package jsonvalue

import (
	"encoding/json"
	"reflect"
	"testing"
)

type trustedNamed string

func TestCloneTrustedPreservesTypesAndDetaches(t *testing.T) {
	named := trustedNamed("value")
	original := map[string]any{"": map[string]any{"number": json.Number("9007199254740993")}, "typed": []string{"original"}, "pointer": &named, "nilmap": map[string]any(nil), "nilslice": []string(nil), "empty": []any{}}
	copy := CloneTrusted(original).(map[string]any)
	if !reflect.DeepEqual(copy, original) {
		t.Fatalf("clone = %#v", copy)
	}
	copy[""].(map[string]any)["number"] = json.Number("1")
	copy["typed"].([]string)[0] = "changed"
	*copy["pointer"].(*trustedNamed) = "changed"
	if original[""].(map[string]any)["number"] != json.Number("9007199254740993") || original["typed"].([]string)[0] != "original" || named != "value" {
		t.Fatal("clone shares mutable storage")
	}
	if copy["nilmap"].(map[string]any) != nil || copy["nilslice"].([]string) != nil || copy["empty"].([]any) == nil {
		t.Fatal("nil/empty shape changed")
	}
}