301 lines
11 KiB
Python
301 lines
11 KiB
Python
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"""
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Tests for the following offsets:
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- QuarterBegin
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- QuarterEnd
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"""
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from __future__ import annotations
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from datetime import datetime
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import pytest
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from pandas.tests.tseries.offsets.common import (
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Base,
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assert_is_on_offset,
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assert_offset_equal,
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)
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from pandas.tseries.offsets import (
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QuarterBegin,
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QuarterEnd,
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)
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def test_quarterly_dont_normalize():
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date = datetime(2012, 3, 31, 5, 30)
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offsets = (QuarterBegin, QuarterEnd)
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for klass in offsets:
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result = date + klass()
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assert result.time() == date.time()
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@pytest.mark.parametrize("offset", [QuarterBegin(), QuarterEnd()])
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def test_on_offset(offset):
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dates = [
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datetime(2016, m, d)
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for m in [10, 11, 12]
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for d in [1, 2, 3, 28, 29, 30, 31]
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if not (m == 11 and d == 31)
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]
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for date in dates:
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res = offset.is_on_offset(date)
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slow_version = date == (date + offset) - offset
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assert res == slow_version
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class TestQuarterBegin(Base):
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def test_repr(self):
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expected = "<QuarterBegin: startingMonth=3>"
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assert repr(QuarterBegin()) == expected
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expected = "<QuarterBegin: startingMonth=3>"
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assert repr(QuarterBegin(startingMonth=3)) == expected
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expected = "<QuarterBegin: startingMonth=1>"
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assert repr(QuarterBegin(startingMonth=1)) == expected
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def test_is_anchored(self):
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assert QuarterBegin(startingMonth=1).is_anchored()
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assert QuarterBegin().is_anchored()
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assert not QuarterBegin(2, startingMonth=1).is_anchored()
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def test_offset_corner_case(self):
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# corner
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offset = QuarterBegin(n=-1, startingMonth=1)
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assert datetime(2010, 2, 1) + offset == datetime(2010, 1, 1)
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offset_cases = []
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offset_cases.append(
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(
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QuarterBegin(startingMonth=1),
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{
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datetime(2007, 12, 1): datetime(2008, 1, 1),
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datetime(2008, 1, 1): datetime(2008, 4, 1),
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datetime(2008, 2, 15): datetime(2008, 4, 1),
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datetime(2008, 2, 29): datetime(2008, 4, 1),
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datetime(2008, 3, 15): datetime(2008, 4, 1),
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datetime(2008, 3, 31): datetime(2008, 4, 1),
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datetime(2008, 4, 15): datetime(2008, 7, 1),
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datetime(2008, 4, 1): datetime(2008, 7, 1),
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},
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)
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)
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offset_cases.append(
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(
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QuarterBegin(startingMonth=2),
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{
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datetime(2008, 1, 1): datetime(2008, 2, 1),
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datetime(2008, 1, 31): datetime(2008, 2, 1),
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datetime(2008, 1, 15): datetime(2008, 2, 1),
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datetime(2008, 2, 29): datetime(2008, 5, 1),
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datetime(2008, 3, 15): datetime(2008, 5, 1),
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datetime(2008, 3, 31): datetime(2008, 5, 1),
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datetime(2008, 4, 15): datetime(2008, 5, 1),
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datetime(2008, 4, 30): datetime(2008, 5, 1),
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},
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)
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)
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offset_cases.append(
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(
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QuarterBegin(startingMonth=1, n=0),
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{
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datetime(2008, 1, 1): datetime(2008, 1, 1),
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datetime(2008, 12, 1): datetime(2009, 1, 1),
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datetime(2008, 1, 1): datetime(2008, 1, 1),
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datetime(2008, 2, 15): datetime(2008, 4, 1),
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datetime(2008, 2, 29): datetime(2008, 4, 1),
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datetime(2008, 3, 15): datetime(2008, 4, 1),
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datetime(2008, 3, 31): datetime(2008, 4, 1),
