def test_040_registered_attribute_simple_class(self, clean_Date):
Date.register_new_calendar('test_1', ExampleTestCalendar)
# Date attribute type and metaclass are correct
assert Date.test_1.__name__ == 'ExampleTestCalendarInDate'
assert type(Date.test_1).__name__ == 'ModifiedClass'
assert issubclass(Date.test_1, ExampleTestCalendar)
# constructed date type and value are is correct
d1a = Date.test_1(100, 4)
assert type(d1a) == Date
assert d1a.day_count == 697
# new attribute on date instance, type and value are correct
d1b = Date(1000)
assert isinstance(d1b.test_1, ExampleTestCalendar)
assert type(d1b.test_1).__name__ == 'ExampleTestCalendarInDate'
assert type(d1b.test_1.__class__).__name__ == 'ModifiedClass'
assert d1b.test_1.week == 143
assert d1b.test_1.day == 6
# new attribute on date instance build by another calendar, type and value are correct
d1c = Date.gregorian(100, 2, 3)
assert isinstance(d1c.test_1, ExampleTestCalendar)
assert type(d1c.test_1).__name__ == 'ExampleTestCalendarInDate'
assert type(d1c.test_1.__class__).__name__ == 'ModifiedClass'
assert d1c.test_1.week == 5171
assert d1c.test_1.day == 3
def test_040_registered_attribute_simple_class(self, clean_Date):
Date.register_new_calendar("test_1", ExampleTestCalendar)
# Date attribute type and metaclass are correct
assert Date.test_1.__name__ == "ExampleTestCalendarInDate"
assert type(Date.test_1).__name__ == "ModifiedClass"
assert issubclass(Date.test_1, ExampleTestCalendar)
# constructed date type and value are is correct
d1a = Date.test_1(100, 4)
assert type(d1a) == Date
assert d1a.day_count == 697
# new attribute on date instance, type and value are correct
d1b = Date(1000)
assert isinstance(d1b.test_1, ExampleTestCalendar)
assert type(d1b.test_1).__name__ == "ExampleTestCalendarInDate"
assert type(d1b.test_1.__class__).__name__ == "ModifiedClass"
assert d1b.test_1.week == 143
assert d1b.test_1.day == 6
# new attribute on date instance build by another calendar, type and value are correct
d1c = Date.gregorian(100, 2, 3)
assert isinstance(d1c.test_1, ExampleTestCalendar)
assert type(d1c.test_1).__name__ == "ExampleTestCalendarInDate"
assert type(d1c.test_1.__class__).__name__ == "ModifiedClass"
assert d1c.test_1.week == 5171
assert d1c.test_1.day == 3
def test_000_register_new_calendar(self, clean_Date):
assert not hasattr(Date, "test_1")
with pytest.raises(AttributeError):
Date.test_1
Date.register_new_calendar("test_1", ExampleTestCalendar)
assert hasattr(Date, "test_1")
Date.test_1
def test_000_register_new_calendar(self, clean_Date):
assert not hasattr(Date, 'test_1')
with pytest.raises(AttributeError):
Date.test_1
Date.register_new_calendar('test_1', ExampleTestCalendar)
assert hasattr(Date, 'test_1')
Date.test_1
def test_310_disallowed_operations(self):
a = Date(42)
b = Date(24)
# These operations are invalid because TimeDelta is not integer.
for value in (42.25, 41.75, -42.25, -41.75):
with pytest.raises(ValueError):
a + TimeDelta(value)
with pytest.raises(ValueError):
a - TimeDelta(value)
# Add/sub int, float, string, complex, specials and containers should be illegal
for obj in (10, 34.5, "abc", 1 + 2j, INF, NAN, {}, [], ()):
with pytest.raises(TypeError):
a + obj
with pytest.raises(TypeError):
a - obj
with pytest.raises(TypeError):
obj + a
with pytest.raises(TypeError):
obj - a
# Reverse operations
with pytest.raises(TypeError):
TimeDelta(2) - a
for obj in (1, 1.1, b):
with pytest.raises(TypeError):
a * obj
with pytest.raises(TypeError):
obj * a
with pytest.raises(TypeError):
a / obj
with pytest.raises(TypeError):
obj / a
with pytest.raises(TypeError):
a // obj
with pytest.raises(TypeError):
obj // a
with pytest.raises(TypeError):
pow(a, obj)
with pytest.raises(TypeError):
pow(obj, a)
with pytest.raises(TypeError):
a ^ obj
with pytest.raises(TypeError):
obj ^ a
with pytest.raises(TypeError):
a >> obj
with pytest.raises(TypeError):
obj >> a
with pytest.raises(TypeError):
a << obj
with pytest.raises(TypeError):
obj << a
def test_010_invalid_parameter_types(self):
"""The argument is required and must be an integer."""
