()
| 139 | |
| 140 | #[test] |
| 141 | fn missing_field_is_null() { |
| 142 | let doc = encode(&json!({"x": 1})); |
| 143 | let key = build_group_key(&doc, &["missing".into()]); |
| 144 | assert_eq!(key, "[null]"); |
| 145 | } |
| 146 | |
| 147 | #[test] |
| 148 | fn empty_group_fields() { |
nothing calls this directly
no test coverage detected