test error report fixes

Author: vgough

src/config.rs

@@ -588,10 +588,10 @@ mod tests {
         // Note: We need to make sure we're running from the project root usually.
         // If not found, panic with a helpful message.
         if !fixture_path.exists() {
-            eprintln!(
+            panic!(
                 "Fixture not found at {:?}. Current Dir: {:?}",
                 fixture_path,
-                std::env::current_dir()?
+                std::env::current_dir().unwrap_or_default()
             );
         }
         let loaded_config = EncfsConfig::load(fixture_path)?;