fix: 0 token id

Author: exploreriii

src/hiero_sdk_python/tokens/token_pause_transaction.py

@@ -51,8 +51,8 @@ def build_transaction_body(self):
         Raises:
         ValueError: If no token_id has been set.
         """
-        if self.token_id is None:
-            raise ValueError("token_id must be set before building the transaction body")
+        if self.token_id is None or self.token_id.num == 0:
+             raise ValueError("token_id must be set before building the transaction body")
 
         token_pause_body = TokenPauseTransactionBody(
             token=self.token_id.to_proto()

tests/unit/test_token_pause_transaction.py

@@ -37,6 +37,7 @@ def _make(pause_key):
 
     return _make
 
+@pytest.fixture
 def test_builds_token_pause_body_with_correct_ids(mock_account_ids, generate_transaction_id):
     """
     build_transaction_body() should embed:
@@ -56,7 +57,6 @@ def test_builds_token_pause_body_with_correct_ids(mock_account_ids, generate_tra
     assert body.transactionID     == tx.transaction_id.to_proto()
     assert body.nodeAccountID     == tx.node_account_id.to_proto()
 
-
 @pytest.mark.parametrize("bad_token", [None, TokenId(0, 0, 0)])
 def test_build_transaction_body_without_valid_token_id_raises(bad_token):
     """