fix: align ResponseCode enum with response_code.proto

Signed-off-by: Mounil Kanakhara <mounilkankhara@gmail.com>

Author: Mounil2005

src/hiero_sdk_python/response_code.py

@@ -117,6 +117,7 @@ class ResponseCode(IntEnum):
     EXPIRATION_REDUCTION_NOT_ALLOWED = 110
     MAX_GAS_LIMIT_EXCEEDED = 111
     MAX_FILE_SIZE_EXCEEDED = 112
+    RECEIVER_SIG_REQUIRED = 113
 
     INVALID_TOPIC_ID = 150
     INVALID_ADMIN_KEY = 155
@@ -307,6 +308,8 @@ class ResponseCode(IntEnum):
     INVALID_NODE_ACCOUNT_ID = 341
     INVALID_NODE_DESCRIPTION = 342
     INVALID_SERVICE_ENDPOINT = 343
+    INVALID_GOSSIP_CA_CERTIFICATE = 344
+    # Deprecated alias, misspelled: use INVALID_GOSSIP_CA_CERTIFICATE instead.
     INVALID_GOSSIP_CAE_CERTIFICATE = 344
     INVALID_GRPC_CERTIFICATE = 345
     INVALID_MAX_AUTO_ASSOCIATIONS = 346
@@ -319,19 +322,23 @@ class ResponseCode(IntEnum):
     TOKEN_REFERENCE_REPEATED = 353
     INVALID_OWNER_ID = 354
     TOKEN_REFERENCE_LIST_SIZE_LIMIT_EXCEEDED = 355
-    INVALID_IPV4_ADDRESS = 356
-    SERVICE_ENDPOINTS_EXCEEDED_LIMIT = 357
+    SERVICE_ENDPOINTS_EXCEEDED_LIMIT = 356
+    INVALID_IPV4_ADDRESS = 357
     EMPTY_TOKEN_REFERENCE_LIST = 358
     UPDATE_NODE_ACCOUNT_NOT_ALLOWED = 359
     TOKEN_HAS_NO_METADATA_OR_SUPPLY_KEY = 360
     EMPTY_PENDING_AIRDROP_ID_LIST = 361
     PENDING_AIRDROP_ID_REPEATED = 362
+    PENDING_AIRDROP_ID_LIST_TOO_LONG = 363
+    # Deprecated alias: use PENDING_AIRDROP_ID_LIST_TOO_LONG instead.
     MAX_PENDING_AIRDROP_ID_EXCEEDED = 363
     PENDING_NFT_AIRDROP_ALREADY_EXISTS = 364
     ACCOUNT_HAS_PENDING_AIRDROPS = 365
     THROTTLED_AT_CONSENSUS = 366
     INVALID_PENDING_AIRDROP_ID = 367
     TOKEN_AIRDROP_WITH_FALLBACK_ROYALTY = 368
+    INVALID_TOKEN_IN_PENDING_AIRDROP = 369
+    # Deprecated alias: use INVALID_TOKEN_IN_PENDING_AIRDROP instead.
     INVALID_TOKEN_ID_PENDING_AIRDROP = 369
     SCHEDULE_EXPIRY_IS_BUSY = 370
     INVALID_GRPC_CERTIFICATE_HASH = 371

tests/unit/response_code_test.py

@@ -0,0 +1,55 @@
+from __future__ import annotations
+
+import pytest
+
+from hiero_sdk_python.response_code import ResponseCode
+
+
+pytestmark = pytest.mark.unit
+
+
+@pytest.mark.parametrize(
+    ("code", "expected_name"),
+    [
+        # Previously swapped with each other (356 <-> 357).
+        (356, "SERVICE_ENDPOINTS_EXCEEDED_LIMIT"),
+        (357, "INVALID_IPV4_ADDRESS"),
+        # Previously carried a misspelled or non-canonical name.
+        (344, "INVALID_GOSSIP_CA_CERTIFICATE"),
+        (363, "PENDING_AIRDROP_ID_LIST_TOO_LONG"),
+        (369, "INVALID_TOKEN_IN_PENDING_AIRDROP"),
+        # Previously missing entirely, so the network's code surfaced as UNKNOWN_CODE_113.
+        (113, "RECEIVER_SIG_REQUIRED"),
+    ],
+)
+def test_code_resolves_to_canonical_proto_name(code: int, expected_name: str) -> None:
+    """Each corrected code resolves to the name used in response_code.proto."""
+    member = ResponseCode(code)
+    assert member.name == expected_name
+    assert member is ResponseCode[expected_name]
+
+
+@pytest.mark.parametrize(
+    ("deprecated_name", "canonical_name", "value"),
+    [
+        ("INVALID_GOSSIP_CAE_CERTIFICATE", "INVALID_GOSSIP_CA_CERTIFICATE", 344),
+        ("MAX_PENDING_AIRDROP_ID_EXCEEDED", "PENDING_AIRDROP_ID_LIST_TOO_LONG", 363),
+        ("INVALID_TOKEN_ID_PENDING_AIRDROP", "INVALID_TOKEN_IN_PENDING_AIRDROP", 369),
+    ],
+)
+def test_renamed_codes_keep_working_deprecated_alias(deprecated_name: str, canonical_name: str, value: int) -> None:
+    """The old names still resolve, so existing user code keeps working."""
+    alias = getattr(ResponseCode, deprecated_name)
+    assert alias == value
+    assert alias is getattr(ResponseCode, canonical_name)
+    # An alias is reachable by name but is not a member in its own right.
+    assert deprecated_name in ResponseCode.__members__
+    assert deprecated_name not in {member.name for member in ResponseCode}
+
+
+def test_unknown_code_still_falls_back() -> None:
+    """The _missing_ hook is unaffected by the corrected members."""
+    unknown = ResponseCode(9999)
+    assert unknown.name == "UNKNOWN_CODE_9999"
+    assert unknown.is_unknown
+    assert not ResponseCode.SUCCESS.is_unknown