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datetime(2008, 4, 15): datetime(2008, 7, 1),
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datetime(2008, 4, 30): datetime(2008, 7, 1),
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},
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)
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)
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offset_cases.append(
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(
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QuarterBegin(startingMonth=1, n=-1),
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{
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datetime(2008, 1, 1): datetime(2007, 10, 1),
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datetime(2008, 1, 31): datetime(2008, 1, 1),
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datetime(2008, 2, 15): datetime(2008, 1, 1),
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datetime(2008, 2, 29): datetime(2008, 1, 1),
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datetime(2008, 3, 15): datetime(2008, 1, 1),
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datetime(2008, 3, 31): datetime(2008, 1, 1),
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datetime(2008, 4, 15): datetime(2008, 4, 1),
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datetime(2008, 4, 30): datetime(2008, 4, 1),
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datetime(2008, 7, 1): datetime(2008, 4, 1),
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},
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)
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)
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offset_cases.append(
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(
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QuarterBegin(startingMonth=1, n=2),
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{
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datetime(2008, 1, 1): datetime(2008, 7, 1),
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datetime(2008, 2, 15): datetime(2008, 7, 1),
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datetime(2008, 2, 29): datetime(2008, 7, 1),
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datetime(2008, 3, 15): datetime(2008, 7, 1),
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datetime(2008, 3, 31): datetime(2008, 7, 1),
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datetime(2008, 4, 15): datetime(2008, 10, 1),
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datetime(2008, 4, 1): datetime(2008, 10, 1),
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},
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)
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)
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@pytest.mark.parametrize("case", offset_cases)
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def test_offset(self, case):
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offset, cases = case
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for base, expected in cases.items():
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assert_offset_equal(offset, base, expected)
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class TestQuarterEnd(Base):
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_offset: type[QuarterEnd] = QuarterEnd
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def test_repr(self):
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expected = "<QuarterEnd: startingMonth=3>"
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assert repr(QuarterEnd()) == expected
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expected = "<QuarterEnd: startingMonth=3>"
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assert repr(QuarterEnd(startingMonth=3)) == expected
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expected = "<QuarterEnd: startingMonth=1>"
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assert repr(QuarterEnd(startingMonth=1)) == expected
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def test_is_anchored(self):
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assert QuarterEnd(startingMonth=1).is_anchored()
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assert QuarterEnd().is_anchored()
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assert not QuarterEnd(2, startingMonth=1).is_anchored()
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def test_offset_corner_case(self):
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# corner
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offset = QuarterEnd(n=-1, startingMonth=1)
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assert datetime(2010, 2, 1) + offset == datetime(2010, 1, 31)
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offset_cases = []
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offset_cases.append(
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(
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QuarterEnd(startingMonth=1),
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{
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datetime(2008, 1, 1): datetime(2008, 1, 31),
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datetime(2008, 1, 31): datetime(2008, 4, 30),
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datetime(2008, 2, 15): datetime(2008, 4, 30),
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datetime(2008, 2, 29): datetime(2008, 4, 30),
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datetime(2008, 3, 15): datetime(2008, 4, 30),
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datetime(2008, 3, 31): datetime(2008, 4, 30),
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datetime(2008, 4, 15): datetime(2008, 4, 30),
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datetime(2008, 4, 30): datetime(2008, 7, 31),
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},
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)
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)
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offset_cases.append(
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(
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QuarterEnd(startingMonth=2),
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{
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datetime(2008, 1, 1): datetime(2008, 2, 29),
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datetime(2008, 1, 31): datetime(2008, 2, 29),
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datetime(2008, 2, 15): datetime(2008, 2, 29),
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datetime(2008, 2, 29): datetime(2008, 5, 31),
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datetime(2008, 3, 15): datetime(2008, 5, 31),
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datetime(2008, 3, 31): datetime(2008, 5, 31),
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datetime(2008, 4, 15): datetime(2008, 5, 31),
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datetime(2008, 4, 30): datetime(2008, 5, 31),
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},
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)
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)
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offset_cases.append(
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(
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QuarterEnd(startingMonth=1, n=0),
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{
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datetime(2008, 1, 1): datetime(2008, 1, 31),
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datetime(2008, 1, 31): datetime(2008, 1, 31),
