Add new test for client configuration

src/base/err_utils.rs

@@ -2,8 +2,8 @@ use std::fmt::Display;
 use std::io::ErrorKind;
 
 /// Encapsulate errors in [`std::io::Error`] with a message
-pub fn encpasulate_error<E: Display>(e: E, msg: &str) -> std::io::Error {
-    std::io::Error::new(ErrorKind::Other, format!("{}: {}", msg, e))
+pub fn encpasulate_error<E: Display, F: ToString>(e: E, msg: F) -> std::io::Error {
+    std::io::Error::new(ErrorKind::Other, format!("{}: {}", msg.to_string(), e))
 }
 
 /// Create a new [`std::io::Error`]