diff --git a/tests/components/rova/__init__.py b/tests/components/rova/__init__.py
index 631d37c09df..b9b0e68ed3c 100644
--- a/tests/components/rova/__init__.py
+++ b/tests/components/rova/__init__.py
@@ -1 +1,18 @@
 """Tests for the Rova component."""
+
+from unittest.mock import patch
+
+from homeassistant.const import Platform
+from homeassistant.core import HomeAssistant
+
+from tests.common import MockConfigEntry
+
+
+async def setup_with_selected_platforms(
+    hass: HomeAssistant, entry: MockConfigEntry, platforms: list[Platform]
+) -> None:
+    """Set up the Rova integration with the selected platforms."""
+    entry.add_to_hass(hass)
+    with patch("homeassistant.components.rova.PLATFORMS", platforms):
+        assert await hass.config_entries.async_setup(entry.entry_id)
+        await hass.async_block_till_done()
diff --git a/tests/components/rova/conftest.py b/tests/components/rova/conftest.py
index 51cb94c64f7..ced0baf5662 100644
--- a/tests/components/rova/conftest.py
+++ b/tests/components/rova/conftest.py
@@ -4,6 +4,15 @@ from unittest.mock import MagicMock, patch
 
 import pytest
 
+from homeassistant.components.rova.const import (
+    CONF_HOUSE_NUMBER,
+    CONF_HOUSE_NUMBER_SUFFIX,
+    CONF_ZIP_CODE,
+    DOMAIN,
+)
+
+from tests.common import MockConfigEntry, load_json_array_fixture
+
 
