snarkvm_console_types_address/random.rs
1// Copyright 2024 Aleo Network Foundation
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<E: Environment> Distribution<Address<E>> for Standard {
19 #[inline]
20 fn sample<R: Rng + ?Sized>(&self, rng: &mut R) -> Address<E> {
21 Address::new(Uniform::rand(rng))
22 }
23}
24
25#[cfg(test)]
26mod tests {
27 use super::*;
28 use snarkvm_console_network_environment::Console;
29
30 use std::collections::HashSet;
31
32 type CurrentEnvironment = Console;
33
34 const ITERATIONS: usize = 100;
35
36 #[test]
37 fn test_random() {
38 // Initialize a set to store all seen random elements.
39 let mut set = HashSet::with_capacity(ITERATIONS);
40
41 let mut rng = TestRng::default();
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 address: Address<CurrentEnvironment> = Uniform::rand(&mut rng);
47 assert!(!set.contains(&address));
48
49 // Add the new random value to the set.
50 set.insert(address);
51 }
52 }
53}