def test_NamedDatesErrors():
my_date = NamedDate("MyDate", 1, 1)
with pytest.raises(NamedDatesKeyError):
NamedDates([my_date, my_date])
my_dates = NamedDates([my_date])
with pytest.raises(NamedDatesKeyError):
my_dates.add(my_date)
with pytest.raises(NamedDatesKeyError):
my_dates["uhoh"]
def test_NamedDates():
my_date = NamedDate("MyDate", 1, 1)
my_dates = NamedDates()
assert len(my_dates) == 0
my_dates.add(my_date)
assert len(my_dates) == 1
my_dates.add(NamedDate("Martin Luther King, Jr. Day", 1, 0, nth=3,
aliases=["Martin Luther King Jr. Day", "MLK Day"]))
assert len(my_dates) == 4
assert my_dates.observes(date(2015, 1, 19))
assert my_dates.observes(date(2015, 1, 1))
assert my_dates.observes(date(2005, 1, 1))
presidents_day = date(2015, 2, 16)
assert not my_dates.observes(presidents_day)
with pytest.raises(NamedDatesKeyError):
my_dates["Washington's Birthday"]
my_dates.add(NamedDate("Washington's Birthday", 2, 0, nth=3,
aliases=["President's Day"]))
assert my_dates.observes(presidents_day)
assert my_dates["Washington's Birthday"]
assert my_dates["President's Day"].falls_on(presidents_day)
assert set(my_dates.names) == {"MyDate",
"Washington's Birthday",
"President's Day",
"Martin Luther King, Jr. Day",
"Martin Luther King Jr. Day",
"MLK Day"}