
|
encBytes := esBytes.Buffer.String()
|
|
if enc != encBytes {
|
|
i := 0
|
|
for i < len(enc) && i < len(encBytes) && enc[i] == encBytes[i] {
|
|
i++
|
|
}
|
|
enc = enc[i:]
|
|
encBytes = encBytes[i:]
|
|
i = 0
|
|
for i < len(enc) && i < len(encBytes) && enc[len(enc)-i-1] == encBytes[len(encBytes)-i-1] {
|
|
i++
|
|
}
|
|
enc = enc[:len(enc)-i]
|
|
encBytes = encBytes[:len(encBytes)-i]
|
|
|
|
if len(enc) > 20 {
|
|
enc = enc[:20] + "..."
|
|
}
|
|
if len(encBytes) > 20 {
|
|
encBytes = encBytes[:20] + "..."
|
|
}
|
|
|
|
t.Errorf("with escapeHTML=%t, encodings differ at %#q vs %#q",
|
|
escapeHTML, enc, encBytes)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestIssue10281(t *testing.T) {
|
|
type Foo struct {
|
|
N Number
|
|
}
|
|
x := Foo{Number(`invalid`)}
|
|
|
|
b, err := Marshal(&x)
|
|
if err == nil {
|
|
t.Errorf("Marshal(&x) = %#q; want error", b)
|
|
}
|
|
}
|
|
|
|
func TestHTMLEscape(t *testing.T) {
|
|
var b, want bytes.Buffer
|
|
m := `{"M":"<html>foo &` + "\xe2\x80\xa8 \xe2\x80\xa9" + `</html>"}`
|
|
want.Write([]byte(`{"M":"\u003chtml\u003efoo \u0026\u2028 \u2029\u003c/html\u003e"}`))
|
|
HTMLEscape(&b, []byte(m))
|
|
if !bytes.Equal(b.Bytes(), want.Bytes()) {
|
|
t.Errorf("HTMLEscape(&b, []byte(m)) = %s; want %s", b.Bytes(), want.Bytes())
|
|
}
|
|
}
|
|
|
|
// golang.org/issue/8582
|
|
func TestEncodePointerString(t *testing.T) {
|
|
type stringPointer struct {
|
|
N *int64 `json:"n,string"`
|
|
}
|
|
var n int64 = 42
|
|
b, err := Marshal(stringPointer{N: &n})
|
|
if err != nil {
|
|
t.Fatalf("Marshal: %v", err)
|
|
}
|
|
if got, want := string(b), `{"n":"42"}`; got != want {
|
|
t.Errorf("Marshal = %s, want %s", got, want)
|
|
}
|
|
var back stringPointer
|
|
err = Unmarshal(b, &back)
|
|
if err != nil {
|
|
t.Fatalf("Unmarshal: %v", err)
|
|
}
|
|
if back.N == nil {
|
|
t.Fatalf("Unmarshaled nil N field")
|
|
}
|
|
if *back.N != 42 {
|
|
t.Fatalf("*N = %d; want 42", *back.N)
|
|
}
|
|
}
|
|
|
|
var encodeStringTests = []struct {
|
|
in string
|
|
out string
|
|
}{
|
|
{"\x00", `"\u0000"`},
|
|
{"\x01", `"\u0001"`},
|
|
{"\x02", `"\u0002"`},
|
|
{"\x03", `"\u0003"`},
|
|
{"\x04", `"\u0004"`},
|
|
{"\x05", `"\u0005"`},
|
|
{"\x06", `"\u0006"`},
|
|
{"\x07", `"\u0007"`},
|
|
{"\x08", `"\u0008"`},
|
|
{"\x09", `"\t"`},
|
|
{"\x0a", `"\n"`},
|
|
{"\x0b", `"\u000b"`},
|
|
{"\x0c", `"\u000c"`},
|
|
{"\x0d", `"\r"`},
|
|
{"\x0e", `"\u000e"`},
|
|
{"\x0f", `"\u000f"`},
|
|
{"\x10", `"\u0010"`},
|
|
{"\x11", `"\u0011"`},
|
|
{"\x12", `"\u0012"`},
|
|
{"\x13", `"\u0013"`},
|
|
{"\x14", `"\u0014"`},
|
|
{"\x15", `"\u0015"`},
|
|
