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, I: IntegerType> Distribution<Integer<E, I>> for Standard {
22      #[inline]
23      fn sample<R: Rng + ?Sized>(&self, rng: &mut R) -> Integer<E, I> {
24          Integer::new(Uniform::rand(rng))
25      }
26  }
27  
28  #[cfg(test)]
29  mod tests {
30      use super::*;
31      use alphavm_console_network_environment::Console;
32  
33      use std::collections::HashSet;
34  
35      type CurrentEnvironment = Console;
36  
37      const ITERATIONS: usize = 10;
38  
39      fn check_random<I: IntegerType>(rng: &mut TestRng) {
40          // Initialize a set to store all seen random elements.
41          let mut set = HashSet::with_capacity(ITERATIONS);
42  
43          // Note: This test technically has a `(1 + 2 + ... + ITERATIONS) / MODULUS` probability of being flaky.
44          for _ in 0..ITERATIONS {
45              // Sample a random value.
46              let integer: Integer<CurrentEnvironment, I> = Uniform::rand(rng);
47              assert!(!set.contains(&integer));
48  
49              // Add the new random value to the set.
50              set.insert(integer);
51          }
52      }
53  
54      #[test]
55      fn test_random() {
56          let mut rng = TestRng::default();
57  
58          check_random::<u32>(&mut rng);
59          check_random::<u64>(&mut rng);
60          check_random::<u128>(&mut rng);
61  
62          check_random::<i32>(&mut rng);
63          check_random::<i64>(&mut rng);
64          check_random::<i128>(&mut rng);
65      }
66  }