-
Notifications
You must be signed in to change notification settings - Fork 0
/
decode_test.go
2224 lines (2015 loc) · 53.5 KB
/
decode_test.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
// 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"
"encoding"
"errors"
"fmt"
"image"
"math"
"math/big"
"net"
"reflect"
"strconv"
"strings"
"testing"
"time"
)
type T struct {
X string
Y int
Z int `json:"-"`
}
type U struct {
Alphabet string `json:"alpha"`
}
type V struct {
F1 interface{}
F2 int32
F3 Number
F4 *VOuter
}
type VOuter struct {
V V
}
// ifaceNumAsFloat64/ifaceNumAsNumber are used to test unmarshaling with and
// without UseNumber
var ifaceNumAsFloat64 = map[string]interface{}{
"k1": float64(1),
"k2": "s",
"k3": []interface{}{float64(1), float64(2.0), float64(3e-3)},
"k4": map[string]interface{}{"kk1": "s", "kk2": float64(2)},
}
var ifaceNumAsNumber = map[string]interface{}{
"k1": Number("1"),
"k2": "s",
"k3": []interface{}{Number("1"), Number("2.0"), Number("3e-3")},
"k4": map[string]interface{}{"kk1": "s", "kk2": Number("2")},
}
type tx struct {
x int
}
type u8 uint8
// A type that can unmarshal itself.
type unmarshaler struct {
T bool
}
func (u *unmarshaler) UnmarshalJSON(b []byte) error {
*u = unmarshaler{true} // All we need to see that UnmarshalJSON is called.
return nil
}
type ustruct struct {
M unmarshaler
}
type unmarshalerText struct {
A, B string
}
// needed for re-marshaling tests
func (u unmarshalerText) MarshalText() ([]byte, error) {
return []byte(u.A + ":" + u.B), nil
}
func (u *unmarshalerText) UnmarshalText(b []byte) error {
pos := bytes.IndexByte(b, ':')
if pos == -1 {
return errors.New("missing separator")
}
u.A, u.B = string(b[:pos]), string(b[pos+1:])
return nil
}
var _ encoding.TextUnmarshaler = (*unmarshalerText)(nil)
type ustructText struct {
M unmarshalerText
}
// u8marshal is an integer type that can marshal/unmarshal itself.
type u8marshal uint8
func (u8 u8marshal) MarshalText() ([]byte, error) {
return []byte(fmt.Sprintf("u%d", u8)), nil
}
var errMissingU8Prefix = errors.New("missing 'u' prefix")
func (u8 *u8marshal) UnmarshalText(b []byte) error {
if !bytes.HasPrefix(b, []byte{'u'}) {
return errMissingU8Prefix
}
n, err := strconv.Atoi(string(b[1:]))
if err != nil {
return err
}
*u8 = u8marshal(n)
return nil
}
var _ encoding.TextUnmarshaler = (*u8marshal)(nil)
var (
um0, um1 unmarshaler // target2 of unmarshaling
ump = &um1
umtrue = unmarshaler{true}
umslice = []unmarshaler{{true}}
umslicep = new([]unmarshaler)
umstruct = ustruct{unmarshaler{true}}
um0T, um1T unmarshalerText // target2 of unmarshaling
umpType = &um1T
umtrueXY = unmarshalerText{"x", "y"}
umsliceXY = []unmarshalerText{{"x", "y"}}
umslicepType = new([]unmarshalerText)
umstructType = new(ustructText)
umstructXY = ustructText{unmarshalerText{"x", "y"}}
ummapType = map[unmarshalerText]bool{}
ummapXY = map[unmarshalerText]bool{unmarshalerText{"x", "y"}: true}
)
// Test data structures for anonymous fields.
