392 lines
11 KiB
Python
392 lines
11 KiB
Python
"""
|
|
Tests for offsets.Tick and subclasses
|
|
"""
|
|
from datetime import (
|
|
datetime,
|
|
timedelta,
|
|
)
|
|
|
|
from hypothesis import (
|
|
assume,
|
|
example,
|
|
given,
|
|
)
|
|
import numpy as np
|
|
import pytest
|
|
|
|
from pandas._libs.tslibs.offsets import delta_to_tick
|
|
|
|
from pandas import (
|
|
Timedelta,
|
|
Timestamp,
|
|
)
|
|
import pandas._testing as tm
|
|
from pandas._testing._hypothesis import INT_NEG_999_TO_POS_999
|
|
from pandas.tests.tseries.offsets.common import assert_offset_equal
|
|
|
|
from pandas.tseries import offsets
|
|
from pandas.tseries.offsets import (
|
|
Hour,
|
|
Micro,
|
|
Milli,
|
|
Minute,
|
|
Nano,
|
|
Second,
|
|
)
|
|
|
|
# ---------------------------------------------------------------------
|
|
# Test Helpers
|
|
|
|
tick_classes = [Hour, Minute, Second, Milli, Micro, Nano]
|
|
|
|
|
|
# ---------------------------------------------------------------------
|
|
|
|
|
|
def test_apply_ticks():
|
|
result = offsets.Hour(3) + offsets.Hour(4)
|
|
exp = offsets.Hour(7)
|
|
assert result == exp
|
|
|
|
|
|
def test_delta_to_tick():
|
|
delta = timedelta(3)
|
|
|
|
tick = delta_to_tick(delta)
|
|
assert tick == offsets.Day(3)
|
|
|
|
td = Timedelta(nanoseconds=5)
|
|
tick = delta_to_tick(td)
|
|
assert tick == Nano(5)
|
|
|
|
|
|
@pytest.mark.parametrize("cls", tick_classes)
|
|
@example(n=2, m=3)
|
|
@example(n=800, m=300)
|
|
@example(n=1000, m=5)
|
|
@given(n=INT_NEG_999_TO_POS_999, m=INT_NEG_999_TO_POS_999)
|
|
def test_tick_add_sub(cls, n, m):
|
|
# For all Tick subclasses and all integers n, m, we should have
|
|
# tick(n) + tick(m) == tick(n+m)
|
|
# tick(n) - tick(m) == tick(n-m)
|
|
left = cls(n)
|
|
right = cls(m)
|
|
expected = cls(n + m)
|
|
|
|
assert left + right == expected
|
|
|
|
expected = cls(n - m)
|
|
assert left - right == expected
|
|
|
|
|
|
@pytest.mark.arm_slow
|
|
@pytest.mark.parametrize("cls", tick_classes)
|
|
@example(n=2, m=3)
|
|
@given(n=INT_NEG_999_TO_POS_999, m=INT_NEG_999_TO_POS_999)
|
|
def test_tick_equality(cls, n, m):
|
|
assume(m != n)
|
|
# tick == tock iff tick.n == tock.n
|
|
left = cls(n)
|
|
right = cls(m)
|
|
assert left != right
|
|
|
|
right = cls(n)
|
|
assert left == right
|
|
assert not left != right
|
|
|
|
if n != 0:
|
|
assert cls(n) != cls(-n)
|
|
|
|
|
|
# ---------------------------------------------------------------------
|
|
|
|
|
|
def test_Hour():
|
|
assert_offset_equal(Hour(), datetime(2010, 1, 1), datetime(2010, 1, 1, 1))
|
|
assert_offset_equal(Hour(-1), datetime(2010, 1, 1, 1), datetime(2010, 1, 1))
|
|
assert_offset_equal(2 * Hour(), datetime(2010, 1, 1), datetime(2010, 1, 1, 2))
|
|
assert_offset_equal(-1 * Hour(), datetime(2010, 1, 1, 1), datetime(2010, 1, 1))
|
|
|
|
