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decoder_test.go
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decoder_test.go
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package test
import (
"bytes"
"fmt"
"github.com/json-iterator/go"
"github.com/stretchr/testify/require"
"strconv"
"testing"
"time"
"unsafe"
)
func Test_customize_type_decoder(t *testing.T) {
t.Skip()
jsoniter.RegisterTypeDecoderFunc("time.Time", func(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
t, err := time.ParseInLocation("2006-01-02 15:04:05", iter.ReadString(), time.UTC)
if err != nil {
iter.Error = err
return
}
*((*time.Time)(ptr)) = t
})
//defer jsoniter.ConfigDefault.(*frozenConfig).cleanDecoders()
val := time.Time{}
err := jsoniter.Unmarshal([]byte(`"2016-12-05 08:43:28"`), &val)
if err != nil {
t.Fatal(err)
}
year, month, day := val.Date()
if year != 2016 || month != 12 || day != 5 {
t.Fatal(val)
}
}
func Test_customize_byte_array_encoder(t *testing.T) {
t.Skip()
//jsoniter.ConfigDefault.(*frozenConfig).cleanEncoders()
should := require.New(t)
jsoniter.RegisterTypeEncoderFunc("[]uint8", func(ptr unsafe.Pointer, stream *jsoniter.Stream) {
t := *((*[]byte)(ptr))
stream.WriteString(string(t))
}, nil)
//defer jsoniter.ConfigDefault.(*frozenConfig).cleanEncoders()
val := []byte("abc")
str, err := jsoniter.MarshalToString(val)
should.Nil(err)
should.Equal(`"abc"`, str)
}
type CustomEncoderAttachmentTestStruct struct {
Value int32 `json:"value"`
}
type CustomEncoderAttachmentTestStructEncoder struct {}
func (c *CustomEncoderAttachmentTestStructEncoder) Encode(ptr unsafe.Pointer, stream *jsoniter.Stream) {
attachVal, ok := stream.Attachment.(int)
stream.WriteRaw(`"`)
stream.WriteRaw(fmt.Sprintf("%t %d", ok, attachVal))
stream.WriteRaw(`"`)
}
func (c *CustomEncoderAttachmentTestStructEncoder) IsEmpty(ptr unsafe.Pointer) bool {
return false
}
func Test_custom_encoder_attachment(t *testing.T) {
jsoniter.RegisterTypeEncoder("test.CustomEncoderAttachmentTestStruct", &CustomEncoderAttachmentTestStructEncoder{})
expectedValue := 17
should := require.New(t)
buf := &bytes.Buffer{}
stream := jsoniter.NewStream(jsoniter.Config{SortMapKeys: true}.Froze(), buf, 4096)
stream.Attachment = expectedValue
val := map[string]CustomEncoderAttachmentTestStruct{"a": {}}
stream.WriteVal(val)
stream.Flush()
should.Nil(stream.Error)
should.Equal("{\"a\":\"true 17\"}", buf.String())
}
func Test_customize_field_decoder(t *testing.T) {
type Tom struct {
field1 string
}
jsoniter.RegisterFieldDecoderFunc("jsoniter.Tom", "field1", func(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
*((*string)(ptr)) = strconv.Itoa(iter.ReadInt())
})
//defer jsoniter.ConfigDefault.(*frozenConfig).cleanDecoders()
tom := Tom{}
err := jsoniter.Unmarshal([]byte(`{"field1": 100}`), &tom)
if err != nil {
t.Fatal(err)
}
}
func Test_recursive_empty_interface_customization(t *testing.T) {
t.Skip()
var obj interface{}
jsoniter.RegisterTypeDecoderFunc("interface {}", func(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
switch iter.WhatIsNext() {
case jsoniter.NumberValue:
*(*interface{})(ptr) = iter.ReadInt64()
default:
*(*interface{})(ptr) = iter.Read()
}
})
should := require.New(t)
jsoniter.Unmarshal([]byte("[100]"), &obj)
should.Equal([]interface{}{int64(100)}, obj)
}
type MyInterface interface {
Hello() string
}
type MyString string
func (ms MyString) Hello() string {
return string(ms)
}
func Test_read_custom_interface(t *testing.T) {
t.Skip()
should := require.New(t)
var val MyInterface
jsoniter.RegisterTypeDecoderFunc("jsoniter.MyInterface", func(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
*((*MyInterface)(ptr)) = MyString(iter.ReadString())
})
err := jsoniter.UnmarshalFromString(`"hello"`, &val)
should.Nil(err)
should.Equal("hello", val.Hello())
}
const flow1 = `
{"A":"hello"}
{"A":"hello"}
{"A":"hello"}
{"A":"hello"}
{"A":"hello"}`
const flow2 = `
{"A":"hello"}
{"A":"hello"}
{"A":"hello"}
{"A":"hello"}
{"A":"hello"}
`
type (
Type1 struct {
A string
}
Type2 struct {
A string
}
)
func (t *Type2) UnmarshalJSON(data []byte) error {
return nil
}
func (t *Type2) MarshalJSON() ([]byte, error) {
return nil, nil
}
func TestType1NoFinalLF(t *testing.T) {
reader := bytes.NewReader([]byte(flow1))
dec := jsoniter.NewDecoder(reader)
i := 0
for dec.More() {
data := &Type1{}
if err := dec.Decode(data); err != nil {
t.Errorf("at %v got %v", i, err)
}
i++
}
}
func TestType1FinalLF(t *testing.T) {
reader := bytes.NewReader([]byte(flow2))
dec := jsoniter.NewDecoder(reader)
i := 0
for dec.More() {
data := &Type1{}
if err := dec.Decode(data); err != nil {
t.Errorf("at %v got %v", i, err)
}
i++
}
}
func TestType2NoFinalLF(t *testing.T) {
reader := bytes.NewReader([]byte(flow1))
dec := jsoniter.NewDecoder(reader)
i := 0
for dec.More() {
data := &Type2{}
if err := dec.Decode(data); err != nil {
t.Errorf("at %v got %v", i, err)
}
i++
}
}
func TestType2FinalLF(t *testing.T) {
reader := bytes.NewReader([]byte(flow2))
dec := jsoniter.NewDecoder(reader)
i := 0
for dec.More() {
data := &Type2{}
if err := dec.Decode(data); err != nil {
t.Errorf("at %v got %v", i, err)
}
i++
}
}