Add system health check to IPMA (#43762)

homeassistant/components/ipma/strings.json

@@ -13,5 +13,10 @@
       }
     },
     "error": { "name_exists": "Name already exists" }
+  },
+  "system_health": {
+     "info": {
+       "api_endpoint_reachable": "IPMA API endpoint reachable"
+     }
   }
 }

homeassistant/components/ipma/system_health.py

@@ -0,0 +1,22 @@
+"""Provide info to system health."""
+from homeassistant.components import system_health
+from homeassistant.core import HomeAssistant, callback
+
+IPMA_API_URL = "http://api.ipma.pt"
+
+
+@callback
+def async_register(
+    hass: HomeAssistant, register: system_health.SystemHealthRegistration
+) -> None:
+    """Register system health callbacks."""
+    register.async_register_info(system_health_info)
+
+
+async def system_health_info(hass):
+    """Get info for the info page."""
+    return {
+        "api_endpoint_reachable": system_health.async_check_can_reach_url(
+            hass, IPMA_API_URL
+        )
+    }

tests/components/ipma/test_system_health.py

@@ -0,0 +1,23 @@
+"""Test ipma system health."""
+import asyncio
+
+from homeassistant.components.ipma.system_health import IPMA_API_URL
+from homeassistant.setup import async_setup_component
+
+from tests.common import get_system_health_info
+
+
+async def test_ipma_system_health(hass, aioclient_mock):
+    """Test ipma system health."""
+    aioclient_mock.get(IPMA_API_URL, json={"result": "ok", "data": {}})
+
+    hass.config.components.add("ipma")
+    assert await async_setup_component(hass, "system_health", {})
+
+    info = await get_system_health_info(hass, "ipma")
+
+    for key, val in info.items():
+        if asyncio.iscoroutine(val):
+            info[key] = await val
+
+    assert info == {"api_endpoint_reachable": "ok"}