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// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// Copyright by contributors to this project.
// SPDX-License-Identifier: (Apache-2.0 OR MIT)
use mls_rs_codec::{MlsDecode, MlsEncode, MlsSize};
#[derive(Debug, Clone, PartialEq, Eq, MlsSize, MlsEncode, MlsDecode)]
struct TestTupleStruct(u64);
#[derive(Debug, Clone, PartialEq, Eq, MlsSize, MlsEncode, MlsDecode)]
struct TestFieldStruct {
item1: Option<u8>,
item2: u64,
}
#[derive(Debug, Clone, PartialEq, Eq, MlsSize, MlsEncode, MlsDecode)]
struct TestType {
field_a: u8,
field_b: Vec<u8>,
field_c: u16,
field_d: Option<Vec<u8>>,
field_e: u32,
field_f: Option<u16>,
field_g: Vec<TestTupleStruct>,
field_h: TestFieldStruct,
}
#[repr(u16)]
#[derive(Debug, Clone, PartialEq, Eq, MlsSize, MlsEncode, MlsDecode)]
enum TestEnum {
Case1 = 1u16,
Case2(TestFieldStruct) = 200u16,
Case3(TestTupleStruct) = 42u16,
}
#[derive(Debug, Clone, PartialEq, Eq, MlsSize, MlsEncode, MlsDecode)]
#[repr(u8)]
enum TestEnumWithoutSuffixedLiterals {
Case1 = 1,
Case2(TestFieldStruct) = 200,
Case3(TestTupleStruct) = 42,
}
#[derive(Debug, Clone, PartialEq, Eq, MlsSize, MlsEncode, MlsDecode)]
struct TestGeneric<T: MlsSize + MlsEncode + MlsDecode>(T);
#[test]
fn round_trip_struct_encode() {
let item = TestType {
field_a: 42,
field_b: vec![1, 3, 5, 7, 9],
field_c: 65000,
field_d: Some(vec![0, 2, 4, 6, 8]),
field_e: 1000000,
field_f: None,
field_g: vec![
TestTupleStruct(100),
TestTupleStruct(200),
TestTupleStruct(300),
],
field_h: TestFieldStruct {
item1: Some(42),
item2: 84,
},
};
let data = item.mls_encode_to_vec().unwrap();
let restored = TestType::mls_decode(&mut &*data).unwrap();
assert_eq!(restored, item);
}
#[test]
fn round_trip_generic_encode() {
let item = TestGeneric(42u16);
let data = item.mls_encode_to_vec().unwrap();
let restored = TestGeneric::mls_decode(&mut &*data).unwrap();
assert_eq!(restored, item);
}
#[test]
fn round_trip_enum_encode_simple() {
let item = TestEnum::Case1;
let serialized = item.mls_encode_to_vec().unwrap();
let decoded = TestEnum::mls_decode(&mut &*serialized).unwrap();
assert_eq!(serialized, 1u16.mls_encode_to_vec().unwrap());
assert_eq!(decoded, item);
}
#[test]
fn round_trip_enum_encode_one_field() {
let item = TestEnum::Case2(TestFieldStruct {
item1: None,
item2: 42,
});
let serialized = item.mls_encode_to_vec().unwrap();
let decoded = TestEnum::mls_decode(&mut &*serialized).unwrap();
assert_eq!(decoded, item);
}
#[test]
fn round_trip_enum_encode_one_tuple() {
let item = TestEnum::Case3(TestTupleStruct(42));
let serialized = item.mls_encode_to_vec().unwrap();
let decoded = TestEnum::mls_decode(&mut &*serialized).unwrap();
assert_eq!(decoded, item);
}
#[test]
fn round_trip_custom_module_struct() {
#[derive(Debug, PartialEq, Eq, Clone, MlsSize, MlsEncode, MlsDecode)]
struct TestCustomStruct {
#[mls_codec(with = "self::test_with")]
value: u8,
}
let item = TestCustomStruct { value: 33 };
let serialized = item.mls_encode_to_vec().unwrap();
assert_eq!(serialized.len(), 2);
let decoded = TestCustomStruct::mls_decode(&mut &*serialized).unwrap();
assert_eq!(item, decoded);
}
#[test]
fn round_trip_custom_module_enum() {
#[derive(Debug, PartialEq, Eq, Clone, MlsSize, MlsEncode, MlsDecode)]
#[repr(u16)]
enum TestCustomEnum {
CustomCase(#[mls_codec(with = "self::test_with")] u8) = 2u16,
}
let item = TestCustomEnum::CustomCase(33);
let serialized = item.mls_encode_to_vec().unwrap();
assert_eq!(serialized.len(), 4);
let decoded = TestCustomEnum::mls_decode(&mut &*serialized).unwrap();
assert_eq!(item, decoded)
}
mod test_with {
use mls_rs_codec::MlsDecode;
pub fn mls_encoded_len(_val: &u8) -> usize {
2
}
pub fn mls_encode(val: &u8, writer: &mut Vec<u8>) -> Result<(), mls_rs_codec::Error> {
writer.extend([*val, 42]);
Ok(())
}
pub fn mls_decode(reader: &mut &[u8]) -> Result<u8, mls_rs_codec::Error> {
Ok(<[u8; 2]>::mls_decode(reader)?[0])
}
}
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