mirror of
https://github.com/kuhyx/screen-locker.git
synced 2026-11-11 18:33:57 +01:00
Krzysztof kuhy Rudnicki
a0d78bc719
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
274 lines
11 KiB
Python
274 lines
11 KiB
Python
"""Tests for the pure, read-only predicates in _compliance_state.py."""
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from __future__ import annotations
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from datetime import datetime, timezone
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import json
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from typing import TYPE_CHECKING
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from unittest.mock import patch
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from screen_locker import _compliance_state
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from screen_locker._compliance_state import (
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has_logged_today,
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is_early_bird_pending,
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is_scheduled_skip_today,
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is_sick_day_today,
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)
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from screen_locker._sick_tracker import SickHistory
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if TYPE_CHECKING:
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from pathlib import Path
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def _today() -> str:
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return datetime.now(tz=timezone.utc).strftime("%Y-%m-%d")
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class TestIsScheduledSkipToday:
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"""Mirrors test_scheduled_skip.py's coverage, for the standalone function."""
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def test_missing_file(self, tmp_path: Path) -> None:
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"""A missing skips file means today is not a scheduled skip."""
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assert is_scheduled_skip_today(tmp_path / "skips.json") is False
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def test_today_listed(self, tmp_path: Path) -> None:
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"""Today's date in the skips list makes it a scheduled skip."""
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skip_file = tmp_path / "skips.json"
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skip_file.write_text(json.dumps([_today()]))
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assert is_scheduled_skip_today(skip_file) is True
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def test_today_not_listed(self, tmp_path: Path) -> None:
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"""A list without today is not a scheduled skip."""
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skip_file = tmp_path / "skips.json"
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skip_file.write_text(json.dumps(["1999-01-01"]))
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assert is_scheduled_skip_today(skip_file) is False
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def test_corrupt_json(self, tmp_path: Path) -> None:
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"""Unparsable JSON fails closed: not a skip."""
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skip_file = tmp_path / "skips.json"
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skip_file.write_text("{bad}")
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assert is_scheduled_skip_today(skip_file) is False
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def test_explicit_today_override(self, tmp_path: Path) -> None:
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"""The `today` argument overrides the real date."""
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skip_file = tmp_path / "skips.json"
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skip_file.write_text(json.dumps(["2020-05-05"]))
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assert is_scheduled_skip_today(skip_file, today="2020-05-05") is True
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class TestHasLoggedToday:
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"""Mirrors test_init_and_log.py's HMAC branches, for the standalone function."""
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def test_missing_file(self, tmp_path: Path) -> None:
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"""A missing log means nothing was logged today."""
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assert has_logged_today(tmp_path / "log.json") is False
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def test_corrupt_json(self, tmp_path: Path) -> None:
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"""Unparsable JSON fails closed: nothing logged."""
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log_file = tmp_path / "log.json"
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log_file.write_text("{bad}")
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assert has_logged_today(log_file) is False
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def test_no_entry_for_today(self, tmp_path: Path) -> None:
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"""An entry for another day does not count as today's."""
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log_file = tmp_path / "log.json"
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log_file.write_text(json.dumps({"1999-01-01": {}}))
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assert has_logged_today(log_file) is False
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def test_valid_hmac(self, tmp_path: Path) -> None:
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"""A correctly signed entry for today counts."""
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log_file = tmp_path / "log.json"
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log_file.write_text(json.dumps({_today(): {"hmac": "sig"}}))
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with patch(
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"screen_locker._compliance_state.verify_entry_hmac", return_value=True
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):
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assert has_logged_today(log_file) is True
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def test_unsigned_accepted_when_key_unavailable(self, tmp_path: Path) -> None:
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"""With no HMAC key on the machine, an unsigned entry is accepted."""
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log_file = tmp_path / "log.json"
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log_file.write_text(json.dumps({_today(): {}}))
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with (
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patch(
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"screen_locker._compliance_state.verify_entry_hmac", return_value=False
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),
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patch(
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"screen_locker._compliance_state.compute_entry_hmac", return_value=None
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),
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):
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assert has_logged_today(log_file) is True
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def test_rejected_when_key_available(self, tmp_path: Path) -> None:
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"""With a key available, an unsigned entry is rejected as tampering."""
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log_file = tmp_path / "log.json"
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log_file.write_text(json.dumps({_today(): {}}))
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with (
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patch(
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"screen_locker._compliance_state.verify_entry_hmac", return_value=False
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),
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patch(
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"screen_locker._compliance_state.compute_entry_hmac", return_value="sig"
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),
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):
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assert has_logged_today(log_file) is False
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def test_rejected_when_signed_but_invalid(self, tmp_path: Path) -> None:
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"""A signature that does not verify is rejected."""
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log_file = tmp_path / "log.json"
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log_file.write_text(json.dumps({_today(): {"hmac": "tampered"}}))
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with (
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patch(
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"screen_locker._compliance_state.verify_entry_hmac", return_value=False
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),
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patch(
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"screen_locker._compliance_state.compute_entry_hmac", return_value=None
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),
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):
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assert has_logged_today(log_file) is False
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class TestIsEarlyBirdPending:
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"""Mirrors test_early_bird.py's HMAC branches, for the standalone function."""
