python-zeroconf · bdraco · May 15, 2026 · May 15, 2026 · May 15, 2026 · May 15, 2026
diff --git a/CLAUDE.md b/CLAUDE.md
@@ -171,7 +171,7 @@ accelerated projects.
   `_ANSWER_STRATEGY_POINTER = 1` in `query_handler.py` as a C int
   assignment; the Python module dict never gets the binding.
   `from zeroconf._handlers.query_handler import
-  _ANSWER_STRATEGY_POINTER` succeeds in pure-Python but raises
+_ANSWER_STRATEGY_POINTER` succeeds in pure-Python but raises
   `ImportError` under Cython. If you need the value visible from
   Python (e.g. a test wants to assert on it), define both names —
   a public `ANSWER_STRATEGY_POINTER = 1` Python binding plus a

diff --git a/tests/conftest.py b/tests/conftest.py
@@ -3,6 +3,7 @@
 from __future__ import annotations
 
 import threading
+from collections.abc import Generator
 from unittest.mock import patch
 
 import pytest
@@ -40,3 +41,21 @@ def disable_duplicate_packet_suppression():
     """
     with patch.object(const, "_DUPLICATE_PACKET_SUPPRESSION_INTERVAL", 0):
         yield
+
+
+@pytest.fixture
+def quick_timing() -> Generator[None]:
+    """Shorten the probe/announce/goodbye intervals for tests on loopback.
+
+    The production values (_CHECK_TIME=500ms, _REGISTER_TIME=225ms,
+    _UNREGISTER_TIME=125ms) exist for RFC 6762 interop on real
+    networks. Tests on 127.0.0.1 do not need them and pay 1-2s per
+    register/unregister cycle without this fixture. Opt in by adding
+    `quick_timing` to a test's argument list.
+    """
+    with (
+        patch.object(_core, "_CHECK_TIME", 10),
+        patch.object(_core, "_REGISTER_TIME", 10),
+        patch.object(_core, "_UNREGISTER_TIME", 10),
+    ):
+        yield
diff --git a/tests/test_asyncio.py b/tests/test_asyncio.py
@@ -260,7 +260,7 @@ def update_service(self, zeroconf: Zeroconf, type: str, name: str) -> None:
 
 
 @pytest.mark.asyncio
-async def test_async_service_registration_same_server_different_ports() -> None:
+async def test_async_service_registration_same_server_different_ports(quick_timing: None) -> None:
     """Test registering services with the same server with different srv records."""
     aiozc = AsyncZeroconf(interfaces=["127.0.0.1"])
     type_ = "_test1-srvc-type._tcp.local."
@@ -327,7 +327,7 @@ def update_service(self, zeroconf: Zeroconf, type: str, name: str) -> None:
 
 
 @pytest.mark.asyncio
-async def test_async_service_registration_same_server_same_ports() -> None:
+async def test_async_service_registration_same_server_same_ports(quick_timing: None) -> None:
     """Test registering services with the same server with the exact same srv record."""
     aiozc = AsyncZeroconf(interfaces=["127.0.0.1"])
     type_ = "_test1-srvc-type._tcp.local."
@@ -468,7 +468,7 @@ async def test_async_service_registration_name_does_not_match_type() -> None:
 
 
 @pytest.mark.asyncio
-async def test_async_service_registration_name_strict_check() -> None:
+async def test_async_service_registration_name_strict_check(quick_timing: None) -> None:
     """Test registering services throws when the name does not comply."""
     zc = Zeroconf(interfaces=["127.0.0.1"])
     aiozc = AsyncZeroconf(interfaces=["127.0.0.1"])
@@ -824,7 +824,7 @@ class MyServiceListener(ServiceListener):
 
 
 @pytest.mark.asyncio
-async def test_async_unregister_all_services() -> None:
+async def test_async_unregister_all_services(quick_timing: None) -> None:
     """Test unregistering all services."""
     aiozc = AsyncZeroconf(interfaces=["127.0.0.1"])
     type_ = "_test1-srvc-type._tcp.local."
@@ -870,8 +870,8 @@ async def test_async_unregister_all_services() -> None:
     _clear_cache(aiozc.zeroconf)
 
     tasks = []
-    tasks.append(aiozc.async_get_service_info(type_, registration_name))
-    tasks.append(aiozc.async_get_service_info(type_, registration_name2))
+    tasks.append(aiozc.async_get_service_info(type_, registration_name, timeout=200))
+    tasks.append(aiozc.async_get_service_info(type_, registration_name2, timeout=200))
     results = await asyncio.gather(*tasks)
     assert results[0] is None
     assert results[1] is None
@@ -883,7 +883,7 @@ async def test_async_unregister_all_services() -> None:
 
 
 @pytest.mark.asyncio
-async def test_async_zeroconf_service_types():
+async def test_async_zeroconf_service_types(quick_timing: None) -> None:
     type_ = "_test-srvc-type._tcp.local."
     name = "xxxyyy"
     registration_name = f"{name}.{type_}"

diff --git a/tests/test_core.py b/tests/test_core.py
@@ -721,7 +721,7 @@ async def test_multiple_sync_instances_stared_from_async_close():
     await asyncio.sleep(0)
 
 
-def test_shutdown_while_register_in_process():
+def test_shutdown_while_register_in_process(quick_timing: None) -> None:
     """Test we can shutdown while registering a service in another thread."""
 
     # instantiate a zeroconf instance