# exception with no or two parameters
with pytest.raises(TypeError):
Date()
with pytest.raises(TypeError):
Date(1, 2)
# exception with non-numeric types
for par in ("1", (1,), [1], {1: 1}, (), [], {}, None):
with pytest.raises(TypeError):
Date(par)
# exception with invalid numeric types
for par in (1.0, Fraction(1, 1), Decimal(1), 1j):
with pytest.raises(TypeError):
Date(par)
def test_900_pickling(self):
for day_count in date_test_data:
d = Date(day_count)
for protocol in range(pickle.HIGHEST_PROTOCOL + 1):
pickled = pickle.dumps(d, protocol)
derived = pickle.loads(pickled)
assert d == derived
def test_330_comparison_with_invalid_types(self):
class SomeClass:
pass
d = Date(1)
# exception with non-numeric types
for par in ("1", (1,), [1], {1: 1}, (), [], {}, None, SomeClass()):
assert not (d == par)
assert d != par
with pytest.raises(TypeError):
d < par
with pytest.raises(TypeError):
d > par
with pytest.raises(TypeError):
d <= par
with pytest.raises(TypeError):
d >= par
# exception with numeric types (all invalid)
for par in (1, 1.0, Fraction(1, 1), Decimal(1), 1j, 1 + 1j, INF, NAN):
assert not (d == par)
assert d != par
with pytest.raises(TypeError):
d < par
with pytest.raises(TypeError):
d > par
with pytest.raises(TypeError):
d <= par
with pytest.raises(TypeError):
d >= par
def test_900_avoid_date_override(self):
d = Date.gregorian(1, 1, 1)
# I do not want an instance of Date created through a Gregorian to have its static methods
# One of the implementation I used had this error and I want to avoid it
with pytest.raises(AttributeError):
getattr(d, 'is_leap_year')
with pytest.raises(AttributeError):
d.is_leap_year
def test_900_avoid_date_override(self):
d = Date.gregorian(1, 1, 1)
# I do not want an instance of Date created through a Gregorian to have its static methods
# One of the implementation I used had this error and I want to avoid it
with pytest.raises(AttributeError):
getattr(d, "is_leap_year")
with pytest.raises(AttributeError):
d.is_leap_year
def test_340_hash_equality(self):
"""Date instances are immutable."""
d1 = Date(42)
d2 = Date(42)
assert hash(d1) == hash(d2)
dic = {d1: 1}
dic[d2] = 2
assert len(dic) == 1
assert dic[d1] == 2
assert dic[d2] == 2
d3 = Date(32) + TimeDelta(10)
assert hash(d1) == hash(d3)
dic[d3] = 2
assert len(dic) == 1
assert dic[d3] == 2
def test_110_get_unknown_attribute(self):
"""Date instances have one attribute."""
