mirror of git://gcc.gnu.org/git/gcc.git
1374 lines
30 KiB
Go
1374 lines
30 KiB
Go
// 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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"fmt"
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"image"
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"reflect"
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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 interface{}
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F2 int32
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F3 Number
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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]interface{}{
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"k1": float64(1),
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"k2": "s",
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"k3": []interface{}{float64(1), float64(2.0), float64(3e-3)},
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"k4": map[string]interface{}{"kk1": "s", "kk2": float64(2)},
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}
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var ifaceNumAsNumber = map[string]interface{}{
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"k1": Number("1"),
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"k2": "s",
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"k3": []interface{}{Number("1"), Number("2.0"), Number("3e-3")},
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"k4": map[string]interface{}{"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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// 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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T bool
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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(""), nil
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}
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func (u *unmarshalerText) UnmarshalText(b []byte) error {
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*u = unmarshalerText{true} // All we need to see that UnmarshalText is called.
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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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var (
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um0, um1 unmarshaler // target2 of unmarshaling
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ump = &um1
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umtrue = unmarshaler{true}
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umslice = []unmarshaler{{true}}
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umslicep = new([]unmarshaler)
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umstruct = ustruct{unmarshaler{true}}
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um0T, um1T unmarshalerText // target2 of unmarshaling
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umpT = &um1T
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umtrueT = unmarshalerText{true}
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umsliceT = []unmarshalerText{{true}}
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umslicepT = new([]unmarshalerText)
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umstructT = ustructText{unmarshalerText{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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}
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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 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 unmarshalTest struct {
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in string
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ptr interface{}
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out interface{}
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err error
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useNumber bool
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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 interface{}
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Y interface{}
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Z interface{}
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}
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var unmarshalTests = []unmarshalTest{
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// basic types
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{in: `true`, ptr: new(bool), out: true},
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{in: `1`, ptr: new(int), out: 1},
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{in: `1.2`, ptr: new(float64), out: 1.2},
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{in: `-5`, ptr: new(int16), out: int16(-5)},
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{in: `2`, ptr: new(Number), out: Number("2"), useNumber: true},
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{in: `2`, ptr: new(Number), out: Number("2")},
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{in: `2`, ptr: new(interface{}), out: float64(2.0)},
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{in: `2`, ptr: new(interface{}), out: Number("2"), useNumber: true},
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{in: `"a\u1234"`, ptr: new(string), out: "a\u1234"},
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{in: `"http:\/\/"`, ptr: new(string), out: "http://"},
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{in: `"g-clef: \uD834\uDD1E"`, ptr: new(string), out: "g-clef: \U0001D11E"},
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{in: `"invalid: \uD834x\uDD1E"`, ptr: new(string), out: "invalid: \uFFFDx\uFFFD"},
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{in: "null", ptr: new(interface{}), out: nil},
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{in: `{"X": [1,2,3], "Y": 4}`, ptr: new(T), out: T{Y: 4}, err: &UnmarshalTypeError{"array", reflect.TypeOf("")}},
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{in: `{"x": 1}`, ptr: new(tx), out: tx{}},
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{in: `{"F1":1,"F2":2,"F3":3}`, ptr: new(V), out: V{F1: float64(1), F2: int32(2), F3: Number("3")}},
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{in: `{"F1":1,"F2":2,"F3":3}`, ptr: new(V), out: V{F1: Number("1"), F2: int32(2), F3: Number("3")}, useNumber: true},
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{in: `{"k1":1,"k2":"s","k3":[1,2.0,3e-3],"k4":{"kk1":"s","kk2":2}}`, ptr: new(interface{}), out: ifaceNumAsFloat64},
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{in: `{"k1":1,"k2":"s","k3":[1,2.0,3e-3],"k4":{"kk1":"s","kk2":2}}`, ptr: new(interface{}), out: ifaceNumAsNumber, useNumber: true},
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// raw values with whitespace
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{in: "\n true ", ptr: new(bool), out: true},
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{in: "\t 1 ", ptr: new(int), out: 1},
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{in: "\r 1.2 ", ptr: new(float64), out: 1.2},
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{in: "\t -5 \n", ptr: new(int16), out: int16(-5)},
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{in: "\t \"a\\u1234\" \n", ptr: new(string), out: "a\u1234"},
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// Z has a "-" tag.
