Function versioned_multiple_alters_accumulate

nodedb-strict/src/decode.rs:915–942

()

    #[test]
    fn versioned_multiple_alters_accumulate() {
        // V0 (2 cols) → V1 adds `a INT64 DEFAULT 10` → V2 adds `b TEXT DEFAULT 'x'`.
        // A V0 tuple must read defaults for both `a` and `b`.
        let mut schema = base_schema();

        let mut col_a = ColumnDef::required("a", ColumnType::Int64).with_default("10");
        col_a.added_at_version = 2;
        schema.columns.push(col_a);
        schema.version = 2;

        let mut col_b = ColumnDef::required("b", ColumnType::String).with_default("'x'");
        col_b.added_at_version = 3;
        schema.columns.push(col_b);
        schema.version = 3;

        let decoder = TupleDecoder::new(&schema);
        let tuple = base_tuple(); // written at V1 (2 cols)

        let a = decoder.extract_value_versioned(&tuple, 2, 2).unwrap();
        assert_eq!(a, Value::Integer(10), "a default must be 10");

        let b = decoder.extract_value_versioned(&tuple, 3, 2).unwrap();
        assert_eq!(b, Value::String("x".into()), "b default must be 'x'");

        // Original columns still decode correctly.
        let id = decoder.extract_value_versioned(&tuple, 0, 2).unwrap();
        assert_eq!(id, Value::Integer(7));
    }

    #[test]
    fn versioned_nullable_column_no_default_returns_null() {