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eth2.0-specs
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use better rng practice for reproducibility

This commit is contained in:
Danny Ryan 2020-09-28 18:01:13 -06:00
parent 4e2c7d20b7
commit 76d69263fc
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GPG Key ID: 2765A792E42CE07A
2 changed files with 7 additions and 6 deletions
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11
tests/core/pyspec/eth2spec/test/helpers/deposits.py
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@ -1,4 +1,4 @@
import random
from random import Random
from eth2spec.test.helpers.keys import pubkeys, privkeys
from eth2spec.utils import bls
@ -98,7 +98,8 @@ def prepare_random_genesis_deposits(spec,
min_pubkey_index=0,
max_amount=None,
min_amount=None,
deposit_data_list=None):
deposit_data_list=None,
rng=Random(3131)):
if max_amount is None:
max_amount = spec.MAX_EFFECTIVE_BALANCE
if min_amount is None:
@ -107,11 +108,11 @@ def prepare_random_genesis_deposits(spec,
deposit_data_list = []
deposits = []
for _ in range(num_deposits):
pubkey_index = random.randint(min_pubkey_index, max_pubkey_index)
pubkey_index = rng.randint(min_pubkey_index, max_pubkey_index)
pubkey = pubkeys[pubkey_index]
privkey = privkeys[pubkey_index]
amount = random.randint(min_amount, max_amount)
random_byte = bytes([random.randint(0, 255)])
amount = rng.randint(min_amount, max_amount)
random_byte = bytes([rng.randint(0, 255)])
withdrawal_credentials = spec.BLS_WITHDRAWAL_PREFIX + spec.hash(random_byte)[1:]
deposit, root, deposit_data_list = build_deposit(
spec,

2
tests/core/pyspec/eth2spec/test/phase0/genesis/test_initialization.py
View File

@ -156,7 +156,7 @@ def test_initialize_beacon_state_random_valid_genesis(spec):
# Make a bunch of random deposits
random_deposits, _, deposit_data_list = prepare_random_genesis_deposits(
spec,
num_deposits=30,
num_deposits=20,
min_pubkey_index=spec.MIN_GENESIS_ACTIVE_VALIDATOR_COUNT - 5,
max_pubkey_index=spec.MIN_GENESIS_ACTIVE_VALIDATOR_COUNT + 5,
)