Remove unwrap_lib_err method from UnwrapError test trait

This change marks the next step in getting rid of the UnwrapError test
trait. Specifically, it removes its unwrap_lib_err method.

3 files changed, 19 insertions, 29 deletions

diff --git a/src/tests/mod.rs b/src/tests/mod.rs
index fd2f9e0..65223ae 100644
--- a/src/tests/mod.rs
+++ b/src/tests/mod.rs
@@ -39,8 +39,6 @@ mod unencrypted;
 pub trait UnwrapError {
   /// Unwrap a Error::CommandError variant.
   fn unwrap_cmd_err(self) -> (Option<&'static str>, nitrokey::CommandError);
-  /// Unwrap a Error::LibraryError variant.
-  fn unwrap_lib_err(self) -> (Option<&'static str>, nitrokey::LibraryError);
 }
 
 impl<T> UnwrapError for crate::Result<T>
@@ -56,16 +54,6 @@ where
       err => panic!("Unexpected error variant found: {:?}", err),
     }
   }
-
-  fn unwrap_lib_err(self) -> (Option<&'static str>, nitrokey::LibraryError) {
-    match self.unwrap_err() {
-      crate::Error::NitrokeyError(ctx, err) => match err {
-        nitrokey::Error::LibraryError(err) => (ctx, err),
-        err => panic!("Unexpected error variant found: {:?}", err),
-      },
-      err => panic!("Unexpected error variant found: {:?}", err),
-    }
-  }
 }
 
 struct Nitrocli {
diff --git a/src/tests/otp.rs b/src/tests/otp.rs
index 837b075..8802d9e 100644
--- a/src/tests/otp.rs
+++ b/src/tests/otp.rs
@@ -33,15 +33,16 @@ fn set_invalid_slot_raw(model: nitrokey::Model) {
 
 #[test_device]
 fn set_invalid_slot(model: nitrokey::Model) {
-  let res = Nitrocli::with_model(model).handle(&["otp", "set", "100", "name", "1234", "-f", "hex"]);
-
-  assert_eq!(
-    res.unwrap_lib_err(),
-    (
-      Some("Could not write OTP slot"),
-      nitrokey::LibraryError::InvalidSlot
-    )
+  let err = Nitrocli::with_model(model)
+    .handle(&["otp", "set", "100", "name", "1234", "-f", "hex"])
+    .unwrap_err()
+    .to_string();
+  let expected = format!(
+    "Could not write OTP slot: {}",
+    nitrokey::Error::LibraryError(nitrokey::LibraryError::InvalidSlot)
   );
+
+  assert_eq!(err, expected);
 }
 
 #[test_device]
diff --git a/src/tests/pws.rs b/src/tests/pws.rs
index 651b2d5..42cb847 100644
--- a/src/tests/pws.rs
+++ b/src/tests/pws.rs
@@ -1,7 +1,7 @@
 // pws.rs
 
 // *************************************************************************
-// * Copyright (C) 2019 Daniel Mueller (deso@posteo.net)                   *
+// * Copyright (C) 2019-2020 Daniel Mueller (deso@posteo.net)              *
 // *                                                                       *
 // * This program is free software: you can redistribute it and/or modify  *
 // * it under the terms of the GNU General Public License as published by  *
@@ -21,15 +21,16 @@ use super::*;
 
 #[test_device]
 fn set_invalid_slot(model: nitrokey::Model) {
-  let res = Nitrocli::with_model(model).handle(&["pws", "set", "100", "name", "login", "1234"]);
-
-  assert_eq!(
-    res.unwrap_lib_err(),
-    (
-      Some("Could not write PWS slot"),
-      nitrokey::LibraryError::InvalidSlot
-    )
+  let err = Nitrocli::with_model(model)
+    .handle(&["pws", "set", "100", "name", "login", "1234"])
+    .unwrap_err()
+    .to_string();
+  let expected = format!(
+    "Could not write PWS slot: {}",
+    nitrokey::Error::LibraryError(nitrokey::LibraryError::InvalidSlot)
   );
+
+  assert_eq!(err, expected);
 }
 
 #[test_device]