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# -*- coding: utf-8 - |
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"""Basic tests. |
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This file is part of project oemof (github.com/oemof/oemof). It's copyrighted |
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by the contributors recorded in the version control history of the file, |
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available from its original location oemof/tests/basic_tests.py |
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SPDX-License-Identifier: MIT |
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""" |
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import warnings |
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import pandas as pd |
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import pytest |
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from oemof import solph |
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def test_infeasible_model(): |
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es = solph.EnergySystem(timeincrement=[1]) |
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bel = solph.buses.Bus(label="bus") |
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es.add(bel) |
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es.add( |
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solph.components.Sink( |
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inputs={bel: solph.flows.Flow(nominal_capacity=5, fix=[1])} |
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) |
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) |
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es.add( |
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solph.components.Source( |
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outputs={ |
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bel: solph.flows.Flow(nominal_capacity=4, variable_costs=5) |
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} |
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) |
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) |
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m = solph.Model(es) |
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with pytest.warns( |
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UserWarning, match="The solver did not return an optimal solution" |
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): |
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m.solve(solver="cbc", allow_nonoptimal=True) |
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with pytest.raises( |
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RuntimeError, match="The solver did not return an optimal solution" |
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): |
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m.solve(solver="cbc", allow_nonoptimal=False) |
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def test_unbounded_model(): |
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es = solph.EnergySystem(timeincrement=[1]) |
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bel = solph.buses.Bus(label="bus") |
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es.add(bel) |
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# Add a Sink with a higher demand |
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es.add(solph.components.Sink(inputs={bel: solph.flows.Flow()})) |
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# Add a Source with a very high supply |
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es.add( |
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solph.components.Source( |
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outputs={bel: solph.flows.Flow(variable_costs=-5)} |
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) |
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) |
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m = solph.Model(es) |
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with pytest.raises( |
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RuntimeError, match="The solver did not return an optimal solution" |
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): |
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m.solve(solver="cbc", allow_nonoptimal=False) |
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@pytest.mark.filterwarnings( |
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"ignore:Ensure that your timeindex and timeincrement are" |
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" consistent.:UserWarning" |
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) |
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@pytest.mark.filterwarnings( |
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"ignore:CAUTION! You specified the 'periods' attribute:UserWarning" |
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) |
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def test_multi_period_default_discount_rate(): |
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"""Test error being thrown for default multi-period discount rate""" |
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timeindex = pd.date_range(start="2017-01-01", periods=100, freq="D") |
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es = solph.EnergySystem( |
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timeindex=timeindex, |
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timeincrement=[1] * len(timeindex), |
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periods=[timeindex], |
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infer_last_interval=False, |
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) |
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bel = solph.buses.Bus(label="bus") |
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es.add(bel) |
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es.add( |
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solph.components.Sink( |
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label="sink", |
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inputs={ |
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bel: solph.flows.Flow( |
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nominal_capacity=5, fix=[1] * len(timeindex) |
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) |
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}, |
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) |
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) |
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es.add( |
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solph.components.Source( |
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label="source", |
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outputs={ |
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bel: solph.flows.Flow(nominal_capacity=4, variable_costs=5) |
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}, |
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) |
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) |
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msg = ( |
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"By default, a discount_rate of 0.02 is used for a multi-period model." |
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) |
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with warnings.catch_warnings(record=True) as w: |
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solph.Model(es) |
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assert msg in str(w[0].message) |
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oemof /
oemof-solph
