42 lines
1.5 KiB
Python
42 lines
1.5 KiB
Python
"""S5.2 — Varsling: unit/contract tests for ``notify.py`` (Notifier protocol + notifiers).
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Detach-seam (RED-when-detached) twins live in ``tests/test_notify_loadbearing.py``. Tests may
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import MAF-tainted modules freely (``verdicts``) — only ``notify.py`` itself must stay MAF-free.
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"""
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from __future__ import annotations
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import io
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from portfolio_optimiser.notify import ConsoleNotifier, Notifier
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from portfolio_optimiser.verdicts import ProposalFeatures, Verdict, capture_verdict
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def _verdict() -> Verdict:
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return capture_verdict(
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ProposalFeatures(
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affected_codes=frozenset({"05.2", "03.1"}),
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measure_type="scope_reduction",
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claimed_saving_nok=200_000.0,
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description="LED retrofit",
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),
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"approved",
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"feasible within range",
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)
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def test_plain_callable_satisfies_notifier() -> None:
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"""The seam promise: any plain callable satisfies the runtime-checkable ``Notifier`` protocol,
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so ``run_project(notify=lambda v: ...)`` stays valid — a structural superset of
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``Callable[[Verdict], None]``, not a new ABC (needs ``@runtime_checkable``)."""
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assert isinstance(lambda v: None, Notifier)
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def test_console_emits_id_and_decision() -> None:
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"""ConsoleNotifier writes the verdict id + decision to the injected stream (never a URL)."""
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stream = io.StringIO()
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verdict = _verdict()
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ConsoleNotifier(stream=stream)(verdict)
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out = stream.getvalue()
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assert verdict.id in out
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assert verdict.decision in out
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