# I want to do this, because Date will have attributes added at runtime
# let's tests this both on class and instance
with pytest.raises(AttributeError):
Date.unknown
d = Date(1)
with pytest.raises(AttributeError):
d.unknown
def test_046_registered_attribute_class_with_static_methods(
self, clean_Date):
class ExampleTestCalendar3(ExampleTestCalendar):
@staticmethod
def is_odd(number):
return (number % 2) == 1
Date.register_new_calendar("test_3", ExampleTestCalendar3)
# Date attribute type and metaclass are correct
assert Date.test_3.__name__ == "ExampleTestCalendar3InDate"
assert type(Date.test_3).__name__ == "ModifiedClass"
assert issubclass(Date.test_3, ExampleTestCalendar)
# constructed date type and value are is correct
d3a = Date.test_3(100, 4)
assert type(d3a) == Date
assert d3a.day_count == 697
# new attribute on date instance, type and value are correct
d3b = Date(1000)
assert isinstance(d3b.test_3, ExampleTestCalendar3)
assert type(d3b.test_3).__name__ == "ExampleTestCalendar3InDate"
assert type(d3b.test_3.__class__).__name__ == "ModifiedClass"
assert d3b.test_3.week == 143
assert d3b.test_3.day == 6
# new attribute on date instance build by another calendar, type and value are correct
d3c = Date.gregorian(100, 2, 3)
assert isinstance(d3c.test_3, ExampleTestCalendar3)
assert type(d3c.test_3).__name__ == "ExampleTestCalendar3InDate"
assert type(d3c.test_3.__class__).__name__ == "ModifiedClass"
assert d3c.test_3.week == 5171
assert d3c.test_3.day == 3
# static method can be reached on the class and on all types of instance
assert Date.test_3.is_odd(3)
assert not Date.test_3.is_odd(4)
assert d3a.test_3.is_odd(3)
assert not d3a.test_3.is_odd(4)
assert d3b.test_3.is_odd(3)
assert not d3b.test_3.is_odd(4)
assert d3c.test_3.is_odd(3)
assert not d3c.test_3.is_odd(4)
def test_046_registered_attribute_class_with_static_methods(self, clean_Date):
class ExampleTestCalendar3(ExampleTestCalendar):
@staticmethod
def is_odd(number):
return (number % 2) == 1
Date.register_new_calendar('test_3', ExampleTestCalendar3)
# Date attribute type and metaclass are correct
assert Date.test_3.__name__ == 'ExampleTestCalendar3InDate'
assert type(Date.test_3).__name__ == 'ModifiedClass'
assert issubclass(Date.test_3, ExampleTestCalendar)
# constructed date type and value are is correct
d3a = Date.test_3(100, 4)
assert type(d3a) == Date
assert d3a.day_count == 697
# new attribute on date instance, type and value are correct
d3b = Date(1000)
assert isinstance(d3b.test_3, ExampleTestCalendar3)
assert type(d3b.test_3).__name__ == 'ExampleTestCalendar3InDate'
assert type(d3b.test_3.__class__).__name__ == 'ModifiedClass'
assert d3b.test_3.week == 143
assert d3b.test_3.day == 6
# new attribute on date instance build by another calendar, type and value are correct
d3c = Date.gregorian(100, 2, 3)
assert isinstance(d3c.test_3, ExampleTestCalendar3)
assert type(d3c.test_3).__name__ == 'ExampleTestCalendar3InDate'
assert type(d3c.test_3.__class__).__name__ == 'ModifiedClass'
assert d3c.test_3.week == 5171
assert d3c.test_3.day == 3
# static method can be reached on the class and on all types of instance
assert Date.test_3.is_odd(3)
assert not Date.test_3.is_odd(4)
assert d3a.test_3.is_odd(3)
assert not d3a.test_3.is_odd(4)
assert d3b.test_3.is_odd(3)
assert not d3b.test_3.is_odd(4)
assert d3c.test_3.is_odd(3)
assert not d3c.test_3.is_odd(4)
def test_500_repr(self):
import datetime2
for day_count in date_test_data:
d = Date(day_count)
date_repr = repr(d)
names, args = date_repr.split("(")
assert names.split(".") == ["datetime2", "Date"]
args = args[:-1] # drop ')'
assert int(args) == day_count
assert d == eval(repr(d))
def test_100_date_has_attributes_but_instance_not(self):
