Add SMARD quarter-hour price provider

tests/test_elecpricesmard.py

@@ -0,0 +1,77 @@
+# ruff: noqa: S101
+
+import json
+from unittest.mock import Mock, patch
+
+import pytest
+
+from akkudoktoreos.core.coreabc import get_ems
+from akkudoktoreos.prediction.elecprice import ElecPriceCommonSettings
+from akkudoktoreos.prediction.elecpricesmard import ElecPriceSMARD
+from akkudoktoreos.utils.datetimeutil import to_datetime
+
+
+@pytest.fixture
+def provider(config_eos):
+    """Configure and return the direct SMARD singleton provider."""
+    config_eos.elecprice = ElecPriceCommonSettings(provider="ElecPriceSMARD")
+    provider = ElecPriceSMARD()
+    provider.highest_orig_datetime = None
+    get_ems().set_start_datetime(
+        to_datetime("2026-07-27 00:00:00", in_timezone="Europe/Berlin")
+    )
+    return provider
+
+
+def _response(payload):
+    response = Mock()
+    response.content = json.dumps(payload).encode()
+    response.raise_for_status.return_value = None
+    return response
+
+
+@patch("akkudoktoreos.prediction.elecpricesmard.requests.get")
+def test_request_forecast_fetches_index_and_overlapping_chunks(mock_get, provider):
+    """SMARD index and weekly chunks are combined, sorted, and stripped of null values."""
+    chunk_start = 1785103200000
+    mock_get.side_effect = [
+        _response({"timestamps": [chunk_start]}),
+        _response(
+            {
+                "meta_data": {"version": 1, "created": 1785500527370},
+                "series": [
+                    [1785103200000, 86.04],
+                    [1785106800000, None],
+                    [1785110400000, -1.25],
+                ],
+            }
+        ),
+    ]
+
+    result = provider._request_forecast(
+        start_date="2026-07-27", force_update=True
+    )
+
+    assert result.unix_seconds == [1785103200, 1785110400]
+    assert result.price == [86.04, -1.25]
+    assert result.license_info == "CC BY 4.0 Bundesnetzagentur | SMARD.de"
+    assert mock_get.call_count == 2
+    assert mock_get.call_args_list[0].args[0].endswith("/4169/DE/index_quarterhour.json")
+    assert mock_get.call_args_list[1].args[0].endswith(
+        "/4169/DE/4169_DE_quarterhour_1785103200000.json"
+    )
+
+
+def test_chunk_selection_includes_preceding_overlapping_chunk(provider):
+    """A range beginning mid-week includes the chunk that started before it."""
+    index = provider._validate_index(
+        json.dumps({"timestamps": [1000, 2000, 3000]}).encode()
+    )
+    start = to_datetime(2.5, in_timezone="UTC")
+    end = to_datetime(3.5, in_timezone="UTC")
+
+    assert provider._chunk_timestamps(index, start, end) == [2000, 3000]
+
+
+def test_smard_provider_is_enabled(provider):
+    assert provider.enabled()