Add tests to emoncms (home-assistant#122547)

* Add tests to emoncms

* Reduce snapshot size

* Reduce snapshot size

* run hassfest to update CODEOWNERS file

* Update requirements_test_all.txt

* Update tests/components/emoncms/test_sensor.py

Co-authored-by: Joost Lekkerkerker <joostlek@outlook.com>

* Dont use snapshot when testing state change

---------

Co-authored-by: Joost Lekkerkerker <joostlek@outlook.com>

CODEOWNERS

@@ -384,6 +384,7 @@ build.json @home-assistant/supervisor
 /tests/components/elvia/ @ludeeus
 /homeassistant/components/emby/ @mezz64
 /homeassistant/components/emoncms/ @borpin @alexandrecuer
+/tests/components/emoncms/ @borpin @alexandrecuer
 /homeassistant/components/emonitor/ @bdraco
 /tests/components/emonitor/ @bdraco
 /homeassistant/components/emulated_hue/ @bdraco @Tho85

homeassistant/components/emoncms/const.py

@@ -6,6 +6,7 @@
 CONF_ONLY_INCLUDE_FEEDID = "include_only_feed_id"
 CONF_MESSAGE = "message"
 CONF_SUCCESS = "success"
+DOMAIN = "emoncms"
 
 
 LOGGER = logging.getLogger(__package__)

requirements_test_all.txt

@@ -1453,6 +1453,9 @@ pyefergy==22.5.0
 # homeassistant.components.energenie_power_sockets
 pyegps==0.2.5
 
+# homeassistant.components.emoncms
+pyemoncms==0.0.7
+
 # homeassistant.components.enphase_envoy
 pyenphase==1.20.6
 

tests/components/emoncms/__init__.py

@@ -0,0 +1 @@
+"""Tests for the emoncms component."""

tests/components/emoncms/conftest.py

@@ -0,0 +1,47 @@
+"""Fixtures for emoncms integration tests."""
+
+from collections.abc import AsyncGenerator
+from unittest.mock import AsyncMock, patch
+
+import pytest
+
+UNITS = ["kWh", "Wh", "W", "V", "A", "VA", "°C", "°F", "K", "Hz", "hPa", ""]
+
+
+def get_feed(
+    number: int, unit: str = "W", value: int = 18.04, timestamp: int = 1665509570
+):
+    """Generate feed details."""
+    return {
+        "id": str(number),
+        "userid": "1",
+        "name": f"parameter {number}",
+        "tag": "tag",
+        "size": "35809224",
+        "unit": unit,
+        "time": timestamp,
+        "value": value,
+    }
+
+
+FEEDS = [get_feed(i + 1, unit=unit) for i, unit in enumerate(UNITS)]
+
+
+EMONCMS_FAILURE = {"success": False, "message": "failure"}
+
+
+@pytest.fixture
+async def emoncms_client() -> AsyncGenerator[AsyncMock]:
+    """Mock pyemoncms success response."""
+    with (
+        patch(
+            "homeassistant.components.emoncms.sensor.EmoncmsClient", autospec=True
+        ) as mock_client,
+        patch(
+            "homeassistant.components.emoncms.coordinator.EmoncmsClient",
+            new=mock_client,
+        ),
+    ):
+        client = mock_client.return_value
+        client.async_request.return_value = {"success": True, "message": FEEDS}
+        yield client

tests/components/emoncms/snapshots/test_sensor.ambr

@@ -0,0 +1,24 @@
+# serializer version: 1
+# name: test_coordinator_update[sensor.emoncms_parameter_1]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'FeedId': '1',
+      'FeedName': 'parameter 1',
+      'LastUpdated': 1665509570,
+      'LastUpdatedStr': '2022-10-11T10:32:50-07:00',
+      'Size': '35809224',
+      'Tag': 'tag',
+      'UserId': '1',
+      'device_class': 'temperature',
+      'friendly_name': 'EmonCMS parameter 1',
+      'state_class': <SensorStateClass.MEASUREMENT: 'measurement'>,
+      'unit_of_measurement': <UnitOfTemperature.CELSIUS: '°C'>,
+    }),
+    'context': <ANY>,
+    'entity_id': 'sensor.emoncms_parameter_1',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': '18.04',
+  })
+# ---

tests/components/emoncms/test_sensor.py

@@ -0,0 +1,90 @@
+"""Test emoncms sensor."""
+
+from typing import Any
+from unittest.mock import AsyncMock
+
+from freezegun.api import FrozenDateTimeFactory
+import pytest
+from syrupy.assertion import SnapshotAssertion
+
+from homeassistant.components.emoncms.const import CONF_ONLY_INCLUDE_FEEDID, DOMAIN
+from homeassistant.components.sensor import DOMAIN as SENSOR_DOMAIN
+from homeassistant.const import CONF_API_KEY, CONF_ID, CONF_PLATFORM, CONF_URL
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.typing import ConfigType
+from homeassistant.setup import async_setup_component
+
+from .conftest import EMONCMS_FAILURE, FEEDS, get_feed
+
+from tests.common import async_fire_time_changed
+
+YAML = {
+    CONF_PLATFORM: "emoncms",
+    CONF_API_KEY: "my_api_key",
+    CONF_ID: 1,
+    CONF_URL: "http://1.1.1.1",
+    CONF_ONLY_INCLUDE_FEEDID: [1, 2],
+    "scan_interval": 30,
+}
+
+
+@pytest.fixture
+def emoncms_yaml_config() -> ConfigType:
+    """Mock emoncms configuration from yaml."""
+    return {"sensor": YAML}
+
+
+def get_entity_ids(feeds: list[dict[str, Any]]) -> list[str]:
+    """Get emoncms entity ids."""
+    return [
+        f"{SENSOR_DOMAIN}.{DOMAIN}_{feed["name"].replace(' ', '_')}" for feed in feeds
+    ]
+
+
+def get_feeds(nbs: list[int]) -> list[dict[str, Any]]:
+    """Get feeds."""
+    return [feed for feed in FEEDS if feed["id"] in str(nbs)]
+
+
+async def test_coordinator_update(
+    hass: HomeAssistant,
+    emoncms_yaml_config: ConfigType,
+    snapshot: SnapshotAssertion,
+    emoncms_client: AsyncMock,
+    caplog: pytest.LogCaptureFixture,
+    freezer: FrozenDateTimeFactory,
+) -> None:
+    """Test coordinator update."""
+    emoncms_client.async_request.return_value = {
+        "success": True,
+        "message": [get_feed(1, unit="°C")],
+    }
+    await async_setup_component(hass, SENSOR_DOMAIN, emoncms_yaml_config)
+    await hass.async_block_till_done()
+    feeds = get_feeds([1])
+    for entity_id in get_entity_ids(feeds):
+        state = hass.states.get(entity_id)
+        assert state == snapshot(name=entity_id)
+
+    async def skip_time() -> None:
+        freezer.tick(60)
+        async_fire_time_changed(hass)
+        await hass.async_block_till_done(wait_background_tasks=True)
+
+    emoncms_client.async_request.return_value = {
+        "success": True,
+        "message": [get_feed(1, unit="°C", value=24.04, timestamp=1665509670)],
+    }
+
+    await skip_time()
+
+    for entity_id in get_entity_ids(feeds):
+        state = hass.states.get(entity_id)
+        assert state.attributes["LastUpdated"] == 1665509670
+        assert state.state == "24.04"
+
+    emoncms_client.async_request.return_value = EMONCMS_FAILURE
+
+    await skip_time()
+
+    assert f"Error fetching {DOMAIN}_coordinator data" in caplog.text