type Point struct {
Z int
}
type Top struct {
Level0 int
Embed0
*Embed0a
*Embed0b `json:"e,omitempty"` // treated as named
Embed0c `json:"-"` // ignored
Loop
Embed0p // has Point with X, Y, used
Embed0q // has Point with Z, used
embed // contains exported field
}
type Embed0 struct {
Level1a int // overridden by Embed0a's Level1a with json tag
Level1b int // used because Embed0a's Level1b is renamed
Level1c int // used because Embed0a's Level1c is ignored
Level1d int // annihilated by Embed0a's Level1d
Level1e int `json:"x"` // annihilated by Embed0a.Level1e
}
type Embed0a struct {
Level1a int `json:"Level1a,omitempty"`
Level1b int `json:"LEVEL1B,omitempty"`
Level1c int `json:"-"`
Level1d int // annihilated by Embed0's Level1d
Level1f int `json:"x"` // annihilated by Embed0's Level1e
}
type Embed0b Embed0
type Embed0c Embed0
type Embed0p struct {
image.Point
}
type Embed0q struct {
Point
}
type embed struct {
Q int
}
type Loop struct {
Loop1 int `json:",omitempty"`
Loop2 int `json:",omitempty"`
*Loop
}
// From reflect test:
// The X in S6 and S7 annihilate, but they also block the X in S8.S9.
type S5 struct {
S6
S7
S8
}
type S6 struct {
X int
}
type S7 S6
type S8 struct {
S9
}
type S9 struct {
X int
Y int
}
// From reflect test:
// The X in S11.S6 and S12.S6 annihilate, but they also block the X in S13.S8.S9.
type S10 struct {
S11
S12
S13
}
type S11 struct {
S6
}
type S12 struct {
S6
}
type S13 struct {
S8
}
type Ambig struct {
// Given "hello", the first match should win.
First int `json:"HELLO"`
Second int `json:"Hello"`
}
type XYZ struct {
X interface{}
Y interface{}
Z interface{}
}
func sliceAddr(x []int) *[]int { return &x }
func mapAddr(x map[string]int) *map[string]int { return &x }
type byteWithMarshalJSON byte
func (b byteWithMarshalJSON) MarshalJSON() ([]byte, error) {
return []byte(fmt.Sprintf(`"Z%.2x"`, byte(b))), nil
}
func (b *byteWithMarshalJSON) UnmarshalJSON(data []byte) error {
if len(data) != 5 || data[0] != '"' || data[1] != 'Z' || data[4] != '"' {
return fmt.Errorf("bad quoted string")
}
i, err := strconv.ParseInt(string(data[2:4]), 16, 8)
if err != nil {
return fmt.Errorf("bad hex")
}
*b = byteWithMarshalJSON(i)
return nil
}
type byteWithPtrMarshalJSON byte
func (b *byteWithPtrMarshalJSON) MarshalJSON() ([]byte, error) {
return byteWithMarshalJSON(*b).MarshalJSON()
}
func (b *byteWithPtrMarshalJSON) UnmarshalJSON(data []byte) error {
return (*byteWithMarshalJSON)(b).UnmarshalJSON(data)
}
type byteWithMarshalText byte
func (b byteWithMarshalText) MarshalText() ([]byte, error) {
return []byte(fmt.Sprintf(`Z%.2x`, byte(b))), nil
}
func (b *byteWithMarshalText) UnmarshalText(data []byte) error {
if len(data) != 3 || data[0] != 'Z' {
return fmt.Errorf("bad quoted string")
}
i, err := strconv.ParseInt(string(data[1:3]), 16, 8)
if err != nil {
return fmt.Errorf("bad hex")
}
*b = byteWithMarshalText(i)
return nil
}
type byteWithPtrMarshalText byte
func (b *byteWithPtrMarshalText) MarshalText() ([]byte, error) {
return byteWithMarshalText(*b).MarshalText()
}
func (b *byteWithPtrMarshalText) UnmarshalText(data []byte) error {
return (*byteWithMarshalText)(b).UnmarshalText(data)
}
type intWithMarshalJSON int
func (b intWithMarshalJSON) MarshalJSON() ([]byte, error) {
return []byte(fmt.Sprintf(`"Z%.2x"`, int(b))), nil
