check for deserialized equality to ensure round-tripping (#64)

enable "float_roundtrip" in serde_json to make it pass; operating without this feature is a tripping hazard.

Cargo.toml

@@ -84,7 +84,7 @@ ron = { version = "0.8.1", optional = true }
 serde = { version = "1.0.190", features = ["derive"], optional = true }
 serde_bare = { version = "0.5.0", optional = true }
 serde_cbor = { version = "0.11.2", optional = true }
-serde_json = { version = "1.0.108", optional = true }
+serde_json = { version = "1.0.108", features = ["float_roundtrip"], optional = true }
 simd-json = { version = "0.13.4", optional = true }
 simd-json-derive = { version = "0.13.0", optional = true }
 speedy = { version = "0.8.6", optional = true }

src/bench_abomonation.rs

@@ -3,7 +3,7 @@ use criterion::{black_box, Criterion};
 
 pub fn bench<T, R>(name: &'static str, c: &mut Criterion, data: &T, read: R)
 where
-    T: Abomonation + Clone,
+    T: Abomonation + Clone + PartialEq,
     R: Fn(&T),
 {
     const BUFFER_LEN: usize = 10_000_000;
@@ -49,5 +49,12 @@ where
 
     crate::bench_size(name, "abomonation", deserialize_buffer.as_slice());
 
+    assert!(
+        unsafe { decode::<T>(black_box(&mut deserialize_buffer)) }
+            .unwrap()
+            .0
+            == data
+    );
+
     group.finish();
 }

src/bench_bincode.rs

@@ -2,7 +2,7 @@ use criterion::{black_box, Criterion};
 
 pub fn bench<T>(name: &'static str, c: &mut Criterion, data: &T)
 where
-    T: bincode::Encode + bincode::Decode,
+    T: bincode::Encode + bincode::Decode + PartialEq,
 {
     const BUFFER_LEN: usize = 10_000_000;
     let mut group = c.benchmark_group(format!("{}/bincode", name));
@@ -32,5 +32,12 @@ where
 
     crate::bench_size(name, "bincode", buffer);
 
+    assert!(
+        bincode::decode_from_slice::<T, _>(black_box(buffer), conf)
+            .unwrap()
+            .0
+            == *data
+    );
+
     group.finish();
 }

src/bench_bincode1.rs

@@ -3,7 +3,7 @@ use serde::{Deserialize, Serialize};
 
 pub fn bench<T>(name: &'static str, c: &mut Criterion, data: &T)
 where
-    T: Serialize + for<'de> Deserialize<'de>,
+    T: Serialize + for<'de> Deserialize<'de> + PartialEq,
 {
     const BUFFER_LEN: usize = 10_000_000;
 
@@ -29,5 +29,7 @@ where
 
     crate::bench_size(name, "bincode1", deserialize_buffer.as_slice());
 
+    assert!(bincode1::deserialize::<'_, T>(black_box(&deserialize_buffer)).unwrap() == *data);
+
     group.finish();
 }

src/bench_bitcode.rs

@@ -3,7 +3,7 @@ use criterion::{black_box, Criterion};
 
 pub fn bench<T>(name: &'static str, c: &mut Criterion, data: &T)
 where
-    T: Encode + DecodeOwned,
+    T: Encode + DecodeOwned + PartialEq,
 {
     let mut group = c.benchmark_group(format!("{}/bitcode", name));
     let mut buffer = bitcode::EncodeBuffer::<T>::default();
@@ -25,5 +25,7 @@ where
 
     crate::bench_size(name, "bitcode", encoded);
 
+    assert!(buffer.decode(&encoded).unwrap() == *data);
+
     group.finish();
 }

src/bench_borsh.rs

@@ -3,7 +3,7 @@ use criterion::{black_box, Criterion};
 
 pub fn bench<T>(name: &'static str, c: &mut Criterion, data: &T)
 where
-    T: BorshSerialize + BorshDeserialize,
+    T: BorshSerialize + BorshDeserialize + PartialEq,
 {
     const BUFFER_LEN: usize = 10_000_000;
 