{"\x16", `"\u0016"`},
|
|
{"\x17", `"\u0017"`},
|
|
{"\x18", `"\u0018"`},
|
|
{"\x19", `"\u0019"`},
|
|
{"\x1a", `"\u001a"`},
|
|
{"\x1b", `"\u001b"`},
|
|
{"\x1c", `"\u001c"`},
|
|
{"\x1d", `"\u001d"`},
|
|
{"\x1e", `"\u001e"`},
|
|
{"\x1f", `"\u001f"`},
|
|
}
|
|
|
|
func TestEncodeString(t *testing.T) {
|
|
for _, tt := range encodeStringTests {
|
|
b, err := Marshal(tt.in)
|
|
if err != nil {
|
|
t.Errorf("Marshal(%q): %v", tt.in, err)
|
|
continue
|
|
}
|
|
out := string(b)
|
|
if out != tt.out {
|
|
t.Errorf("Marshal(%q) = %#q, want %#q", tt.in, out, tt.out)
|
|
}
|
|
}
|
|
}
|
|
|
|
type jsonbyte byte
|
|
|
|
func (b jsonbyte) MarshalJSON() ([]byte, error) { return tenc(`{"JB":%d}`, b) }
|
|
|
|
type textbyte byte
|
|
|
|
func (b textbyte) MarshalText() ([]byte, error) { return tenc(`TB:%d`, b) }
|
|
|
|
type jsonint int
|
|
|
|
func (i jsonint) MarshalJSON() ([]byte, error) { return tenc(`{"JI":%d}`, i) }
|
|
|
|
type textint int
|
|
|
|
func (i textint) MarshalText() ([]byte, error) { return tenc(`TI:%d`, i) }
|
|
|
|
func tenc(format string, a ...interface{}) ([]byte, error) {
|
|
var buf bytes.Buffer
|
|
fmt.Fprintf(&buf, format, a...)
|
|
return buf.Bytes(), nil
|
|
}
|
|
|
|
// Issue 13783
|
|
func TestEncodeBytekind(t *testing.T) {
|
|
testdata := []struct {
|
|
data interface{}
|
|
want string
|
|
}{
|
|
{byte(7), "7"},
|
|
{jsonbyte(7), `{"JB":7}`},
|
|
{textbyte(4), `"TB:4"`},
|
|
{jsonint(5), `{"JI":5}`},
|
|
{textint(1), `"TI:1"`},
|
|
{[]byte{0, 1}, `"AAE="`},
|
|
{[]jsonbyte{0, 1}, `[{"JB":0},{"JB":1}]`},
|
|
{[][]jsonbyte{{0, 1}, {3}}, `[[{"JB":0},{"JB":1}],[{"JB":3}]]`},
|
|
{[]textbyte{2, 3}, `["TB:2","TB:3"]`},
|
|
{[]jsonint{5, 4}, `[{"JI":5},{"JI":4}]`},
|
|
{[]textint{9, 3}, `["TI:9","TI:3"]`},
|
|
{[]int{9, 3}, `[9,3]`},
|
|
}
|
|
for _, d := range testdata {
|
|
js, err := Marshal(d.data)
|
|
if err != nil {
|
|
t.Error(err)
|
|
continue
|
|
}
|
|
got, want := string(js), d.want
|
|
if got != want {
|
|
t.Errorf("got %s, want %s", got, want)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestTextMarshalerMapKeysAreSorted(t *testing.T) {
|
|
b, err := Marshal(map[unmarshalerText]int{
|
|
{"x", "y"}: 1,
|
|
{"y", "x"}: 2,
|
|
{"a", "z"}: 3,
|
|
{"z", "a"}: 4,
|
|
})
|
|
if err != nil {
|
|
t.Fatalf("Failed to Marshal text.Marshaler: %v", err)
|
|
}
|
|
const want = `{"a:z":3,"x:y":1,"y:x":2,"z:a":4}`
|
|
if string(b) != want {
|
|
t.Errorf("Marshal map with text.Marshaler keys: got %#q, want %#q", b, want)
|
|
}
|
|
}
|
|
|
|
var re = regexp.MustCompile
|
|
|
|
// syntactic checks on form of marshaled floating point numbers.