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datetime(2008, 2, 15): datetime(2008, 4, 30),
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datetime(2008, 2, 29): datetime(2008, 4, 30),
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datetime(2008, 3, 15): datetime(2008, 4, 30),
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datetime(2008, 3, 31): datetime(2008, 4, 30),
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datetime(2008, 4, 15): datetime(2008, 4, 30),
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datetime(2008, 4, 30): datetime(2008, 4, 30),
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},
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)
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)
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offset_cases.append(
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(
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QuarterEnd(startingMonth=1, n=-1),
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{
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datetime(2008, 1, 1): datetime(2007, 10, 31),
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datetime(2008, 1, 31): datetime(2007, 10, 31),
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datetime(2008, 2, 15): datetime(2008, 1, 31),
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datetime(2008, 2, 29): datetime(2008, 1, 31),
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datetime(2008, 3, 15): datetime(2008, 1, 31),
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datetime(2008, 3, 31): datetime(2008, 1, 31),
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datetime(2008, 4, 15): datetime(2008, 1, 31),
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datetime(2008, 4, 30): datetime(2008, 1, 31),
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datetime(2008, 7, 1): datetime(2008, 4, 30),
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},
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)
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)
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offset_cases.append(
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(
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QuarterEnd(startingMonth=1, n=2),
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{
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datetime(2008, 1, 31): datetime(2008, 7, 31),
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datetime(2008, 2, 15): datetime(2008, 7, 31),
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datetime(2008, 2, 29): datetime(2008, 7, 31),
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datetime(2008, 3, 15): datetime(2008, 7, 31),
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datetime(2008, 3, 31): datetime(2008, 7, 31),
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datetime(2008, 4, 15): datetime(2008, 7, 31),
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datetime(2008, 4, 30): datetime(2008, 10, 31),
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},
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)
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)
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@pytest.mark.parametrize("case", offset_cases)
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def test_offset(self, case):
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offset, cases = case
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for base, expected in cases.items():
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assert_offset_equal(offset, base, expected)
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on_offset_cases = [
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(QuarterEnd(1, startingMonth=1), datetime(2008, 1, 31), True),
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(QuarterEnd(1, startingMonth=1), datetime(2007, 12, 31), False),
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(QuarterEnd(1, startingMonth=1), datetime(2008, 2, 29), False),
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(QuarterEnd(1, startingMonth=1), datetime(2007, 3, 30), False),
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(QuarterEnd(1, startingMonth=1), datetime(2007, 3, 31), False),
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(QuarterEnd(1, startingMonth=1), datetime(2008, 4, 30), True),
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(QuarterEnd(1, startingMonth=1), datetime(2008, 5, 30), False),
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(QuarterEnd(1, startingMonth=1), datetime(2008, 5, 31), False),
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(QuarterEnd(1, startingMonth=1), datetime(2007, 6, 29), False),
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(QuarterEnd(1, startingMonth=1), datetime(2007, 6, 30), False),
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(QuarterEnd(1, startingMonth=2), datetime(2008, 1, 31), False),
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(QuarterEnd(1, startingMonth=2), datetime(2007, 12, 31), False),
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(QuarterEnd(1, startingMonth=2), datetime(2008, 2, 29), True),
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(QuarterEnd(1, startingMonth=2), datetime(2007, 3, 30), False),
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(QuarterEnd(1, startingMonth=2), datetime(2007, 3, 31), False),
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(QuarterEnd(1, startingMonth=2), datetime(2008, 4, 30), False),
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(QuarterEnd(1, startingMonth=2), datetime(2008, 5, 30), False),
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(QuarterEnd(1, startingMonth=2), datetime(2008, 5, 31), True),
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(QuarterEnd(1, startingMonth=2), datetime(2007, 6, 29), False),
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(QuarterEnd(1, startingMonth=2), datetime(2007, 6, 30), False),
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(QuarterEnd(1, startingMonth=3), datetime(2008, 1, 31), False),
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(QuarterEnd(1, startingMonth=3), datetime(2007, 12, 31), True),
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(QuarterEnd(1, startingMonth=3), datetime(2008, 2, 29), False),
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(QuarterEnd(1, startingMonth=3), datetime(2007, 3, 30), False),
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(QuarterEnd(1, startingMonth=3), datetime(2007, 3, 31), True),
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(QuarterEnd(1, startingMonth=3), datetime(2008, 4, 30), False),
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(QuarterEnd(1, startingMonth=3), datetime(2008, 5, 30), False),
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(QuarterEnd(1, startingMonth=3), datetime(2008, 5, 31), False),
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(QuarterEnd(1, startingMonth=3), datetime(2007, 6, 29), False),
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(QuarterEnd(1, startingMonth=3), datetime(2007, 6, 30), True),
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]
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@pytest.mark.parametrize("case", on_offset_cases)
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def test_is_on_offset(self, case):
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offset, dt, expected = case
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assert_is_on_offset(offset, dt, expected)
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