Remove `is_execution_enabled` condition since Capella

specs/_features/eip6110/beacon-chain.md

@@ -176,9 +176,8 @@ class BeaconState(Container):
 ```python
 def process_block(state: BeaconState, block: BeaconBlock) -> None:
     process_block_header(state, block)
-    if is_execution_enabled(state, block.body):
-        process_withdrawals(state, block.body.execution_payload)
-        process_execution_payload(state, block.body.execution_payload, EXECUTION_ENGINE)  # [Modified in EIP6110]
+    process_withdrawals(state, block.body.execution_payload)
+    process_execution_payload(state, block.body.execution_payload, EXECUTION_ENGINE)  # [Modified in EIP6110]
     process_randao(state, block.body)
     process_eth1_data(state, block.body)
     process_operations(state, block.body)  # [Modified in EIP6110]
@@ -212,8 +211,7 @@ def process_operations(state: BeaconState, body: BeaconBlockBody) -> None:
     for_ops(body.bls_to_execution_changes, process_bls_to_execution_change)
 
     # [New in EIP6110]
-    if is_execution_enabled(state, body):
-        for_ops(body.execution_payload.deposit_receipts, process_deposit_receipt)
+    for_ops(body.execution_payload.deposit_receipts, process_deposit_receipt)
 ```
 
 #### New `process_deposit_receipt`

specs/_features/sharding/beacon-chain.md

@@ -236,8 +236,7 @@ def process_block(state: BeaconState, block: BeaconBlock) -> None:
     process_block_header(state, block)
     verify_builder_block_bid(state, block)
     process_sharded_data(state, block)
-    if is_execution_enabled(state, block.body):
-        process_execution_payload(state, block, EXECUTION_ENGINE)
+    process_execution_payload(state, block, EXECUTION_ENGINE)
 
     if not is_builder_block_slot(block.slot):
         process_randao(state, block.body)

specs/capella/beacon-chain.md

@@ -331,9 +331,9 @@ def process_historical_summaries_update(state: BeaconState) -> None:
 ```python
 def process_block(state: BeaconState, block: BeaconBlock) -> None:
     process_block_header(state, block)
-    if is_execution_enabled(state, block.body):
-        process_withdrawals(state, block.body.execution_payload)  # [New in Capella]
-        process_execution_payload(state, block.body.execution_payload, EXECUTION_ENGINE)  # [Modified in Capella]
+    # Removed `is_execution_enabled` check
+    process_withdrawals(state, block.body.execution_payload)  # [New in Capella]
+    process_execution_payload(state, block.body.execution_payload, EXECUTION_ENGINE)  # [Modified in Capella]
     process_randao(state, block.body)
     process_eth1_data(state, block.body)
     process_operations(state, block.body)  # [Modified in Capella]

specs/deneb/beacon-chain.md

@@ -200,9 +200,8 @@ def verify_kzg_commitments_against_transactions(transactions: Sequence[Transacti
 ```python
 def process_block(state: BeaconState, block: BeaconBlock) -> None:
     process_block_header(state, block)
-    if is_execution_enabled(state, block.body):
-        process_withdrawals(state, block.body.execution_payload)
-        process_execution_payload(state, block.body.execution_payload, EXECUTION_ENGINE)  # [Modified in Deneb]
+    process_withdrawals(state, block.body.execution_payload)
+    process_execution_payload(state, block.body.execution_payload, EXECUTION_ENGINE)  # [Modified in Deneb]
     process_randao(state, block.body)
     process_eth1_data(state, block.body)
     process_operations(state, block.body)

tests/core/pyspec/eth2spec/test/bellatrix/sanity/test_blocks.py

@@ -10,7 +10,10 @@ from eth2spec.test.helpers.execution_payload import (
     build_randomized_execution_payload
 )
 from eth2spec.test.context import (
-    with_bellatrix_and_later, spec_state_test
+    BELLATRIX,
+    with_bellatrix_and_later,
+    with_phases,
+    spec_state_test,
 )
 
 
@@ -44,7 +47,7 @@ def test_empty_block_transition_randomized_payload(spec, state):
     yield 'post', state
 
 
-@with_bellatrix_and_later
+@with_phases([BELLATRIX])
 @spec_state_test
 def test_is_execution_enabled_false(spec, state):
     # Set `latest_execution_payload_header` to empty

tests/core/pyspec/eth2spec/test/capella/sanity/test_blocks.py

@@ -31,6 +31,29 @@ from eth2spec.test.helpers.deposits import (
 from eth2spec.test.helpers.voluntary_exits import prepare_signed_exits
 
 
+#
+# `is_execution_enabled` has been removed from Capella
+#
+
+@with_capella_and_later
+@spec_state_test
+def test_invalid_is_execution_enabled_false(spec, state):
+    # Set `latest_execution_payload_header` to empty
+    state.latest_execution_payload_header = spec.ExecutionPayloadHeader()
+    yield 'pre', state
+
+    block = build_empty_block_for_next_slot(spec, state)
+
+    # Set `execution_payload` to empty
+    block.body.execution_payload = spec.ExecutionPayload()
+    assert len(block.body.execution_payload.transactions) == 0
+
+    signed_block = state_transition_and_sign_block(spec, state, block, expect_fail=True)
+
+    yield 'blocks', [signed_block]
+    yield 'post', None
+
+
 #
 # BLSToExecutionChange
 #