Reduce missed coverage in zwave_js (#79571)

* Reduce missed coverage in zwave_js.climate and cover

* Add switch platform coverage

* Add select platform

* Add lock platform

* Remove one line of coverage from number platform

* update docstring

tests/components/zwave_js/test_switch.py

@@ -1,11 +1,14 @@
 """Test the Z-Wave JS switch platform."""
 
+from zwave_js_server.const import CURRENT_VALUE_PROPERTY, CommandClass
 from zwave_js_server.event import Event
+from zwave_js_server.model.node import Node
 
 from homeassistant.components.switch import DOMAIN, SERVICE_TURN_OFF, SERVICE_TURN_ON
-from homeassistant.const import STATE_OFF, STATE_ON
+from homeassistant.components.zwave_js.helpers import ZwaveValueMatcher
+from homeassistant.const import STATE_OFF, STATE_ON, STATE_UNKNOWN
 
-from .common import SWITCH_ENTITY
+from .common import SWITCH_ENTITY, replace_value_of_zwave_value
 
 
 async def test_switch(hass, hank_binary_switch, integration, client):
@@ -14,7 +17,7 @@ async def test_switch(hass, hank_binary_switch, integration, client):
     node = hank_binary_switch
 
     assert state
-    assert state.state == "off"
+    assert state.state == STATE_OFF
 
     # Test turning on
     await hass.services.async_call(
@@ -178,3 +181,25 @@ async def test_barrier_signaling_switch(hass, gdc_zw062, integration, client):
 
     state = hass.states.get(entity)
     assert state.state == STATE_ON
+
+
+async def test_switch_no_value(hass, hank_binary_switch_state, integration, client):
+    """Test the switch where primary value value is None."""
+    node_state = replace_value_of_zwave_value(
+        hank_binary_switch_state,
+        [
+            ZwaveValueMatcher(
+                property_=CURRENT_VALUE_PROPERTY,
+                command_class=CommandClass.SWITCH_BINARY,
+            )
+        ],
+        None,
+    )
+    node = Node(client, node_state)
+    client.driver.controller.emit("node added", {"node": node})
+    await hass.async_block_till_done()
+
+    state = hass.states.get(SWITCH_ENTITY)
+
+    assert state
+    assert state.state == STATE_UNKNOWN