Add `test_invalid_data_unavailable`

tests/core/pyspec/eth2spec/test/deneb/fork_choice/test_on_block.py

@@ -89,7 +89,7 @@ def test_invalid_incorrect_proof(spec, state):
     assert store.time == current_time
 
     # On receiving a block of `GENESIS_SLOT + 1` slot
-    block, blobs, blob_kzg_proofs = get_block_with_blob(spec, state, rng=rng)
+    block, blobs, _ = get_block_with_blob(spec, state, rng=rng)
     signed_block = state_transition_and_sign_block(spec, state, block)
     # Insert incorrect proof
     blob_kzg_proofs = [b'\xc0' + b'\x00' * 47]
@@ -103,3 +103,34 @@ def test_invalid_incorrect_proof(spec, state):
     assert spec.get_head(store) != signed_block.message.hash_tree_root()
 
     yield 'steps', test_steps
+
+
+@with_deneb_and_later
+@spec_state_test
+def test_invalid_data_unavailable(spec, state):
+    rng = Random(1234)
+
+    test_steps = []
+    # Initialization
+    store, anchor_block = get_genesis_forkchoice_store_and_block(spec, state)
+    yield 'anchor_state', state
+    yield 'anchor_block', anchor_block
+    current_time = state.slot * spec.config.SECONDS_PER_SLOT + store.genesis_time
+    on_tick_and_append_step(spec, store, current_time, test_steps)
+    assert store.time == current_time
+
+    # On receiving a block of `GENESIS_SLOT + 1` slot
+    block, _, _ = get_block_with_blob(spec, state, rng=rng)
+    signed_block = state_transition_and_sign_block(spec, state, block)
+
+    # data unavailable
+    blob_data = BlobData([], [])
+
+    def run_func_1():
+        yield from tick_and_add_block(spec, store, signed_block, test_steps, blob_data=blob_data, valid=False)
+
+    yield from with_blob_data(spec, blob_data, run_func_1)
+
+    assert spec.get_head(store) != signed_block.message.hash_tree_root()
+
+    yield 'steps', test_steps