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Remove TestRandom (#9006)

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We  have a legacy `TestRandom` trait which generates random types for testing and fuzzing.
This function overlaps with `arbitrary` which is used very commonly in the ecosystem.


  Remove `TestRandom` and generate random type instances using `Arbitrary`.


Co-Authored-By: Mac L <mjladson@pm.me>

Co-Authored-By: Michael Sproul <michael@sigmaprime.io>
This commit is contained in:
Mac L
2026-05-05 10:35:57 +04:00
committed by GitHub
parent 4b314d8e79
commit 3351db1ba8
121 changed files with 418 additions and 1141 deletions
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11
consensus/types/tests/state.rs
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@@ -2,15 +2,14 @@
use std::ops::Mul;
use std::sync::LazyLock;
use arbitrary::Arbitrary;
use beacon_chain::test_utils::{BeaconChainHarness, EphemeralHarnessType};
use bls::Keypair;
use fixed_bytes::FixedBytesExtended;
use milhouse::Vector;
use rand::SeedableRng;
use rand_xorshift::XorShiftRng;
use ssz::Encode;
use swap_or_not_shuffle::compute_shuffled_index;
use types::test_utils::{TestRandom, generate_deterministic_keypairs};
use types::test_utils::generate_deterministic_keypairs;
use types::*;
pub const MAX_VALIDATOR_COUNT: usize = 129;
@@ -315,7 +314,7 @@ fn decode_base_and_altair() {
type E = MainnetEthSpec;
let spec = E::default_spec();
let rng = &mut XorShiftRng::from_seed([42; 16]);
let mut u = types::test_utils::test_unstructured();
let fork_epoch = spec.altair_fork_epoch.unwrap();
@@ -328,7 +327,7 @@ fn decode_base_and_altair() {
{
let good_base_state: BeaconState<MainnetEthSpec> = BeaconState::Base(BeaconStateBase {
slot: base_slot,
..<_>::random_for_test(rng)
..<_>::arbitrary(&mut u).unwrap()
});
// It's invalid to have a base state with a slot higher than the fork slot.
let bad_base_state = {
@@ -351,7 +350,7 @@ fn decode_base_and_altair() {
let good_altair_state: BeaconState<MainnetEthSpec> =
BeaconState::Altair(BeaconStateAltair {
slot: altair_slot,
..<_>::random_for_test(rng)
..<_>::arbitrary(&mut u).unwrap()
});
// It's invalid to have an Altair state with a slot lower than the fork slot.
let bad_altair_state = {