@@ -28,5 +28,7 @@ where
 
     crate::bench_size(name, "borsh", deserialize_buffer.as_slice());
 
+    assert!(T::deserialize(&mut deserialize_buffer.as_slice()).unwrap() == *data);
+
     group.finish();
 }

src/bench_bson.rs

@@ -3,7 +3,7 @@ use serde::{Deserialize, Serialize};
 
 pub fn bench<T>(name: &'static str, c: &mut Criterion, data: &T)
 where
-    T: Serialize + for<'de> Deserialize<'de>,
+    T: Serialize + for<'de> Deserialize<'de> + PartialEq,
 {
     const BUFFER_LEN: usize = 50_000_000;
 
@@ -31,5 +31,7 @@ where
 
     crate::bench_size(name, "bson", deserialize_buffer.as_slice());
 
+    assert!(bson::from_slice::<T>(&deserialize_buffer).unwrap() == *data);
+
     group.finish();
 }

src/bench_cbor4ii.rs

@@ -3,7 +3,7 @@ use serde::{Deserialize, Serialize};
 
 pub fn bench<T>(name: &'static str, c: &mut Criterion, data: &T)
 where
-    T: Serialize + for<'de> Deserialize<'de>,
+    T: Serialize + for<'de> Deserialize<'de> + PartialEq,
 {
     const BUFFER_LEN: usize = 50_000_000;
 
@@ -29,5 +29,7 @@ where
 
     crate::bench_size(name, "cbor4ii", deserialize_buffer.as_slice());
 
+    assert!(cbor4ii::serde::from_slice::<T>(&deserialize_buffer).unwrap() == *data);
+
     group.finish();
 }

src/bench_ciborium.rs

@@ -3,7 +3,7 @@ use serde::{Deserialize, Serialize};
 
 pub fn bench<T>(name: &'static str, c: &mut Criterion, data: &T)
 where
-    T: Serialize + for<'de> Deserialize<'de>,
+    T: Serialize + for<'de> Deserialize<'de> + PartialEq,
 {
     const BUFFER_LEN: usize = 50_000_000;
 
@@ -35,5 +35,7 @@ where
 
     crate::bench_size(name, "ciborium", deserialize_buffer.as_slice());
 
+    assert!(ciborium::de::from_reader::<T, _>(deserialize_buffer.as_slice()).unwrap() == *data);
+
     group.finish();
 }

src/bench_databuf.rs

@@ -3,7 +3,7 @@ use databuf::{config::num::LE, *};
 
 pub fn bench<T>(name: &'static str, c: &mut Criterion, data: &T)
 where
-    T: Encode + for<'de> Decode<'de>,
+    T: Encode + for<'de> Decode<'de> + PartialEq,
 {
     const BUFFER_LEN: usize = 10_000_000;
 
@@ -27,5 +27,7 @@ where
 
     crate::bench_size(name, "databuf", deserialize_buffer.as_slice());
 
+    assert!(T::from_bytes::<LE>(&deserialize_buffer).unwrap() == *data);
+
     group.finish();
 }

src/bench_dlhn.rs

@@ -3,7 +3,7 @@ use serde::{Deserialize, Serialize};
 
 pub fn bench<T>(name: &'static str, c: &mut Criterion, data: &T)
 where
-    T: Serialize + for<'de> Deserialize<'de>,
+    T: Serialize + for<'de> Deserialize<'de> + PartialEq,
 {
     const BUFFER_LEN: usize = 10_000_000;
 
@@ -39,5 +39,13 @@ where
 
     crate::bench_size(name, "dlhn", deserialize_buffer.as_slice());
 