assert Hour(3) + Hour(2) == Hour(5)
|
|
assert Hour(3) - Hour(2) == Hour()
|
|
|
|
assert Hour(4) != Hour(1)
|
|
|
|
|
|
def test_Minute():
|
|
assert_offset_equal(Minute(), datetime(2010, 1, 1), datetime(2010, 1, 1, 0, 1))
|
|
assert_offset_equal(Minute(-1), datetime(2010, 1, 1, 0, 1), datetime(2010, 1, 1))
|
|
assert_offset_equal(2 * Minute(), datetime(2010, 1, 1), datetime(2010, 1, 1, 0, 2))
|
|
assert_offset_equal(-1 * Minute(), datetime(2010, 1, 1, 0, 1), datetime(2010, 1, 1))
|
|
|
|
assert Minute(3) + Minute(2) == Minute(5)
|
|
assert Minute(3) - Minute(2) == Minute()
|
|
assert Minute(5) != Minute()
|
|
|
|
|
|
def test_Second():
|
|
assert_offset_equal(Second(), datetime(2010, 1, 1), datetime(2010, 1, 1, 0, 0, 1))
|
|
assert_offset_equal(Second(-1), datetime(2010, 1, 1, 0, 0, 1), datetime(2010, 1, 1))
|
|
assert_offset_equal(
|
|
2 * Second(), datetime(2010, 1, 1), datetime(2010, 1, 1, 0, 0, 2)
|
|
)
|
|
assert_offset_equal(
|
|
-1 * Second(), datetime(2010, 1, 1, 0, 0, 1), datetime(2010, 1, 1)
|
|
)
|
|
|
|
assert Second(3) + Second(2) == Second(5)
|
|
assert Second(3) - Second(2) == Second()
|
|
|
|
|
|
def test_Millisecond():
|
|
assert_offset_equal(
|
|
Milli(), datetime(2010, 1, 1), datetime(2010, 1, 1, 0, 0, 0, 1000)
|
|
)
|
|
assert_offset_equal(
|
|
Milli(-1), datetime(2010, 1, 1, 0, 0, 0, 1000), datetime(2010, 1, 1)
|
|
)
|
|
assert_offset_equal(
|
|
Milli(2), datetime(2010, 1, 1), datetime(2010, 1, 1, 0, 0, 0, 2000)
|
|
)
|
|
assert_offset_equal(
|
|
2 * Milli(), datetime(2010, 1, 1), datetime(2010, 1, 1, 0, 0, 0, 2000)
|
|
)
|
|
assert_offset_equal(
|
|
-1 * Milli(), datetime(2010, 1, 1, 0, 0, 0, 1000), datetime(2010, 1, 1)
|
|
)
|
|
|
|
assert Milli(3) + Milli(2) == Milli(5)
|
|
assert Milli(3) - Milli(2) == Milli()
|
|
|
|
|
|
def test_MillisecondTimestampArithmetic():
|
|
assert_offset_equal(
|
|
Milli(), Timestamp("2010-01-01"), Timestamp("2010-01-01 00:00:00.001")
|
|
)
|
|
assert_offset_equal(
|
|
Milli(-1), Timestamp("2010-01-01 00:00:00.001"), Timestamp("2010-01-01")
|
|
)
|
|
|
|
|
|
def test_Microsecond():
|
|
assert_offset_equal(Micro(), datetime(2010, 1, 1), datetime(2010, 1, 1, 0, 0, 0, 1))
|
|
assert_offset_equal(
|
|
Micro(-1), datetime(2010, 1, 1, 0, 0, 0, 1), datetime(2010, 1, 1)
|
|
)
|
|
|
|
assert_offset_equal(
|
|
2 * Micro(), datetime(2010, 1, 1), datetime(2010, 1, 1, 0, 0, 0, 2)
|
|
)
|
|
assert_offset_equal(
|
|
-1 * Micro(), datetime(2010, 1, 1, 0, 0, 0, 1), datetime(2010, 1, 1)
|
|
)
|
|
|
|
assert Micro(3) + Micro(2) == Micro(5)
|
|
assert Micro(3) - Micro(2) == Micro()
|
|
|
|
|
|
def test_NanosecondGeneric():
|
|
timestamp = Timestamp(datetime(2010, 1, 1))
|
|
assert timestamp.nanosecond == 0
|
|
|
|
result = timestamp + Nano(10)
|
|
assert result.nanosecond == 10
|
|
|
|
reverse_result = Nano(10) + timestamp
|
