fixup! Implement ListComponents

Add Component tests.

Author: llucax

tests/component/test_base.py

@@ -0,0 +1,105 @@
+# License: MIT
+# Copyright © 2025 Frequenz Energy-as-a-Service GmbH
+
+"""Tests for active_at functionality across components."""
+
+from datetime import datetime, timezone
+from typing import Literal
+from unittest.mock import Mock
+
+import pytest
+
+from frequenz.client.microgrid import ComponentId, Lifetime, MicrogridId
+from frequenz.client.microgrid.component._base import Component
+from frequenz.client.microgrid.component._category import ComponentCategory
+from frequenz.client.microgrid.component._status import ComponentStatus
+
+
+# Test component subclass
+class TestComponent(Component):
+    """A simple component implementation for testing."""
+
+    category: Literal[ComponentCategory.UNSPECIFIED] = ComponentCategory.UNSPECIFIED
+
+
+@pytest.mark.parametrize(
+    "status,lifetime_active,expected",
+    [
+        pytest.param(
+            ComponentStatus.ACTIVE,
+            True,
+            True,
+            id="active status and active lifetime",
+        ),
+        pytest.param(
+            ComponentStatus.ACTIVE,
+            False,
+            False,
+            id="active status but inactive lifetime",
+        ),
+        pytest.param(
+            ComponentStatus.INACTIVE,
+            True,
+            False,
+            id="inactive status but active lifetime",
+        ),
+        pytest.param(
+            ComponentStatus.INACTIVE,
+            False,
+            False,
+            id="inactive status and inactive lifetime",
+        ),
+        pytest.param(
+            ComponentStatus.UNSPECIFIED,
+            True,
+            True,
+            id="unspecified status but active lifetime",
+        ),
+        pytest.param(
+            ComponentStatus.UNSPECIFIED,
+            False,
+            False,
+            id="unspecified status and inactive lifetime",
+        ),
+    ],
+)
+def test_component_active_at(
+    status: ComponentStatus,
+    lifetime_active: bool,
+    expected: bool,
+    caplog: pytest.LogCaptureFixture,
+) -> None:
+    """Test active_at behavior with different status and lifetime combinations.
+
+    Args:
+        status: The component status to test with
+        lifetime_active: Whether the lifetime should report as active
+        expected: The expected result
+        caplog: Fixture to capture log messages
+
+    Raises:
+        AssertionError: If any of the assertions fail.
+    """
+    caplog.set_level("WARNING")
+
+    mock_lifetime = Mock(spec=Lifetime)
+    mock_lifetime.active_at.return_value = lifetime_active
+
+    component = TestComponent(
+        id=ComponentId(1),
+        category=ComponentCategory.UNSPECIFIED,
+        microgrid_id=MicrogridId(1),
+        status=status,
+        operational_lifetime=mock_lifetime,
+    )
+
+    test_time = datetime.now(timezone.utc)
+    assert component.active_at(test_time) == expected
+
+    # Verify lifetime was checked
+    if component.status == ComponentStatus.ACTIVE:
+        mock_lifetime.active_at.assert_called_once_with(test_time)
+
+    # Verify warning for unspecified status
+    if status is ComponentStatus.UNSPECIFIED:
+        assert "unspecified status" in caplog.text.lower()