Missing float data (#262)

* default bed and extruder temp

* add test

custom_components/moonraker/sensor.py

@@ -81,7 +81,7 @@ class MoonrakerSensorDescription(SensorEntityDescription):
         key="extruder_temp",
         name="Extruder Temperature",
         value_fn=lambda sensor: float(
-            sensor.coordinator.data["status"]["extruder"]["temperature"]
+            sensor.coordinator.data["status"]["extruder"]["temperature"] or 0.0
         ),
         subscriptions=[("extruder", "temperature")],
         icon="mdi:printer-3d-nozzle-heat",
@@ -91,7 +91,7 @@ class MoonrakerSensorDescription(SensorEntityDescription):
         key="extruder_target",
         name="Extruder Target",
         value_fn=lambda sensor: float(
-            sensor.coordinator.data["status"]["extruder"]["target"]
+            sensor.coordinator.data["status"]["extruder"]["target"] or 0.0
         ),
         subscriptions=[("extruder", "target")],
         icon="mdi:printer-3d-nozzle-heat",
@@ -101,7 +101,7 @@ class MoonrakerSensorDescription(SensorEntityDescription):
         key="bed_target",
         name="Bed Target",
         value_fn=lambda sensor: float(
-            sensor.coordinator.data["status"]["heater_bed"]["target"]
+            sensor.coordinator.data["status"]["heater_bed"]["target"] or 0.0
         ),
         subscriptions=[("heater_bed", "target")],
         icon="mdi:radiator",
@@ -111,7 +111,7 @@ class MoonrakerSensorDescription(SensorEntityDescription):
         key="bed_temp",
         name="Bed Temperature",
         value_fn=lambda sensor: float(
-            sensor.coordinator.data["status"]["heater_bed"]["temperature"]
+            sensor.coordinator.data["status"]["heater_bed"]["temperature"] or 0.0
         ),
         subscriptions=[("heater_bed", "temperature")],
         icon="mdi:radiator",

tests/test_sensor.py

@@ -209,6 +209,18 @@ async def test_opt_sensor_missing(hass, get_data, get_printer_objects_list):
     assert state is None
 
 
+async def test_missing_heater_bed(hass, get_data):
+    """test."""
+    get_data["status"]["heater_bed"]["target"] = None
+
+    config_entry = MockConfigEntry(domain=DOMAIN, data=MOCK_CONFIG, entry_id="test")
+    config_entry.add_to_hass(hass)
+    assert await async_setup_entry(hass, config_entry)
+    await hass.async_block_till_done()
+
+    assert hass.states.get("sensor.mainsail_bed_target").state == "0.0"
+
+
 async def test_eta(hass):
     """test."""
     config_entry = MockConfigEntry(domain=DOMAIN, data=MOCK_CONFIG, entry_id="test")