Improve onewire options flow tests (#135109)

homeassistant/components/onewire/quality_scale.yaml

@@ -7,10 +7,7 @@ rules:
   unique-config-entry:
     status: done
     comment: unique ID is not available, but duplicates are prevented based on host/port
-  config-flow-test-coverage:
-    status: todo
-    comment: >
-      Let's have test_user_options_empty_selection end in CREATE_ENTRY
+  config-flow-test-coverage: done
   runtime-data: done
   test-before-setup: done
   appropriate-polling: done

tests/components/onewire/test_config_flow.py

@@ -215,7 +215,7 @@ async def test_user_options_clear(
 
 
 @pytest.mark.usefixtures("filled_device_registry")
-async def test_user_options_empty_selection(
+async def test_user_options_empty_selection_recovery(
     hass: HomeAssistant, config_entry: MockConfigEntry
 ) -> None:
     """Test leaving the selection of devices empty."""
@@ -229,7 +229,7 @@ async def test_user_options_empty_selection(
         "28.222222222223": False,
     }
 
-    # Verify that an empty selection does not modify the options
+    # Verify that an empty selection shows the form again
     result = await hass.config_entries.options.async_configure(
         result["flow_id"],
         user_input={INPUT_ENTRY_DEVICE_SELECTION: []},
@@ -238,6 +238,25 @@ async def test_user_options_empty_selection(
     assert result["step_id"] == "device_selection"
     assert result["errors"] == {"base": "device_not_selected"}
 
+    # Verify that a single selected device to configure comes back as a form with the device to configure
+    result = await hass.config_entries.options.async_configure(
+        result["flow_id"],
+        user_input={INPUT_ENTRY_DEVICE_SELECTION: ["28.111111111111"]},
+    )
+    assert result["type"] is FlowResultType.FORM
+    assert result["description_placeholders"]["sensor_id"] == "28.111111111111"
+
+    # Verify that the setting for the device comes back as default when no input is given
+    result = await hass.config_entries.options.async_configure(
+        result["flow_id"],
+        user_input={},
+    )
+    assert result["type"] is FlowResultType.CREATE_ENTRY
+    assert (
+        result["data"]["device_options"]["28.111111111111"]["precision"]
+        == "temperature"
+    )
+
 
 @pytest.mark.usefixtures("filled_device_registry")
 async def test_user_options_set_single(