Add the ability to reload ping platforms from yaml (#39344)

homeassistant/components/ping/__init__.py

 """The ping component."""
+
+DOMAIN = "ping"
+PLATFORMS = ["binary_sensor"]

homeassistant/components/ping/binary_sensor.py

@@ -12,7 +12,9 @@ import voluptuous as vol
 from homeassistant.components.binary_sensor import PLATFORM_SCHEMA, BinarySensorEntity
 from homeassistant.const import CONF_HOST, CONF_NAME
 import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.reload import setup_reload_service
 
+from . import DOMAIN, PLATFORMS
 from .const import PING_TIMEOUT
 
 _LOGGER = logging.getLogger(__name__)
@@ -56,6 +58,8 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
 
 def setup_platform(hass, config, add_entities, discovery_info=None) -> None:
     """Set up the Ping Binary sensor."""
+    setup_reload_service(hass, DOMAIN, PLATFORMS)
+
     host = config[CONF_HOST]
     count = config[CONF_PING_COUNT]
     name = config.get(CONF_NAME, f"{DEFAULT_NAME} {host}")

homeassistant/components/ping/services.yaml

+reload:
+  description: Reload all ping entities.

requirements_test_all.txt

@@ -391,6 +391,9 @@ huawei-lte-api==1.4.12
 # homeassistant.components.iaqualink
 iaqualink==0.3.4
 
+# homeassistant.components.ping
+icmplib==1.1.1
+
 # homeassistant.components.influxdb
 influxdb-client==1.8.0
 

tests/components/ping/__init__.py

+"""Tests for ping component."""

tests/components/ping/test_binary_sensor.py

+"""The test for the ping binary_sensor platform."""
+from os import path
+
+from homeassistant import config as hass_config, setup
+from homeassistant.components.ping import DOMAIN
+from homeassistant.const import SERVICE_RELOAD
+
+from tests.async_mock import patch
+
+
+async def test_reload(hass):
+    """Verify we can reload trend sensors."""
+
+    await setup.async_setup_component(
+        hass,
+        "binary_sensor",
+        {
+            "binary_sensor": {
+                "platform": "ping",
+                "name": "test",
+                "host": "127.0.0.1",
+                "count": 1,
+            }
+        },
+    )
+    await hass.async_block_till_done()
+
+    assert len(hass.states.async_all()) == 1
+
+    assert hass.states.get("binary_sensor.test")
+
+    yaml_path = path.join(
+        _get_fixtures_base_path(),
+        "fixtures",
+        "ping/configuration.yaml",
+    )
+    with patch.object(hass_config, "YAML_CONFIG_FILE", yaml_path):
+        await hass.services.async_call(
+            DOMAIN,
+            SERVICE_RELOAD,
+            {},
+            blocking=True,
+        )
+        await hass.async_block_till_done()
+
+    assert len(hass.states.async_all()) == 1
+
+    assert hass.states.get("binary_sensor.test") is None
+    assert hass.states.get("binary_sensor.test2")
+
+
+def _get_fixtures_base_path():
+    return path.dirname(path.dirname(path.dirname(__file__)))

tests/fixtures/ping/configuration.yaml

+binary_sensor:
+  - platform: ping
+    name: test2
+    host: 127.0.0.1
+    count: 1