 @pytest.fixture
 def mock_rova():
@@ -18,4 +27,22 @@ def mock_rova():
         patch("homeassistant.components.rova.Rova", return_value=api),
     ):
         api.is_rova_area.return_value = True
+        api.get_calendar_items.return_value = load_json_array_fixture(
+            "calendar_items.json", DOMAIN
+        )
         yield api
+
+
+@pytest.fixture
+def mock_config_entry() -> MockConfigEntry:
+    """Mock config entry."""
+    return MockConfigEntry(
+        domain=DOMAIN,
+        unique_id="8381BE13",
+        title="8381BE 13",
+        data={
+            CONF_ZIP_CODE: "8381BE",
+            CONF_HOUSE_NUMBER: "13",
+            CONF_HOUSE_NUMBER_SUFFIX: "",
+        },
+    )
diff --git a/tests/components/rova/fixtures/calendar_items.json b/tests/components/rova/fixtures/calendar_items.json
new file mode 100644
index 00000000000..168bedb0d50
--- /dev/null
+++ b/tests/components/rova/fixtures/calendar_items.json
@@ -0,0 +1,18 @@
+[
+  {
+    "GarbageTypeCode": "GFT",
+    "Date": "2024-02-21T00:00:00"
+  },
+  {
+    "GarbageTypeCode": "PAPIER",
+    "Date": "2024-03-06T00:00:00"
+  },
+  {
+    "GarbageTypeCode": "PMD",
+    "Date": "2024-03-12T00:00:00"
+  },
+  {
+    "GarbageTypeCode": "RESTAFVAL",
+    "Date": "2024-03-12T00:00:00"
+  }
+]
diff --git a/tests/components/rova/snapshots/test_sensor.ambr b/tests/components/rova/snapshots/test_sensor.ambr
new file mode 100644
index 00000000000..a70b62c3672
--- /dev/null
+++ b/tests/components/rova/snapshots/test_sensor.ambr
@@ -0,0 +1,193 @@
+# serializer version: 1
+# name: test_all_entities[sensor.8381be13_gft-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': set({
+    }),
+    'area_id': None,
+    'capabilities': None,
+    'config_entry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'sensor',
+    'entity_category': None,
+    'entity_id': 'sensor.8381be13_gft',
+    'has_entity_name': False,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'options': dict({
+    }),
+    'original_device_class': <SensorDeviceClass.TIMESTAMP: 'timestamp'>,
+    'original_icon': 'mdi:recycle',
+    'original_name': '8381BE13_gft',
+    'platform': 'rova',
+    'previous_unique_id': None,
+    'supported_features': 0,
+    'translation_key': None,
+    'unique_id': '8381BE13_gft',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_all_entities[sensor.8381be13_gft-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'device_class': 'timestamp',
+      'friendly_name': '8381BE13_gft',
+      'icon': 'mdi:recycle',
+    }),
+    'context': <ANY>,
+    'entity_id': 'sensor.8381be13_gft',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': '2024-02-20T23:00:00+00:00',
+  })
+# ---
+# name: test_all_entities[sensor.8381be13_papier-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': set({
+    }),
+    'area_id': None,
+    'capabilities': None,
+    'config_entry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'sensor',
+    'entity_category': None,
+    'entity_id': 'sensor.8381be13_papier',
+    'has_entity_name': False,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'options': dict({
+    }),
+    'original_device_class': <SensorDeviceClass.TIMESTAMP: 'timestamp'>,
+    'original_icon': 'mdi:recycle',
+    'original_name': '8381BE13_papier',
+    'platform': 'rova',
+    'previous_unique_id': None,
+    'supported_features': 0,
+    'translation_key': None,
+    'unique_id': '8381BE13_papier',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_all_entities[sensor.8381be13_papier-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'device_class': 'timestamp',
+      'friendly_name': '8381BE13_papier',
+      'icon': 'mdi:recycle',
+    }),
+    'context': <ANY>,
+    'entity_id': 'sensor.8381be13_papier',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': '2024-03-05T23:00:00+00:00',
+  })
+# ---
+# name: test_all_entities[sensor.8381be13_pmd-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': set({
+    }),
+    'area_id': None,
+    'capabilities': None,
+    'config_entry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'sensor',
+    'entity_category': None,
+    'entity_id': 'sensor.8381be13_pmd',
+    'has_entity_name': False,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'options': dict({
+    }),
+    'original_device_class': <SensorDeviceClass.TIMESTAMP: 'timestamp'>,
+    'original_icon': 'mdi:recycle',
+    'original_name': '8381BE13_pmd',
+    'platform': 'rova',
+    'previous_unique_id': None,
+    'supported_features': 0,
+    'translation_key': None,
+    'unique_id': '8381BE13_pmd',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_all_entities[sensor.8381be13_pmd-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'device_class': 'timestamp',
+      'friendly_name': '8381BE13_pmd',
+      'icon': 'mdi:recycle',
+    }),
+    'context': <ANY>,
+    'entity_id': 'sensor.8381be13_pmd',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': '2024-03-11T23:00:00+00:00',
+  })
+# ---
+# name: test_all_entities[sensor.8381be13_restafval-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': set({
+    }),
+    'area_id': None,
+    'capabilities': None,
+    'config_entry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'sensor',
+    'entity_category': None,
+    'entity_id': 'sensor.8381be13_restafval',
+    'has_entity_name': False,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'options': dict({
+    }),
+    'original_device_class': <SensorDeviceClass.TIMESTAMP: 'timestamp'>,
+    'original_icon': 'mdi:recycle',
+    'original_name': '8381BE13_restafval',
+    'platform': 'rova',
+    'previous_unique_id': None,
+    'supported_features': 0,
+    'translation_key': None,
+    'unique_id': '8381BE13_restafval',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_all_entities[sensor.8381be13_restafval-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'device_class': 'timestamp',
+      'friendly_name': '8381BE13_restafval',
+      'icon': 'mdi:recycle',
+    }),
+    'context': <ANY>,
+    'entity_id': 'sensor.8381be13_restafval',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': '2024-03-11T23:00:00+00:00',
+  })
+# ---
diff --git a/tests/components/rova/test_sensor.py b/tests/components/rova/test_sensor.py
new file mode 100644
index 00000000000..ae8b64363da
--- /dev/null
+++ b/tests/components/rova/test_sensor.py
@@ -0,0 +1,34 @@
+"""Tests for the Rova component."""
+
+from unittest.mock import MagicMock
+
+from syrupy import SnapshotAssertion
+
+from homeassistant.const import Platform
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers import entity_registry as er
+
+from . import setup_with_selected_platforms
+
+from tests.common import MockConfigEntry
+
+
+async def test_all_entities(
+    hass: HomeAssistant,
+    snapshot: SnapshotAssertion,
+    mock_rova: MagicMock,
+    mock_config_entry: MockConfigEntry,
+    entity_registry: er.EntityRegistry,
+) -> None:
+    """Test all entities."""
+    await setup_with_selected_platforms(hass, mock_config_entry, [Platform.SENSOR])
+    entity_entries = er.async_entries_for_config_entry(
+        entity_registry, mock_config_entry.entry_id
+    )
+
+    assert entity_entries
+    for entity_entry in entity_entries:
+        assert hass.states.get(entity_entry.entity_id) == snapshot(
+            name=f"{entity_entry.entity_id}-state"
+        )
+        assert entity_entry == snapshot(name=f"{entity_entry.entity_id}-entry")