This repository has been archived on 2023-08-14. You can view files and clone it, but cannot push or open issues or pull requests.
dex/vendor/gopkg.in/square/go-jose.v2/json/stream_test.go
2016-07-26 15:51:24 -07:00

355 lines
8.3 KiB
Go
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

// 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"
"io"
"io/ioutil"
"log"
"net"
"net/http"
"net/http/httptest"
"reflect"
"strings"
"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{}{"": "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","":"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 TestDecoderBuffered(t *testing.T) {
r := strings.NewReader(`{"Name": "Gopher"} extra `)
var m struct {
Name string
}
d := NewDecoder(r)
err := d.Decode(&m)
if err != nil {
t.Fatal(err)
}
if m.Name != "Gopher" {
t.Errorf("Name = %q; want Gopher", m.Name)
}
rest, err := ioutil.ReadAll(d.Buffered())
if err != nil {
t.Fatal(err)
}
if g, w := string(rest), " extra "; g != w {
t.Errorf("Remaining = %q; want %q", g, w)
}
}
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)
}
}
var blockingTests = []string{
`{"x": 1}`,
`[1, 2, 3]`,
}
func TestBlocking(t *testing.T) {
for _, enc := range blockingTests {
r, w := net.Pipe()
go w.Write([]byte(enc))
var val interface{}
// If Decode reads beyond what w.Write writes above,
// it will block, and the test will deadlock.
if err := NewDecoder(r).Decode(&val); err != nil {
t.Errorf("decoding %s: %v", enc, err)
}
r.Close()
w.Close()
}
}
func BenchmarkEncoderEncode(b *testing.B) {
b.ReportAllocs()
type T struct {
X, Y string
}
v := &T{"foo", "bar"}
for i := 0; i < b.N; i++ {
if err := NewEncoder(ioutil.Discard).Encode(v); err != nil {
b.Fatal(err)
}
}
}
type tokenStreamCase struct {
json string
expTokens []interface{}
}
type decodeThis struct {
v interface{}
}
var tokenStreamCases []tokenStreamCase = []tokenStreamCase{
// streaming token cases
{json: `10`, expTokens: []interface{}{float64(10)}},
{json: ` [10] `, expTokens: []interface{}{
Delim('['), float64(10), Delim(']')}},
{json: ` [false,10,"b"] `, expTokens: []interface{}{
Delim('['), false, float64(10), "b", Delim(']')}},
{json: `{ "a": 1 }`, expTokens: []interface{}{
Delim('{'), "a", float64(1), Delim('}')}},
{json: `{"a": 1, "b":"3"}`, expTokens: []interface{}{
Delim('{'), "a", float64(1), "b", "3", Delim('}')}},
{json: ` [{"a": 1},{"a": 2}] `, expTokens: []interface{}{
Delim('['),
Delim('{'), "a", float64(1), Delim('}'),
Delim('{'), "a", float64(2), Delim('}'),
Delim(']')}},
{json: `{"obj": {"a": 1}}`, expTokens: []interface{}{
Delim('{'), "obj", Delim('{'), "a", float64(1), Delim('}'),
Delim('}')}},
{json: `{"obj": [{"a": 1}]}`, expTokens: []interface{}{
Delim('{'), "obj", Delim('['),
Delim('{'), "a", float64(1), Delim('}'),
Delim(']'), Delim('}')}},
// streaming tokens with intermittent Decode()
{json: `{ "a": 1 }`, expTokens: []interface{}{
Delim('{'), "a",
decodeThis{float64(1)},
Delim('}')}},
{json: ` [ { "a" : 1 } ] `, expTokens: []interface{}{
Delim('['),
decodeThis{map[string]interface{}{"a": float64(1)}},
Delim(']')}},
{json: ` [{"a": 1},{"a": 2}] `, expTokens: []interface{}{
Delim('['),
decodeThis{map[string]interface{}{"a": float64(1)}},
decodeThis{map[string]interface{}{"a": float64(2)}},
Delim(']')}},
{json: `{ "obj" : [ { "a" : 1 } ] }`, expTokens: []interface{}{
Delim('{'), "obj", Delim('['),
decodeThis{map[string]interface{}{"a": float64(1)}},
Delim(']'), Delim('}')}},
{json: `{"obj": {"a": 1}}`, expTokens: []interface{}{
Delim('{'), "obj",
decodeThis{map[string]interface{}{"a": float64(1)}},
Delim('}')}},
{json: `{"obj": [{"a": 1}]}`, expTokens: []interface{}{
Delim('{'), "obj",
decodeThis{[]interface{}{
map[string]interface{}{"a": float64(1)},
}},
Delim('}')}},
{json: ` [{"a": 1} {"a": 2}] `, expTokens: []interface{}{
Delim('['),
decodeThis{map[string]interface{}{"a": float64(1)}},
decodeThis{&SyntaxError{"expected comma after array element", 0}},
}},
{json: `{ "a" 1 }`, expTokens: []interface{}{
Delim('{'), "a",
decodeThis{&SyntaxError{"expected colon after object key", 0}},
}},
}
func TestDecodeInStream(t *testing.T) {
for ci, tcase := range tokenStreamCases {
dec := NewDecoder(strings.NewReader(tcase.json))
for i, etk := range tcase.expTokens {
var tk interface{}
var err error
if dt, ok := etk.(decodeThis); ok {
etk = dt.v
err = dec.Decode(&tk)
} else {
tk, err = dec.Token()
}
if experr, ok := etk.(error); ok {
if err == nil || err.Error() != experr.Error() {
t.Errorf("case %v: Expected error %v in %q, but was %v", ci, experr, tcase.json, err)
}
break
} else if err == io.EOF {
t.Errorf("case %v: Unexpected EOF in %q", ci, tcase.json)
break
} else if err != nil {
t.Errorf("case %v: Unexpected error '%v' in %q", ci, err, tcase.json)
break
}
if !reflect.DeepEqual(tk, etk) {
t.Errorf(`case %v: %q @ %v expected %T(%v) was %T(%v)`, ci, tcase.json, i, etk, etk, tk, tk)
break
}
}
}
}
// Test from golang.org/issue/11893
func TestHTTPDecoding(t *testing.T) {
const raw = `{ "foo": "bar" }`
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte(raw))
}))
defer ts.Close()
res, err := http.Get(ts.URL)
if err != nil {
log.Fatalf("GET failed: %v", err)
}
defer res.Body.Close()
foo := struct {
Foo string `json:"foo"`
}{}
d := NewDecoder(res.Body)
err = d.Decode(&foo)
if err != nil {
t.Fatalf("Decode: %v", err)
}
if foo.Foo != "bar" {
t.Errorf("decoded %q; want \"bar\"", foo.Foo)
}
// make sure we get the EOF the second time
err = d.Decode(&foo)
if err != io.EOF {
t.Errorf("err = %v; want io.EOF", err)
}
}