"""Tests for weekly and custom day-set recurrence evaluation.""" from __future__ import annotations import datetime import pytest from custom_components.nestquest.recurrence import ( RuleType, RuleValidationError, ScheduleRule, occurs_on, occurrences_between, ) def _d(date: str) -> datetime.date: return datetime.date.fromisoformat(date) # 2026-09-01 is a TUESDAY (weekday 1). # Anchor-week arithmetic (start_date = Tue Sep 1): week 0 spans # Sep 1-7, week 1 spans Sep 8-14, week 2 spans Sep 15-21, and so on — # whole weeks elapsed from the anchor, NOT calendar-Sunday weeks. # A weekly Mon/Wed/Fri (0,2,4) rule at interval 1 anchored here fires # on Wed Sep 2, Fri Sep 4 (both week 0), then Mon Sep 7, Wed Sep 9, # Fri Sep 11 (week 1), Mon Sep 14... (week 2), and so on. def test_weekly_fires_exactly_on_set_weekdays() -> None: rule = ScheduleRule( rule_type=RuleType.WEEKLY, weekday_set={0, 2, 4}, start_date="2026-09-01", ) # Sep 2026: 1=Tue(1), 2=Wed(2), 4=Fri(4), 7=Mon(0), 8=Tue(1), 9=Wed, # 10=Thu(3), 11=Fri(4) assert occurs_on(rule, _d("2026-09-01")) is False # Tue NOT in set assert occurs_on(rule, _d("2026-09-02")) is True # Wed in set assert occurs_on(rule, _d("2026-09-03")) is False # Thu not in set assert occurs_on(rule, _d("2026-09-04")) is True # Fri in set assert occurs_on(rule, _d("2026-09-05")) is False # Sat assert occurs_on(rule, _d("2026-09-06")) is False # Sun assert occurs_on(rule, _d("2026-09-07")) is True # Mon assert occurs_on(rule, _d("2026-09-08")) is False # Tue not in set def test_weekly_start_date_itself_may_not_be_in_set() -> None: """start_date anchors the WEEK count, not a firing day: a Tuesday start for a Mon/Wed/Fri rule fires on Wed Sep 2, not Sep 1.""" rule = ScheduleRule( rule_type=RuleType.WEEKLY, weekday_set={0, 2, 4}, start_date="2026-09-01", ) assert occurs_on(rule, _d("2026-09-01")) is False # Tue=1, not in set assert occurs_on(rule, _d("2026-09-02")) is True # Wed=2 assert occurs_on(rule, _d("2026-09-04")) is True # Fri=4 assert occurs_on(rule, _d("2026-09-07")) is True # Mon, next week def test_weekly_never_fires_before_start() -> None: rule = ScheduleRule( rule_type=RuleType.WEEKLY, weekday_set={2}, # Wednesdays start_date="2026-09-02", # a Wednesday ) # Wed Sep 2 is the anchor day and in-set: fires. Wed Aug 26 (one # week BEFORE the anchor, in-set) must not fire: pre-window. assert occurs_on(rule, _d("2026-09-02")) is True assert occurs_on(rule, _d("2026-08-26")) is False # Wed, before start assert occurs_on(rule, _d("2026-09-09")) is True # Wed, next week def test_weekly_respects_end_date() -> None: rule = ScheduleRule( rule_type=RuleType.WEEKLY, weekday_set={0, 2, 4}, start_date="2026-09-01", end_date="2026-09-10", ) assert occurs_on(rule, _d("2026-09-09")) is True # Wed within end assert occurs_on(rule, _d("2026-09-11")) is False # Fri after end def test_weekly_interval_2_fires_on_alternate_weeks() -> None: """Interval 2: fires on set weekdays only in even week-offsets.""" rule = ScheduleRule( rule_type=RuleType.WEEKLY, weekday_set={0}, interval=2, start_date="2026-09-07", # a Monday ) # Week 0 (Sep 7-13): fires Mon Sep 7. assert occurs_on(rule, _d("2026-09-07")) is True # Week 1 (Sep 14-20): skipped. assert occurs_on(rule, _d("2026-09-14")) is False # Week 2 (Sep 21-27): fires Mon Sep 21. assert occurs_on(rule, _d("2026-09-21")) is True # Week 3 (Sep 28-Oct 4): skipped; Mon Sep 28 does not fire. assert occurs_on(rule, _d("2026-09-28")) is False # Week 4 (Oct 5-11): fires Mon Oct 5. assert occurs_on(rule, _d("2026-10-05")) is True def test_weekly_interval_3_every_third_week() -> None: rule = ScheduleRule( rule_type=RuleType.WEEKLY, weekday_set={3}, interval=3, start_date="2026-09-03", # a Thursday ) assert occurs_on(rule, _d("2026-09-03")) is True # week 0 assert occurs_on(rule, _d("2026-09-10")) is