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add comment for helper -- has_enouh_for_reward

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Danny Ryan 2020-05-05 09:43:25 -06:00
parent 3f250f7dd3
commit f35106d9ee
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1 changed files with 6 additions and 0 deletions
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6
tests/core/pyspec/eth2spec/test/helpers/rewards.py
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@ -10,6 +10,12 @@ class Deltas(Container):
def has_enough_for_reward(spec, state, index): def has_enough_for_reward(spec, state, index):
"""
Check if base_reward will be non-zero.
At very low balances, it is possible for a validator have a positive effective_balance
but a zero base reward.
"""
return ( return (
state.validators[index].effective_balance * spec.BASE_REWARD_FACTOR state.validators[index].effective_balance * spec.BASE_REWARD_FACTOR
> spec.integer_squareroot(spec.get_total_active_balance(state)) // spec.BASE_REWARDS_PER_EPOCH > spec.integer_squareroot(spec.get_total_active_balance(state)) // spec.BASE_REWARDS_PER_EPOCH