9c63abc9a1
From-SVN: r182073
148 lines
3.1 KiB
Go
148 lines
3.1 KiB
Go
// 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 json
|
||
|
||
import (
|
||
"bytes"
|
||
"reflect"
|
||
"testing"
|
||
)
|
||
|
||
// Test values for the stream test.
|
||
// One of each JSON kind.
|
||
var streamTest = []interface{}{
|
||
0.1,
|
||
"hello",
|
||
nil,
|
||
true,
|
||
false,
|
||
[]interface{}{"a", "b", "c"},
|
||
map[string]interface{}{"K": "Kelvin", "ß": "long s"},
|
||
3.14, // another value to make sure something can follow map
|
||
}
|
||
|
||
var streamEncoded = `0.1
|
||
"hello"
|
||
null
|
||
true
|
||
false
|
||
["a","b","c"]
|
||
{"ß":"long s","K":"Kelvin"}
|
||
3.14
|
||
`
|
||
|
||
func TestEncoder(t *testing.T) {
|
||
for i := 0; i <= len(streamTest); i++ {
|
||
var buf bytes.Buffer
|
||
enc := NewEncoder(&buf)
|
||
for j, v := range streamTest[0:i] {
|
||
if err := enc.Encode(v); err != nil {
|
||
t.Fatalf("encode #%d: %v", j, err)
|
||
}
|
||
}
|
||
if have, want := buf.String(), nlines(streamEncoded, i); have != want {
|
||
t.Errorf("encoding %d items: mismatch", i)
|
||
diff(t, []byte(have), []byte(want))
|
||
break
|
||
}
|
||
}
|
||
}
|
||
|
||
func TestDecoder(t *testing.T) {
|
||
for i := 0; i <= len(streamTest); i++ {
|
||
// Use stream without newlines as input,
|
||
// just to stress the decoder even more.
|
||
// Our test input does not include back-to-back numbers.
|
||
// Otherwise stripping the newlines would
|
||
// merge two adjacent JSON values.
|
||
var buf bytes.Buffer
|
||
for _, c := range nlines(streamEncoded, i) {
|
||
if c != '\n' {
|
||
buf.WriteRune(c)
|
||
}
|
||
}
|
||
out := make([]interface{}, i)
|
||
dec := NewDecoder(&buf)
|
||
for j := range out {
|
||
if err := dec.Decode(&out[j]); err != nil {
|
||
t.Fatalf("decode #%d/%d: %v", j, i, err)
|
||
}
|
||
}
|
||
if !reflect.DeepEqual(out, streamTest[0:i]) {
|
||
t.Errorf("decoding %d items: mismatch", i)
|
||
for j := range out {
|
||
if !reflect.DeepEqual(out[j], streamTest[j]) {
|
||
t.Errorf("#%d: have %v want %v", j, out[j], streamTest[j])
|
||
}
|
||
}
|
||
break
|
||
}
|
||
}
|
||
}
|
||
|
||
func nlines(s string, n int) string {
|
||
if n <= 0 {
|
||
return ""
|
||
}
|
||
for i, c := range s {
|
||
if c == '\n' {
|
||
if n--; n == 0 {
|
||
return s[0 : i+1]
|
||
}
|
||
}
|
||
}
|
||
return s
|
||
}
|
||
|
||
func TestRawMessage(t *testing.T) {
|
||
// TODO(rsc): Should not need the * in *RawMessage
|
||
var data struct {
|
||
X float64
|
||
Id *RawMessage
|
||
Y float32
|
||
}
|
||
const raw = `["\u0056",null]`
|
||
const msg = `{"X":0.1,"Id":["\u0056",null],"Y":0.2}`
|
||
err := Unmarshal([]byte(msg), &data)
|
||
if err != nil {
|
||
t.Fatalf("Unmarshal: %v", err)
|
||
}
|
||
if string([]byte(*data.Id)) != raw {
|
||
t.Fatalf("Raw mismatch: have %#q want %#q", []byte(*data.Id), raw)
|
||
}
|
||
b, err := Marshal(&data)
|
||
if err != nil {
|
||
t.Fatalf("Marshal: %v", err)
|
||
}
|
||
if string(b) != msg {
|
||
t.Fatalf("Marshal: have %#q want %#q", b, msg)
|
||
}
|
||
}
|
||
|
||
func TestNullRawMessage(t *testing.T) {
|
||
// TODO(rsc): Should not need the * in *RawMessage
|
||
var data struct {
|
||
X float64
|
||
Id *RawMessage
|
||
Y float32
|
||
}
|
||
data.Id = new(RawMessage)
|
||
const msg = `{"X":0.1,"Id":null,"Y":0.2}`
|
||
err := Unmarshal([]byte(msg), &data)
|
||
if err != nil {
|
||
t.Fatalf("Unmarshal: %v", err)
|
||
}
|
||
if data.Id != nil {
|
||
t.Fatalf("Raw mismatch: have non-nil, want nil")
|
||
}
|
||
b, err := Marshal(&data)
|
||
if err != nil {
|
||
t.Fatalf("Marshal: %v", err)
|
||
}
|
||
if string(b) != msg {
|
||
t.Fatalf("Marshal: have %#q want %#q", b, msg)
|
||
}
|
||
}
|