// Copyright (c) 2026 Probo Inc <hello@probo.com>.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

package safecsv

import (
	"bytes"
	"testing"

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

func TestSanitizeCell(t *testing.T) {
	t.Parallel()

	assert.Equal(t, "plain", SanitizeCell("plain"))
	assert.Equal(t, "'=1+1", SanitizeCell("=1+1"))
	assert.Equal(t, "'+cmd", SanitizeCell("+cmd"))
	assert.Equal(t, "'-2", SanitizeCell("-2"))
	assert.Equal(t, "'@sum", SanitizeCell("@sum"))
	assert.Equal(t, "' =1+1", SanitizeCell(" =1+1"))
	assert.Equal(t, "'\n=1+1", SanitizeCell("\n=1+1"))
	assert.Equal(t, "'\tplain", SanitizeCell("\tplain"))
	assert.Equal(t, "'\rhello", SanitizeCell("\rhello"))
	assert.Equal(t, "'\\evil", SanitizeCell("\\evil"))
	assert.Equal(t, "'-5", SanitizeCell("-5"))
}

func TestWriterWrite(t *testing.T) {
	t.Parallel()

	var buf bytes.Buffer

	w := NewWriter(&buf)
	require.NoError(t, w.Write([]string{"ok", "=evil"}))
	w.Flush()
	require.NoError(t, w.Error())

	assert.Equal(t, "ok,'=evil\n", buf.String())
}