# the date class aways has a registered attribute
assert hasattr(Date, 'gregorian')
assert Date.gregorian
# an instance created with another calendar or by Date does not have
# the attribute; it is instead is reachable via the Date class
d1 = Date(4)
with pytest.raises(KeyError):
d1.__dict__['gregorian']
assert hasattr(d1, 'gregorian')
d1.gregorian
d2 = Date.iso(3, 4, 5)
with pytest.raises(KeyError):
d2.__dict__['gregorian']
assert hasattr(d2, 'gregorian')
d2.gregorian
# a Date instance created via the calendar does have the same attribute
d3 = Date.gregorian(3, 4, 5)
assert hasattr(d3, 'gregorian')
d3.gregorian
def test_100_date_has_attributes_but_instance_not(self):
# the date class aways has a registered attribute
assert hasattr(Date, "gregorian")
assert Date.gregorian
# an instance created with another calendar or by Date does not have
# the attribute; it is instead is reachable via the Date class
d1 = Date(4)
with pytest.raises(KeyError):
d1.__dict__["gregorian"]
assert hasattr(d1, "gregorian")
d1.gregorian
d2 = Date.iso(3, 4, 5)
with pytest.raises(KeyError):
d2.__dict__["gregorian"]
assert hasattr(d2, "gregorian")
d2.gregorian
# a Date instance created via the calendar does have the same attribute
d3 = Date.gregorian(3, 4, 5)
assert hasattr(d3, "gregorian")
d3.gregorian
def test_020_register_new_calendar_invalid_attribute_name(self):
with pytest.raises(ValueError):
Date.register_new_calendar("", ExampleTestCalendar)
with pytest.raises(ValueError):
Date.register_new_calendar("123new", ExampleTestCalendar)
with pytest.raises(ValueError):
Date.register_new_calendar(123, ExampleTestCalendar)
def test_020_register_new_calendar_invalid_attribute_name(self):
with pytest.raises(ValueError):
Date.register_new_calendar('', ExampleTestCalendar)
with pytest.raises(ValueError):
Date.register_new_calendar('123new', ExampleTestCalendar)
with pytest.raises(ValueError):
Date.register_new_calendar(123, ExampleTestCalendar)
def test_020_today(self):
"""Return a Date object that represents the current local date."""
# for the time being, let's use the good old datetime module :-)
import datetime
# we need to ensure that we are not testing across date change
for dummy in range(3):
today_before = datetime.date.today()
date_today = Date.today()
today_after = datetime.date.today()
if today_before == today_after:
break
assert date_today.day_count == today_before.toordinal()
def test_020_today(self):
"Return a Date object that represents the current local date."
# for the time being, let's use the good old datetime module :-)
import datetime
# we need to ensure that we are not testing across date change
for dummy in range(3):
today_before = datetime.date.today()
date_today = Date.today()
today_after = datetime.date.today()
if today_before == today_after:
break
assert date_today.day_count == today_before.toordinal()
def test_030_register_new_calendar_invalid_calendar_class(self):
class NoFromCalendar: # without from_rata_die
def __init__(self, week, day):
self.week = week
self.day = day
def to_rata_die(self):
return 7 * (self.week - 1) + self.day
with pytest.raises(TypeError):
Date.register_new_calendar("test_1", NoFromCalendar)
class NoToCalendar: # without to_rata_die
def __init__(self, week, day):
self.week = week
self.day = day
@classmethod
def from_rata_die(cls, rata_die):
return cls((rata_die - 1) // 7 + 1, (rata_die - 1) % 7 + 1)
with pytest.raises(TypeError):
Date.register_new_calendar("test_1", NoToCalendar)
def test_030_register_new_calendar_invalid_calendar_class(self):
class NoFromCalendar: # without from_rata_die
def __init__(self, week, day):
self.week = week
self.day = day
def to_rata_die(self):
return 7 * (self.week - 1) + self.day
with pytest.raises(TypeError):
