Add LaMetric button tests (#78754)

.coveragerc

@@ -645,8 +645,6 @@ omit =
     homeassistant/components/kostal_plenticore/switch.py
     homeassistant/components/kwb/sensor.py
     homeassistant/components/lacrosse/sensor.py
-    homeassistant/components/lametric/button.py
-    homeassistant/components/lametric/entity.py
     homeassistant/components/lametric/notify.py
     homeassistant/components/lametric/number.py
     homeassistant/components/lannouncer/notify.py

tests/components/lametric/conftest.py

@@ -94,3 +94,16 @@ def mock_lametric() -> Generator[MagicMock, None, None]:
             load_fixture("device.json", DOMAIN)
         )
         yield lametric
+
+
+@pytest.fixture
+async def init_integration(
+    hass: HomeAssistant, mock_config_entry: MockConfigEntry, mock_lametric: MagicMock
+) -> MockConfigEntry:
+    """Set up the LaMetric integration for testing."""
+    mock_config_entry.add_to_hass(hass)
+
+    await hass.config_entries.async_setup(mock_config_entry.entry_id)
+    await hass.async_block_till_done()
+
+    return mock_config_entry

tests/components/lametric/test_button.py

@@ -0,0 +1,113 @@
+"""Tests for the LaMetric button platform."""
+from unittest.mock import MagicMock
+
+import pytest
+
+from homeassistant.components.button import DOMAIN as BUTTON_DOMAIN, SERVICE_PRESS
+from homeassistant.components.lametric.const import DOMAIN
+from homeassistant.const import ATTR_ENTITY_ID, ATTR_ICON, STATE_UNKNOWN
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers import device_registry as dr, entity_registry as er
+from homeassistant.helpers.entity import EntityCategory
+
+from tests.common import MockConfigEntry
+
+
+@pytest.mark.freeze_time("2022-09-19 12:07:30")
+async def test_button_app_next(
+    hass: HomeAssistant,
+    init_integration: MockConfigEntry,
+    mock_lametric: MagicMock,
+) -> None:
+    """Test the LaMetric next app button."""
+    device_registry = dr.async_get(hass)
+    entity_registry = er.async_get(hass)
+
+    state = hass.states.get("button.frenck_s_lametric_next_app")
+    assert state
+    assert state.attributes.get(ATTR_ICON) == "mdi:arrow-right-bold"
+    assert state.state == STATE_UNKNOWN
+
+    entry = entity_registry.async_get("button.frenck_s_lametric_next_app")
+    assert entry
+    assert entry.unique_id == "SA110405124500W00BS9-app_next"
+    assert entry.entity_category == EntityCategory.CONFIG
+
+    assert entry.device_id
+    device_entry = device_registry.async_get(entry.device_id)
+    assert device_entry
+    assert device_entry.configuration_url is None
+    assert device_entry.connections == {
+        (dr.CONNECTION_NETWORK_MAC, "aa:bb:cc:dd:ee:ff")
+    }
+    assert device_entry.entry_type is None
+    assert device_entry.identifiers == {(DOMAIN, "SA110405124500W00BS9")}
+    assert device_entry.manufacturer == "LaMetric Inc."
+    assert device_entry.model == "LM 37X8"
+    assert device_entry.name == "Frenck's LaMetric"
+    assert device_entry.sw_version == "2.2.2"
+    assert device_entry.hw_version is None
+
+    await hass.services.async_call(
+        BUTTON_DOMAIN,
+        SERVICE_PRESS,
+        {ATTR_ENTITY_ID: "button.frenck_s_lametric_next_app"},
+        blocking=True,
+    )
+
+    assert len(mock_lametric.app_next.mock_calls) == 1
+    mock_lametric.app_next.assert_called_with()
+
+    state = hass.states.get("button.frenck_s_lametric_next_app")
+    assert state
+    assert state.state == "2022-09-19T12:07:30+00:00"
+
+
+@pytest.mark.freeze_time("2022-09-19 12:07:30")
+async def test_button_app_previous(
+    hass: HomeAssistant,
+    init_integration: MockConfigEntry,
+    mock_lametric: MagicMock,
+) -> None:
+    """Test the LaMetric previous app button."""
+    device_registry = dr.async_get(hass)
+    entity_registry = er.async_get(hass)
+
+    state = hass.states.get("button.frenck_s_lametric_previous_app")
+    assert state
+    assert state.attributes.get(ATTR_ICON) == "mdi:arrow-left-bold"
+    assert state.state == STATE_UNKNOWN
+
+    entry = entity_registry.async_get("button.frenck_s_lametric_previous_app")
+    assert entry
+    assert entry.unique_id == "SA110405124500W00BS9-app_previous"
+    assert entry.entity_category == EntityCategory.CONFIG
+
+    assert entry.device_id
+    device_entry = device_registry.async_get(entry.device_id)
+    assert device_entry
+    assert device_entry.configuration_url is None
+    assert device_entry.connections == {
+        (dr.CONNECTION_NETWORK_MAC, "aa:bb:cc:dd:ee:ff")
+    }
+    assert device_entry.entry_type is None
+    assert device_entry.identifiers == {(DOMAIN, "SA110405124500W00BS9")}
+    assert device_entry.manufacturer == "LaMetric Inc."
+    assert device_entry.model == "LM 37X8"
+    assert device_entry.name == "Frenck's LaMetric"
+    assert device_entry.sw_version == "2.2.2"
+    assert device_entry.hw_version is None
+
+    await hass.services.async_call(
+        BUTTON_DOMAIN,
+        SERVICE_PRESS,
+        {ATTR_ENTITY_ID: "button.frenck_s_lametric_previous_app"},
+        blocking=True,
+    )
+
+    assert len(mock_lametric.app_previous.mock_calls) == 1
+    mock_lametric.app_previous.assert_called_with()
+
+    state = hass.states.get("button.frenck_s_lametric_previous_app")
+    assert state
+    assert state.state == "2022-09-19T12:07:30+00:00"