Add new test

tests/core/pyspec/eth2spec/test/phase0/block_processing/test_process_deposit.py

@@ -46,6 +46,24 @@ def test_new_deposit_over_max(spec, state):
     yield from run_deposit_processing(spec, state, deposit, validator_index)
 
 
+@with_all_phases
+@spec_state_test
+def test_new_deposit_with_bad_signature(spec, state):
+    # fresh deposit = next validator index = validator appended to registry
+    validator_index = len(state.validators)
+    # a deposit that is not signed
+    amount = spec.EFFECTIVE_BALANCE_INCREMENT
+    deposit = prepare_state_and_deposit(spec, state, validator_index, amount, signed=False)
+    # save state so we can access pending deposits later
+    pre_state = state
+
+    yield from run_deposit_processing(spec, state, deposit, validator_index, effective=False)
+
+    if is_post_electra(spec):
+        # there should not be a new pending deposit
+        assert state.pending_deposits == pre_state.pending_deposits
+
+
 @with_all_phases
 @spec_state_test
 def test_new_deposit_eth1_withdrawal_credentials(spec, state):