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mihomo/common/orderedmap/json_test.go

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package orderedmap
import (
"encoding/json"
"errors"
"fmt"
"strconv"
"strings"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
// to test marshalling TextMarshalers and unmarshalling TextUnmarshalers
type marshallable int
func (m marshallable) MarshalText() ([]byte, error) {
return []byte(fmt.Sprintf("#%d#", m)), nil
}
func (m *marshallable) UnmarshalText(text []byte) error {
if len(text) < 3 {
return errors.New("too short")
}
if text[0] != '#' || text[len(text)-1] != '#' {
return errors.New("missing prefix or suffix")
}
value, err := strconv.Atoi(string(text[1 : len(text)-1]))
if err != nil {
return err
}
*m = marshallable(value)
return nil
}
func TestMarshalJSON(t *testing.T) {
t.Run("int key", func(t *testing.T) {
om := New[int, any]()
om.Set(1, "bar")
om.Set(7, "baz")
om.Set(2, 28)
om.Set(3, 100)
om.Set(4, "baz")
om.Set(5, "28")
om.Set(6, "100")
om.Set(8, "baz")
om.Set(8, "baz")
om.Set(9, "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque auctor augue accumsan mi maximus, quis viverra massa pretium. Phasellus imperdiet sapien a interdum sollicitudin. Duis at commodo lectus, a lacinia sem.")
b, err := json.Marshal(om)
assert.NoError(t, err)
assert.Equal(t, `{"1":"bar","7":"baz","2":28,"3":100,"4":"baz","5":"28","6":"100","8":"baz","9":"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque auctor augue accumsan mi maximus, quis viverra massa pretium. Phasellus imperdiet sapien a interdum sollicitudin. Duis at commodo lectus, a lacinia sem."}`, string(b))
})
t.Run("string key", func(t *testing.T) {
om := New[string, any]()
om.Set("test", "bar")
om.Set("abc", true)
b, err := json.Marshal(om)
assert.NoError(t, err)
assert.Equal(t, `{"test":"bar","abc":true}`, string(b))
})
t.Run("typed string key", func(t *testing.T) {
type myString string
om := New[myString, any]()
om.Set("test", "bar")
om.Set("abc", true)
b, err := json.Marshal(om)
assert.NoError(t, err)
assert.Equal(t, `{"test":"bar","abc":true}`, string(b))
})
t.Run("typed int key", func(t *testing.T) {
type myInt uint32
om := New[myInt, any]()
om.Set(1, "bar")
om.Set(7, "baz")
om.Set(2, 28)
om.Set(3, 100)
om.Set(4, "baz")
b, err := json.Marshal(om)
assert.NoError(t, err)
assert.Equal(t, `{"1":"bar","7":"baz","2":28,"3":100,"4":"baz"}`, string(b))
})
t.Run("TextMarshaller key", func(t *testing.T) {
om := New[marshallable, any]()
om.Set(marshallable(1), "bar")
om.Set(marshallable(28), true)
b, err := json.Marshal(om)
assert.NoError(t, err)
assert.Equal(t, `{"#1#":"bar","#28#":true}`, string(b))
})
t.Run("empty map", func(t *testing.T) {
om := New[string, any]()
b, err := json.Marshal(om)
assert.NoError(t, err)
assert.Equal(t, `{}`, string(b))
})
}
func TestUnmarshallJSON(t *testing.T) {
t.Run("int key", func(t *testing.T) {
data := `{"1":"bar","7":"baz","2":28,"3":100,"4":"baz","5":"28","6":"100","8":"baz"}`
om := New[int, any]()
require.NoError(t, json.Unmarshal([]byte(data), &om))
assertOrderedPairsEqual(t, om,
[]int{1, 7, 2, 3, 4, 5, 6, 8},
[]any{"bar", "baz", float64(28), float64(100), "baz", "28", "100", "baz"})
})
t.Run("string key", func(t *testing.T) {
data := `{"test":"bar","abc":true}`
om := New[string, any]()
require.NoError(t, json.Unmarshal([]byte(data), &om))
assertOrderedPairsEqual(t, om,
[]string{"test", "abc"},
[]any{"bar", true})
})
t.Run("typed string key", func(t *testing.T) {
data := `{"test":"bar","abc":true}`
type myString string
om := New[myString, any]()
require.NoError(t, json.Unmarshal([]byte(data), &om))
assertOrderedPairsEqual(t, om,
[]myString{"test", "abc"},
[]any{"bar", true})
})
t.Run("typed int key", func(t *testing.T) {
data := `{"1":"bar","7":"baz","2":28,"3":100,"4":"baz","5":"28","6":"100","8":"baz"}`