Date.register_new_calendar('test_1', NoFromCalendar)
class NoToCalendar: # without to_rata_die
def __init__(self, week, day):
self.week = week
self.day = day
@classmethod
def from_rata_die(cls, rata_die):
return cls((rata_die - 1) // 7 + 1, (rata_die - 1) % 7 + 1)
with pytest.raises(TypeError):
Date.register_new_calendar('test_1', NoToCalendar)
def test_043_registered_attribute_class_with_other_constructors(
self, clean_Date):
class ExampleTestCalendar2(ExampleTestCalendar):
@classmethod
def with_thousands(cls, thousands, week, day):
return cls(1000 * thousands + week, day)
Date.register_new_calendar("test_2", ExampleTestCalendar2)
# Date attribute type and metaclass are correct
assert Date.test_2.__name__ == "ExampleTestCalendar2InDate"
assert type(Date.test_2).__name__ == "ModifiedClass"
assert issubclass(Date.test_2, ExampleTestCalendar)
# constructed date type and value are is correct
d2a = Date.test_2(100, 4)
assert type(d2a) == Date
assert d2a.day_count == 697
d2d = Date.test_2.with_thousands(2, 3, 4)
assert type(d2d) == Date
assert d2d.day_count == 14018
# new attribute on date instance, type and value are correct
d2b = Date(1000)
assert isinstance(d2b.test_2, ExampleTestCalendar2)
assert type(d2b.test_2).__name__ == "ExampleTestCalendar2InDate"
assert type(d2b.test_2.__class__).__name__ == "ModifiedClass"
assert d2b.test_2.week == 143
assert d2b.test_2.day == 6
# new attribute on date instance build by another calendar, type and value are correct
d2c = Date.gregorian(100, 2, 3)
assert isinstance(d2c.test_2, ExampleTestCalendar2)
assert type(d2c.test_2).__name__ == "ExampleTestCalendar2InDate"
assert type(d2c.test_2.__class__).__name__ == "ModifiedClass"
assert d2c.test_2.week == 5171
assert d2c.test_2.day == 3
def test_043_registered_attribute_class_with_other_constructors(self, clean_Date):
class ExampleTestCalendar2(ExampleTestCalendar):
@classmethod
def with_thousands(cls, thousands, week, day):
return cls(1000 * thousands + week, day)
Date.register_new_calendar('test_2', ExampleTestCalendar2)
# Date attribute type and metaclass are correct
assert Date.test_2.__name__ == 'ExampleTestCalendar2InDate'
assert type(Date.test_2).__name__ == 'ModifiedClass'
assert issubclass(Date.test_2, ExampleTestCalendar)
# constructed date type and value are is correct
d2a = Date.test_2(100, 4)
assert type(d2a) == Date
assert d2a.day_count == 697
d2d = Date.test_2.with_thousands(2, 3, 4)
assert type(d2d) == Date
assert d2d.day_count == 14018
# new attribute on date instance, type and value are correct
d2b = Date(1000)
assert isinstance(d2b.test_2, ExampleTestCalendar2)
assert type(d2b.test_2).__name__ == 'ExampleTestCalendar2InDate'
assert type(d2b.test_2.__class__).__name__ == 'ModifiedClass'
assert d2b.test_2.week == 143
assert d2b.test_2.day == 6
# new attribute on date instance build by another calendar, type and value are correct
d2c = Date.gregorian(100, 2, 3)
assert isinstance(d2c.test_2, ExampleTestCalendar2)
assert type(d2c.test_2).__name__ == 'ExampleTestCalendar2InDate'
assert type(d2c.test_2.__class__).__name__ == 'ModifiedClass'
assert d2c.test_2.week == 5171
assert d2c.test_2.day == 3
def test_920_subclass1(self):
# check that there is no interference from the interface mechanism and from possible additional arguments
class D(Date):
theAnswer = 42
def __init__(self, *args, **kws):
temp = kws.copy()
self.extra = temp.pop("extra")
Date.__init__(self, *args, **temp)
def newmeth(self, start):
return start + (self.day_count * 3) // 2
d1 = Date(102013)
d2 = D(102013, extra=7)
assert d2.theAnswer == 42
assert d2.extra == 7
assert d1.day_count == d2.day_count
assert d2.newmeth(-7) == (d1.day_count * 3) // 2 - 7
def test_100_write_attribute(self):
"This attribute is read-only."
