package main

import (
	"testing"

	"github.com/goccy/go-json"
	"github.com/stretchr/testify/require"
)

type CustomMap map[string]any

func (m CustomMap) MarshalJSON() ([]byte, error) {
	if m == nil {
		return nil, nil
	}
	t := (map[string]interface{})(m)
	return json.Marshal(t)
}

func TestCustomMap(t *testing.T) {
	jsonData, err := json.Marshal([]CustomMap{
		{"foo": "bar"},
	})
	require.NoError(t, err)
	require.Equal(t, []byte(`[{"foo":"bar"}]`), jsonData)
}