chore: use interfaces for all other services

internal/domain/crypto_test.go

@@ -0,0 +1,56 @@
+package domain
+
+import (
+	"encoding/base64"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
+)
+
+func TestKeyPair_GetPrivateKeyBytesReturnsCorrectBytes(t *testing.T) {
+	keyPair := KeyPair{PrivateKey: base64.StdEncoding.EncodeToString([]byte("privateKey"))}
+	expected := []byte("privateKey")
+	assert.Equal(t, expected, keyPair.GetPrivateKeyBytes())
+}
+
+func TestKeyPair_GetPublicKeyBytesReturnsCorrectBytes(t *testing.T) {
+	keyPair := KeyPair{PublicKey: base64.StdEncoding.EncodeToString([]byte("publicKey"))}
+	expected := []byte("publicKey")
+	assert.Equal(t, expected, keyPair.GetPublicKeyBytes())
+}
+
+func TestKeyPair_GetPrivateKeyReturnsCorrectKey(t *testing.T) {
+	privateKey, _ := wgtypes.GeneratePrivateKey()
+	keyPair := KeyPair{PrivateKey: privateKey.String()}
+	assert.Equal(t, privateKey, keyPair.GetPrivateKey())
+}
+
+func TestKeyPair_GetPublicKeyReturnsCorrectKey(t *testing.T) {
+	privateKey, _ := wgtypes.GeneratePrivateKey()
+	keyPair := KeyPair{PublicKey: privateKey.PublicKey().String()}
+	assert.Equal(t, privateKey.PublicKey(), keyPair.GetPublicKey())
+}
+
+func TestNewFreshKeypairGeneratesValidKeypair(t *testing.T) {
+	keyPair, err := NewFreshKeypair()
+	assert.NoError(t, err)
+	assert.NotEmpty(t, keyPair.PrivateKey)
+	assert.NotEmpty(t, keyPair.PublicKey)
+}
+
+func TestNewPreSharedKeyGeneratesValidKey(t *testing.T) {
+	preSharedKey, err := NewPreSharedKey()
+	assert.NoError(t, err)
+	assert.NotEmpty(t, preSharedKey)
+}
+
+func TestPublicKeyFromPrivateKeyReturnsCorrectPublicKey(t *testing.T) {
+	privateKey, _ := wgtypes.GeneratePrivateKey()
+	expected := privateKey.PublicKey().String()
+	assert.Equal(t, expected, PublicKeyFromPrivateKey(privateKey.String()))
+}
+
+func TestPublicKeyFromPrivateKeyReturnsEmptyStringOnInvalidKey(t *testing.T) {
+	assert.Equal(t, "", PublicKeyFromPrivateKey("invalidKey"))
+}