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package test
import (
"bytes"
"encoding/json"
"fmt"
"github.com/davecgh/go-spew/spew"
"github.com/google/gofuzz"
"github.com/json-iterator/go"
"reflect"
"strings"
"testing"
)
var testCases []interface{}
var asymmetricTestCases [][2]interface{}
type selectedSymmetricCase struct {
testCase interface{}
}
func Test_symmetric(t *testing.T) {
for _, testCase := range testCases {
selectedSymmetricCase, found := testCase.(selectedSymmetricCase)
if found {
testCases = []interface{}{selectedSymmetricCase.testCase}
break
}
}
for _, testCase := range testCases {
valType := reflect.TypeOf(testCase).Elem()
t.Run(valType.String(), func(t *testing.T) {
fz := fuzz.New().MaxDepth(10).NilChance(0.3)
for i := 0; i < 100; i++ {
beforePtrVal := reflect.New(valType)
beforePtr := beforePtrVal.Interface()
fz.Fuzz(beforePtr)
before := beforePtrVal.Elem().Interface()
jbStd, err := json.Marshal(before)
if err != nil {
t.Fatalf("failed to marshal with stdlib: %v", err)
}
if len(strings.TrimSpace(string(jbStd))) == 0 {
t.Fatal("stdlib marshal produced empty result and no error")
}
jbIter, err := jsoniter.ConfigCompatibleWithStandardLibrary.Marshal(before)
if err != nil {
t.Fatalf("failed to marshal with jsoniter: %v", err)
}
if len(strings.TrimSpace(string(jbIter))) == 0 {
t.Fatal("jsoniter marshal produced empty result and no error")
}
if string(jbStd) != string(jbIter) {
t.Fatalf("marshal expected:\n %s\ngot:\n %s\nobj:\n %s",
indent(jbStd, " "), indent(jbIter, " "), dump(before))
}
afterStdPtrVal := reflect.New(valType)
afterStdPtr := afterStdPtrVal.Interface()
err = json.Unmarshal(jbIter, afterStdPtr)
if err != nil {
t.Fatalf("failed to unmarshal with stdlib: %v\nvia:\n %s",
err, indent(jbIter, " "))
}
afterIterPtrVal := reflect.New(valType)
afterIterPtr := afterIterPtrVal.Interface()
err = jsoniter.ConfigCompatibleWithStandardLibrary.Unmarshal(jbIter, afterIterPtr)
if err != nil {
t.Fatalf("failed to unmarshal with jsoniter: %v\nvia:\n %s",
err, indent(jbIter, " "))
}
afterStd := afterStdPtrVal.Elem().Interface()
afterIter := afterIterPtrVal.Elem().Interface()
if fingerprint(afterStd) != fingerprint(afterIter) {
t.Fatalf("unmarshal expected:\n %s\ngot:\n %s\nvia:\n %s",
dump(afterStd), dump(afterIter), indent(jbIter, " "))
}
}
})
}
}
func Test_asymmetric(t *testing.T) {
for _, testCase := range asymmetricTestCases {
fromType := reflect.TypeOf(testCase[0]).Elem()
toType := reflect.TypeOf(testCase[1]).Elem()
fz := fuzz.New().MaxDepth(10).NilChance(0.3)
for i := 0; i < 100; i++ {
beforePtrVal := reflect.New(fromType)
beforePtr := beforePtrVal.Interface()
fz.Fuzz(beforePtr)
before := beforePtrVal.Elem().Interface()
jbStd, err := json.Marshal(before)
if err != nil {
t.Fatalf("failed to marshal with stdlib: %v", err)
}
if len(strings.TrimSpace(string(jbStd))) == 0 {
t.Fatal("stdlib marshal produced empty result and no error")
}
jbIter, err := jsoniter.ConfigCompatibleWithStandardLibrary.Marshal(before)
if err != nil {
t.Fatalf("failed to marshal with jsoniter: %v", err)
}
if len(strings.TrimSpace(string(jbIter))) == 0 {
t.Fatal("jsoniter marshal produced empty result and no error")
}
if string(jbStd) != string(jbIter) {
t.Fatalf("marshal expected:\n %s\ngot:\n %s\nobj:\n %s",
indent(jbStd, " "), indent(jbIter, " "), dump(before))
}
afterStdPtrVal := reflect.New(toType)
afterStdPtr := afterStdPtrVal.Interface()
err = json.Unmarshal(jbIter, afterStdPtr)
if err != nil {
t.Fatalf("failed to unmarshal with stdlib: %v\nvia:\n %s",
err, indent(jbIter, " "))
}
afterIterPtrVal := reflect.New(toType)
afterIterPtr := afterIterPtrVal.Interface()
err = jsoniter.ConfigCompatibleWithStandardLibrary.Unmarshal(jbIter, afterIterPtr)
if err != nil {
t.Fatalf("failed to unmarshal with jsoniter: %v\nvia:\n %s",
err, indent(jbIter, " "))
}
afterStd := afterStdPtrVal.Elem().Interface()
afterIter := afterIterPtrVal.Elem().Interface()
if fingerprint(afterStd) != fingerprint(afterIter) {
t.Fatalf("unmarshal expected:\n %s\ngot:\n %s\nvia:\n %s",
dump(afterStd), dump(afterIter), indent(jbIter, " "))
}
}
}
}
const indentStr = "> "
func fingerprint(obj interface{}) string {
c := spew.ConfigState{
SortKeys: true,
SpewKeys: true,
}
return c.Sprintf("%v", obj)
}
func dump(obj interface{}) string {
cfg := spew.ConfigState{
Indent: indentStr,
}
return cfg.Sdump(obj)
}
func indent(src []byte, prefix string) string {
var buf bytes.Buffer
err := json.Indent(&buf, src, prefix, indentStr)
if err != nil {
return fmt.Sprintf("!!! %v", err)
}
return buf.String()
}
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