False # week 1 assert occurs_on(rule, _d("2026-09-17")) is False # week 2 assert occurs_on(rule, _d("2026-09-24")) is True # week 3 assert occurs_on(rule, _d("2026-10-15")) is True # week 6 def test_weekly_interval_2_never_fires_in_odd_weeks_across_months() -> None: """The week offset is anchored to start_date across month edges.""" rule = ScheduleRule( rule_type=RuleType.WEEKLY, weekday_set={2}, interval=2, start_date="2026-09-02", # a Wednesday ) # Week 0: Wed Sep 2 fires. Week 1: Wed Sep 9 skipped. # Week 2: Wed Sep 16 fires. Week 3: Wed Sep 23 skipped. # Week 4 (Oct): Wed Sep 30 fires (still week 4!). Week 5: Wed Oct 7 skipped. assert occurs_on(rule, _d("2026-09-02")) is True assert occurs_on(rule, _d("2026-09-09")) is False assert occurs_on(rule, _d("2026-09-16")) is True assert occurs_on(rule, _d("2026-09-23")) is False assert occurs_on(rule, _d("2026-09-30")) is True assert occurs_on(rule, _d("2026-10-07")) is False assert occurs_on(rule, _d("2026-10-14")) is True def test_custom_days_interval_1_behaves_like_weekly() -> None: """CUSTOM_DAYS with interval 1 behaves identically to WEEKLY.""" weekly = ScheduleRule( rule_type=RuleType.WEEKLY, weekday_set={1, 3, 5}, start_date="2026-09-01", ) custom = ScheduleRule( rule_type=RuleType.CUSTOM_DAYS, weekday_set={1, 3, 5}, start_date="2026-09-01", ) # Whole month of September must match exactly. for day in range(1, 31): date = datetime.date(2026, 9, day) assert occurs_on(weekly, date) == occurs_on(custom, date), date def test_custom_days_never_fires_before_start(tmp_path) -> None: rule = ScheduleRule( rule_type=RuleType.CUSTOM_DAYS, weekday_set={0}, start_date="2026-09-07", # a Monday ) assert occurs_on(rule, _d("2026-09-06")) is False # Sun, before assert occurs_on(rule, _d("2026-09-07")) is True # Mon, on def test_hand_checked_8_week_sequence_weekly_mon_wed_fri() -> None: """The done-condition's hand-checked sequence: 8 weeks of a Mon/Wed/Fri rule anchored at Tue 2026-09-01, interval 1. Anchor weeks from Tue Sep 1 (week 0 = Sep 1-7, week 1 = Sep 8-14, ... week 7 = Oct 20-26). Mon/Wed/Fri firings (interval 1, so every in-set weekday fires regardless of week): Week 0 (Sep 1-7): Wed 2, Fri 4 (Mon Sep 7 is ALSO week 0: 6 elapsed days // 7 = 0 — the anchor week boundary sits on Sep 8, not on the Monday) Week 1 (Sep 8-14): Wed 9, Fri 11, Mon 14 (13 elapsed days // 7 = 1) Week 2 (Sep 15-21): Wed 16, Fri 18, Mon 21 Week 3 (Sep 22-28): Wed 23, Fri 25, Mon 28 Week 4 (Sep 29-Oct 5): Wed 30, Fri 2 (Oct), Mon 5 (Oct) Week 5 (Oct 6-12): Wed 7, Fri 9, Mon 12 Week 6 (Oct 13-19): Wed 14, Fri 16, Mon 19 Week 7 (Oct 20-26): Wed 21, Fri 23, Mon 26 """ rule = ScheduleRule( rule_type=RuleType.WEEKLY, weekday_set={0, 2, 4}, start_date="2026-09-01", end_date="2026-10-26", ) expected = [ "2026-09-02", "2026-09-04", "2026-09-07", "2026-09-09", "2026-09-11", "2026-09-14", "2026-09-16", "2026-09-18", "2026-09-21", "2026-09-23", "2026-09-25", "2026-09-28", "2026-09-30", "2026-10-02", "2026-10-05", "2026-10-07", "2026-10-09", "2026-10-12", "2026-10-14", "2026-10-16", "2026-10-19", "2026-10-21", "2026-10-23", "2026-10-26", ] actual = occurrences_between(rule, "2026-09-01", "2026-10-26") assert actual == expected, ( f"diff: {set(expected) ^ set(actual)}" ) def test_hand_checked_8_week_sequence_weekly_interval_2_mondays() -> None: """8 weeks of a Monday rule at interval 2, anchored Mon 2026-09-07 (week 0 = Sep 7-13): fires in weeks 0, 2, 4, 6 -> Mon Sep 7, Mon Sep 21, Mon Oct 5, Mon Oct 19.""" rule = ScheduleRule( rule_type=RuleType.WEEKLY, weekday_set={0}, interval=2, start_date="2026-09-07", end_date="2026-10-31", ) actual = occurrences_between(rule, "2026-09-07", "2026-10-31") assert actual == ["2026-09-07", "2026-09-21", "2026-10-05", "2026-10-19"] def test_custom_days_hand_checked_8_week_sequence() -> None: """8 weeks of a Tue/Thu/Sun rule (1,3,6) anchored Mon 2026-09-07: fires Tue 8, Thu 10, Sun 13, then weekly.""" rule = ScheduleRule( rule_type=RuleType.CUSTOM_DAYS, weekday_set={1, 3, 6}, start_date="2026-09-07", ) # Anchor weeks from Mon Sep 7 (w0 = Sep 7-13 ... w7 = Oct 26-Nov 1): # Tue/Thu/Sun firings per week, 8 weeks fully covered. actual = occurrences_between(rule, "2026-09-07", "2026-11-01") assert actual == [ "2026-09-08", "2026-09-10", "2026-09-13", "2026-09-15", "2026-09-17", "2026-09-20", "2026-09-22", "2026-09-24", "2026-09-27", "2026-09-29", "2026-10-01", "2026-10-04", "2026-10-06", "2026-10-08", "2026-10-11", "2026-10-13", "2026-10-15", "2026-10-18", "2026-10-20", "2026-10-22", "2026-10-25", "2026-10-27", "2026-10-29", "2026-11-01", ] def test_weekly_survives_53_week_year_boundary() -> None: """Anchor arithmetic never flips at Jan 1 (the ISO parity trap): a weekly rule spanning New Year keeps its weekday pattern.""" rule = ScheduleRule( rule_type=RuleType.WEEKLY, weekday_set={3}, # Thursdays start_date="2026-12-24", # a Thursday ) # Thursdays around New Year 2026->2027: Dec 24, 31, Jan 7, 14. assert occurs_on(rule, _d("2026-12-24")) is True assert occurs_on(rule, _d("2026-12-31")) is True assert occurs_on(rule, _d("2027-01-07")) is True assert occurs_on(rule, _d("2027-01-14")) is True # Interleaved days are not Thursdays. assert occurs_on(rule, _d("2027-01-04")) is False # Monday assert occurs_on(rule, _d("2027-01-05")) is False # Tuesday def test_weekly_interval_2_across_year_boundary() -> None: """Interval weeks continue across Jan 1 with no parity flip.""" rule = ScheduleRule( rule_type=RuleType.WEEKLY, weekday_set={4}, interval=2, start_date="2026-12-25", # a Friday ) # Weeks: Dec 25 (w0) fires, Jan 1 (w1) skipped, Jan 8 (w2) fires, # Jan 15 (w3) skipped, Jan 22 (w4) fires. assert occurs_on(rule, _d("2026-12-25")) is True assert occurs_on(rule, _d("2027-01-01")) is False assert occurs_on(rule, _d("2027-01-08")) is True assert occurs_on(rule, _d("2027-01-15")) is False assert occurs_on(rule, _d("2027-01-22")) is True def test_occurrences_between_weekly_disjoint(tmp_path) -> None: rule = ScheduleRule( rule_type=RuleType.WEEKLY, weekday_set={1}, start_date="2026-09-01", end_date="2026-09-30", ) assert occurrences_between(rule, "2026-10-01", "2026-10-31") == [] def test_occurrences_between_weekly_interval_2_span() -> None: rule = ScheduleRule( rule_type=RuleType.WEEKLY, weekday_set={0}, interval=2, start_date="2026-09-07", end_date="2026-10-31", ) result = occurrences_between(rule, "2026-09-01", "2026-10-31") assert result == ["2026-09-07", "2026-09-21", "2026-10-05", "2026-10-19"] def test_occurrences_between_rejects_inverted_bounds() -> None: rule = ScheduleRule( rule_type=RuleType.WEEKLY, weekday_set={0}, start_date="2026-09-01" ) with pytest.raises(RuleValidationError, match="on or after"): occurrences_between(rule, "2026-10-10", "2026-09-01") def test_weekly_interval_2_non_monday_anchor_boundary() -> None: """The anchor week is anchored at start_date, NOT a calendar week: a Tuesday-anchored Monday rule fires on Mon Sep 7 (week 0 extends through Sep 7), skips Mon Sep 14 (week 1), fires Mon Sep 21 (week 2).""" rule = ScheduleRule( rule_type=RuleType.WEEKLY, weekday_set={0}, interval=2, start_date="2026-09-01", # a TUESDAY anchor ) # Sep 7 - Sep 1 = 6 days -> week 0 (even): fires. assert occurs_on(rule, _d("2026-09-07")) is True # Sep 14: 13 days -> week 1 (odd): skipped. assert occurs_on(rule, _d("2026-09-14")) is False # Sep 21: 20 days -> week 2 (even): fires. assert occurs_on(rule, _d("2026-09-21")) is True # Sep 28: 27 days -> week 3 (odd): skipped. assert occurs_on(rule, _d("2026-09-28")) is False # Oct 5: 34 days -> week 4 (even): fires. assert occurs_on(rule, _d("2026-10-05")) is True