|
|
var badFloatREs = []*regexp.Regexp{
|
|
re(`p`), // no binary exponential notation
|
|
re(`^\+`), // no leading + sign
|
|
re(`^-?0[^.]`), // no unnecessary leading zeros
|
|
re(`^-?\.`), // leading zero required before decimal point
|
|
re(`\.(e|$)`), // no trailing decimal
|
|
re(`\.[0-9]+0(e|$)`), // no trailing zero in fraction
|
|
re(`^-?(0|[0-9]{2,})\..*e`), // exponential notation must have normalized mantissa
|
|
re(`e[0-9]`), // positive exponent must be signed
|
|
re(`e[+-]0`), // exponent must not have leading zeros
|
|
re(`e-[1-6]$`), // not tiny enough for exponential notation
|
|
re(`e+(.|1.|20)$`), // not big enough for exponential notation
|
|
re(`^-?0\.0000000`), // too tiny, should use exponential notation
|
|
re(`^-?[0-9]{22}`), // too big, should use exponential notation
|
|
re(`[1-9][0-9]{16}[1-9]`), // too many significant digits in integer
|
|
re(`[1-9][0-9.]{17}[1-9]`), // too many significant digits in decimal
|
|
// below here for float32 only
|
|
re(`[1-9][0-9]{8}[1-9]`), // too many significant digits in integer
|
|
re(`[1-9][0-9.]{9}[1-9]`), // too many significant digits in decimal
|
|
}
|
|
|
|
func TestMarshalFloat(t *testing.T) {
|
|
t.Parallel()
|
|
nfail := 0
|
|
test := func(f float64, bits int) {
|
|
vf := interface{}(f)
|
|
if bits == 32 {
|
|
f = float64(float32(f)) // round
|
|
vf = float32(f)
|
|
}
|
|
bout, err := Marshal(vf)
|
|
if err != nil {
|
|
t.Errorf("Marshal(%T(%g)): %v", vf, vf, err)
|
|
nfail++
|
|
return
|
|
}
|
|
out := string(bout)
|
|
|
|
// result must convert back to the same float
|
|
g, err := strconv.ParseFloat(out, bits)
|
|
if err != nil {
|
|
t.Errorf("Marshal(%T(%g)) = %q, cannot parse back: %v", vf, vf, out, err)
|
|
nfail++
|
|
return
|
|
}
|
|
if f != g || fmt.Sprint(f) != fmt.Sprint(g) { // fmt.Sprint handles ±0
|
|
t.Errorf("Marshal(%T(%g)) = %q (is %g, not %g)", vf, vf, out, float32(g), vf)
|
|
nfail++
|
|
return
|
|
}
|
|
|
|
bad := badFloatREs
|
|
if bits == 64 {
|
|
bad = bad[:len(bad)-2]
|
|
}
|
|
for _, re := range bad {
|
|
if re.MatchString(out) {
|
|
t.Errorf("Marshal(%T(%g)) = %q, must not match /%s/", vf, vf, out, re)
|
|
nfail++
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
var (
|
|
bigger = math.Inf(+1)
|
|
smaller = math.Inf(-1)
|
|
)
|
|
|
|
var digits = "1.2345678901234567890123"
|
|
for i := len(digits); i >= 2; i-- {
|
|
for exp := -30; exp <= 30; exp++ {
|
|
for _, sign := range "+-" {
|
|
for bits := 32; bits <= 64; bits += 32 {
|
|
s := fmt.Sprintf("%c%se%d", sign, digits[:i], exp)
|
|
f, err := strconv.ParseFloat(s, bits)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
next := math.Nextafter
|
|
if bits == 32 {
|
|
next = func(g, h float64) float64 {
|
|
return float64(math.Nextafter32(float32(g), float32(h)))
|
|
}
|
|
}
|
|
test(f, bits)
|
|
test(next(f, bigger), bits)
|
|
test(next(f, smaller), bits)
|
|
if nfail > 50 {
|
|
t.Fatalf("stopping test early")
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
test(0, 64)
|
|
test(math.Copysign(0, -1), 64)
|
|
test(0, 32)
|
|
test(math.Copysign(0, -1), 32)
|
|
}
|
|
|
|
func TestMarshalRawMessageValue(t *testing.T) {
|
|
type (
|
|
T1 struct {
|
|
M RawMessage `json:",omitempty"`
|
|
}
|
|
T2 struct {
|
|
M *RawMessage `json:",omitempty"`
|
|
}
|
|
)
|
|
|
|
var (
|
|
rawNil = RawMessage(nil)
|
|
rawEmpty = RawMessage([]byte{})
|
|
rawText = RawMessage([]byte(`"foo"`))
|
|
)
|
|
|
|
tests := []struct {
|
|
in interface{}
|
|
want string
|
|
ok bool
|
|
}{
|
|
// Test with nil RawMessage.