|
assert reverse_result.nanosecond == 10
|
|
|
|
|
|
def test_Nanosecond():
|
|
timestamp = Timestamp(datetime(2010, 1, 1))
|
|
assert_offset_equal(Nano(), timestamp, timestamp + np.timedelta64(1, "ns"))
|
|
assert_offset_equal(Nano(-1), timestamp + np.timedelta64(1, "ns"), timestamp)
|
|
assert_offset_equal(2 * Nano(), timestamp, timestamp + np.timedelta64(2, "ns"))
|
|
assert_offset_equal(-1 * Nano(), timestamp + np.timedelta64(1, "ns"), timestamp)
|
|
|
|
assert Nano(3) + Nano(2) == Nano(5)
|
|
assert Nano(3) - Nano(2) == Nano()
|
|
|
|
# GH9284
|
|
assert Nano(1) + Nano(10) == Nano(11)
|
|
assert Nano(5) + Micro(1) == Nano(1005)
|
|
assert Micro(5) + Nano(1) == Nano(5001)
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"kls, expected",
|
|
[
|
|
(Hour, Timedelta(hours=5)),
|
|
(Minute, Timedelta(hours=2, minutes=3)),
|
|
(Second, Timedelta(hours=2, seconds=3)),
|
|
(Milli, Timedelta(hours=2, milliseconds=3)),
|
|
(Micro, Timedelta(hours=2, microseconds=3)),
|
|
(Nano, Timedelta(hours=2, nanoseconds=3)),
|
|
],
|
|
)
|
|
def test_tick_addition(kls, expected):
|
|
offset = kls(3)
|
|
td = Timedelta(hours=2)
|
|
|
|
for other in [td, td.to_pytimedelta(), td.to_timedelta64()]:
|
|
result = offset + other
|
|
assert isinstance(result, Timedelta)
|
|
assert result == expected
|
|
|
|
result = other + offset
|
|
assert isinstance(result, Timedelta)
|
|
assert result == expected
|
|
|
|
|
|
@pytest.mark.parametrize("cls", tick_classes)
|
|
def test_tick_division(cls):
|
|
off = cls(10)
|
|
|
|
assert off / cls(5) == 2
|
|
assert off / 2 == cls(5)
|
|
assert off / 2.0 == cls(5)
|
|
|
|
assert off / off.delta == 1
|
|
assert off / off.delta.to_timedelta64() == 1
|
|
|
|
assert off / Nano(1) == off.delta / Nano(1).delta
|
|
|
|
if cls is not Nano:
|
|
# A case where we end up with a smaller class
|
|
result = off / 1000
|
|
assert isinstance(result, offsets.Tick)
|
|
assert not isinstance(result, cls)
|
|
assert result.delta == off.delta / 1000
|
|
|
|
if cls._nanos_inc < Timedelta(seconds=1)._value:
|
|
# Case where we end up with a bigger class
|
|
result = off / 0.001
|
|
assert isinstance(result, offsets.Tick)
|
|
assert not isinstance(result, cls)
|
|
assert result.delta == off.delta / 0.001
|
|
|
|
|
|
def test_tick_mul_float():
|
|
off = Micro(2)
|
|
|
|
# Case where we retain type
|
|
result = off * 1.5
|
|
expected = Micro(3)
|
|
assert result == expected
|
|
assert isinstance(result, Micro)
|
|
|
|
# Case where we bump up to the next type
|
|
result = off * 1.25
|
|
expected = Nano(2500)
|
|
assert result == expected
|
|
assert isinstance(result, Nano)
|
|
|
|
|
|
@pytest.mark.parametrize("cls", tick_classes)
|
|
def test_tick_rdiv(cls):
|
|
off = cls(10)
|
|
delta = off.delta
|
|
td64 = delta.to_timedelta64()
|
|
instance__type = ".".join([cls.__module__, cls.__name__])