}
func (b *intWithMarshalJSON) UnmarshalJSON(data []byte) error {
if len(data) != 5 || data[0] != '"' || data[1] != 'Z' || data[4] != '"' {
return fmt.Errorf("bad quoted string")
}
i, err := strconv.ParseInt(string(data[2:4]), 16, 8)
if err != nil {
return fmt.Errorf("bad hex")
}
*b = intWithMarshalJSON(i)
return nil
}
type intWithPtrMarshalJSON int
func (b *intWithPtrMarshalJSON) MarshalJSON() ([]byte, error) {
return intWithMarshalJSON(*b).MarshalJSON()
}
func (b *intWithPtrMarshalJSON) UnmarshalJSON(data []byte) error {
return (*intWithMarshalJSON)(b).UnmarshalJSON(data)
}
type intWithMarshalText int
func (b intWithMarshalText) MarshalText() ([]byte, error) {
return []byte(fmt.Sprintf(`Z%.2x`, int(b))), nil
}
func (b *intWithMarshalText) UnmarshalText(data []byte) error {
if len(data) != 3 || data[0] != 'Z' {
return fmt.Errorf("bad quoted string")
}
i, err := strconv.ParseInt(string(data[1:3]), 16, 8)
if err != nil {
return fmt.Errorf("bad hex")
}
*b = intWithMarshalText(i)
return nil
}
type intWithPtrMarshalText int
func (b *intWithPtrMarshalText) MarshalText() ([]byte, error) {
return intWithMarshalText(*b).MarshalText()
}
func (b *intWithPtrMarshalText) UnmarshalText(data []byte) error {
return (*intWithMarshalText)(b).UnmarshalText(data)
}
type unmarshalTest struct {
in string
ptr interface{}
out interface{}
err error
useNumber bool
golden bool
disallowUnknownFields bool
}
type B struct {
B bool `json:",string"`
}
var unmarshalTests = []unmarshalTest{
// basic types
{in: `true`, ptr: new(bool), out: true},
{in: `1`, ptr: new(int), out: 1},
{in: `1.2`, ptr: new(float64), out: 1.2},
{in: `-5`, ptr: new(int16), out: int16(-5)},
{in: `2`, ptr: new(Number), out: Number("2"), useNumber: true},
{in: `2`, ptr: new(Number), out: Number("2")},
{in: `2`, ptr: new(interface{}), out: float64(2.0)},
{in: `2`, ptr: new(interface{}), out: Number("2"), useNumber: true},
{in: `"a\u1234"`, ptr: new(string), out: "a\u1234"},
{in: `"http:\/\/"`, ptr: new(string), out: "http://"},
{in: `"g-clef: \uD834\uDD1E"`, ptr: new(string), out: "g-clef: \U0001D11E"},
{in: `"invalid: \uD834x\uDD1E"`, ptr: new(string), out: "invalid: \uFFFDx\uFFFD"},
{in: "null", ptr: new(interface{}), out: nil},
{in: `{"X": [1,2,3], "Y": 4}`, ptr: new(T), out: T{Y: 4}, err: &UnmarshalTypeError{"array", reflect.TypeOf(""), 7, "T", "X"}},
{in: `{"x": 1}`, ptr: new(tx), out: tx{}},
{in: `{"x": 1}`, ptr: new(tx), err: fmt.Errorf("json: unknown field \"x\""), disallowUnknownFields: true},
{in: `{"F1":1,"F2":2,"F3":3}`, ptr: new(V), out: V{F1: float64(1), F2: int32(2), F3: Number("3")}},
{in: `{"F1":1,"F2":2,"F3":3}`, ptr: new(V), out: V{F1: Number("1"), F2: int32(2), F3: Number("3")}, useNumber: true},
{in: `{"k1":1,"k2":"s","k3":[1,2.0,3e-3],"k4":{"kk1":"s","kk2":2}}`, ptr: new(interface{}), out: ifaceNumAsFloat64},
{in: `{"k1":1,"k2":"s","k3":[1,2.0,3e-3],"k4":{"kk1":"s","kk2":2}}`, ptr: new(interface{}), out: ifaceNumAsNumber, useNumber: true},
// raw values with whitespace
{in: "\n true ", ptr: new(bool), out: true},
{in: "\t 1 ", ptr: new(int), out: 1},
{in: "\r 1.2 ", ptr: new(float64), out: 1.2},
{in: "\t -5 \n", ptr: new(int16), out: int16(-5)},
{in: "\t \"a\\u1234\" \n", ptr: new(string), out: "a\u1234"},
// Z has a "-" tag.