|
|
{rawNil, "null", true},
|
|
{&rawNil, "null", true},
|
|
{[]interface{}{rawNil}, "[null]", true},
|
|
{&[]interface{}{rawNil}, "[null]", true},
|
|
{[]interface{}{&rawNil}, "[null]", true},
|
|
{&[]interface{}{&rawNil}, "[null]", true},
|
|
{struct{ M RawMessage }{rawNil}, `{"M":null}`, true},
|
|
{&struct{ M RawMessage }{rawNil}, `{"M":null}`, true},
|
|
{struct{ M *RawMessage }{&rawNil}, `{"M":null}`, true},
|
|
{&struct{ M *RawMessage }{&rawNil}, `{"M":null}`, true},
|
|
{map[string]interface{}{"M": rawNil}, `{"M":null}`, true},
|
|
{&map[string]interface{}{"M": rawNil}, `{"M":null}`, true},
|
|
{map[string]interface{}{"M": &rawNil}, `{"M":null}`, true},
|
|
{&map[string]interface{}{"M": &rawNil}, `{"M":null}`, true},
|
|
{T1{rawNil}, "{}", true},
|
|
{T2{&rawNil}, `{"M":null}`, true},
|
|
{&T1{rawNil}, "{}", true},
|
|
{&T2{&rawNil}, `{"M":null}`, true},
|
|
|
|
// Test with empty, but non-nil, RawMessage.
|
|
{rawEmpty, "", false},
|
|
{&rawEmpty, "", false},
|
|
{[]interface{}{rawEmpty}, "", false},
|
|
{&[]interface{}{rawEmpty}, "", false},
|
|
{[]interface{}{&rawEmpty}, "", false},
|
|
{&[]interface{}{&rawEmpty}, "", false},
|
|
{struct{ X RawMessage }{rawEmpty}, "", false},
|
|
{&struct{ X RawMessage }{rawEmpty}, "", false},
|
|
{struct{ X *RawMessage }{&rawEmpty}, "", false},
|
|
{&struct{ X *RawMessage }{&rawEmpty}, "", false},
|
|
{map[string]interface{}{"nil": rawEmpty}, "", false},
|
|
{&map[string]interface{}{"nil": rawEmpty}, "", false},
|
|
{map[string]interface{}{"nil": &rawEmpty}, "", false},
|
|
{&map[string]interface{}{"nil": &rawEmpty}, "", false},
|
|
{T1{rawEmpty}, "{}", true},
|
|
{T2{&rawEmpty}, "", false},
|
|
{&T1{rawEmpty}, "{}", true},
|
|
{&T2{&rawEmpty}, "", false},
|
|
|
|
// Test with RawMessage with some text.
|
|
//
|
|
// The tests below marked with Issue6458 used to generate "ImZvbyI=" instead "foo".
|
|
// This behavior was intentionally changed in Go 1.8.
|
|
// See https://golang.org/issues/14493#issuecomment-255857318
|
|
{rawText, `"foo"`, true}, // Issue6458
|
|
{&rawText, `"foo"`, true},
|
|
{[]interface{}{rawText}, `["foo"]`, true}, // Issue6458
|
|
{&[]interface{}{rawText}, `["foo"]`, true}, // Issue6458
|
|
{[]interface{}{&rawText}, `["foo"]`, true},
|
|
{&[]interface{}{&rawText}, `["foo"]`, true},
|
|
{struct{ M RawMessage }{rawText}, `{"M":"foo"}`, true}, // Issue6458
|
|
{&struct{ M RawMessage }{rawText}, `{"M":"foo"}`, true},
|
|
{struct{ M *RawMessage }{&rawText}, `{"M":"foo"}`, true},
|
|
{&struct{ M *RawMessage }{&rawText}, `{"M":"foo"}`, true},
|
|
{map[string]interface{}{"M": rawText}, `{"M":"foo"}`, true}, // Issue6458
|
|
{&map[string]interface{}{"M": rawText}, `{"M":"foo"}`, true}, // Issue6458
|
|
{map[string]interface{}{"M": &rawText}, `{"M":"foo"}`, true},
|
|
{&map[string]interface{}{"M": &rawText}, `{"M":"foo"}`, true},
|
|
{T1{rawText}, `{"M":"foo"}`, true}, // Issue6458
|
|
{T2{&rawText}, `{"M":"foo"}`, true},
|
|
{&T1{rawText}, `{"M":"foo"}`, true},
|
|
{&T2{&rawText}, `{"M":"foo"}`, true},
|
|
}
|
|
|
|
for i, tt := range tests {
|
|
b, err := Marshal(tt.in)
|
|
if ok := (err == nil); ok != tt.ok {
|
|
if err != nil {
|
|
t.Errorf("test %d, unexpected failure: %v", i, err)
|
|
} else {
|
|
t.Errorf("test %d, unexpected success", i)
|
|
}
|
|
}
|
|
if got := string(b); got != tt.want {
|
|
t.Errorf("test %d, Marshal(%#v) = %q, want %q", i, tt.in, got, tt.want)
|
|
}
|
|
}
|
|
}
|