fn test_type_coercion()

in datafusion/expr/src/type_coercion/binary.rs [956:1106]
149 lines of code
1 McCabe index (conditional complexity)

    fn test_type_coercion() -> Result<()> {
        // test like coercion rule
        let result = like_coercion(&DataType::Utf8, &DataType::Utf8);
        assert_eq!(result, Some(DataType::Utf8));

        test_coercion_binary_rule!(
            DataType::Utf8,
            DataType::Date32,
            Operator::Eq,
            DataType::Date32
        );
        test_coercion_binary_rule!(
            DataType::Utf8,
            DataType::Date64,
            Operator::Lt,
            DataType::Date64
        );
        test_coercion_binary_rule!(
            DataType::Utf8,
            DataType::Time32(TimeUnit::Second),
            Operator::Eq,
            DataType::Time32(TimeUnit::Second)
        );
        test_coercion_binary_rule!(
            DataType::Utf8,
            DataType::Time32(TimeUnit::Millisecond),
            Operator::Eq,
            DataType::Time32(TimeUnit::Millisecond)
        );
        test_coercion_binary_rule!(
            DataType::Utf8,
            DataType::Time64(TimeUnit::Microsecond),
            Operator::Eq,
            DataType::Time64(TimeUnit::Microsecond)
        );
        test_coercion_binary_rule!(
            DataType::Utf8,
            DataType::Time64(TimeUnit::Nanosecond),
            Operator::Eq,
            DataType::Time64(TimeUnit::Nanosecond)
        );
        test_coercion_binary_rule!(
            DataType::Utf8,
            DataType::Timestamp(TimeUnit::Second, None),
            Operator::Lt,
            DataType::Timestamp(TimeUnit::Nanosecond, None)
        );
        test_coercion_binary_rule!(
            DataType::Utf8,
            DataType::Timestamp(TimeUnit::Millisecond, None),
            Operator::Lt,
            DataType::Timestamp(TimeUnit::Nanosecond, None)
        );
        test_coercion_binary_rule!(
            DataType::Utf8,
            DataType::Timestamp(TimeUnit::Microsecond, None),
            Operator::Lt,
            DataType::Timestamp(TimeUnit::Nanosecond, None)
        );
        test_coercion_binary_rule!(
            DataType::Utf8,
            DataType::Timestamp(TimeUnit::Nanosecond, None),
            Operator::Lt,
            DataType::Timestamp(TimeUnit::Nanosecond, None)
        );
        test_coercion_binary_rule!(
            DataType::Utf8,
            DataType::Utf8,
            Operator::RegexMatch,
            DataType::Utf8
        );
        test_coercion_binary_rule!(
            DataType::Utf8,
            DataType::Utf8,
            Operator::RegexNotMatch,
            DataType::Utf8
        );
        test_coercion_binary_rule!(
            DataType::Utf8,
            DataType::Utf8,
            Operator::RegexNotIMatch,
            DataType::Utf8
        );
        test_coercion_binary_rule!(
            DataType::Dictionary(DataType::Int32.into(), DataType::Utf8.into()),
            DataType::Utf8,
            Operator::RegexMatch,
            DataType::Utf8
        );
        test_coercion_binary_rule!(
            DataType::Dictionary(DataType::Int32.into(), DataType::Utf8.into()),
            DataType::Utf8,
            Operator::RegexIMatch,
            DataType::Utf8
        );
        test_coercion_binary_rule!(
            DataType::Dictionary(DataType::Int32.into(), DataType::Utf8.into()),
            DataType::Utf8,
            Operator::RegexNotMatch,
            DataType::Utf8
        );
        test_coercion_binary_rule!(
            DataType::Dictionary(DataType::Int32.into(), DataType::Utf8.into()),
            DataType::Utf8,
            Operator::RegexNotIMatch,
            DataType::Utf8
        );
        test_coercion_binary_rule!(
            DataType::Int16,
            DataType::Int64,
            Operator::BitwiseAnd,
            DataType::Int64
        );
        test_coercion_binary_rule!(
            DataType::UInt64,
            DataType::UInt64,
            Operator::BitwiseAnd,
            DataType::UInt64
        );
        test_coercion_binary_rule!(
            DataType::Int8,
            DataType::UInt32,
            Operator::BitwiseAnd,
            DataType::Int64
        );
        test_coercion_binary_rule!(
            DataType::UInt32,
            DataType::Int32,
            Operator::BitwiseAnd,
            DataType::Int64
        );
        test_coercion_binary_rule!(
            DataType::UInt16,
            DataType::Int16,
            Operator::BitwiseAnd,
            DataType::Int32
        );
        test_coercion_binary_rule!(
            DataType::UInt32,
            DataType::UInt32,
            Operator::BitwiseAnd,
            DataType::UInt32
        );
        test_coercion_binary_rule!(
            DataType::UInt16,
            DataType::UInt32,
            Operator::BitwiseAnd,
            DataType::UInt32
        );
        Ok(())
    }