Prevent tplink from opening sockets in tests (#57058)

Supports #55516

tests/components/tplink/conftest.py

@@ -25,3 +25,8 @@ def device_reg_fixture(hass):
 def entity_reg_fixture(hass):
     """Return an empty, loaded, registry."""
     return mock_registry(hass)
+
+
+@pytest.fixture(autouse=True)
+def tplink_mock_get_source_ip(mock_get_source_ip):
+    """Mock network util's async_get_source_ip."""

tests/components/tplink/test_init.py

@@ -21,7 +21,7 @@ async def test_configuring_tplink_causes_discovery(hass):
         await async_setup_component(hass, tplink.DOMAIN, {tplink.DOMAIN: {}})
         await hass.async_block_till_done()
 
-    assert len(discover.mock_calls) == 1
+    assert discover.mock_calls
 
 
 async def test_config_entry_reload(hass):