Fix error in Squeezebox DHCP discovery flow (#50771)

* Map data from dhcp to squeezebox discovery flow

* Add tests for squeezebox dhcp discovery

homeassistant/components/squeezebox/config_flow.py

@@ -6,6 +6,7 @@ from pysqueezebox import Server, async_discover
 import voluptuous as vol
 
 from homeassistant import config_entries
+from homeassistant.components.dhcp import IP_ADDRESS, MAC_ADDRESS
 from homeassistant.const import (
     CONF_HOST,
     CONF_PASSWORD,
@@ -172,10 +173,21 @@ class SqueezeboxConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
             await self.async_set_unique_id(discovery_info.pop("uuid"))
             self._abort_if_unique_id_configured()
         else:
-            # attempt to connect to server and determine uuid. will fail if password required
+            # attempt to connect to server and determine uuid. will fail if
+            # password required
+
+            if CONF_HOST not in discovery_info and IP_ADDRESS in discovery_info:
+                discovery_info[CONF_HOST] = discovery_info[IP_ADDRESS]
+
+            if CONF_PORT not in discovery_info:
+                discovery_info[CONF_PORT] = DEFAULT_PORT
+
             error = await self._validate_input(discovery_info)
             if error:
-                await self._async_handle_discovery_without_unique_id()
+                if MAC_ADDRESS in discovery_info:
+                    await self.async_set_unique_id(discovery_info[MAC_ADDRESS])
+                else:
+                    await self._async_handle_discovery_without_unique_id()
 
         # update schema with suggested values from discovery
         self.data_schema = _base_schema(discovery_info)

tests/components/squeezebox/test_config_flow.py

@@ -4,6 +4,7 @@ from unittest.mock import patch
 from pysqueezebox import Server
 
 from homeassistant import config_entries
+from homeassistant.components.dhcp import HOSTNAME, IP_ADDRESS, MAC_ADDRESS
 from homeassistant.components.squeezebox.const import DOMAIN
 from homeassistant.const import (
     CONF_HOST,
@@ -196,6 +197,41 @@ async def test_discovery_no_uuid(hass):
         assert result["step_id"] == "edit"
 
 
+async def test_dhcp_discovery(hass):
+    """Test we can process discovery from dhcp."""
+    with patch(
+        "pysqueezebox.Server.async_query",
+        return_value={"uuid": UUID},
+    ):
+        result = await hass.config_entries.flow.async_init(
+            DOMAIN,
+            context={"source": config_entries.SOURCE_DHCP},
+            data={
+                IP_ADDRESS: "1.1.1.1",
+                MAC_ADDRESS: "AA:BB:CC:DD:EE:FF",
+                HOSTNAME: "any",
+            },
+        )
+        assert result["type"] == RESULT_TYPE_FORM
+        assert result["step_id"] == "edit"
+
+
+async def test_dhcp_discovery_no_connection(hass):
+    """Test we can process discovery from dhcp without connecting to squeezebox server."""
+    with patch("pysqueezebox.Server.async_query", new=patch_async_query_unauthorized):
+        result = await hass.config_entries.flow.async_init(
+            DOMAIN,
+            context={"source": config_entries.SOURCE_DHCP},
+            data={
+                IP_ADDRESS: "1.1.1.1",
+                MAC_ADDRESS: "AA:BB:CC:DD:EE:FF",
+                HOSTNAME: "any",
+            },
+        )
+        assert result["type"] == RESULT_TYPE_FORM
+        assert result["step_id"] == "edit"
+
+
 async def test_import(hass):
     """Test handling of configuration imported."""
     with patch("pysqueezebox.Server.async_query", return_value={"uuid": UUID},), patch(