1 files changed, 6 insertions, 13 deletions

diff --git a/src/tests/pro.rs b/src/tests/pro.rs
index e39c95a..ece94bf 100644
--- a/src/tests/pro.rs
+++ b/src/tests/pro.rs
@@ -1,7 +1,6 @@
 use std::ffi::CStr;
-use std::marker::Sized;
-use {set_debug, AdminAuthenticatedDevice, CommandError, CommandStatus, Config, Device, Model,
-     OtpMode, OtpSlotData, UnauthenticatedDevice};
+use {set_debug, AdminAuthenticatedDevice, CommandError, CommandStatus, Config, ConfigureOtp,
+     Device, GenerateOtp, Model, OtpMode, OtpSlotData, UnauthenticatedDevice};
 
 static ADMIN_PASSWORD: &str = "12345678";
 static ADMIN_NEW_PASSWORD: &str = "1234567890";
@@ -84,15 +83,12 @@ fn get_serial_number() {
     assert!(serial_number.chars().all(|c| c.is_ascii_hexdigit()));
 }
 
-fn configure_hotp(admin: &AdminAuthenticatedDevice) {
+fn configure_hotp(admin: &ConfigureOtp) {
     let slot_data = OtpSlotData::new(1, "test-hotp", HOTP_SECRET, OtpMode::SixDigits);
     assert_eq!(CommandStatus::Success, admin.write_hotp_slot(slot_data, 0));
 }
 
-fn check_hotp_codes<T: Device>(device: &T)
-where
-    T: Sized,
-{
+fn check_hotp_codes<T: GenerateOtp>(device: &T) {
     for code in HOTP_CODES {
         let result = device.get_hotp_code(1);
         assert_eq!(code, &result.unwrap());
@@ -181,15 +177,12 @@ fn hotp_erase() {
     assert_eq!("test2", device.get_hotp_slot_name(2).unwrap());
 }
 
-fn configure_totp(admin: &AdminAuthenticatedDevice) {
+fn configure_totp(admin: &ConfigureOtp) {
     let slot_data = OtpSlotData::new(1, "test-totp", TOTP_SECRET, OtpMode::EightDigits);
     assert_eq!(CommandStatus::Success, admin.write_totp_slot(slot_data, 30));
 }
 
-fn check_totp_codes<T: Device>(device: &T)
-where
-    T: Sized,
-{
+fn check_totp_codes<T: Device + GenerateOtp>(device: &T) {
     for (i, &(time, code)) in TOTP_CODES.iter().enumerate() {
         assert_eq!(CommandStatus::Success, device.set_time(time));
         let result = device.get_totp_code(1);