Function test_boxed_map_builder

arrow-array/src/builder/map_builder.rs:338–377

()

    #[test]
    fn test_boxed_map_builder() {
        let keys_builder = make_builder(&DataType::Utf8, 5);
        let values_builder = make_builder(&DataType::Int32, 5);

        let mut builder = MapBuilder::new(None, keys_builder, values_builder);
        builder
            .keys()
            .as_any_mut()
            .downcast_mut::<StringBuilder>()
            .expect("should be an StringBuilder")
            .append_value("1");
        builder
            .values()
            .as_any_mut()
            .downcast_mut::<Int32Builder>()
            .expect("should be an Int32Builder")
            .append_value(42);
        builder.append(true).unwrap();

        let map_array = builder.finish();

        assert_eq!(
            map_array
                .keys()
                .as_any()
                .downcast_ref::<StringArray>()
                .expect("should be an StringArray")
                .value(0),
            "1"
        );
        assert_eq!(
            map_array
                .values()
                .as_any()
                .downcast_ref::<Int32Array>()
                .expect("should be an Int32Array")
                .value(0),
            42
        );
    }

    #[test]
    fn test_with_values_field() {