mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-26 14:37:57 +00:00
Bastian Köcher
116 lines
3.7 KiB
Rust
116 lines
3.7 KiB
Rust
// This file is part of Substrate.
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// Copyright (C) 2017-2022 Parity Technologies (UK) Ltd.
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// SPDX-License-Identifier: Apache-2.0
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//! A fixed hash type.
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pub use primitive_types::{H160, H256, H512};
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/// Hash conversion. Used to convert between unbound associated hash types in traits,
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/// implemented by the same hash type.
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/// Panics if used to convert between different hash types.
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pub fn convert_hash<H1: Default + AsMut<[u8]>, H2: AsRef<[u8]>>(src: &H2) -> H1 {
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let mut dest = H1::default();
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assert_eq!(dest.as_mut().len(), src.as_ref().len());
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dest.as_mut().copy_from_slice(src.as_ref());
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dest
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use sp_serializer as ser;
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#[test]
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fn test_h160() {
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let tests = vec![
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(Default::default(), "0x0000000000000000000000000000000000000000"),
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(H160::from_low_u64_be(2), "0x0000000000000000000000000000000000000002"),
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(H160::from_low_u64_be(15), "0x000000000000000000000000000000000000000f"),
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(H160::from_low_u64_be(16), "0x0000000000000000000000000000000000000010"),
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(H160::from_low_u64_be(1_000), "0x00000000000000000000000000000000000003e8"),
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(H160::from_low_u64_be(100_000), "0x00000000000000000000000000000000000186a0"),
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(H160::from_low_u64_be(u64::MAX), "0x000000000000000000000000ffffffffffffffff"),
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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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}
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#[test]
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fn test_h256() {
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let tests = vec![
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(
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Default::default(),
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"0x0000000000000000000000000000000000000000000000000000000000000000",
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),
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(
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H256::from_low_u64_be(2),
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"0x0000000000000000000000000000000000000000000000000000000000000002",
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),
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(
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H256::from_low_u64_be(15),
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"0x000000000000000000000000000000000000000000000000000000000000000f",
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),
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(
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H256::from_low_u64_be(16),
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"0x0000000000000000000000000000000000000000000000000000000000000010",
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),
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(
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H256::from_low_u64_be(1_000),
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"0x00000000000000000000000000000000000000000000000000000000000003e8",
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),
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(
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H256::from_low_u64_be(100_000),
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"0x00000000000000000000000000000000000000000000000000000000000186a0",
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),
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(
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H256::from_low_u64_be(u64::MAX),
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"0x000000000000000000000000000000000000000000000000ffffffffffffffff",
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),
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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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}
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#[test]
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fn test_invalid() {
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assert!(ser::from_str::<H256>(
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"\"0x000000000000000000000000000000000000000000000000000000000000000\""
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)
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.unwrap_err()
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.is_data());
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assert!(ser::from_str::<H256>(
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"\"0x000000000000000000000000000000000000000000000000000000000000000g\""
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)
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.unwrap_err()
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.is_data());
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assert!(ser::from_str::<H256>(
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"\"0x00000000000000000000000000000000000000000000000000000000000000000\""
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)
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.unwrap_err()
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.is_data());
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assert!(ser::from_str::<H256>("\"\"").unwrap_err().is_data());
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assert!(ser::from_str::<H256>("\"0\"").unwrap_err().is_data());
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assert!(ser::from_str::<H256>("\"10\"").unwrap_err().is_data());
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}
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}
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