+    assert!(
+        <T>::deserialize(&mut dlhn::de::Deserializer::new(
+            &mut deserialize_buffer.as_slice()
+        ))
+        .unwrap()
+            == *data
+    );
+
     group.finish();
 }

src/bench_msgpacker.rs

@@ -4,7 +4,7 @@ use msgpacker::prelude::*;
 
 pub fn bench<T>(name: &'static str, c: &mut Criterion, data: &T)
 where
-    T: Packable + Unpackable,
+    T: Packable + Unpackable + PartialEq,
     <T as Unpackable>::Error: fmt::Debug,
 {
     const BUFFER_LEN: usize = 10_000_000;
@@ -30,5 +30,7 @@ where
 
     crate::bench_size(name, "msgpacker", &deserialize_buffer);
 
+    assert!(T::unpack(&deserialize_buffer).unwrap().1 == *data);
+
     group.finish();
 }

src/bench_nachricht_serde.rs

@@ -3,7 +3,7 @@ use serde::{Deserialize, Serialize};
 
 pub fn bench<T>(name: &'static str, c: &mut Criterion, data: &T)
 where
-    T: Serialize + for<'de> Deserialize<'de>,
+    T: Serialize + for<'de> Deserialize<'de> + PartialEq,
 {
     const BUFFER_LEN: usize = 25_000_000;
 
@@ -32,5 +32,7 @@ where
 
     crate::bench_size(name, "nachricht-serde", deserialize_buffer.as_slice());
 
+    assert!(nachricht_serde::from_bytes::<T>(&deserialize_buffer).unwrap() == *data);
+
     group.finish();
 }

src/bench_nanoserde.rs

@@ -3,7 +3,7 @@ use nanoserde::{DeBin, SerBin};
 
 pub fn bench<T>(name: &'static str, c: &mut Criterion, data: &T)
 where
-    T: DeBin + SerBin,
+    T: DeBin + SerBin + PartialEq,
 {
     let mut group = c.benchmark_group(format!("{}/nanoserde", name));
 
@@ -24,5 +24,7 @@ where
 
     crate::bench_size(name, "nanoserde", deserialize_buffer.as_slice());
 
+    assert!(<T as DeBin>::deserialize_bin(&deserialize_buffer).unwrap() == *data);
+
     group.finish();
 }

src/bench_parity_scale_codec.rs

@@ -3,7 +3,7 @@ use parity_scale_codec::{Decode, Encode};
 
 pub fn bench<T>(name: &'static str, c: &mut Criterion, data: &T)
 where
-    T: Encode + Decode,
+    T: Encode + Decode + PartialEq,
 {
     const BUFFER_LEN: usize = 10_000_000;
 
@@ -27,5 +27,7 @@ where
 
     crate::bench_size(name, "parity-scale-codec", deserialize_buffer.as_slice());
 
+    assert!(T::decode(&mut deserialize_buffer.as_slice()).unwrap() == *data);
+
     group.finish();
 }

src/bench_postcard.rs

@@ -3,7 +3,7 @@ use serde::{Deserialize, Serialize};
 
 pub fn bench<T>(name: &'static str, c: &mut Criterion, data: &T)
 where
-    T: Serialize + for<'de> Deserialize<'de>,
+    T: Serialize + for<'de> Deserialize<'de> + PartialEq,
 {
     const BUFFER_LEN: usize = 10_000_000;
 
@@ -29,5 +29,7 @@ where
 
     crate::bench_size(name, "postcard", deserialize_buffer.as_slice());
 
+    assert!(postcard::from_bytes::<T>(&deserialize_buffer).unwrap() == *data);
+
     group.finish();
 }

src/bench_pot.rs

@@ -3,7 +3,7 @@ use serde::{Deserialize, Serialize};
 
 pub fn bench<T>(name: &'static str, c: &mut Criterion, data: &T)
 where
-    T: Serialize + for<'de> Deserialize<'de>,
+    T: Serialize + for<'de> Deserialize<'de> + PartialEq,
 {
     const BUFFER_LEN: usize = 70_000_000;
 