{in: `{"Y": 1, "Z": 2}`, ptr: new(T), out: T{Y: 1}},
{in: `{"Y": 1, "Z": 2}`, ptr: new(T), err: fmt.Errorf("json: unknown field \"Z\""), disallowUnknownFields: true},
{in: `{"alpha": "abc", "alphabet": "xyz"}`, ptr: new(U), out: U{Alphabet: "abc"}},
{in: `{"alpha": "abc", "alphabet": "xyz"}`, ptr: new(U), err: fmt.Errorf("json: unknown field \"alphabet\""), disallowUnknownFields: true},
{in: `{"alpha": "abc"}`, ptr: new(U), out: U{Alphabet: "abc"}},
{in: `{"alphabet": "xyz"}`, ptr: new(U), out: U{}},
{in: `{"alphabet": "xyz"}`, ptr: new(U), err: fmt.Errorf("json: unknown field \"alphabet\""), disallowUnknownFields: true},
// syntax errors
{in: `{"X": "foo", "Y"}`, err: &SyntaxError{"invalid character '}' after object key", 17}},
{in: `[1, 2, 3+]`, err: &SyntaxError{"invalid character '+' after array element", 9}},
{in: `{"X":12x}`, err: &SyntaxError{"invalid character 'x' after object key:value pair", 8}, useNumber: true},
// raw value errors
{in: "\x01 42", err: &SyntaxError{"invalid character '\\x01' looking for beginning of value", 1}},
{in: " 42 \x01", err: &SyntaxError{"invalid character '\\x01' after top-level value", 5}},
{in: "\x01 true", err: &SyntaxError{"invalid character '\\x01' looking for beginning of value", 1}},
{in: " false \x01", err: &SyntaxError{"invalid character '\\x01' after top-level value", 8}},
{in: "\x01 1.2", err: &SyntaxError{"invalid character '\\x01' looking for beginning of value", 1}},
{in: " 3.4 \x01", err: &SyntaxError{"invalid character '\\x01' after top-level value", 6}},
{in: "\x01 \"string\"", err: &SyntaxError{"invalid character '\\x01' looking for beginning of value", 1}},
{in: " \"string\" \x01", err: &SyntaxError{"invalid character '\\x01' after top-level value", 11}},
// array tests
{in: `[1, 2, 3]`, ptr: new([3]int), out: [3]int{1, 2, 3}},
{in: `[1, 2, 3]`, ptr: new([1]int), out: [1]int{1}},
{in: `[1, 2, 3]`, ptr: new([5]int), out: [5]int{1, 2, 3, 0, 0}},
// empty array to interface test
{in: `[]`, ptr: new([]interface{}), out: []interface{}{}},
{in: `null`, ptr: new([]interface{}), out: []interface{}(nil)},
{in: `{"T":[]}`, ptr: new(map[string]interface{}), out: map[string]interface{}{"T": []interface{}{}}},
{in: `{"T":null}`, ptr: new(map[string]interface{}), out: map[string]interface{}{"T": interface{}(nil)}},
// composite tests
{in: allValueIndent, ptr: new(All), out: allValue},
{in: allValueCompact, ptr: new(All), out: allValue},
{in: allValueIndent, ptr: new(*All), out: &allValue},
{in: allValueCompact, ptr: new(*All), out: &allValue},
{in: pallValueIndent, ptr: new(All), out: pallValue},
{in: pallValueCompact, ptr: new(All), out: pallValue},
