-
Notifications
You must be signed in to change notification settings - Fork 0
/
dynjson_test.go
191 lines (155 loc) · 5.88 KB
/
dynjson_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
// Copyright 2015 Michal Witkowski. All Rights Reserved.
// See LICENSE for licensing terms.
package dflag
import (
"errors"
"flag"
"fmt"
"testing"
"time"
"fortio.org/assert"
)
var defaultJSON = &outerJSON{
FieldInts: []int{1, 3, 3, 7},
FieldString: "non-empty",
FieldInner: &innerJSON{
FieldBool: true,
},
}
var JSONValue2 = &outerJSON{
FieldInts: []int{2, 3, 4, 5},
FieldString: "non-empty",
FieldInner: &innerJSON{
FieldBool: false,
},
}
var defaultJSONArray = &[]outerJSON{*defaultJSON, *JSONValue2}
func TestDynJSON_SetAndGet(t *testing.T) {
set := flag.NewFlagSet("foobar", flag.ContinueOnError)
dynFlag := DynJSON(set, "some_json_1", defaultJSON, "Use it or lose it")
assert.EqualValues(t, defaultJSON, dynFlag.Get(), "value must be default after create")
err := set.Set("some_json_1", `{"ints": [42], "string": "new-value", "inner": { "bool": false } }`)
assert.NoError(t, err, "setting value must succeed")
assert.EqualValues(t,
&outerJSON{FieldInts: []int{42}, FieldString: "new-value", FieldInner: &innerJSON{FieldBool: false}},
dynFlag.Get(),
"value must be set after update")
}
func TestDynJSON_IsMarkedDynamic(t *testing.T) {
set := flag.NewFlagSet("foobar", flag.ContinueOnError)
DynJSON(set, "some_json_1", defaultJSON, "Use it or lose it")
assert.True(t, IsFlagDynamic(set.Lookup("some_json_1")))
}
func TestDynJSON_FiresValidators(t *testing.T) {
set := flag.NewFlagSet("foobar", flag.ContinueOnError)
validator := func(val interface{}) error {
j, ok := val.(*outerJSON)
if !ok {
return fmt.Errorf("Bad type: %T", val)
}
if j.FieldString == "" {
return errors.New("FieldString must not be empty")
}
return nil
}
DynJSON(set, "some_json_1", defaultJSON, "Use it or lose it").WithValidator(validator)
assert.NoError(t, set.Set("some_json_1", `{"ints": [42], "string":"bar"}`), "no error from validator")
assert.Error(t, set.Set("some_json_1", `{"ints": [42]}`), "error from validator when value out of range")
}
func TestDynJSON_FiresNotifier(t *testing.T) {
waitCh := make(chan bool, 1)
notifier := func(oldVal interface{}, newVal interface{}) {
assert.EqualValues(t, defaultJSON, oldVal, "old value in notify must match previous value")
assert.EqualValues(t, &outerJSON{FieldInts: []int{42}, FieldString: "bar"}, newVal, "new value in notify must match set value")
waitCh <- true
}
set := flag.NewFlagSet("foobar", flag.ContinueOnError)
DynJSON(set, "some_json_1", defaultJSON, "Use it or lose it").WithNotifier(notifier)
err := set.Set("some_json_1", `{"ints": [42], "string":"bar"}`)
assert.NoError(t, err, "setting value must succeed")
select {
case <-time.After(notifierTimeout):
assert.Fail(t, "failed to trigger notifier")
case <-waitCh:
}
}
func TestDynJSON_InvalidInput(t *testing.T) {
defer func() {
if r := recover(); r == nil {
t.Errorf("Test function TestDynJSONArray_InvalidInput did not panic")
}
}()
invalidInput := "invalid"
set := flag.NewFlagSet("foobar", flag.ContinueOnError)
DynJSON(set, "some_json_array", &invalidInput, "Use it or lose it")
}
func TestDynJSONArray_SetAndGet(t *testing.T) {
set := flag.NewFlagSet("foobar", flag.ContinueOnError)
dynFlag := DynJSON(set, "some_json_array", defaultJSONArray, "Use it or lose it")
assert.EqualValues(t, defaultJSONArray, dynFlag.Get(), "value must be default after create")
err := set.Set("some_json_array", `[{"ints": [42], "string": "new-value", "inner": { "bool": false } },
{"ints": [24], "string": "new-value", "inner": { "bool": true } }]`)
assert.NoError(t, err, "setting value must succeed")
newJSONArray := &[]outerJSON{
{FieldInts: []int{42}, FieldString: "new-value", FieldInner: &innerJSON{FieldBool: false}},
{FieldInts: []int{24}, FieldString: "new-value", FieldInner: &innerJSON{FieldBool: true}},
}
assert.EqualValues(t,
newJSONArray,
dynFlag.Get(),
"value must be set after update")
}
func TestDynJSONArray_IsMarkedDynamic(t *testing.T) {
set := flag.NewFlagSet("foobar", flag.ContinueOnError)
DynJSON(set, "some_json_array", defaultJSONArray, "Use it or lose it")
assert.True(t, IsFlagDynamic(set.Lookup("some_json_array")))
}
func TestDynJSONArray_FiresValidators(t *testing.T) {
set := flag.NewFlagSet("foobar", flag.ContinueOnError)
validator := func(val interface{}) error {
j, ok := val.(*[]outerJSON)
if !ok {
return fmt.Errorf("Bad type: %T", val)
}
for _, v := range *j {
if v.FieldString == "" {
return errors.New("FieldString must not be empty")
}
}
return nil
}
DynJSON(set, "some_json_array", defaultJSONArray, "Use it or lose it").WithValidator(validator)
assert.NoError(t, set.Set("some_json_array",
`[{"ints": [42], "string":"bar"}, {"ints": [24], "string":"foo"}]`),
"no error from validator")
assert.Error(t, set.Set("some_json_array", `{"ints": [42]}`),
"error from validator when required value is missing")
}
func TestDynJSONArray_FiresNotifier(t *testing.T) {
waitCh := make(chan bool, 1)
notifier := func(oldVal interface{}, newVal interface{}) {
assert.EqualValues(t, defaultJSONArray, oldVal, "old value in notify must match previous value")
assert.EqualValues(t, &[]outerJSON{{
FieldInts: []int{42}, FieldString: "new-value",
FieldInner: &innerJSON{FieldBool: false},
}}, newVal, "new value in notify must match set value")
waitCh <- true
}
set := flag.NewFlagSet("foobar", flag.ContinueOnError)
DynJSON(set, "some_json_array", defaultJSONArray, "Use it or lose it").WithNotifier(notifier)
err := set.Set("some_json_array", `[{"ints": [42], "string": "new-value", "inner": { "bool": false }}]`)
assert.NoError(t, err, "setting value must succeed")
select {
case <-time.After(notifierTimeout):
assert.Fail(t, "failed to trigger notifier")
case <-waitCh:
}
}
type outerJSON struct {
FieldInts []int `json:"ints"`
FieldString string `json:"string"`
FieldInner *innerJSON `json:"inner"`
}
type innerJSON struct {
FieldBool bool `json:"bool"`
}