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|
package memguard
import (
"bytes"
"testing"
"github.com/awnumar/memguard/core"
)
func TestNewEnclave(t *testing.T) {
e := NewEnclave([]byte("yellow submarine"))
if e == nil {
t.Error("got nil enclave")
}
data, err := e.Open()
if err != nil {
t.Error("unexpected error:", err)
}
if !bytes.Equal(data.Bytes(), []byte("yellow submarine")) {
t.Error("data doesn't match input")
}
data.Destroy()
e = NewEnclave([]byte{})
if e != nil {
t.Error("enclave should be nil")
}
}
func TestNewEnclaveRandom(t *testing.T) {
e := NewEnclaveRandom(32)
if e == nil {
t.Error("got nil enclave")
}
data, err := e.Open()
if err != nil {
t.Error("unexpected error:", err)
}
if len(data.Bytes()) != 32 || cap(data.Bytes()) != 32 {
t.Error("buffer sizes incorrect")
}
if bytes.Equal(data.Bytes(), make([]byte, 32)) {
t.Error("buffer not randomised")
}
data.Destroy()
e = NewEnclaveRandom(0)
if e != nil {
t.Error("should be nil")
}
}
func TestOpen(t *testing.T) {
e := NewEnclave([]byte("yellow submarine"))
if e == nil {
t.Error("got nil enclave")
}
b, err := e.Open()
if err != nil {
t.Error("unexpected error;", err)
}
if b == nil {
t.Error("buffer should not be nil")
}
if e.Size() != b.Size() {
t.Error("sizes don't match")
}
if !bytes.Equal(b.Bytes(), []byte("yellow submarine")) {
t.Error("data does not match")
}
Purge() // reset the session
b, err = e.Open()
if err != core.ErrDecryptionFailed {
t.Error("expected decryption error; got", err)
}
if b != nil {
t.Error("buffer should be nil")
}
e = NewEnclaveRandom(0)
if !panics(func() {
e.Open()
}) {
t.Error("func should panic on nil enclave")
}
}
func panics(fn func()) (panicked bool) {
defer func() {
panicked = (recover() != nil)
}()
fn()
return
}
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