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

"""Tests for slack-bot parse_date — flexible date parsing."""

from freezegun import freeze_time

# All frozen to Monday 2026-06-01 (ET 08:00).
FROZEN = "2026-06-01 12:00:00"


@freeze_time(FROZEN)
def test_today(slackbot_app):
    assert slackbot_app.parse_date("today").strftime("%Y-%m-%d") == "2026-06-01"


@freeze_time(FROZEN)
def test_tomorrow(slackbot_app):
    assert slackbot_app.parse_date("tomorrow").strftime("%Y-%m-%d") == "2026-06-02"


@freeze_time(FROZEN)
def test_future_day_name(slackbot_app):
    # Friday of the same week.
    assert slackbot_app.parse_date("friday").strftime("%Y-%m-%d") == "2026-06-05"


@freeze_time(FROZEN)
def test_same_day_name_jumps_a_week(slackbot_app):
    # Monday on a Monday → next Monday, never today.
    assert slackbot_app.parse_date("monday").strftime("%Y-%m-%d") == "2026-06-08"


@freeze_time(FROZEN)
def test_iso_date(slackbot_app):
    assert slackbot_app.parse_date("2026-07-04").strftime("%Y-%m-%d") == "2026-07-04"


@freeze_time(FROZEN)
def test_month_slash_day(slackbot_app):
    assert slackbot_app.parse_date("7/4").strftime("%Y-%m-%d") == "2026-07-04"


@freeze_time(FROZEN)
def test_month_dash_day(slackbot_app):
    assert slackbot_app.parse_date("7-4").strftime("%Y-%m-%d") == "2026-07-04"


@freeze_time(FROZEN)
def test_past_month_day_wraps_to_next_year(slackbot_app):
    # Jan 1 is well in the past → assume next year.
    assert slackbot_app.parse_date("1/1").year == 2027


@freeze_time(FROZEN)
def test_case_insensitive(slackbot_app):
    assert slackbot_app.parse_date("  FRIDAY ").strftime("%Y-%m-%d") == "2026-06-05"


@freeze_time(FROZEN)
def test_invalid_returns_none(slackbot_app):
    assert slackbot_app.parse_date("notaday") is None