{in: pallValueIndent, ptr: new(*All), out: &pallValue},
{in: pallValueCompact, ptr: new(*All), out: &pallValue},
// unmarshal interface test
{in: `{"T":false}`, ptr: &um0, out: umtrue}, // use "false" so test will fail if custom unmarshaler is not called
{in: `{"T":false}`, ptr: &ump, out: &umtrue},
{in: `[{"T":false}]`, ptr: &umslice, out: umslice},
{in: `[{"T":false}]`, ptr: &umslicep, out: &umslice},
{in: `{"M":{"T":"x:y"}}`, ptr: &umstruct, out: umstruct},
// UnmarshalText interface test
{in: `"x:y"`, ptr: &um0T, out: umtrueXY},
{in: `"x:y"`, ptr: &umpType, out: &umtrueXY},
{in: `["x:y"]`, ptr: &umsliceXY, out: umsliceXY},
{in: `["x:y"]`, ptr: &umslicepType, out: &umsliceXY},
{in: `{"M":"x:y"}`, ptr: umstructType, out: umstructXY},
// integer-keyed map test
{
in: `{"-1":"a","0":"b","1":"c"}`,
ptr: new(map[int]string),
out: map[int]string{-1: "a", 0: "b", 1: "c"},
},
{
in: `{"0":"a","10":"c","9":"b"}`,
ptr: new(map[u8]string),
out: map[u8]string{0: "a", 9: "b", 10: "c"},
},
{
in: `{"-9223372036854775808":"min","9223372036854775807":"max"}`,
ptr: new(map[int64]string),
out: map[int64]string{math.MinInt64: "min", math.MaxInt64: "max"},
},
{
in: `{"18446744073709551615":"max"}`,
ptr: new(map[uint64]string),
out: map[uint64]string{math.MaxUint64: "max"},
},
{
in: `{"0":false,"10":true}`,
ptr: new(map[uintptr]bool),
out: map[uintptr]bool{0: false, 10: true},
},
// Check that MarshalText and UnmarshalText take precedence
// over default integer handling in map keys.
{
in: `{"u2":4}`,
ptr: new(map[u8marshal]int),
out: map[u8marshal]int{2: 4},
},
{
in: `{"2":4}`,
ptr: new(map[u8marshal]int),
err: errMissingU8Prefix,
},
// integer-keyed map errors
{
in: `{"abc":"abc"}`,
ptr: new(map[int]string),
err: &UnmarshalTypeError{Value: "number abc", Type: reflect.TypeOf(0), Offset: 2},
},
{
in: `{"256":"abc"}`,
ptr: new(map[uint8]string),
err: &UnmarshalTypeError{Value: "number 256", Type: reflect.TypeOf(uint8(0)), Offset: 2},
},
{
in: `{"128":"abc"}`,
ptr: new(map[int8]string),
err: &UnmarshalTypeError{Value: "number 128", Type: reflect.TypeOf(int8(0)), Offset: 2},
},
{
in: `{"-1":"abc"}`,
ptr: new(map[uint8]string),
err: &UnmarshalTypeError{Value: "number -1", Type: reflect.TypeOf(uint8(0)), Offset: 2},
},
// Map keys can be encoding.TextUnmarshalers.
{in: `{"x:y":true}`, ptr: &ummapType, out: ummapXY},
// If multiple values for the same key exists, only the most recent value is used.
{in: `{"x:y":false,"x:y":true}`, ptr: &ummapType, out: ummapXY},
// Overwriting of data.
// This is different from package xml, but it's what we've always done.
// Now documented and tested.
