Fix test failure

src/commands/open.rs

@@ -226,7 +226,7 @@ pub fn fetch(
         }
     } else {
         cwd.push(Path::new(location));
-        let cwd = dunce::canonicalize(cwd).unwrap();
+        if let Ok(cwd) = dunce::canonicalize(cwd) {
             match std::fs::read(&cwd) {
                 Ok(bytes) => match std::str::from_utf8(&bytes) {
                     Ok(s) => Ok((
@@ -257,6 +257,13 @@ pub fn fetch(
                     ));
                 }
             }
+        } else {
+            return Err(ShellError::labeled_error(
+                "File could not be opened",
+                "file not found",
+                span,
+            ));
+        }
     }
 }