Raise vol.Invalid for invalid mqtt device_tracker config (#101399)

Raise vol.Invalid for invalid mqtt device_tracker

homeassistant/components/mqtt/device_tracker.py

@@ -52,7 +52,7 @@ DEFAULT_SOURCE_TYPE = SourceType.GPS
 def valid_config(config: ConfigType) -> ConfigType:
     """Check if there is a state topic or json_attributes_topic."""
     if CONF_STATE_TOPIC not in config and CONF_JSON_ATTRS_TOPIC not in config:
-        raise vol.MultipleInvalid(
+        raise vol.Invalid(
             f"Invalid device tracker config, missing {CONF_STATE_TOPIC} or {CONF_JSON_ATTRS_TOPIC}, got: {config}"
         )
     return config

tests/components/mqtt/test_discovery.py

@@ -122,6 +122,28 @@ async def test_invalid_json(
         assert not mock_dispatcher_send.called
 
 
+@pytest.mark.no_fail_on_log_exception
+@patch("homeassistant.components.mqtt.PLATFORMS", [Platform.BINARY_SENSOR])
+async def test_discovery_schema_error(
+    hass: HomeAssistant,
+    mqtt_mock_entry: MqttMockHAClientGenerator,
+    caplog: pytest.LogCaptureFixture,
+) -> None:
+    """Test unexpected error JSON config."""
+    with patch(
+        "homeassistant.components.mqtt.binary_sensor.DISCOVERY_SCHEMA",
+        side_effect=AttributeError("Attribute abc not found"),
+    ):
+        await mqtt_mock_entry()
+        async_fire_mqtt_message(
+            hass,
+            "homeassistant/binary_sensor/bla/config",
+            '{"name": "Beer", "state_topic": "ok"}',
+        )
+        await hass.async_block_till_done()
+        assert "AttributeError: Attribute abc not found" in caplog.text
+
+
 async def test_only_valid_components(
     hass: HomeAssistant,
     mqtt_mock_entry: MqttMockHAClientGenerator,