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Test dropping of abomonated data

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This commit is contained in:
Eduard Bopp 2017-08-14 21:11:24 +02:00
parent a45ef26375
commit 32ac8224ef
1 changed files with 14 additions and 5 deletions
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19
tests/abomonation.rs
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@ -11,14 +11,14 @@ use nalgebra::{
#[test] #[test]
fn abomonate_dmatrix() { fn abomonate_dmatrix() {
assert_encode_and_decode(&DMatrix::<f32>::new_random(3, 5)); assert_encode_and_decode(DMatrix::<f32>::new_random(3, 5));
} }
macro_rules! test_abomonation( macro_rules! test_abomonation(
($($test: ident, $ty: ty);* $(;)*) => {$( ($($test: ident, $ty: ty);* $(;)*) => {$(
#[test] #[test]
fn $test() { fn $test() {
assert_encode_and_decode(&random::<$ty>()); assert_encode_and_decode(random::<$ty>());
} }
)*} )*}
); );
@ -35,12 +35,21 @@ test_abomonation! {
abomonate_quaternion, Quaternion<f32>; abomonate_quaternion, Quaternion<f32>;
} }
fn assert_encode_and_decode<T: Abomonation + PartialEq>(data: &T) { 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(); let mut bytes = Vec::new();
unsafe { encode(data, &mut bytes); } 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) } { if let Some((result, rest)) = unsafe { decode::<T>(&mut bytes) } {
assert!(result == data); assert!(result == &data);
assert!(rest.len() == 0, "binary data was not decoded completely"); assert!(rest.len() == 0, "binary data was not decoded completely");
} }
} }