d = Date(1)
with pytest.raises(AttributeError):
d.day_count = 3
def test_320_comparisons(self):
d1 = Date(42)
d2 = Date(42)
assert d1 == d2
assert d1 <= d2
assert d1 >= d2
assert not (d1 != d2)
assert not (d1 < d2)
assert not (d1 > d2)
d3 = Date(4242) # this is larger than d1
assert d1 < d3
assert d3 > d1
assert d1 <= d3
assert d3 >= d1
assert d1 != d3
assert d3 != d1
assert not (d1 == d3)
assert not (d3 == d1)
assert not (d1 > d3)
assert not (d3 < d1)
assert not (d1 >= d3)
assert not (d3 <= d1)
# Reverse comparison mechanism
class DateLike:
def __init__(self):
self.day_count = 42
def __eq__(self, other):
return self.day_count == other.day_count
def __ne__(self, other):
return self.day_count != other.day_count
def __lt__(self, other):
return self.day_count < other.day_count
def __le__(self, other):
return self.day_count <= other.day_count
def __gt__(self, other):
return self.day_count > other.day_count
def __ge__(self, other):
return self.day_count >= other.day_count
dl = DateLike()
d4 = Date(4)
d42 = Date(42)
d55 = Date(55)
assert not (d4 == dl)
assert d42 == dl
assert not (d55 == dl)
assert d4 != dl
assert not (d42 != dl)
assert d55 != dl
assert d4 < dl
assert not (d42 < dl)
assert not (d55 < dl)
assert d4 <= dl
assert d42 <= dl
assert not (d55 <= dl)
assert not (d4 > dl)
assert not (d42 > dl)
assert d55 > dl
assert not (d4 >= dl)
assert d42 >= dl
assert d55 >= dl
def test_010_register_new_calendar_existing_calendar_or_attribute(self):
with pytest.raises(AttributeError):
Date.register_new_calendar("gregorian", ExampleTestCalendar)
with pytest.raises(AttributeError):
Date.register_new_calendar("day_count", ExampleTestCalendar)
def test_350_bool(self):
"""In boolean contexts, all Date instances are considered to be true."""
for day_count in date_test_data:
assert Date(day_count)
def test_520_str(self):
for day_count in date_test_data:
d = Date(day_count)
assert int(str(d)[5:]) == day_count
def __init__(self, *args, **kws):
temp = kws.copy()
self.extra = temp.pop("extra")
Date.__init__(self, *args, **temp)
def test_000_valid_parameter_types(self):
"""The argument is required and must be an integer."""
for day_count in date_test_data:
assert Date(day_count).day_count == day_count
def test_100_write_attribute(self):
"""This attribute is read-only."""
d = Date(1)
with pytest.raises(AttributeError):
d.day_count = 3
def test_010_register_new_calendar_existing_calendar_or_attribute(self):
with pytest.raises(AttributeError):
Date.register_new_calendar('gregorian', ExampleTestCalendar)
with pytest.raises(AttributeError):
Date.register_new_calendar('day_count', ExampleTestCalendar)
def __init__(self, *args, **kws):
temp = kws.copy()
self.extra = temp.pop('extra')
Date.__init__(self, *args, **temp)
def test_300_valid_operations(self):
a = Date(0)
b = Date(-3)
c = Date(5)
zero = TimeDelta(0)
one = TimeDelta(1)
minusone = TimeDelta(-1)
# Addition between Date and TimeDelta
# test with zero, negative and positive dates
assert a + zero == Date(0)
assert a + one == Date(1)
assert a + minusone == Date(-1)
assert b + zero == Date(-3)
assert b + one == Date(-2)
assert b + minusone == Date(-4)
assert c + zero == Date(5)
assert c + one == Date(6)
assert c + minusone == Date(4)
# Reverse addition between TimeDelta and Date
# test with zero, negative and positive dates
assert zero + a == Date(0)
assert one + a == Date(1)
assert minusone + a == Date(-1)
assert zero + b == Date(-3)
assert one + b == Date(-2)
assert minusone + b == Date(-4)
assert zero + c == Date(5)
assert one + c == Date(6)
assert minusone + c == Date(4)
# subtraction between Date and TimeDelta, reverse is not defined
# test with zero, negative and positive dates
assert a - zero == Date(0)
assert a - one == Date(-1)
assert a - minusone == Date(1)
assert b - zero == Date(-3)
assert b - one == Date(-4)
assert b - minusone == Date(-2)
assert c - zero == Date(5)
assert c - one == Date(4)
assert c - minusone == Date(6)
# subtraction between two Date's, reverse is not defined
# test with zero, negative and positive dates
assert a - a == TimeDelta(0)
assert a - b == TimeDelta(3)
assert a - c == TimeDelta(-5)
assert b - a == TimeDelta(-3)
assert b - b == TimeDelta(0)
assert b - c == TimeDelta(-8)
assert c - a == TimeDelta(5)
assert c - b == TimeDelta(8)
assert c - c == TimeDelta(0)