@@ -29,5 +29,7 @@ where
 
     crate::bench_size(name, "pot", deserialize_buffer.as_slice());
 
+    assert!(pot::from_slice::<T>(&deserialize_buffer).unwrap() == *data);
+
     group.finish();
 }

src/bench_prost.rs

@@ -45,7 +45,7 @@ where
 
     crate::bench_size(name, "prost", deserialize_buffer.as_slice());
 
-    assert!(&<T::Message>::decode(&*deserialize_buffer).unwrap().into() == data);
+    assert!(<T::Message>::decode(&*deserialize_buffer).unwrap().into() == *data);
 
     group.finish();
 }

src/bench_rkyv.rs

@@ -1,3 +1,4 @@
+use bincode1::Options;
 use core::pin::Pin;
 
 use bytecheck::CheckBytes;
@@ -20,7 +21,7 @@ pub type BenchSerializer<'a> = CompositeSerializer<
 
 pub fn bench<T, R, U>(name: &'static str, c: &mut Criterion, data: &T, read: R, update: U)
 where
-    T: Archive + for<'a> Serialize<BenchSerializer<'a>>,
+    T: Archive + for<'a> Serialize<BenchSerializer<'a>> + PartialEq,
     T::Archived: for<'a> CheckBytes<DefaultValidator<'a>> + Deserialize<T, Infallible>,
     R: Fn(&T::Archived),
     U: Fn(Pin<&mut T::Archived>),
@@ -134,5 +135,13 @@ where
 
     crate::bench_size(name, "rkyv", deserialize_buffer);
 
+    assert!(
+        check_archived_value::<T>(deserialize_buffer.as_ref(), pos)
+            .unwrap()
+            .deserialize(&mut Infallible)
+            .unwrap()
+            == *data
+    );
+
     group.finish();
 }

src/bench_rmp_serde.rs

@@ -3,7 +3,7 @@ use serde::{Deserialize, Serialize};
 
 pub fn bench<T>(name: &'static str, c: &mut Criterion, data: &T)
 where
-    T: Serialize + for<'de> Deserialize<'de>,
+    T: Serialize + for<'de> Deserialize<'de> + PartialEq,
 {
     const BUFFER_LEN: usize = 10_000_000;
 
@@ -32,5 +32,7 @@ where
 
     crate::bench_size(name, "rmp-serde", deserialize_buffer.as_slice());
 
+    assert!(rmp_serde::from_slice::<T>(&deserialize_buffer).unwrap() == *data);
+
     group.finish();
 }

src/bench_ron.rs

@@ -3,7 +3,7 @@ use serde::{Deserialize, Serialize};
 
 pub fn bench<T>(name: &'static str, c: &mut Criterion, data: &T)
 where
-    T: Serialize + for<'de> Deserialize<'de>,
+    T: Serialize + for<'de> Deserialize<'de> + PartialEq,
 {
     const BUFFER_LEN: usize = 50_000_000;
 
@@ -29,5 +29,7 @@ where
 
     crate::bench_size(name, "ron", deserialize_buffer.as_slice());
 
+    assert!(ron::de::from_bytes::<T>(&deserialize_buffer).unwrap() == *data);
+
     group.finish();
 }

src/bench_savefile.rs

@@ -4,7 +4,7 @@ use std::io::Cursor;
 
 pub fn bench<T>(name: &'static str, c: &mut Criterion, data: &T)
 where
-    T: Serialize + Deserialize + WithSchema,
+    T: Serialize + Deserialize + WithSchema + PartialEq,
 {
     let mut group = c.benchmark_group(format!("{}/savefile", name));
 
@@ -29,5 +29,9 @@ where
 
     crate::bench_size(name, "savefile", deserialize_buffer.as_slice());
 
+    assert!(
+        savefile::load_noschema::<T>(&mut Cursor::new(&deserialize_buffer), 0).unwrap() == *data
+    );
+
     group.finish();
 }