Add more test

tests/core/pyspec/eth2spec/test/phase_1/block_processing/test_process_crosslink.py

@@ -10,7 +10,7 @@
     run_crosslinks_processing,
 )
 from eth2spec.test.helpers.shard_block import build_shard_block
-from eth2spec.test.helpers.state import next_epoch, next_slot
+from eth2spec.test.helpers.state import next_epoch, next_slot, next_slots
 
 
 @with_all_phases_except(['phase0'])
@@ -24,7 +24,8 @@ def test_basic_crosslinks(spec, state):
 
     committee_index = spec.CommitteeIndex(0)
     shard = spec.compute_shard_from_committee_index(state, committee_index, state.slot)
-    shard_block = build_shard_block(spec, state, shard, body=b'\x12' * 10, slot=state.slot, signed=True)
+    body = b'1' * spec.MAX_SHARD_BLOCK_SIZE
+    shard_block = build_shard_block(spec, state, shard, body=body, slot=state.slot, signed=True)
     shard_blocks = [shard_block]
 
     next_slot(spec, state)
@@ -43,10 +44,58 @@ def test_basic_crosslinks(spec, state):
     )
     attestations = [attestation]
 
+    pre_gasprice = state.shard_states[shard].gasprice
     offset_slots = spec.get_offset_slots(state, shard)
+    assert len(offset_slots) == 1
 
     yield from run_crosslinks_processing(spec, state, shard_transitions, attestations)
 
     shard_state = state.shard_states[shard]
     assert shard_state.slot == offset_slots[-1]
     assert shard_state.latest_block_root == shard_block.message.hash_tree_root()
+    assert shard_state == shard_transition.shard_states[len(shard_transition.shard_states) - 1]
+    assert shard_state.gasprice > pre_gasprice
+
+
+@with_all_phases_except(['phase0'])
+@spec_state_test
+@always_bls
+def test_multiple_offset_slots(spec, state):
+    next_epoch(spec, state)
+    next_epoch(spec, state)
+    state = spec.upgrade_to_phase1(state)
+    next_slot(spec, state)
+
+    committee_index = spec.CommitteeIndex(0)
+    shard = spec.compute_shard_from_committee_index(state, committee_index, state.slot)
+    body = b'1' * spec.MAX_SHARD_BLOCK_SIZE
+    shard_block = build_shard_block(spec, state, shard, body=body, slot=state.slot, signed=True)
+    shard_blocks = [shard_block]
+
+    next_slots(spec, state, 3)
+
+    shard_transition = spec.get_shard_transition(state, shard, shard_blocks)
+    shard_transitions = [spec.ShardTransition()] * len(state.shard_states)
+    shard_transitions[shard] = shard_transition
+
+    attestation = get_valid_on_time_attestation(
+        spec,
+        state,
+        slot=state.slot,
+        index=committee_index,
+        shard_transition=shard_transition,
+        signed=True,
+    )
+    attestations = [attestation]
+
+    pre_gasprice = state.shard_states[shard].gasprice
+    offset_slots = spec.get_offset_slots(state, shard)
+    assert len(offset_slots) == 3
+
+    yield from run_crosslinks_processing(spec, state, shard_transitions, attestations)
+
+    shard_state = state.shard_states[shard]
+    assert shard_state.slot == offset_slots[-1]
+    assert shard_state.latest_block_root == shard_block.message.hash_tree_root()
+    assert shard_state == shard_transition.shard_states[len(shard_transition.shard_states) - 1]
+    assert shard_state.gasprice > pre_gasprice