cleanup code

handler/handler.go

@@ -245,6 +245,10 @@ func (h *NkodeHandler) RefreshTokenHandler(c *gin.Context) {
 		return
 	}
 	refreshClaims, err := security.ParseRegisteredClaimToken(refreshToken)
+	if err != nil {
+		c.String(500, "Internal Error")
+		return
+	}
 	customerId, err := uuid.Parse(refreshClaims.Issuer)
 	if err != nil {
 		c.String(400, malformedCustomerId)

handler/handler_test.go

@@ -32,7 +32,7 @@ func TestNKodeAPI(t *testing.T) {
 	assert.NoError(t, err)
 	attrPerKey := 9
 	numKeys := 6
-	userEmail := "test_username" + security.GenerateRandomString(12) + "@example.com"
+	userEmail := "test_username" + security.GenerateNonSecureRandomString(12) + "@example.com"
 
 	// *** Signup ***
 	resp, status, err := tr.Signup(customerID, attrPerKey, numKeys, userEmail)