Another try to get rid of Shelly flaky test (#43821)

tests/components/shelly/conftest.py

@@ -0,0 +1,11 @@
+"""Test configuration for Shelly."""
+import pytest
+
+from tests.async_mock import patch
+
+
+@pytest.fixture(autouse=True)
+def mock_coap():
+    """Mock out coap."""
+    with patch("homeassistant.components.shelly.get_coap_context"):
+        yield

tests/components/shelly/test_config_flow.py

@@ -36,7 +36,7 @@ async def test_form(hass):
     assert result["type"] == "form"
     assert result["errors"] == {}
 
-    with patch("aioshelly.COAP", return_value=Mock(initialize=AsyncMock())), patch(
+    with patch(
         "aioshelly.get_info",
         return_value={"mac": "test-mac", "type": "SHSW-1", "auth": False},
     ), patch(