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{in: `{"Y": 1, "Z": 2}`, ptr: new(T), out: T{Y: 1}},
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{in: `{"alpha": "abc", "alphabet": "xyz"}`, ptr: new(U), out: U{Alphabet: "abc"}},
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{in: `{"alpha": "abc"}`, ptr: new(U), out: U{Alphabet: "abc"}},
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{in: `{"alphabet": "xyz"}`, ptr: new(U), out: U{}},
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// syntax errors
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{in: `{"X": "foo", "Y"}`, err: &SyntaxError{"invalid character '}' after object key", 17}},
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{in: `[1, 2, 3+]`, err: &SyntaxError{"invalid character '+' after array element", 9}},
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{in: `{"X":12x}`, err: &SyntaxError{"invalid character 'x' after object key:value pair", 8}, useNumber: true},
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// raw value errors
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{in: "\x01 42", err: &SyntaxError{"invalid character '\\x01' looking for beginning of value", 1}},
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{in: " 42 \x01", err: &SyntaxError{"invalid character '\\x01' after top-level value", 5}},
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{in: "\x01 true", err: &SyntaxError{"invalid character '\\x01' looking for beginning of value", 1}},
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{in: " false \x01", err: &SyntaxError{"invalid character '\\x01' after top-level value", 8}},
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{in: "\x01 1.2", err: &SyntaxError{"invalid character '\\x01' looking for beginning of value", 1}},
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{in: " 3.4 \x01", err: &SyntaxError{"invalid character '\\x01' after top-level value", 6}},
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{in: "\x01 \"string\"", err: &SyntaxError{"invalid character '\\x01' looking for beginning of value", 1}},
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{in: " \"string\" \x01", err: &SyntaxError{"invalid character '\\x01' after top-level value", 11}},
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// array tests
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{in: `[1, 2, 3]`, ptr: new([3]int), out: [3]int{1, 2, 3}},
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{in: `[1, 2, 3]`, ptr: new([1]int), out: [1]int{1}},
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{in: `[1, 2, 3]`, ptr: new([5]int), out: [5]int{1, 2, 3, 0, 0}},
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// empty array to interface test
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{in: `[]`, ptr: new([]interface{}), out: []interface{}{}},
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{in: `null`, ptr: new([]interface{}), out: []interface{}(nil)},
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{in: `{"T":[]}`, ptr: new(map[string]interface{}), out: map[string]interface{}{"T": []interface{}{}}},
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{in: `{"T":null}`, ptr: new(map[string]interface{}), out: map[string]interface{}{"T": interface{}(nil)}},
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// composite tests
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{in: allValueIndent, ptr: new(All), out: allValue},
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{in: allValueCompact, ptr: new(All), out: allValue},
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{in: allValueIndent, ptr: new(*All), out: &allValue},
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{in: allValueCompact, ptr: new(*All), out: &allValue},
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{in: pallValueIndent, ptr: new(All), out: pallValue},
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{in: pallValueCompact, ptr: new(All), out: pallValue},
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{in: pallValueIndent, ptr: new(*All), out: &pallValue},
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{in: pallValueCompact, ptr: new(*All), out: &pallValue},
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// unmarshal interface test
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{in: `{"T":false}`, ptr: &um0, out: umtrue}, // use "false" so test will fail if custom unmarshaler is not called
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{in: `{"T":false}`, ptr: &ump, out: &umtrue},
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{in: `[{"T":false}]`, ptr: &umslice, out: umslice},
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{in: `[{"T":false}]`, ptr: &umslicep, out: &umslice},
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{in: `{"M":{"T":false}}`, ptr: &umstruct, out: umstruct},
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// UnmarshalText interface test
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{in: `"X"`, ptr: &um0T, out: umtrueT}, // use "false" so test will fail if custom unmarshaler is not called
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{in: `"X"`, ptr: &umpT, out: &umtrueT},
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{in: `["X"]`, ptr: &umsliceT, out: umsliceT},
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{in: `["X"]`, ptr: &umslicepT, out: &umsliceT},
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{in: `{"M":"X"}`, ptr: &umstructT, out: umstructT},
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{
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in: `{
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"Level0": 1,
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"Level1b": 2,
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"Level1c": 3,
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"x": 4,
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"Level1a": 5,
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"LEVEL1B": 6,
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"e": {
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"Level1a": 8,
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"Level1b": 9,
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"Level1c": 10,
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"Level1d": 11,
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"x": 12
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},
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"Loop1": 13,
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"Loop2": 14,
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"X": 15,
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"Y": 16,
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"Z": 17
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}`,
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ptr: new(Top),
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out: Top{
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Level0: 1,
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Embed0: Embed0{
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Level1b: 2,
