// Copyright (C) 2023  Luke Shumaker <lukeshu@lukeshu.com>
//
// SPDX-License-Identifier: GPL-2.0-or-later

package json

import (
	"bytes"
	"testing"

	"github.com/stretchr/testify/assert"
)

func TestCompatValid(t *testing.T) {
	t.Parallel()
	type testcase struct {
		In  string
		Exp bool
	}
	testcases := map[string]testcase{
		"empty":  {In: ``, Exp: false},
		"num":    {In: `1`, Exp: true},
		"trunc":  {In: `{`, Exp: false},
		"object": {In: `{}`, Exp: true},
	}
	for tcName, tc := range testcases {
		tc := tc
		t.Run(tcName, func(t *testing.T) {
			t.Parallel()
			t.Logf("in=%q", tc.In)
			act := Valid([]byte(tc.In))
			assert.Equal(t, tc.Exp, act)
		})
	}
}

func TestCompatCompact(t *testing.T) {
	t.Parallel()
	type testcase struct {
		In  string
		Out string
		Err string
	}
	testcases := map[string]testcase{
		"trunc":  {In: `{`, Out: ``, Err: `unexpected end of JSON input`},
		"object": {In: `{}`, Out: `{}`},
	}
	for tcName, tc := range testcases {
		tc := tc
		t.Run(tcName, func(t *testing.T) {
			t.Parallel()
			t.Logf("in=%q", tc.In)
			var out bytes.Buffer
			err := Compact(&out, []byte(tc.In))
			assert.Equal(t, tc.Out, out.String())
			if tc.Err == "" {
				assert.NoError(t, err)
			} else {
				assert.EqualError(t, err, tc.Err)
			}
		})
	}
}

func TestCompatIndent(t *testing.T) {
	t.Parallel()
	type testcase struct {
		In  string
		Out string
		Err string
	}
	testcases := map[string]testcase{
		"trunc":  {In: `{`, Out: ``, Err: `unexpected end of JSON input`},
		"object": {In: `{}`, Out: `{}`},
	}
	for tcName, tc := range testcases {
		tc := tc
		t.Run(tcName, func(t *testing.T) {
			t.Parallel()
			t.Logf("in=%q", tc.In)
			var out bytes.Buffer
			err := Indent(&out, []byte(tc.In), ">", ".")
			assert.Equal(t, tc.Out, out.String())
			if tc.Err == "" {
				assert.NoError(t, err)
			} else {
				assert.EqualError(t, err, tc.Err)
			}
		})
	}
}