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
|
var assert = require('assert')
var jsonpointer = require('./jsonpointer')
var obj = {
a: 1,
b: {
c: 2
},
d: {
e: [{ a: 3 }, { b: 4 }, { c: 5 }]
}
}
assert.equal(jsonpointer.get(obj, '/a'), 1)
assert.equal(jsonpointer.get(obj, '/b/c'), 2)
assert.equal(jsonpointer.get(obj, '/d/e/0/a'), 3)
assert.equal(jsonpointer.get(obj, '/d/e/1/b'), 4)
assert.equal(jsonpointer.get(obj, '/d/e/2/c'), 5)
// set returns old value
assert.equal(jsonpointer.set(obj, '/a', 2), 1)
assert.equal(jsonpointer.set(obj, '/b/c', 3), 2)
assert.equal(jsonpointer.set(obj, '/d/e/0/a', 4), 3)
assert.equal(jsonpointer.set(obj, '/d/e/1/b', 5), 4)
assert.equal(jsonpointer.set(obj, '/d/e/2/c', 6), 5)
// set nested properties
assert.equal(jsonpointer.set(obj, '/f/g/h/i', 6), undefined)
assert.equal(jsonpointer.get(obj, '/f/g/h/i'), 6)
// set an array
assert.equal(jsonpointer.set(obj, '/f/g/h/foo/-', 'test'), undefined)
var arr = jsonpointer.get(obj, '/f/g/h/foo')
assert(Array.isArray(arr), 'set /- creates an array.')
assert.equal(arr[0], 'test')
assert.equal(jsonpointer.get(obj, '/a'), 2)
assert.equal(jsonpointer.get(obj, '/b/c'), 3)
assert.equal(jsonpointer.get(obj, '/d/e/0/a'), 4)
assert.equal(jsonpointer.get(obj, '/d/e/1/b'), 5)
assert.equal(jsonpointer.get(obj, '/d/e/2/c'), 6)
// can set `null` as a value
assert.equal(jsonpointer.set(obj, '/f/g/h/foo/0', null), 'test')
assert.strictEqual(jsonpointer.get(obj, '/f/g/h/foo/0'), null)
assert.equal(jsonpointer.set(obj, '/b/c', null), 3)
assert.strictEqual(jsonpointer.get(obj, '/b/c'), null)
assert.equal(jsonpointer.get(obj, ''), obj)
assert.throws(function () { jsonpointer.get(obj, 'a') }, validateError)
assert.throws(function () { jsonpointer.get(obj, 'a/') }, validateError)
// can unset values with `undefined`
jsonpointer.set(obj, '/a', undefined)
assert.strictEqual(jsonpointer.get(obj, '/a'), undefined)
jsonpointer.set(obj, '/d/e/1', undefined)
assert.strictEqual(jsonpointer.get(obj, '/d/e/1'), undefined)
// returns `undefined` when path extends beyond any existing objects
assert.strictEqual(jsonpointer.get(obj, '/x/y/z'), undefined)
function validateError (err) {
if ((err instanceof Error) && /Invalid JSON pointer/.test(err.message)) {
return true
}
}
var complexKeys = {
'a/b': {
c: 1
},
d: {
'e/f': 2
},
'~1': 3,
'01': 4
}
assert.equal(jsonpointer.get(complexKeys, '/a~1b/c'), 1)
assert.equal(jsonpointer.get(complexKeys, '/d/e~1f'), 2)
assert.equal(jsonpointer.get(complexKeys, '/~01'), 3)
assert.equal(jsonpointer.get(complexKeys, '/01'), 4)
assert.equal(jsonpointer.get(complexKeys, '/a/b/c'), null)
assert.equal(jsonpointer.get(complexKeys, '/~1'), null)
// draft-ietf-appsawg-json-pointer-08 has special array rules
var ary = [ 'zero', 'one', 'two' ]
assert.equal(jsonpointer.get(ary, '/01'), null)
assert.equal(jsonpointer.set(ary, '/-', 'three'), null)
assert.equal(ary[3], 'three')
// Examples from the draft:
var example = {
'foo': ['bar', 'baz'],
'': 0,
'a/b': 1,
'c%d': 2,
'e^f': 3,
'g|h': 4,
'i\\j': 5,
'k\'l': 6,
' ': 7,
'm~n': 8
}
assert.equal(jsonpointer.get(example, ''), example)
var ans = jsonpointer.get(example, '/foo')
assert.equal(ans.length, 2)
assert.equal(ans[0], 'bar')
assert.equal(ans[1], 'baz')
assert.equal(jsonpointer.get(example, '/foo/0'), 'bar')
assert.equal(jsonpointer.get(example, '/'), 0)
assert.equal(jsonpointer.get(example, '/a~1b'), 1)
assert.equal(jsonpointer.get(example, '/c%d'), 2)
assert.equal(jsonpointer.get(example, '/e^f'), 3)
assert.equal(jsonpointer.get(example, '/g|h'), 4)
assert.equal(jsonpointer.get(example, '/i\\j'), 5)
assert.equal(jsonpointer.get(example, '/k\'l'), 6)
assert.equal(jsonpointer.get(example, '/ '), 7)
assert.equal(jsonpointer.get(example, '/m~0n'), 8)
// jsonpointer.compile(path)
var a = {foo: 'bar'}
var pointer = jsonpointer.compile('/foo')
assert.equal(pointer.get(a), 'bar')
assert.equal(pointer.set(a, 'test'), 'bar')
assert.equal(pointer.get(a), 'test')
assert.deepEqual(a, {foo: 'test'})
console.log('All tests pass.')
|
