40 lines
1.1 KiB
Python
40 lines
1.1 KiB
Python
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"""Test the basic functionalities in the `OrderHistory` class."""
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# pylint:disable=no-self-use
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import pytest
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from tests import config as test_config
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from urban_meal_delivery.forecasts import timify
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class TestSpecialMethods:
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"""Test the special methods in `OrderHistory`."""
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@pytest.mark.parametrize('time_step', test_config.TIME_STEPS)
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def test_instantiate(self, grid, time_step):
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"""Test `OrderHistory.__init__()`."""
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oh = timify.OrderHistory(grid=grid, time_step=time_step)
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assert oh is not None
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class TestProperties:
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"""Test the properties in `OrderHistory`."""
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def test_totals_is_cached(self, grid, monkeypatch):
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"""Test `.totals` property.
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The result of the `OrderHistory.aggregate_orders()` method call
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is cached in the `OrderHistory.totals` property.
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"""
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oh = timify.OrderHistory(grid=grid, time_step=test_config.LONG_TIME_STEP)
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sentinel = object()
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monkeypatch.setattr(oh, 'aggregate_orders', lambda: sentinel)
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result1 = oh.totals
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result2 = oh.totals
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assert result1 is result2
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assert result1 is sentinel
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