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A GENETIC server with external (import) providers and EOSdash disabled loads several large packages at start that it never uses, which costs a noticeable part of the memory on 512 MB boards: - matplotlib via the GENETIC/GENETIC0 PDF report modules (server/eos.py) - statsmodels via the Holt-Winters fallback in prediction/priceabc.py - pvlib via the weather base class and the pvlib-based providers - bs4/lxml via the ClearOutside provider - scipy via the self-consumption interpolator singletons, which were loaded at import time - the GENETIC0 optimizer, imported by core/ems.py - tzfpy, whose polygon data the computed general.timezone loads Import these where they are used. The interpolator tables are loaded on first use (thread-safe). Nothing changes in what is computed. general.timezone is computed from latitude/longitude and cannot be set. Add general.timezone_override (IANA name, validated with pendulum): when set, general.timezone returns it and the lookup is skipped. When unset (default) the lookup is unchanged. Tests that patched the moved names now patch them at their source. A new test starts the server module in a subprocess and checks that none of these modules is loaded. Co-authored-by: Christin <christin@BigBrother.bikini.bottom.zone> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
81 lines
3.3 KiB
Python
81 lines
3.3 KiB
Python
"""The report endpoint selects retained results and renders outside the event loop."""
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import threading
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from io import BytesIO
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from pathlib import Path
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from types import SimpleNamespace
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import pytest
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from fastapi.testclient import TestClient
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from pypdf import PdfReader
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from akkudoktoreos.optimization.genetic import geneticvisualize
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from akkudoktoreos.optimization.genetic.geneticsolution import GeneticSolution
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from akkudoktoreos.server import eos
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from akkudoktoreos.utils.datetimeutil import to_datetime
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@pytest.fixture
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def retained_result():
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path = Path(__file__).parent / "testdata/genetic/optimize_result_1.json"
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solution = GeneticSolution.model_validate_json(path.read_text())
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solution.start_solution_datetime = to_datetime("2026-09-16T10:00:00+02:00")
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return solution
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def test_missing_algorithm_report_returns_404(config_eos, monkeypatch):
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monkeypatch.setattr(eos, "get_ems", lambda: SimpleNamespace(genetic_solution=lambda: None))
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response = TestClient(eos.app).get("/v1/energy-management/optimization/solution/GENETIC/pdf")
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assert response.status_code == 404
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assert response.headers["content-type"].startswith("application/problem+json")
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def test_retained_algorithm_result_renders_real_pdf(config_eos, monkeypatch, retained_result):
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solution = retained_result
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monkeypatch.setattr(eos, "get_ems", lambda: SimpleNamespace(genetic_solution=lambda: solution))
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# A later run and changed configuration must not retime the retained report.
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from akkudoktoreos.core.coreabc import get_ems
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from akkudoktoreos.optimization.genetic import geneticvisualize
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get_ems().set_start_datetime(to_datetime("2027-01-01T00:00:00+01:00"))
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config_eos.optimization.genetic.interval_sec = 900
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monkeypatch.setattr(
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geneticvisualize, "get_ems", lambda: pytest.fail("Report must retain its own time grid")
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)
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before = solution.model_dump_json()
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response = TestClient(eos.app).get("/v1/energy-management/optimization/solution/GENETIC/pdf")
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assert response.status_code == 200
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assert response.headers["content-type"] == "application/pdf"
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assert "genetic" in response.headers["content-disposition"]
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assert response.content.startswith(b"%PDF-")
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assert len(PdfReader(BytesIO(response.content)).pages) >= 4
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assert solution.model_dump_json() == before
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@pytest.mark.asyncio
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async def test_render_is_offloaded_and_uses_an_owned_copy(config_eos, monkeypatch, retained_result):
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solution = retained_result
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caller_thread = threading.get_ident()
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captured = []
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monkeypatch.setattr(
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eos,
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"get_ems",
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lambda: SimpleNamespace(
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genetic_solution=lambda: solution, genetic0_solution=lambda: solution
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),
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)
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original_controls = list(solution.ac_charge)
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def render(*, solution):
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captured.append((threading.get_ident(), solution))
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solution.ac_charge[0] = 0.123
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return b"%PDF-isolated-render"
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# The PDF stack is imported on first use, so patch it at its source.
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monkeypatch.setattr(geneticvisualize, "genetic_prepare_visualize", render)
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response = await eos.fastapi_energy_management_optimization_solution_genetic_pdf_get()
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assert response.body == b"%PDF-isolated-render"
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assert captured[0][0] != caller_thread
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assert captured[0][1] is not solution
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assert solution.ac_charge == original_controls
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