Add MDNS and LLMNR status to API (#3545)

* Add mdns and llmnr status to API

* Add broadcast info to host/info and move constants

* Fix new test and isort error

tests/api/test_host.py

@@ -7,18 +7,110 @@ from supervisor.coresys import CoreSys
 # pylint: disable=protected-access
 
 
+@pytest.fixture(name="coresys_disk_info")
+async def fixture_coresys_disk_info(coresys: CoreSys) -> CoreSys:
+    """Mock basic disk information for host APIs."""
+    coresys.hardware.disk.get_disk_life_time = lambda _: 0
+    coresys.hardware.disk.get_disk_free_space = lambda _: 5000
+    coresys.hardware.disk.get_disk_total_space = lambda _: 50000
+    coresys.hardware.disk.get_disk_used_space = lambda _: 45000
+
+    yield coresys
+
+
 @pytest.mark.asyncio
-async def test_api_host_info(api_client, tmp_path, coresys: CoreSys):
+async def test_api_host_info(api_client, coresys_disk_info: CoreSys):
     """Test host info api."""
+    coresys = coresys_disk_info
+
     await coresys.dbus.agent.connect()
     await coresys.dbus.agent.update()
 
-    coresys.hardware.disk.get_disk_life_time = lambda x: 0
-    coresys.hardware.disk.get_disk_free_space = lambda x: 5000
-    coresys.hardware.disk.get_disk_total_space = lambda x: 50000
-    coresys.hardware.disk.get_disk_used_space = lambda x: 45000
-
     resp = await api_client.get("/host/info")
     result = await resp.json()
 
     assert result["data"]["apparmor_version"] == "2.13.2"
+
+
+async def test_api_host_features(api_client, coresys_disk_info: CoreSys):
+    """Test host info features."""
+    coresys = coresys_disk_info
+
+    coresys.host.sys_dbus.systemd.is_connected = False
+    coresys.host.sys_dbus.network.is_connected = False
+    coresys.host.sys_dbus.hostname.is_connected = False
+    coresys.host.sys_dbus.timedate.is_connected = False
+    coresys.host.sys_dbus.agent.is_connected = False
+    coresys.host.sys_dbus.resolved.is_connected = False
+
+    resp = await api_client.get("/host/info")
+    result = await resp.json()
+    assert "reboot" not in result["data"]["features"]
+    assert "services" not in result["data"]["features"]
+    assert "shutdown" not in result["data"]["features"]
+    assert "network" not in result["data"]["features"]
+    assert "hostname" not in result["data"]["features"]
+    assert "timedate" not in result["data"]["features"]
+    assert "os_agent" not in result["data"]["features"]
+    assert "resolved" not in result["data"]["features"]
+
+    coresys.host.sys_dbus.systemd.is_connected = True
+    coresys.host.supported_features.cache_clear()
+    resp = await api_client.get("/host/info")
+    result = await resp.json()
+    assert "reboot" in result["data"]["features"]
+    assert "services" in result["data"]["features"]
+    assert "shutdown" in result["data"]["features"]
+
+    coresys.host.sys_dbus.network.is_connected = True
+    coresys.host.supported_features.cache_clear()
+    resp = await api_client.get("/host/info")
+    result = await resp.json()
+    assert "network" in result["data"]["features"]
+
+    coresys.host.sys_dbus.hostname.is_connected = True
+    coresys.host.supported_features.cache_clear()
+    resp = await api_client.get("/host/info")
+    result = await resp.json()
+    assert "hostname" in result["data"]["features"]
+
+    coresys.host.sys_dbus.timedate.is_connected = True
+    coresys.host.supported_features.cache_clear()
+    resp = await api_client.get("/host/info")
+    result = await resp.json()
+    assert "timedate" in result["data"]["features"]
+
+    coresys.host.sys_dbus.agent.is_connected = True
+    coresys.host.supported_features.cache_clear()
+    resp = await api_client.get("/host/info")
+    result = await resp.json()
+    assert "os_agent" in result["data"]["features"]
+
+    coresys.host.sys_dbus.resolved.is_connected = True
+    coresys.host.supported_features.cache_clear()
+    resp = await api_client.get("/host/info")
+    result = await resp.json()
+    assert "resolved" in result["data"]["features"]
+
+
+async def test_api_llmnr_mdns_info(api_client, coresys_disk_info: CoreSys):
+    """Test llmnr and mdns details in info."""
+    coresys = coresys_disk_info
+
+    coresys.host.sys_dbus.resolved.is_connected = False
+
+    resp = await api_client.get("/host/info")
+    result = await resp.json()
+    assert result["data"]["broadcast_llmnr"] is None
+    assert result["data"]["broadcast_mdns"] is None
+    assert result["data"]["llmnr_hostname"] is None
+
+    coresys.host.sys_dbus.resolved.is_connected = True
+    await coresys.dbus.resolved.connect()
+    await coresys.dbus.resolved.update()
+
+    resp = await api_client.get("/host/info")
+    result = await resp.json()
+    assert result["data"]["broadcast_llmnr"] is True
+    assert result["data"]["broadcast_mdns"] is False
+    assert result["data"]["llmnr_hostname"] == "homeassistant"