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package goja
import (
"encoding/json"
"strings"
"testing"
)
func TestJSONMarshalObject(t *testing.T) {
vm := New()
o := vm.NewObject()
o.Set("test", 42)
o.Set("testfunc", vm.Get("Error"))
b, err := json.Marshal(o)
if err != nil {
t.Fatal(err)
}
if string(b) != `{"test":42}` {
t.Fatalf("Unexpected value: %s", b)
}
}
func TestJSONMarshalObjectCircular(t *testing.T) {
vm := New()
o := vm.NewObject()
o.Set("o", o)
_, err := json.Marshal(o)
if err == nil {
t.Fatal("Expected error")
}
if !strings.HasSuffix(err.Error(), "Converting circular structure to JSON") {
t.Fatalf("Unexpected error: %v", err)
}
}
func BenchmarkJSONStringify(b *testing.B) {
b.StopTimer()
vm := New()
var createObj func(level int) *Object
createObj = func(level int) *Object {
o := vm.NewObject()
o.Set("field1", "test")
o.Set("field2", 42)
if level > 0 {
level--
o.Set("obj1", createObj(level))
o.Set("obj2", createObj(level))
}
return o
}
o := createObj(3)
json := vm.Get("JSON").(*Object)
stringify, _ := AssertFunction(json.Get("stringify"))
b.StartTimer()
for i := 0; i < b.N; i++ {
stringify(nil, o)
}
}
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