package main

import (
	"os"
	"path/filepath"
	"testing"
	"unicode/utf16"
)

func TestReadTextFileUTF16(t *testing.T) {
	s := "Email=a@b.co\r\nPassword=p=\"w\\x\r\n"
	u := utf16.Encode([]rune(s))
	b := []byte{0xFF, 0xFE}
	for _, c := range u {
		b = append(b, byte(c), byte(c>>8))
	}
	p := filepath.Join(t.TempDir(), "r.txt")
	_ = os.WriteFile(p, b, 0o600)
	got, err := readTextFile(p)
	if err != nil || got != s {
		t.Fatalf("%q %v", got, err)
	}
}