mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-26 23:57:56 +00:00
Shawn Tabrizi
100 lines
3.0 KiB
Rust
100 lines
3.0 KiB
Rust
// Copyright 2017-2020 Parity Technologies (UK) Ltd.
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// This file is part of Substrate.
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// Substrate is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Substrate is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Substrate. If not, see <http://www.gnu.org/licenses/>.
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//! An unsigned fixed-size integer.
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pub use primitive_types::U256;
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#[cfg(test)]
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mod tests {
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use super::*;
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use codec::{Encode, Decode};
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use sp_serializer as ser;
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macro_rules! test {
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($name: ident, $test_name: ident) => {
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#[test]
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fn $test_name() {
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let tests = vec![
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($name::from(0), "0x0"),
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($name::from(1), "0x1"),
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($name::from(2), "0x2"),
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($name::from(10), "0xa"),
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($name::from(15), "0xf"),
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($name::from(15), "0xf"),
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($name::from(16), "0x10"),
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($name::from(1_000), "0x3e8"),
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($name::from(100_000), "0x186a0"),
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($name::from(u64::max_value()), "0xffffffffffffffff"),
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($name::from(u64::max_value()) + $name::from(1), "0x10000000000000000"),
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];
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for (number, expected) in tests {
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assert_eq!(format!("{:?}", expected), ser::to_string_pretty(&number));
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assert_eq!(number, ser::from_str(&format!("{:?}", expected)).unwrap());
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}
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// Invalid examples
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assert!(ser::from_str::<$name>("\"0x\"").unwrap_err().is_data());
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assert!(ser::from_str::<$name>("\"0xg\"").unwrap_err().is_data());
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assert!(ser::from_str::<$name>("\"\"").unwrap_err().is_data());
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assert!(ser::from_str::<$name>("\"10\"").unwrap_err().is_data());
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assert!(ser::from_str::<$name>("\"0\"").unwrap_err().is_data());
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}
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}
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}
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test!(U256, test_u256);
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#[test]
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fn test_u256_codec() {
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let res1 = vec![120, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0];
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let res2 = vec![0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff];
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assert_eq!(
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U256::from(120).encode(),
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res1);
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assert_eq!(
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U256::max_value().encode(),
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res2);
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assert_eq!(
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U256::decode(&mut &res1[..]),
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Ok(U256::from(120)));
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assert_eq!(
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U256::decode(&mut &res2[..]),
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Ok(U256::max_value()));
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}
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#[test]
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fn test_large_values() {
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assert_eq!(
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ser::to_string_pretty(&!U256::zero()),
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"\"0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff\""
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);
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assert!(
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ser::from_str::<U256>("\"0x1ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff\"")
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.unwrap_err()
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.is_data()
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);
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}
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}
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