60 lines
2.1 KiB
Python
60 lines
2.1 KiB
Python
"""EvrOutput._resolve_pulser: an out-of-range pulser number is routine IOC
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state (an unwired output), not a per-output failure.
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`init_all()` on the real Bernina EVR0 hits this on a few dozen outputs at
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once, all wired to the sentinel 65535 -- see the module docstring in
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`eco.timing.event_timing_new_new`. Two things follow from that being routine:
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the message should not be shown by default (WARNING -> DEBUG, matching the
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"unconfigured slot" treatment in `MasterEventSystem._get_slot_codes`), and it
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should not cost a fresh `DummyPulser` (eight `AdjustableMemory` children) per
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occurrence -- one shared, lazily-built instance is enough.
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"""
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import logging
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import pytest
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evt = pytest.importorskip("eco.timing.event_timing_new_new")
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@pytest.fixture(autouse=True)
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def _reset_shared_dummy(monkeypatch):
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monkeypatch.setattr(evt, "_shared_dummy_pulser", None)
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def _make_output(monkeypatch, number=65535):
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monkeypatch.setattr(
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evt, "read_pv_value", lambda *a, **k: number
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)
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output = evt.EvrOutput.__new__(evt.EvrOutput)
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output.name = "output_test"
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output.pv_base = "TEST:Output"
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output._pulsers = [object() for _ in range(24)]
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return output
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def test_out_of_range_pulser_returns_the_shared_dummy(monkeypatch):
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output_a = _make_output(monkeypatch)
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output_b = _make_output(monkeypatch)
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pulser_a = output_a._resolve_pulser(None, "pulserA")
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pulser_b = output_b._resolve_pulser(None, "pulserB")
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assert isinstance(pulser_a, evt.DummyPulser)
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assert pulser_a is pulser_b, "one shared instance, not one per output"
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assert pulser_a is evt._get_shared_dummy_pulser()
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def test_out_of_range_pulser_is_not_shown_by_default(monkeypatch, caplog):
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output = _make_output(monkeypatch)
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with caplog.at_level(logging.WARNING, logger=evt.__name__):
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output._resolve_pulser(None, "pulserA")
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assert caplog.text == "", "should be invisible at the default log level"
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with caplog.at_level(logging.DEBUG, logger=evt.__name__):
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output._resolve_pulser(None, "pulserA")
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assert "does not address any of the" in caplog.text
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