nalgebra/tests/abomonation.rs

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extern crate rand;
extern crate nalgebra;
extern crate abomonation;
use rand::random;
use abomonation::{Abomonation, encode, decode};
use nalgebra::{
DMatrix, Matrix3x4, Point3, Translation3, Rotation3, Isometry3, Quaternion,
IsometryMatrix3, Similarity3, SimilarityMatrix3
};
#[test]
fn abomonate_dmatrix() {
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assert_encode_and_decode(DMatrix::<f32>::new_random(3, 5));
}
macro_rules! test_abomonation(
($($test: ident, $ty: ty);* $(;)*) => {$(
#[test]
fn $test() {
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assert_encode_and_decode(random::<$ty>());
}
)*}
);
test_abomonation! {
abomonate_matrix3x4, Matrix3x4<f32>;
abomonate_point3, Point3<f32>;
abomonate_translation3, Translation3<f64>;
abomonate_rotation3, Rotation3<f64>;
abomonate_isometry3, Isometry3<f32>;
abomonate_isometry_matrix3, IsometryMatrix3<f64>;
abomonate_similarity3, Similarity3<f32>;
abomonate_similarity_matrix3, SimilarityMatrix3<f32>;
abomonate_quaternion, Quaternion<f32>;
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}
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fn assert_encode_and_decode<T: Abomonation + PartialEq + Clone>(original_data: T) {
use std::mem::drop;
// Hold on to a clone for later comparison
let data = original_data.clone();
// Encode
let mut bytes = Vec::new();
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unsafe { encode(&original_data, &mut bytes); }
// Drop the original, so that dangling pointers are revealed by the test
drop(original_data);
if let Some((result, rest)) = unsafe { decode::<T>(&mut bytes) } {
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assert!(result == &data);
assert!(rest.len() == 0, "binary data was not decoded completely");
}
}