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|
package kate
import (
"bytes"
"crypto/rand"
"fmt"
"testing"
"testing/quick"
)
func TestEncryptDecryptRoundtrip(t *testing.T) {
property := func(data []byte) bool {
var key [naclKeyLen]byte
if _, err := rand.Read(key[:]); err != nil {
return false
}
encryption := encryption{Key: key}
token := encryption.Encrypt(data)
decryptedData, success := encryption.Decrypt(token)
if !bytes.Equal(decryptedData, data) {
fmt.Printf("expected %v, got %v\n", data, decryptedData)
}
return success && bytes.Equal(decryptedData, data)
}
if err := quick.Check(property, nil); err != nil {
t.Errorf("Encrypt/Decrypt roundtrip property failed: %v", err)
}
}
func TestEncryptionFromHexKey(t *testing.T) {
tests := []struct {
name string
key string
wantErr bool
}{
{
name: "valid hex key",
key: "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef",
wantErr: false,
},
{
name: "key too short",
key: "0123456789abcdef",
wantErr: true,
},
{
name: "key too long",
key: "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef00",
wantErr: true,
},
{
name: "invalid hex characters",
key: "0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdef0123456789abcdef",
wantErr: true,
},
{
name: "empty key",
key: "",
wantErr: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if _, err := encryptionFromHexKey(tt.key); (err != nil) != tt.wantErr {
t.Errorf("encryptionFromHexKey() error = %v, wantErr %v", err, tt.wantErr)
}
})
}
}
func TestDecryptInvalidTokens(t *testing.T) {
var key [naclKeyLen]byte
if _, err := rand.Read(key[:]); err != nil {
t.Fatal(err)
}
enc := encryption{Key: key}
tests := []struct {
name string
token string
}{
{
name: "invalid hex token",
token: "invalid_hex_string",
},
{
name: "token with wrong MAC",
token: "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
data, ok := enc.Decrypt(tt.token)
if ok {
t.Errorf("Decrypt() should have failed for %s, but returned data: %v", tt.name, data)
}
})
}
}
func TestEncryptEmptyData(t *testing.T) {
var key [naclKeyLen]byte
if _, err := rand.Read(key[:]); err != nil {
t.Fatal(err)
}
enc := encryption{Key: key}
token := enc.Encrypt([]byte{})
if token == "" {
t.Error("Encrypt() should return non-empty token even for empty data")
}
data, ok := enc.Decrypt(token)
if !ok {
t.Error("Decrypt() should succeed for encrypted empty data")
}
if len(data) != 0 {
t.Errorf("Decrypt() should return empty data, got %v", data)
}
}
func TestEncryptLargeData(t *testing.T) {
var key [naclKeyLen]byte
if _, err := rand.Read(key[:]); err != nil {
t.Fatal(err)
}
enc := encryption{Key: key}
largeData := make([]byte, 10000)
if _, err := rand.Read(largeData); err != nil {
t.Fatal(err)
}
token := enc.Encrypt(largeData)
if token == "" {
t.Error("Encrypt() should return non-empty token for large data")
}
decryptedData, ok := enc.Decrypt(token)
if !ok {
t.Error("Decrypt() should succeed for encrypted large data")
}
if !bytes.Equal(decryptedData, largeData) {
t.Error("Decrypt() should return original large data")
}
}
|
