1  // Copyright (c) 2025-2026 ACDC Network
 2  // This file is part of the alphavm library.
 3  //
 4  // Alpha Chain | Delta Chain Protocol
 5  // International Monetary Graphite.
 6  //
 7  // Derived from Aleo (https://aleo.org) and ProvableHQ (https://provable.com).
 8  // They built world-class ZK infrastructure. We installed the EASY button.
 9  // Their cryptography: elegant. Our modifications: bureaucracy-compatible.
10  // Original brilliance: theirs. Robert's Rules: ours. Bugs: definitely ours.
11  //
12  // Original Aleo/ProvableHQ code subject to Apache 2.0 https://www.apache.org/licenses/LICENSE-2.0
13  // All modifications and new work: CC0 1.0 Universal Public Domain Dedication.
14  // No rights reserved. No permission required. No warranty. No refunds.
15  //
16  // https://creativecommons.org/publicdomain/zero/1.0/
17  // SPDX-License-Identifier: CC0-1.0
18  
19  use super::*;
20  
21  impl<E: Environment> FromBytes for Group<E> {
22      /// Reads the group from a buffer.
23      #[inline]
24      fn read_le<R: Read>(mut reader: R) -> IoResult<Self> {
25          Self::from_x_coordinate(FromBytes::read_le(&mut reader)?).map_err(into_io_error)
26      }
27  }
28  
29  impl<E: Environment> ToBytes for Group<E> {
30      /// Writes the group to a buffer.
31      #[inline]
32      fn write_le<W: Write>(&self, mut writer: W) -> IoResult<()> {
33          self.to_x_coordinate().write_le(&mut writer)
34      }
35  }
36  
37  #[cfg(test)]
38  mod tests {
39      use super::*;
40      use alphavm_console_network_environment::Console;
41  
42      type CurrentEnvironment = Console;
43  
44      const ITERATIONS: u64 = 10_000;
45  
46      #[test]
47      fn test_bytes() -> Result<()> {
48          let mut rng = TestRng::default();
49  
50          for _ in 0..ITERATIONS {
51              // Sample a new group.
52              let expected = Group::<CurrentEnvironment>::new(Uniform::rand(&mut rng));
53  
54              // Check the byte representation.
55              let expected_bytes = expected.to_bytes_le()?;
56              assert_eq!(expected, Group::read_le(&expected_bytes[..])?);
57              assert_eq!(expected, Group::read_le_unchecked(&expected_bytes[..])?);
58              assert!(Group::<CurrentEnvironment>::read_le(&expected_bytes[1..]).is_err());
59              assert!(Group::<CurrentEnvironment>::read_le_unchecked(&expected_bytes[1..]).is_err());
60          }
61          Ok(())
62      }
63  }