Files
pezkuwi-subxt/substrate/primitives/core/src/uint.rs
T
Andronik 9e423925f6 update kvdb & co (#12312)
* upgrade kvdb & co

* remove patch

* update Cargo.lock

* upgrade impl-serde

* fix parsing test

* actually fix it

* FFS
2022-10-05 21:07:15 +00:00

91 lines
2.7 KiB
Rust

// This file is part of Substrate.
// Copyright (C) 2017-2022 Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: Apache-2.0
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//! An unsigned fixed-size integer.
pub use primitive_types::{U256, U512};
#[cfg(test)]
mod tests {
use super::*;
use codec::{Decode, Encode};
use sp_serializer as ser;
macro_rules! test {
($name: ident, $test_name: ident) => {
#[test]
fn $test_name() {
let tests = vec![
($name::from(0), "0x0"),
($name::from(1), "0x1"),
($name::from(2), "0x2"),
($name::from(10), "0xa"),
($name::from(15), "0xf"),
($name::from(16), "0x10"),
($name::from(1_000), "0x3e8"),
($name::from(100_000), "0x186a0"),
($name::from(u64::MAX), "0xffffffffffffffff"),
($name::from(u64::MAX) + $name::from(1), "0x10000000000000000"),
];
for (number, expected) in tests {
assert_eq!(format!("{:?}", expected), ser::to_string_pretty(&number));
assert_eq!(number, ser::from_str(&format!("{:?}", expected)).unwrap());
}
// Invalid examples
assert!(ser::from_str::<$name>("\"0x\"").unwrap_err().is_data());
assert!(ser::from_str::<$name>("\"0xg\"").unwrap_err().is_data());
assert!(ser::from_str::<$name>("\"\"").unwrap_err().is_data());
}
};
}
test!(U256, test_u256);
#[test]
fn test_u256_codec() {
let res1 = vec![
120, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0,
];
let res2 = vec![
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
];
assert_eq!(U256::from(120).encode(), res1);
assert_eq!(U256::max_value().encode(), res2);
assert_eq!(U256::decode(&mut &res1[..]), Ok(U256::from(120)));
assert_eq!(U256::decode(&mut &res2[..]), Ok(U256::max_value()));
}
#[test]
fn test_large_values() {
assert_eq!(
ser::to_string_pretty(&!U256::zero()),
"\"0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff\""
);
assert!(ser::from_str::<U256>(
"\"0x1ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff\""
)
.unwrap_err()
.is_data());
}
}