type myInt uint32
om := New[myInt, any]()
require.NoError(t, json.Unmarshal([]byte(data), &om))
assertOrderedPairsEqual(t, om,
[]myInt{1, 7, 2, 3, 4, 5, 6, 8},
[]any{"bar", "baz", float64(28), float64(100), "baz", "28", "100", "baz"})
})
t.Run("TextUnmarshaler key", func(t *testing.T) {
data := `{"#1#":"bar","#28#":true}`
om := New[marshallable, any]()
require.NoError(t, json.Unmarshal([]byte(data), &om))
assertOrderedPairsEqual(t, om,
[]marshallable{1, 28},
[]any{"bar", true})
})
t.Run("when fed with an input that's not an object", func(t *testing.T) {
for _, data := range []string{"true", `["foo"]`, "42", `"foo"`} {
om := New[int, any]()
require.Error(t, json.Unmarshal([]byte(data), &om))
}
})
t.Run("empty map", func(t *testing.T) {
data := `{}`
om := New[int, any]()
require.NoError(t, json.Unmarshal([]byte(data), &om))
assertLenEqual(t, om, 0)
})
}
// const specialCharacters = "\\\\/\"\b\f\n\r\t\x00\uffff\ufffd世界\u007f\u00ff\U0010FFFF"
const specialCharacters = "\uffff\ufffd世界\u007f\u00ff\U0010FFFF"
func TestJSONSpecialCharacters(t *testing.T) {
baselineMap := map[string]any{specialCharacters: specialCharacters}
baselineData, err := json.Marshal(baselineMap)
require.NoError(t, err) // baseline proves this key is supported by official json library
t.Logf("specialCharacters: %#v as []rune:%v", specialCharacters, []rune(specialCharacters))
t.Logf("baseline json data: %s", baselineData)
t.Run("marshal special characters", func(t *testing.T) {
om := New[string, any]()
om.Set(specialCharacters, specialCharacters)
b, err := json.Marshal(om)
require.NoError(t, err)
require.Equal(t, baselineData, b)
type myString string
om2 := New[myString, myString]()
om2.Set(specialCharacters, specialCharacters)
b, err = json.Marshal(om2)
require.NoError(t, err)
require.Equal(t, baselineData, b)
})
t.Run("unmarshall special characters", func(t *testing.T) {
om := New[string, any]()
require.NoError(t, json.Unmarshal(baselineData, &om))
assertOrderedPairsEqual(t, om,
[]string{specialCharacters},
[]any{specialCharacters})
type myString string
om2 := New[myString, myString]()
require.NoError(t, json.Unmarshal(baselineData, &om2))
assertOrderedPairsEqual(t, om2,
[]myString{specialCharacters},
[]myString{specialCharacters})
})
}
// to test structs that have nested map fields
type nestedMaps struct {
X int `json:"x" yaml:"x"`
M *OrderedMap[string, []*OrderedMap[int, *OrderedMap[string, any]]] `json:"m" yaml:"m"`
}
func TestJSONRoundTrip(t *testing.T) {
for _, testCase := range []struct {
name string
input string
targetFactory func() any
isPrettyPrinted bool
}{
{
name: "",
input: `{
"x": 28,
"m": {
"foo": [
{
"12": {
"i": 12,
"b": true,
"n": null,
"m": {
"a": "b",
"c": 28
}
},
"28": {
"a": false,
"b": [
1,
2,
3
]
}
},
{
"3": {
"c": null,
"d": 87
},
"4": {
"e": true
},
"5": {
"f": 4,
"g": 5,
"h": 6
}
}
],
"bar": [
{
"5": {
"foo": "bar"
}
}
]
}
}`,
targetFactory: func() any { return &nestedMaps{} },
isPrettyPrinted: true,
},
{
name: "with UTF-8 special chars in key",
input: `{"<22>":0}`,
targetFactory: func() any { return &OrderedMap[string, int]{} },
},
} {
t.Run(testCase.name, func(t *testing.T) {
target := testCase.targetFactory()
require.NoError(t, json.Unmarshal([]byte(testCase.input), target))
var (
out []byte
err error
)
if testCase.isPrettyPrinted {
out, err = json.MarshalIndent(target, "", " ")
} else {
out, err = json.Marshal(target)
}
if assert.NoError(t, err) {
assert.Equal(t, strings.TrimSpace(testCase.input), string(out))
}
})
}
}
func BenchmarkMarshalJSON(b *testing.B) {
om := New[int, any]()
om.Set(1, "bar")
om.Set(7, "baz")
om.Set(2, 28)
om.Set(3, 100)
om.Set(4, "baz")
om.Set(5, "28")
om.Set(6, "100")
om.Set(8, "baz")
om.Set(8, "baz")
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, _ = json.Marshal(om)
}
}