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package scrypto
import (
"slices"
"testing"
)
func TestPadPKCS5(t *testing.T) {
tests := []struct {
data []byte
want []byte
}{
{data: []byte(""), want: []byte("\x04\x04\x04\x04")},
{data: []byte("a"), want: []byte("a\x03\x03\x03")},
{data: []byte("ab"), want: []byte("ab\x02\x02")},
{data: []byte("abc"), want: []byte("abc\x01")},
{data: []byte("abcd"), want: []byte("abcd\x04\x04\x04\x04")},
{data: []byte("abcde"), want: []byte("abcde\x03\x03\x03")},
{data: []byte("abcdefgh"), want: []byte("abcdefgh\x04\x04\x04\x04")},
}
for _, tt := range tests {
got := PadPKCS5(tt.data, 4)
if slices.Compare(got, tt.want) != 0 {
t.Errorf("got %v, want %v", got, tt.want)
}
}
}
func TestUnpadPKCS5(t *testing.T) {
tests := []struct {
data []byte
want []byte
}{
{data: []byte("\x04\x04\x04\x04"), want: []byte("")},
{data: []byte("a\x03\x03\x03"), want: []byte("a")},
{data: []byte("ab\x02\x02"), want: []byte("ab")},
{data: []byte("abc\x01"), want: []byte("abc")},
{data: []byte("abcd\x04\x04\x04\x04"), want: []byte("abcd")},
{data: []byte("abcde\x03\x03\x03"), want: []byte("abcde")},
{data: []byte("abcdefgh\x04\x04\x04\x04"), want: []byte("abcdefgh")},
}
for _, tt := range tests {
got, err := UnpadPKCS5(tt.data, 4)
if err != nil {
t.Errorf("got err %+v while wanted %v", err, tt.want)
} else {
if slices.Compare(got, tt.want) != 0 {
t.Errorf("got %v, want %v", got, tt.want)
}
}
}
}
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