{in: `[2]`, ptr: sliceAddr([]int{1}), out: []int{2}},
{in: `{"key": 2}`, ptr: mapAddr(map[string]int{"old": 0, "key": 1}), out: map[string]int{"key": 2}},
{
in: `{
"Level0": 1,
"Level1b": 2,
"Level1c": 3,
"x": 4,
"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,
"Q": 18
}`,
ptr: new(Top),
out: Top{
Level0: 1,
Embed0: Embed0{
Level1b: 2,
Level1c: 3,
},
Embed0a: &Embed0a{
Level1a: 5,
Level1b: 6,
},
Embed0b: &Embed0b{
Level1a: 8,
Level1b: 9,
Level1c: 10,
Level1d: 11,
Level1e: 12,
},
Loop: Loop{
Loop1: 13,
Loop2: 14,
},
Embed0p: Embed0p{
Point: image.Point{X: 15, Y: 16},
},
Embed0q: Embed0q{
Point: Point{Z: 17},
},
embed: embed{
Q: 18,
},
},
},
{
in: `{"hello": 1}`,
ptr: new(Ambig),
out: Ambig{First: 1},
},
{
in: `{"X": 1,"Y":2}`,
ptr: new(S5),
out: S5{S8: S8{S9: S9{Y: 2}}},
},
{
in: `{"X": 1,"Y":2}`,
ptr: new(S5),
err: fmt.Errorf("json: unknown field \"X\""),
disallowUnknownFields: true,
},
{
in: `{"X": 1,"Y":2}`,
ptr: new(S10),
out: S10{S13: S13{S8: S8{S9: S9{Y: 2}}}},
},
{
in: `{"X": 1,"Y":2}`,
ptr: new(S10),
err: fmt.Errorf("json: unknown field \"X\""),
disallowUnknownFields: true,
},
// invalid UTF-8 is coerced to valid UTF-8.
{
in: "\"hello\xffworld\"",
ptr: new(string),
out: "hello\ufffdworld",
},
{
in: "\"hello\xc2\xc2world\"",
ptr: new(string),
out: "hello\ufffd\ufffdworld",
},
{
in: "\"hello\xc2\xffworld\"",
ptr: new(string),
out: "hello\ufffd\ufffdworld",
},
{
in: "\"hello\\ud800world\"",
ptr: new(string),
out: "hello\ufffdworld",
},
{
in: "\"hello\\ud800\\ud800world\"",
ptr: new(string),
out: "hello\ufffd\ufffdworld",
},
{
in: "\"hello\\ud800\\ud800world\"",
ptr: new(string),
out: "hello\ufffd\ufffdworld",
},
{
in: "\"hello\xed\xa0\x80\xed\xb0\x80world\"",
ptr: new(string),
out: "hello\ufffd\ufffd\ufffd\ufffd\ufffd\ufffdworld",
},
// Used to be issue 8305, but time.Time implements encoding.TextUnmarshaler so this works now.
{
in: `{"2009-11-10T23:00:00Z": "hello world"}`,
ptr: &map[time.Time]string{},
out: map[time.Time]string{time.Date(2009, 11, 10, 23, 0, 0, 0, time.UTC): "hello world"},
},
// issue 8305
{
in: `{"2009-11-10T23:00:00Z": "hello world"}`,
ptr: &map[Point]string{},
err: &UnmarshalTypeError{Value: "object", Type: reflect.TypeOf(map[Point]string{}), Offset: 1},
},
{
in: `{"asdf": "hello world"}`,
ptr: &map[unmarshaler]string{},
err: &UnmarshalTypeError{Value: "object", Type: reflect.TypeOf(map[unmarshaler]string{}), Offset: 1},
},
// related to issue 13783.
// Go 1.7 changed marshaling a slice of typed byte to use the methods on the byte type,
// similar to marshaling a slice of typed int.
// These tests check that, assuming the byte type also has valid decoding methods,
// either the old base64 string encoding or the new per-element encoding can be
// successfully unmarshaled. The custom unmarshalers were accessible in earlier
// versions of Go, even though the custom marshaler was not.