|
|
msg = (
|
|
"unsupported operand type\\(s\\) for \\/: 'int'|'float' and "
|
|
f"'{instance__type}'"
|
|
)
|
|
|
|
with pytest.raises(TypeError, match=msg):
|
|
2 / off
|
|
with pytest.raises(TypeError, match=msg):
|
|
2.0 / off
|
|
|
|
assert (td64 * 2.5) / off == 2.5
|
|
|
|
if cls is not Nano:
|
|
# skip pytimedelta for Nano since it gets dropped
|
|
assert (delta.to_pytimedelta() * 2) / off == 2
|
|
|
|
result = np.array([2 * td64, td64]) / off
|
|
expected = np.array([2.0, 1.0])
|
|
tm.assert_numpy_array_equal(result, expected)
|
|
|
|
|
|
@pytest.mark.parametrize("cls1", tick_classes)
|
|
@pytest.mark.parametrize("cls2", tick_classes)
|
|
def test_tick_zero(cls1, cls2):
|
|
assert cls1(0) == cls2(0)
|
|
assert cls1(0) + cls2(0) == cls1(0)
|
|
|
|
if cls1 is not Nano:
|
|
assert cls1(2) + cls2(0) == cls1(2)
|
|
|
|
if cls1 is Nano:
|
|
assert cls1(2) + Nano(0) == cls1(2)
|
|
|
|
|
|
@pytest.mark.parametrize("cls", tick_classes)
|
|
def test_tick_equalities(cls):
|
|
assert cls() == cls(1)
|
|
|
|
|
|
@pytest.mark.parametrize("cls", tick_classes)
|
|
def test_tick_offset(cls):
|
|
assert not cls().is_anchored()
|
|
|
|
|
|
@pytest.mark.parametrize("cls", tick_classes)
|
|
def test_compare_ticks(cls):
|
|
three = cls(3)
|
|
four = cls(4)
|
|
|
|
assert three < cls(4)
|
|
assert cls(3) < four
|
|
assert four > cls(3)
|
|
assert cls(4) > three
|
|
assert cls(3) == cls(3)
|
|
assert cls(3) != cls(4)
|
|
|
|
|
|
@pytest.mark.parametrize("cls", tick_classes)
|
|
def test_compare_ticks_to_strs(cls):
|
|
# GH#23524
|
|
off = cls(19)
|
|
|
|
# These tests should work with any strings, but we particularly are
|
|
# interested in "infer" as that comparison is convenient to make in
|
|
# Datetime/Timedelta Array/Index constructors
|
|
assert not off == "infer"
|
|
assert not "foo" == off
|
|
|
|
instance_type = ".".join([cls.__module__, cls.__name__])
|
|
msg = (
|
|
"'<'|'<='|'>'|'>=' not supported between instances of "
|
|
f"'str' and '{instance_type}'|'{instance_type}' and 'str'"
|
|
)
|
|
|
|
for left, right in [("infer", off), (off, "infer")]:
|
|
with pytest.raises(TypeError, match=msg):
|
|
left < right
|
|
with pytest.raises(TypeError, match=msg):
|
|
left <= right
|
|
with pytest.raises(TypeError, match=msg):
|
|
left > right
|
|
with pytest.raises(TypeError, match=msg):
|
|
left >= right
|
|
|
|
|
|
@pytest.mark.parametrize("cls", tick_classes)
|
|
def test_compare_ticks_to_timedeltalike(cls):
|
|
off = cls(19)
|
|
|
|
td = off.delta
|
|
|
|
others = [td, td.to_timedelta64()]
|
|
if cls is not Nano:
|
|
others.append(td.to_pytimedelta())
|
|
|
|
for other in others:
|
|
assert off == other
|
|
assert not off != other
|
|
assert not off < other
|
|
assert not off > other
|
|
assert off <= other
|
|
assert off >= other
|