Refactor library errors into LibraryError enum

Previously, library errors were part of the CommandError enum.  As
command errors and library errors are two different error types, they
should be split into two enums.

1 files changed, 7 insertions, 0 deletions

diff --git a/tests/util/mod.rs b/tests/util/mod.rs
index f0d0bb5..b1d3ea3 100644
--- a/tests/util/mod.rs
+++ b/tests/util/mod.rs
@@ -67,3 +67,10 @@ macro_rules! assert_cmd_err {
         assert_err!(::nitrokey::Error::CommandError, $left, $right);
     };
 }
+
+#[macro_export]
+macro_rules! assert_lib_err {
+    ($left:expr, $right:expr) => {
+        assert_err!(::nitrokey::Error::LibraryError, $left, $right);
+    };
+}