arrow2_convert 0.1.0

Convert between nested rust types and Arrow with arrow2
Documentation 
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use arrow2::array::*;
use arrow2::error::Result;
use arrow2_convert::deserialize::*;
use arrow2_convert::serialize::*;
use arrow2_convert::ArrowField;
use arrow2_convert::field::LargeString;

#[test]
fn test_deserialize_iterator() {
    use arrow2::array::*;
    use arrow2_convert::deserialize::*;
    use arrow2_convert::serialize::*;
    use std::borrow::Borrow;

    #[derive(Debug, Clone, PartialEq, ArrowField)]
    struct S {
        a1: i64,
    }

    let original_array = [S { a1: 1 }, S { a1: 100 }, S { a1: 1000 }];

    let b: Box<dyn Array> = original_array.try_into_arrow().unwrap();

    let iter = arrow_array_deserialize_iterator::<S>(b.borrow()).unwrap();

    for (i, k) in iter.zip(original_array.iter()) {
        assert_eq!(&i, k);
    }
}

#[test]
fn test_deserialize_schema_mismatch_error() {
    #[derive(Debug, Clone, PartialEq, ArrowField)]
    struct S1 {
        a: i64,
    }
    #[derive(Debug, Clone, PartialEq, ArrowField)]
    struct S2 {
        a: String,
    }

    let arr1 = vec![S1 { a: 1 }, S1 { a: 2 }];
    let arr1: Box<dyn Array> = arr1.try_into_arrow().unwrap();

    let result: Result<Vec<S2>> = arr1.try_into_collection();
    assert!(result.is_err());
}

#[test]
fn test_deserialize_large_types_schema_mismatch_error() {
    #[derive(Debug, Clone, PartialEq, ArrowField)]
    struct S1 {
        a: String,
    }
    #[derive(Debug, Clone, PartialEq, ArrowField)]
    struct S2 {
        #[arrow_field(override="LargeString")]
        a: String,
    }

    let arr1 = vec![S1 { a: "123".to_string() }, S1 { a: "333".to_string() }];
    let arr1: Box<dyn Array> = arr1.try_into_arrow().unwrap();

    let result: Result<Vec<S2>> = arr1.try_into_collection();
    assert!(result.is_err());
}