{
in: `"AQID"`,
ptr: new([]byteWithMarshalJSON),
out: []byteWithMarshalJSON{1, 2, 3},
},
{
in: `["Z01","Z02","Z03"]`,
ptr: new([]byteWithMarshalJSON),
out: []byteWithMarshalJSON{1, 2, 3},
golden: true,
},
{
in: `"AQID"`,
ptr: new([]byteWithMarshalText),
out: []byteWithMarshalText{1, 2, 3},
},
{
in: `["Z01","Z02","Z03"]`,
ptr: new([]byteWithMarshalText),
out: []byteWithMarshalText{1, 2, 3},
golden: true,
},
{
in: `"AQID"`,
ptr: new([]byteWithPtrMarshalJSON),
out: []byteWithPtrMarshalJSON{1, 2, 3},
},
{
in: `["Z01","Z02","Z03"]`,
ptr: new([]byteWithPtrMarshalJSON),
out: []byteWithPtrMarshalJSON{1, 2, 3},
golden: true,
},
{
in: `"AQID"`,
ptr: new([]byteWithPtrMarshalText),
out: []byteWithPtrMarshalText{1, 2, 3},
},
{
in: `["Z01","Z02","Z03"]`,
ptr: new([]byteWithPtrMarshalText),
out: []byteWithPtrMarshalText{1, 2, 3},
golden: true,
},
// ints work with the marshaler but not the base64 []byte case
{
in: `["Z01","Z02","Z03"]`,
ptr: new([]intWithMarshalJSON),
out: []intWithMarshalJSON{1, 2, 3},
golden: true,
},
{
in: `["Z01","Z02","Z03"]`,
ptr: new([]intWithMarshalText),
out: []intWithMarshalText{1, 2, 3},
golden: true,
},
{
in: `["Z01","Z02","Z03"]`,
ptr: new([]intWithPtrMarshalJSON),
out: []intWithPtrMarshalJSON{1, 2, 3},
golden: true,
},
{
in: `["Z01","Z02","Z03"]`,
ptr: new([]intWithPtrMarshalText),
out: []intWithPtrMarshalText{1, 2, 3},
golden: true,
},
{in: `0.000001`, ptr: new(float64), out: 0.000001, golden: true},
{in: `1e-7`, ptr: new(float64), out: 1e-7, golden: true},
{in: `100000000000000000000`, ptr: new(float64), out: 100000000000000000000.0, golden: true},
{in: `1e+21`, ptr: new(float64), out: 1e21, golden: true},
{in: `-0.000001`, ptr: new(float64), out: -0.000001, golden: true},
{in: `-1e-7`, ptr: new(float64), out: -1e-7, golden: true},
{in: `-100000000000000000000`, ptr: new(float64), out: -100000000000000000000.0, golden: true},
{in: `-1e+21`, ptr: new(float64), out: -1e21, golden: true},
{in: `999999999999999900000`, ptr: new(float64), out: 999999999999999900000.0, golden: true},
{in: `9007199254740992`, ptr: new(float64), out: 9007199254740992.0, golden: true},
{in: `9007199254740993`, ptr: new(float64), out: 9007199254740992.0, golden: false},
{
in: `{"V": {"F2": "hello"}}`,
ptr: new(VOuter),
err: &UnmarshalTypeError{
Value: "string",
Struct: "V",
Field: "F2",
Type: reflect.TypeOf(int32(0)),
Offset: 20,
},
},
{
in: `{"V": {"F4": {}, "F2": "hello"}}`,
ptr: new(VOuter),
err: &UnmarshalTypeError{
Value: "string",
Struct: "V",
Field: "F2",
Type: reflect.TypeOf(int32(0)),
Offset: 30,
},
},
// issue 15146.
// invalid inputs in wrongStringTests below.
