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https://github.com/jpawlowski/hass.tibber_prices.git
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96f36a3339
Accepts battery parameters (capacity, current/target SoC, max power) and returns a cost-minimized charging schedule with per-interval power, SoC progression, and total cost — no manual duration calculation needed. Supports fixed, continuous (min_charge_power_w), and stepped (charge_power_steps_w) charging modes, deadline-aware two-pass planning (must_reach_soc + must_reach_by / must_reach_by_event), and round-trip economics (expected_discharge_price, reserve_for_discharge, max_cost_per_kwh) for arbitrage use cases. Includes min_charge_duration and max_cycles_per_day constraints. Groups deadline fields (must_reach_soc_*, must_reach_by, must_reach_by_event) into a dedicated section so a deadline use case can be configured in one place. Battery section lists capacity before the percent SoC fields that depend on it. Response exposes stable reason codes (already_at_target, energy_unreachable, energy_unreachable_by_ deadline, no_intervals_after_economic_filter, …) documented in the service description and user docs.
48 lines
1.5 KiB
Python
48 lines
1.5 KiB
Python
"""Unit tests for charging energy calculation helpers."""
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from __future__ import annotations
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from custom_components.tibber_prices.services.charging.energy_calculator import (
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build_soc_progression,
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calculate_duration_intervals,
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calculate_energy_needed,
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soc_percent_to_kwh,
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)
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def test_soc_percent_to_kwh() -> None:
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"""Convert percent SoC to kWh."""
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assert soc_percent_to_kwh(25.0, 12.0) == 3.0
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def test_calculate_energy_needed_accounts_for_efficiency() -> None:
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"""Grid energy should include charging losses."""
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assert calculate_energy_needed(2.0, 6.0, 0.8) == 5.0
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def test_calculate_duration_intervals_rounds_up() -> None:
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"""Charging duration should round up to the next full interval."""
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assert calculate_duration_intervals(2.1, 4000) == 3
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def test_build_soc_progression_adds_soc_fields() -> None:
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"""Each interval should include power, energy, and SoC after charging."""
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intervals = [
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{"startsAt": "2026-01-01T00:00:00+00:00", "total": 0.10, "level": "NORMAL"},
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{"startsAt": "2026-01-01T00:15:00+00:00", "total": 0.12, "level": "NORMAL"},
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]
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result = build_soc_progression(
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intervals,
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power_w=4000,
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start_soc_kwh=2.0,
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capacity_kwh=10.0,
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charging_efficiency=1.0,
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)
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assert result[0]["power_w"] == 4000
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assert result[0]["energy_kwh"] == 1.0
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assert result[0]["soc_after_kwh"] == 3.0
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assert result[0]["soc_after_percent"] == 30.0
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assert result[1]["soc_after_kwh"] == 4.0
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assert result[1]["soc_after_percent"] == 40.0
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