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Level1c: 3,
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},
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Embed0a: &Embed0a{
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Level1a: 5,
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Level1b: 6,
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},
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Embed0b: &Embed0b{
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Level1a: 8,
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Level1b: 9,
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Level1c: 10,
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Level1d: 11,
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Level1e: 12,
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},
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Loop: Loop{
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Loop1: 13,
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Loop2: 14,
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},
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Embed0p: Embed0p{
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Point: image.Point{X: 15, Y: 16},
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},
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Embed0q: Embed0q{
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Point: Point{Z: 17},
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},
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},
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},
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{
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in: `{"hello": 1}`,
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ptr: new(Ambig),
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out: Ambig{First: 1},
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},
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{
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in: `{"X": 1,"Y":2}`,
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ptr: new(S5),
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out: S5{S8: S8{S9: S9{Y: 2}}},
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},
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{
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in: `{"X": 1,"Y":2}`,
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ptr: new(S10),
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out: S10{S13: S13{S8: S8{S9: S9{Y: 2}}}},
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},
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// invalid UTF-8 is coerced to valid UTF-8.
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{
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in: "\"hello\xffworld\"",
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ptr: new(string),
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out: "hello\ufffdworld",
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},
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{
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in: "\"hello\xc2\xc2world\"",
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ptr: new(string),
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out: "hello\ufffd\ufffdworld",
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},
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{
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in: "\"hello\xc2\xffworld\"",
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ptr: new(string),
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out: "hello\ufffd\ufffdworld",
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},
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{
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in: "\"hello\\ud800world\"",
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ptr: new(string),
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out: "hello\ufffdworld",
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},
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{
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in: "\"hello\\ud800\\ud800world\"",
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ptr: new(string),
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out: "hello\ufffd\ufffdworld",
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},
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{
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in: "\"hello\\ud800\\ud800world\"",
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ptr: new(string),
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out: "hello\ufffd\ufffdworld",
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},
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{
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in: "\"hello\xed\xa0\x80\xed\xb0\x80world\"",
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ptr: new(string),
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out: "hello\ufffd\ufffd\ufffd\ufffd\ufffd\ufffdworld",
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},
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// issue 8305
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{
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in: `{"2009-11-10T23:00:00Z": "hello world"}`,
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ptr: &map[time.Time]string{},
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err: &UnmarshalTypeError{"object", reflect.TypeOf(map[time.Time]string{})},
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},
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}
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func TestMarshal(t *testing.T) {
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b, err := Marshal(allValue)
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if err != nil {
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t.Fatalf("Marshal allValue: %v", err)
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}
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if string(b) != allValueCompact {
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t.Errorf("Marshal allValueCompact")
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diff(t, b, []byte(allValueCompact))
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return
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}
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b, err = Marshal(pallValue)
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if err != nil {
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t.Fatalf("Marshal pallValue: %v", err)
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}
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if string(b) != pallValueCompact {
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t.Errorf("Marshal pallValueCompact")
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diff(t, b, []byte(pallValueCompact))
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return
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}
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}
