Move cookie to pkg/encryption

pkg/encryption/cipher_test.go

@@ -0,0 +1,43 @@
+package encryption
+
+import (
+	"encoding/base64"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestEncodeAndDecodeAccessToken(t *testing.T) {
+	const secret = "0123456789abcdefghijklmnopqrstuv"
+	const token = "my access token"
+	c, err := NewCipher([]byte(secret))
+	assert.Equal(t, nil, err)
+
+	encoded, err := c.Encrypt(token)
+	assert.Equal(t, nil, err)
+
+	decoded, err := c.Decrypt(encoded)
+	assert.Equal(t, nil, err)
+
+	assert.NotEqual(t, token, encoded)
+	assert.Equal(t, token, decoded)
+}
+
+func TestEncodeAndDecodeAccessTokenB64(t *testing.T) {
+	const secretBase64 = "A3Xbr6fu6Al0HkgrP1ztjb-mYiwmxgNPP-XbNsz1WBk="
+	const token = "my access token"
+
+	secret, err := base64.URLEncoding.DecodeString(secretBase64)
+	assert.Equal(t, nil, err)
+	c, err := NewCipher([]byte(secret))
+	assert.Equal(t, nil, err)
+
+	encoded, err := c.Encrypt(token)
+	assert.Equal(t, nil, err)
+
+	decoded, err := c.Decrypt(encoded)
+	assert.Equal(t, nil, err)
+
+	assert.NotEqual(t, token, encoded)
+	assert.Equal(t, token, decoded)
+}