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def test_missing_file(self, tmp_path: Path) -> None:
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"""A missing pending file means no early bird is pending."""
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assert is_early_bird_pending(tmp_path / "pending.json") is False
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def test_corrupt_json(self, tmp_path: Path) -> None:
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"""Unparsable JSON fails closed: nothing pending."""
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pending_file = tmp_path / "pending.json"
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pending_file.write_text("{bad}")
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assert is_early_bird_pending(pending_file) is False
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def test_not_a_dict(self, tmp_path: Path) -> None:
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"""A JSON list where a dict is expected fails closed."""
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pending_file = tmp_path / "pending.json"
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pending_file.write_text(json.dumps(["not", "a", "dict"]))
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assert is_early_bird_pending(pending_file) is False
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def test_stale_date(self, tmp_path: Path) -> None:
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"""A pending record from an earlier day no longer applies."""
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pending_file = tmp_path / "pending.json"
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pending_file.write_text(json.dumps({"date": "2000-01-01", "hmac": "sig"}))
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assert is_early_bird_pending(pending_file) is False
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def test_valid_hmac(self, tmp_path: Path) -> None:
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"""A correctly signed pending record for today counts."""
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pending_file = tmp_path / "pending.json"
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pending_file.write_text(json.dumps({"date": _today(), "hmac": "sig"}))
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with patch(
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"screen_locker._compliance_state.verify_entry_hmac", return_value=True
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):
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assert is_early_bird_pending(pending_file) is True
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def test_unsigned_accepted_when_key_unavailable(self, tmp_path: Path) -> None:
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"""With no HMAC key, an unsigned pending record is accepted."""
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pending_file = tmp_path / "pending.json"
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pending_file.write_text(json.dumps({"date": _today()}))
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with (
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patch(
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"screen_locker._compliance_state.verify_entry_hmac", return_value=False
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),
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patch(
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"screen_locker._compliance_state.compute_entry_hmac", return_value=None
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),
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):
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assert is_early_bird_pending(pending_file) is True
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def test_rejected_when_key_available(self, tmp_path: Path) -> None:
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"""With a key available, an unsigned pending record is rejected."""
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pending_file = tmp_path / "pending.json"
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pending_file.write_text(json.dumps({"date": _today()}))
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with (
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patch(
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"screen_locker._compliance_state.verify_entry_hmac", return_value=False
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),
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patch(
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"screen_locker._compliance_state.compute_entry_hmac", return_value="sig"
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),
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):
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assert is_early_bird_pending(pending_file) is False
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def test_rejected_when_signed_but_invalid(self, tmp_path: Path) -> None:
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"""A pending record whose signature fails to verify is rejected."""
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pending_file = tmp_path / "pending.json"
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pending_file.write_text(json.dumps({"date": _today(), "hmac": "bad"}))
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with (
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patch(
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"screen_locker._compliance_state.verify_entry_hmac", return_value=False
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),
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patch(
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"screen_locker._compliance_state.compute_entry_hmac", return_value=None
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),
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):
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assert is_early_bird_pending(pending_file) is False
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class TestIsSickDayToday:
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"""Reading today's sick-day status out of the sick history."""
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"""Thin wrapper around _sick_tracker.is_sick_day."""
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def test_true_when_listed(self) -> None:
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"""Today present in the history is a sick day."""
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history = SickHistory(sick_days=[_today()])
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assert is_sick_day_today(history) is True
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def test_false_when_not_listed(self) -> None:
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"""Today absent from the history is not a sick day."""
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history = SickHistory(sick_days=["1999-01-01"])
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assert is_sick_day_today(history) is False
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def test_explicit_today_override(self) -> None:
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"""The `today` argument overrides the real date."""
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history = SickHistory(sick_days=["2020-05-05"])
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assert is_sick_day_today(history, today="2020-05-05") is True
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class TestEarlyBirdWindowOpen:
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"""The early-bird window's start/end boundaries, including the extension."""
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"""Direct tests for the module-private, deliberately independent reimplementation."""
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def test_before_window(self) -> None:
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"""Before the start hour the window is shut."""
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assert (
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_compliance_state._early_bird_window_open(extended=False, local_minutes=299)
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is False
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)
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def test_at_start(self) -> None:
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"""The start minute itself is inside the window."""
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assert (
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_compliance_state._early_bird_window_open(extended=False, local_minutes=300)
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is True
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)
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def test_before_end(self) -> None:
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"""A minute before the end is still inside the window."""
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assert (
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_compliance_state._early_bird_window_open(extended=False, local_minutes=509)
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is True
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)
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def test_at_end_exclusive(self) -> None:
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"""The end minute is exclusive: the window is already shut."""
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assert (
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_compliance_state._early_bird_window_open(extended=False, local_minutes=510)
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is False
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)
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def test_extended_before_end(self) -> None:
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"""With the extension earned, the window runs later."""
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assert (
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_compliance_state._early_bird_window_open(extended=True, local_minutes=539)
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is True
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)
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def test_extended_at_end_exclusive(self) -> None:
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"""The extended end is exclusive too."""
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assert (
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_compliance_state._early_bird_window_open(extended=True, local_minutes=540)
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is False
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)
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