Function test_with_keys_field

arrow-array/src/builder/map_builder.rs:438–472

()

    #[test]
    fn test_with_keys_field() {
        let mut key_metadata = HashMap::new();
        key_metadata.insert("foo".to_string(), "bar".to_string());
        let key_field = Arc::new(
            Field::new("keys", DataType::Int32, false).with_metadata(key_metadata.clone()),
        );
        let mut builder = MapBuilder::new(None, Int32Builder::new(), Int32Builder::new())
            .with_keys_field(key_field.clone());
        builder.keys().append_value(1);
        builder.values().append_value(2);
        builder.append(true).unwrap();
        let map = builder.finish();

        assert_eq!(map.len(), 1);
        assert_eq!(
            map.data_type(),
            &DataType::Map(
                Arc::new(Field::new(
                    "entries",
                    DataType::Struct(
                        vec![
                            Arc::new(
                                Field::new("keys", DataType::Int32, false)
                                    .with_metadata(key_metadata)
                            ),
                            Arc::new(Field::new("values", DataType::Int32, true))
                        ]
                        .into()
                    ),
                    false,
                )),
                false
            )
        );
    }

    #[test]
    fn test_append_nulls() {