chore: use snapbox

tests/testsuite/errors.rs

@@ -344,17 +344,15 @@ fn test_json_error_with_path() {
         .build()
         .unwrap();
 
-    match c.try_deserialize_with_error_path::<Settings>() {
-        Ok(_) => panic!("expected a type error"),
-        Err(err) => {
-            let path = err.path().to_string();
-            assert_eq!(path, "inner.value");
-
-            let s = format!("{err}");
-            assert_eq!(
-                s,
-                "inner.value: invalid type: unit value, expected a string for key `inner.value`"
-            );
-        }
-    }
+    let without_path = c.clone().try_deserialize::<Settings>();
+    assert_data_eq!(
+        without_path.unwrap_err().to_string(),
+        str!["invalid type: unit value, expected a string for key `inner.value`"]
+    );
+
+    let with_path = c.try_deserialize_with_error_path::<Settings>();
+    assert_data_eq!(
+        with_path.unwrap_err().to_string(),
+        str!["inner.value: invalid type: unit value, expected a string for key `inner.value`"]
+    );
 }