fn arrow_schema_for_arrow_schema_to_schema_test()

in crates/iceberg/src/arrow/schema.rs [1022:1115]

• 90 lines of code
• 1 McCabe index (conditional complexity)

    fn arrow_schema_for_arrow_schema_to_schema_test() -> ArrowSchema {
        let fields = Fields::from(vec![
            simple_field("key", DataType::Int32, false, "28"),
            simple_field("value", DataType::Utf8, true, "29"),
        ]);

        let r#struct = DataType::Struct(fields);
        let map = DataType::Map(
            Arc::new(simple_field(DEFAULT_MAP_FIELD_NAME, r#struct, false, "17")),
            false,
        );
        let dictionary = DataType::Dictionary(Box::new(DataType::Int32), Box::new(DataType::Utf8));

        let fields = Fields::from(vec![
            simple_field("aa", DataType::Int32, false, "18"),
            simple_field("bb", DataType::Utf8, true, "19"),
            simple_field(
                "cc",
                DataType::Timestamp(TimeUnit::Microsecond, None),
                false,
                "20",
            ),
        ]);

        let r#struct = DataType::Struct(fields);

        ArrowSchema::new(vec![
            simple_field("a", DataType::Int32, false, "2"),
            simple_field("b", DataType::Int64, false, "1"),
            simple_field("c", DataType::Utf8, false, "3"),
            simple_field("n", DataType::Utf8, false, "21"),
            simple_field(
                "d",
                DataType::Timestamp(TimeUnit::Microsecond, None),
                true,
                "4",
            ),
            simple_field("e", DataType::Boolean, true, "6"),
            simple_field("f", DataType::Float32, false, "5"),
            simple_field("g", DataType::Float64, false, "7"),
            simple_field("p", DataType::Decimal128(10, 2), false, "27"),
            simple_field("h", DataType::Date32, false, "8"),
            simple_field("i", DataType::Time64(TimeUnit::Microsecond), false, "9"),
            simple_field(
                "j",
                DataType::Timestamp(TimeUnit::Microsecond, Some("UTC".into())),
                false,
                "10",
            ),
            simple_field(
                "k",
                DataType::Timestamp(TimeUnit::Microsecond, Some("+00:00".into())),
                false,
                "12",
            ),
            simple_field("l", DataType::Binary, false, "13"),
            simple_field("o", DataType::LargeBinary, false, "22"),
            simple_field("m", DataType::FixedSizeBinary(10), false, "11"),
            simple_field(
                "list",
                DataType::List(Arc::new(simple_field(
                    "element",
                    DataType::Int32,
                    false,
                    "15",
                ))),
                true,
                "14",
            ),
            simple_field(
                "large_list",
                DataType::LargeList(Arc::new(simple_field(
                    "element",
                    DataType::Utf8,
                    false,
                    "23",
                ))),
                true,
                "24",
            ),
            simple_field(
                "fixed_list",
                DataType::FixedSizeList(
                    Arc::new(simple_field("element", DataType::Binary, false, "26")),
                    10,
                ),
                true,
                "25",
            ),
            simple_field("map", map, false, "16"),
            simple_field("struct", r#struct, false, "17"),
            simple_field("dictionary", dictionary, false, "30"),
        ])
    }