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var badUTF8 = []struct {
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in, out string
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}{
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{"hello\xffworld", `"hello\ufffdworld"`},
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{"", `""`},
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{"\xff", `"\ufffd"`},
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{"\xff\xff", `"\ufffd\ufffd"`},
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{"a\xffb", `"a\ufffdb"`},
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{"\xe6\x97\xa5\xe6\x9c\xac\xff\xaa\x9e", `"日本\ufffd\ufffd\ufffd"`},
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}
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func TestMarshalBadUTF8(t *testing.T) {
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for _, tt := range badUTF8 {
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b, err := Marshal(tt.in)
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if string(b) != tt.out || err != nil {
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t.Errorf("Marshal(%q) = %#q, %v, want %#q, nil", tt.in, b, err, tt.out)
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}
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}
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}
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func TestMarshalNumberZeroVal(t *testing.T) {
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var n Number
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out, err := Marshal(n)
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if err != nil {
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t.Fatal(err)
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}
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outStr := string(out)
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if outStr != "0" {
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t.Fatalf("Invalid zero val for Number: %q", outStr)
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}
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}
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func TestMarshalEmbeds(t *testing.T) {
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top := &Top{
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Level0: 1,
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Embed0: Embed0{
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Level1b: 2,
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Level1c: 3,
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},
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Embed0a: &Embed0a{
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Level1a: 5,
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Level1b: 6,
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},
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Embed0b: &Embed0b{
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Level1a: 8,
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Level1b: 9,
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Level1c: 10,
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Level1d: 11,
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Level1e: 12,
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},
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Loop: Loop{
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Loop1: 13,
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Loop2: 14,
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},
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Embed0p: Embed0p{
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Point: image.Point{X: 15, Y: 16},
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},
|
|
Embed0q: Embed0q{
|
|
Point: Point{Z: 17},
|
|
},
|
|
}
|
|
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}"
|
|
if string(b) != want {
|
|
t.Errorf("Wrong marshal result.\n got: %q\nwant: %q", b, want)
|
|
}
|
|
}
|
|
|
|
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)
|
|
data, _ := Marshal(v.Elem().Interface())
|
|
println(string(data))
|
|
data, _ = Marshal(tt.out)
|
|
println(string(data))
|
|
continue
|
|
}
|
|
|
|
// Check round trip.
|
|
if tt.err == nil {
|
|
enc, err := Marshal(v.Interface())
|
|
if err != nil {
|
|
t.Errorf("#%d: error re-marshaling: %v", i, err)
|
|
continue
|
|
}
|
|
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 interface{}
|
|
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 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")
|
|
}
|
|
}
|
|
|
|
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`},
|
|
}
|
|
|
|
// 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(c) {
|
|
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")
|
|
}
|
|
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 interface{}
|
|
json string
|
|
post interface{}
|
|
}{
|
|
{"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 interface{} }{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)
|
|
}
|
|
}
|
|
}
|
|
|
|
// JSON null values should be ignored for primitives and string values instead of resulting in an error.
|
|
// Issue 2540
|
|
func TestUnmarshalNulls(t *testing.T) {
|
|
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}`)
|
|
|
|
nulls := All{
|
|
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"}
|
|
|
|
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")
|
|
}
|
|
}
|
|
|
|
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 marshalling: %v", err)
|
|
}
|
|
|
|
err = Unmarshal(data, &m2)
|
|
if err != nil {
|
|
t.Errorf("Unexpected error unmarshalling: %v", err)
|
|
}
|
|
|
|
if !reflect.DeepEqual(m1, m2) {
|
|
t.Error("Items should be equal after encoding and then decoding")
|
|
}
|
|
|
|
}
|
|
|
|
var decodeTypeErrorTests = []struct {
|
|
dest interface{}
|
|
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 interface{}
|
|
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]interface{} `json:"-"`
|
|
m2 map[string]interface{} `json:"abcd"`
|
|
}
|
|
|
|
func TestUnmarshalUnexported(t *testing.T) {
|
|
input := `{"Name": "Bob", "m": {"x": 123}, "m2": {"y": 456}, "abcd": {"z": 789}}`
|
|
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]interface{}
|
|
|
|
err := Unmarshal([]byte(json), &dest)
|
|
if err != nil {
|
|
t.Errorf("got error %q, want nil", err)
|
|
}
|
|
}
|
|
|
|
// Test semantics of pre-filled struct fields and pre-filled map fields.
|
|
// Issue 4900.
|
|
func TestPrefilled(t *testing.T) {
|
|
ptrToMap := func(m map[string]interface{}) *map[string]interface{} { return &m }
|
|
|
|
// Values here change, cannot reuse table across runs.
|
|
var prefillTests = []struct {
|
|
in string
|
|
ptr interface{}
|
|
out interface{}
|
|
}{
|
|
{
|
|
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: ptrToMap(map[string]interface{}{"X": float32(3), "Y": int16(4), "Z": 1.5}),
|
|
out: ptrToMap(map[string]interface{}{"X": float64(1), "Y": float64(2), "Z": 1.5}),
|
|
},
|
|
}
|
|
|
|
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 interface{}
|
|
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)
|
|
}
|
|
}
|
|
}
|