{in: `{"B":"true"}`, ptr: new(B), out: B{true}, golden: true},
{in: `{"B":"false"}`, ptr: new(B), out: B{false}, golden: true},
{in: `{"B": "maybe"}`, ptr: new(B), err: errors.New(`json: invalid use of ,string struct tag, trying to unmarshal "maybe" into bool`)},
{in: `{"B": "tru"}`, ptr: new(B), err: errors.New(`json: invalid use of ,string struct tag, trying to unmarshal "tru" into bool`)},
{in: `{"B": "False"}`, ptr: new(B), err: errors.New(`json: invalid use of ,string struct tag, trying to unmarshal "False" into bool`)},
{in: `{"B": "null"}`, ptr: new(B), out: B{false}},
{in: `{"B": "nul"}`, ptr: new(B), err: errors.New(`json: invalid use of ,string struct tag, trying to unmarshal "nul" into bool`)},
// additional tests for disallowUnknownFields
{
in: `{
"Level0": 1,
"Level1b": 2,
"Level1c": 3,
"x": 4,
"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,
"Q": 18,
"extra": true
}`,
ptr: new(Top),
err: fmt.Errorf("json: unknown field \"extra\""),
disallowUnknownFields: true,
},
{
in: `{
"Level0": 1,
"Level1b": 2,
"Level1c": 3,
"x": 4,
"Level1a": 5,
"LEVEL1B": 6,
"e": {
"Level1a": 8,
"Level1b": 9,
"Level1c": 10,
"Level1d": 11,
"x": 12,
"extra": null
},
"Loop1": 13,
"Loop2": 14,
"X": 15,
"Y": 16,
"Z": 17,
"Q": 18
}`,
ptr: new(Top),
err: fmt.Errorf("json: unknown field \"extra\""),
disallowUnknownFields: true,
},
}
func TestMarshal(t *testing.T) {
b, err := Marshal(allValue)
if err != nil {
t.Fatalf("Marshal allValue: %v", err)
}
if string(b) != allValueCompact {
t.Errorf("Marshal allValueCompact")
diff(t, b, []byte(allValueCompact))
return
}
b, err = Marshal(pallValue)
if err != nil {
t.Fatalf("Marshal pallValue: %v", err)
}
if string(b) != pallValueCompact {
t.Errorf("Marshal pallValueCompact")
diff(t, b, []byte(pallValueCompact))
return
}
}
var badUTF8 = []struct {
in, out string
}{
{"hello\xffworld", `"hello\ufffdworld"`},
{"", `""`},
{"\xff", `"\ufffd"`},
{"\xff\xff", `"\ufffd\ufffd"`},
{"a\xffb", `"a\ufffdb"`},
{"\xe6\x97\xa5\xe6\x9c\xac\xff\xaa\x9e", `"日本\ufffd\ufffd\ufffd"`},
}
func TestMarshalBadUTF8(t *testing.T) {
for _, tt := range badUTF8 {
b, err := Marshal(tt.in)
if string(b) != tt.out || err != nil {
t.Errorf("Marshal(%q) = %#q, %v, want %#q, nil", tt.in, b, err, tt.out)
}
}
}
func TestMarshalNumberZeroVal(t *testing.T) {
var n Number
out, err := Marshal(n)
if err != nil {
t.Fatal(err)
}
outStr := string(out)
if outStr != "0" {
t.Fatalf("Invalid zero val for Number: %q", outStr)
}
}
func TestMarshalEmbeds(t *testing.T) {
top := &Top{
Level0: 1,
Embed0: Embed0{
Level1b: 2,
Level1c: 3,
},
Embed0a: &Embed0a{
Level1a: 5,
Level1b: 6,
},
Embed0b: &Embed0b{
Level1a: 8,
Level1b: 9,
Level1c: 10,
Level1d: 11,
Level1e: 12,
},
Loop: Loop{
Loop1: 13,
Loop2: 14,
},
Embed0p: Embed0p{
Point: image.Point{X: 15, Y: 16},
},
Embed0q: Embed0q{
Point: Point{Z: 17},
},
embed: embed{
Q: 18,
},
}
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,\"Q\":18}"
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 tt.disallowUnknownFields {
dec.DisallowUnknownFields()
}
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)