Add missing ViCare diagnostics tests (#90821)

Co-authored-by: Hans Oischinger <hans.oischinger@gmail.com>

tests/components/vicare/__init__.py

@@ -1,6 +1,18 @@
 """Test for ViCare."""
 from __future__ import annotations
 
+from typing import Final
+
+from homeassistant.components.vicare.const import CONF_HEATING_TYPE
+from homeassistant.const import CONF_CLIENT_ID, CONF_PASSWORD, CONF_USERNAME
+
 MODULE = "homeassistant.components.vicare"
 
+ENTRY_CONFIG: Final[dict[str, str]] = {
+    CONF_USERNAME: "foo@bar.com",
+    CONF_PASSWORD: "1234",
+    CONF_CLIENT_ID: "5678",
+    CONF_HEATING_TYPE: "auto",
+}
+
 MOCK_MAC = "B874241B7B9"

tests/components/vicare/conftest.py

@@ -1,12 +1,73 @@
 """Fixtures for ViCare integration tests."""
 from __future__ import annotations
 
-from collections.abc import Generator
+from collections.abc import AsyncGenerator, Generator
-from unittest.mock import AsyncMock, patch
+from unittest.mock import AsyncMock, Mock, patch
 
+from PyViCare.PyViCareDeviceConfig import PyViCareDeviceConfig
 import pytest
 
-from . import MODULE
+from homeassistant.components.vicare.const import DOMAIN
+from homeassistant.core import HomeAssistant
+
+from . import ENTRY_CONFIG, MODULE
+
+from tests.common import MockConfigEntry, load_json_object_fixture
+
+
+class MockPyViCare:
+    """Mocked PyVicare class based on a json dump."""
+
+    def __init__(self, fixtures: list[str]) -> None:
+        """Init a single device from json dump."""
+        self.devices = []
+        for idx, fixture in enumerate(fixtures):
+            self.devices.append(
+                PyViCareDeviceConfig(
+                    MockViCareService(fixture),
+                    f"deviceId{idx}",
+                    f"model{idx}",
+                    f"online{idx}",
+                )
+            )
+
+
+class MockViCareService:
+    """PyVicareService mock using a json dump."""
+
+    def __init__(self, fixture: str) -> None:
+        """Initialize the mock from a json dump."""
+        self._test_data = load_json_object_fixture(fixture)
+        self.fetch_all_features = Mock(return_value=self._test_data)
+
+
+@pytest.fixture
+def mock_config_entry() -> MockConfigEntry:
+    """Return the default mocked config entry."""
+    return MockConfigEntry(
+        domain=DOMAIN,
+        unique_id="ViCare",
+        entry_id="1234",
+        data=ENTRY_CONFIG,
+    )
+
+
+@pytest.fixture
+async def mock_vicare_gas_boiler(
+    hass: HomeAssistant, mock_config_entry: MockConfigEntry
+) -> AsyncGenerator[MockConfigEntry, None]:
+    """Return a mocked ViCare API representing a single gas boiler device."""
+    fixtures = ["vicare/Vitodens300W.json"]
+    with patch(
+        f"{MODULE}.vicare_login",
+        return_value=MockPyViCare(fixtures),
+    ):
+        mock_config_entry.add_to_hass(hass)
+
+        await hass.config_entries.async_setup(mock_config_entry.entry_id)
+        await hass.async_block_till_done()
+
+        yield mock_config_entry
 
 
 @pytest.fixture

tests/components/vicare/test_diagnostics.py

@@ -0,0 +1,24 @@
+"""Test ViCare diagnostics."""
+
+from unittest.mock import MagicMock
+
+from syrupy.assertion import SnapshotAssertion
+
+from homeassistant.core import HomeAssistant
+
+from tests.components.diagnostics import get_diagnostics_for_config_entry
+from tests.typing import ClientSessionGenerator
+
+
+async def test_diagnostics(
+    hass: HomeAssistant,
+    hass_client: ClientSessionGenerator,
+    mock_vicare_gas_boiler: MagicMock,
+    snapshot: SnapshotAssertion,
+) -> None:
+    """Test diagnostics."""
+    diag = await get_diagnostics_for_config_entry(
+        hass, hass_client, mock_vicare_gas_boiler
+    )
+
+    assert diag == snapshot