snarkvm_ledger_puzzle/solution_id/
bytes.rs

1// Copyright (c) 2019-2025 Provable Inc.
2// This file is part of the snarkVM library.
3
4// Licensed under the Apache License, Version 2.0 (the "License");
5// you may not use this file except in compliance with the License.
6// You may obtain a copy of the License at:
7
8// http://www.apache.org/licenses/LICENSE-2.0
9
10// Unless required by applicable law or agreed to in writing, software
11// distributed under the License is distributed on an "AS IS" BASIS,
12// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13// See the License for the specific language governing permissions and
14// limitations under the License.
15
16use super::*;
17
18impl<N: Network> FromBytes for SolutionID<N> {
19    /// Reads the solution ID from the buffer.
20    fn read_le<R: Read>(mut reader: R) -> IoResult<Self> {
21        let nonce = u64::read_le(&mut reader)?;
22
23        Ok(Self::from(nonce))
24    }
25}
26
27impl<N: Network> ToBytes for SolutionID<N> {
28    /// Writes the solution ID to the buffer.
29    fn write_le<W: Write>(&self, mut writer: W) -> IoResult<()> {
30        self.0.write_le(&mut writer)
31    }
32}
33
34#[cfg(test)]
35mod tests {
36    use super::*;
37    use console::network::MainnetV0;
38
39    type CurrentNetwork = MainnetV0;
40
41    #[test]
42    fn test_bytes() -> Result<()> {
43        let mut rng = TestRng::default();
44        // Sample a new solution ID.
45        let expected = SolutionID::<CurrentNetwork>::from(rng.gen::<u64>());
46
47        // Check the byte representation.
48        let expected_bytes = expected.to_bytes_le()?;
49        assert_eq!(expected_bytes.len(), 8);
50        assert_eq!(expected, SolutionID::read_le(&expected_bytes[..])?);
51        assert!(SolutionID::<CurrentNetwork>::read_le(&expected_bytes[1..]).is_err());
52
53        Ok(())
54    }
55}