afterhours-shift-manager/tests/slack_bot/test_helpers.py

"""Tests for slack-bot module-level helpers."""

from freezegun import freeze_time

# Monday 2026-06-01 08:00 ET → weekday, active shift is night.
MON = "2026-06-01 12:00:00"
SAT_DATE = "2026-06-06"


class TestShiftTiming:
    def test_shift_start_weekday_night_is_5pm(self, slackbot_app):
        assert slackbot_app._shift_start("2026-06-03", "night").hour == 17

    def test_shift_start_weekend_day_is_8am(self, slackbot_app):
        assert slackbot_app._shift_start("2026-06-06", "day").hour == 8

    @freeze_time("2026-06-01 22:00:00")  # 18:00 ET
    def test_shift_started_true_after_start(self, slackbot_app):
        assert slackbot_app._shift_started("2026-06-01", "night") is True

    @freeze_time(MON)  # 08:00 ET
    def test_shift_started_false_before_start(self, slackbot_app):
        assert slackbot_app._shift_started("2026-06-01", "night") is False

    @freeze_time(MON)
    def test_within_drop_lock_for_today(self, slackbot_app):
        assert slackbot_app._within_drop_lock("2026-06-01", "night") is True

    @freeze_time(MON)  # tomorrow 17:00 is ~33h away
    def test_not_within_lock_tomorrow_morning(self, slackbot_app):
        assert slackbot_app._within_drop_lock("2026-06-02", "night") is False

    @freeze_time("2026-06-01 22:00:00")  # 18:00 ET, tomorrow 17:00 now <24h
    def test_within_lock_once_under_24h(self, slackbot_app):
        assert slackbot_app._within_drop_lock("2026-06-02", "night") is True


class TestIsToday:
    @freeze_time(MON)
    def test_true_for_today(self, slackbot_app):
        assert slackbot_app.is_today("2026-06-01") is True

    @freeze_time(MON)
    def test_false_for_other_day(self, slackbot_app):
        assert slackbot_app.is_today("2026-06-02") is False


class TestIsActiveShiftType:
    @freeze_time(MON)
    def test_weekday_active_is_night(self, slackbot_app):
        assert slackbot_app._is_active_shift_type("night") is True
        assert slackbot_app._is_active_shift_type("day") is False


class TestShiftTypeLabel:
    def test_weekday_has_no_label(self, slackbot_app):
        assert slackbot_app._shift_type_label("Wednesday", "night") == ""

    def test_weekend_day(self, slackbot_app):
        assert slackbot_app._shift_type_label("Saturday", "day") == " (Day)"

    def test_weekend_night(self, slackbot_app):
        assert slackbot_app._shift_type_label("Saturday", "night") == " (Night)"


class TestFindEmployeeShift:
    def test_weekday_night_match(self, slackbot_app, schedule, seed):
        seed.weekly("Wednesday", "114", "Alice")
        found = slackbot_app._find_employee_shift(
            schedule, "2026-06-03", "Wednesday", "114"
        )
        assert found == ("114", "Alice", "weekly", "night")

    def test_weekend_day_match(self, slackbot_app, schedule, seed):
        seed.weekly("Saturday", "200", "Alice", shift_type="day")
        found = slackbot_app._find_employee_shift(schedule, SAT_DATE, "Saturday", "200")
        assert found == ("200", "Alice", "weekly", "day")

    def test_weekend_night_match(self, slackbot_app, schedule, seed):
        seed.weekly("Saturday", "201", "Bob", shift_type="night")
        found = slackbot_app._find_employee_shift(schedule, SAT_DATE, "Saturday", "201")
        assert found == ("201", "Bob", "weekly", "night")

    def test_not_assigned_returns_none(self, slackbot_app, schedule, seed):
        seed.weekly("Wednesday", "114", "Alice")
        assert (
            slackbot_app._find_employee_shift(
                schedule, "2026-06-03", "Wednesday", "999"
            )
            is None
        )