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package nametransform
import (
"bytes"
"testing"
)
func TestPad16(t *testing.T) {
var s [][]byte
s = append(s, []byte("foo"))
s = append(s, []byte("12345678901234567"))
s = append(s, []byte("12345678901234567abcdefg"))
for i := range s {
orig := s[i]
padded := pad16(orig)
if len(padded) <= len(orig) {
t.Errorf("Padded length not bigger than orig: %d", len(padded))
}
if len(padded)%16 != 0 {
t.Errorf("Length is not aligend: %d", len(padded))
}
unpadded, err := unPad16(padded)
if err != nil {
t.Error("unPad16 returned error:", err)
}
if len(unpadded) != len(orig) {
t.Errorf("Size mismatch: orig=%d unpadded=%d", len(s[i]), len(unpadded))
}
if !bytes.Equal(orig, unpadded) {
t.Error("Content mismatch orig vs unpadded")
}
}
}
// TestUnpad16Garbage - unPad16 should never crash on corrupt or malicious inputs
func TestUnpad16Garbage(t *testing.T) {
var testCases [][]byte
testCases = append(testCases, make([]byte, 0))
testCases = append(testCases, make([]byte, 16))
testCases = append(testCases, make([]byte, 1))
testCases = append(testCases, make([]byte, 17))
testCases = append(testCases, bytes.Repeat([]byte{16}, 16))
testCases = append(testCases, bytes.Repeat([]byte{17}, 16))
for _, v := range testCases {
_, err := unPad16([]byte(v))
if err == nil {
t.Fail()
}
}
}
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