Apply PR#1677 feedback

Author: hwwhww

tests/beacon/conftest.py

@@ -385,10 +385,7 @@ def ten_validators_state(empty_beacon_state, max_deposit, far_future_slot):
             )
             for pubkey in range(validator_count)
         ),
-        validator_balances=tuple(
-            max_deposit * GWEI_PER_ETH
-            for _ in range(validator_count)
-        )
+        validator_balances=(max_deposit * GWEI_PER_ETH,) * validator_count,
     )
 
 
@@ -482,10 +479,12 @@ def deposit_contract_tree_depth():
 def min_deposit():
     return SERENITY_CONFIG.MIN_DEPOSIT
 
+
 @pytest.fixture
 def max_deposit():
     return SERENITY_CONFIG.MAX_DEPOSIT
 
+
 @pytest.fixture
 def genesis_fork_version():
     return SERENITY_CONFIG.GENESIS_FORK_VERSION

tests/beacon/state_machines/test_proposer_signature_validation.py

@@ -57,10 +57,7 @@ def test_validate_serenity_proposer_signature(
             mock_validator_record(proposer_pubkey, far_future_slot)
             for _ in range(10)
         ),
-        validator_balances=tuple(
-            max_deposit * GWEI_PER_ETH
-            for _ in range(10)
-        ),
+        validator_balances=(max_deposit * GWEI_PER_ETH,) * 10,
         shard_committees_at_slots=get_sample_shard_committees_at_slots(
             num_slot=128,
             num_shard_committee_per_slot=10,

tests/beacon/test_deposit_helpers.py

@@ -36,10 +36,7 @@ def test_add_pending_validator(sample_beacon_state_params,
             ValidatorRecord(**sample_validator_record_params)
             for _ in range(validator_registry_len)
         ],
-        validator_balances=[
-            100
-            for _ in range(validator_registry_len)
-        ],
+        validator_balances=(100,) * validator_registry_len,
     )
     validator = ValidatorRecord(**sample_validator_record_params)
     amount = 5566

tests/beacon/types/test_states.py

@@ -52,10 +52,7 @@ def test_num_validators(expected,
             )
             for pubkey in range(expected)
         ),
-        validator_balances=tuple(
-            max_deposit * GWEI_PER_ETH
-            for _ in range(expected)
-        )
+        validator_balances=(max_deposit * GWEI_PER_ETH,) * expected,
     )
 
     assert state.num_validators == expected