327 lines
9.8 KiB
Python
327 lines
9.8 KiB
Python
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"""
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Tests for the following offsets:
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- YearBegin
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- YearEnd
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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._libs.tslibs.offsets import YearOffset
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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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YearBegin,
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YearEnd,
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)
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class TestYearBegin(Base):
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_offset: type[YearOffset] = YearBegin
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def test_misspecified(self):
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with pytest.raises(ValueError, match="Month must go from 1 to 12"):
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YearBegin(month=13)
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offset_cases = []
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offset_cases.append(
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(
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YearBegin(),
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{
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datetime(2008, 1, 1): datetime(2009, 1, 1),
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datetime(2008, 6, 30): datetime(2009, 1, 1),
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datetime(2008, 12, 31): datetime(2009, 1, 1),
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datetime(2005, 12, 30): datetime(2006, 1, 1),
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datetime(2005, 12, 31): datetime(2006, 1, 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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YearBegin(0),
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{
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datetime(2008, 1, 1): datetime(2008, 1, 1),
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datetime(2008, 6, 30): datetime(2009, 1, 1),
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datetime(2008, 12, 31): datetime(2009, 1, 1),
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datetime(2005, 12, 30): datetime(2006, 1, 1),
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datetime(2005, 12, 31): datetime(2006, 1, 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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YearBegin(3),
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{
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datetime(2008, 1, 1): datetime(2011, 1, 1),
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datetime(2008, 6, 30): datetime(2011, 1, 1),
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datetime(2008, 12, 31): datetime(2011, 1, 1),
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datetime(2005, 12, 30): datetime(2008, 1, 1),
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datetime(2005, 12, 31): datetime(2008, 1, 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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YearBegin(-1),
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{
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datetime(2007, 1, 1): datetime(2006, 1, 1),
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datetime(2007, 1, 15): datetime(2007, 1, 1),
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datetime(2008, 6, 30): datetime(2008, 1, 1),
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datetime(2008, 12, 31): datetime(2008, 1, 1),
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datetime(2006, 12, 29): datetime(2006, 1, 1),
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datetime(2006, 12, 30): datetime(2006, 1, 1),
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datetime(2007, 1, 1): datetime(2006, 1, 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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YearBegin(-2),
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{
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datetime(2007, 1, 1): datetime(2005, 1, 1),
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datetime(2008, 6, 30): datetime(2007, 1, 1),
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datetime(2008, 12, 31): datetime(2007, 1, 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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YearBegin(month=4),
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{
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datetime(2007, 4, 1): datetime(2008, 4, 1),
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datetime(2007, 4, 15): datetime(2008, 4, 1),
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datetime(2007, 3, 1): datetime(2007, 4, 1),
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datetime(2007, 12, 15): datetime(2008, 4, 1),
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datetime(2012, 1, 31): datetime(2012, 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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YearBegin(0, month=4),
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{
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datetime(2007, 4, 1): datetime(2007, 4, 1),
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datetime(2007, 3, 1): datetime(2007, 4, 1),
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datetime(2007, 12, 15): datetime(2008, 4, 1),
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datetime(2012, 1, 31): datetime(2012, 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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YearBegin(4, month=4),
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{
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datetime(2007, 4, 1): datetime(2011, 4, 1),
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datetime(2007, 4, 15): datetime(2011, 4, 1),
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datetime(2007, 3, 1): datetime(2010, 4, 1),
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datetime(2007, 12, 15): datetime(2011, 4, 1),
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datetime(2012, 1, 31): datetime(2015, 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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YearBegin(-1, month=4),
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{
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datetime(2007, 4, 1): datetime(2006, 4, 1),
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datetime(2007, 3, 1): datetime(2006, 4, 1),
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datetime(2007, 12, 15): datetime(2007, 4, 1),
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datetime(2012, 1, 31): datetime(2011, 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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YearBegin(-3, month=4),
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{
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datetime(2007, 4, 1): datetime(2004, 4, 1),
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datetime(2007, 3, 1): datetime(2004, 4, 1),
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datetime(2007, 12, 15): datetime(2005, 4, 1),
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datetime(2012, 1, 31): datetime(2009, 4, 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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on_offset_cases = [
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(YearBegin(), datetime(2007, 1, 3), False),
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(YearBegin(), datetime(2008, 1, 1), True),
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(YearBegin(), datetime(2006, 12, 31), False),
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(YearBegin(), datetime(2006, 1, 2), False),
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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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class TestYearEnd(Base):
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_offset: type[YearOffset] = YearEnd
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def test_misspecified(self):
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with pytest.raises(ValueError, match="Month must go from 1 to 12"):
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YearEnd(month=13)
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offset_cases = []
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offset_cases.append(
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(
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YearEnd(),
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{
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datetime(2008, 1, 1): datetime(2008, 12, 31),
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datetime(2008, 6, 30): datetime(2008, 12, 31),
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datetime(2008, 12, 31): datetime(2009, 12, 31),
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datetime(2005, 12, 30): datetime(2005, 12, 31),
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datetime(2005, 12, 31): datetime(2006, 12, 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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YearEnd(0),
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{
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datetime(2008, 1, 1): datetime(2008, 12, 31),
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datetime(2008, 6, 30): datetime(2008, 12, 31),
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datetime(2008, 12, 31): datetime(2008, 12, 31),
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datetime(2005, 12, 30): datetime(2005, 12, 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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YearEnd(-1),
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{
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datetime(2007, 1, 1): datetime(2006, 12, 31),
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datetime(2008, 6, 30): datetime(2007, 12, 31),
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datetime(2008, 12, 31): datetime(2007, 12, 31),
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datetime(2006, 12, 29): datetime(2005, 12, 31),
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datetime(2006, 12, 30): datetime(2005, 12, 31),
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datetime(2007, 1, 1): datetime(2006, 12, 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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YearEnd(-2),
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{
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datetime(2007, 1, 1): datetime(2005, 12, 31),
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datetime(2008, 6, 30): datetime(2006, 12, 31),
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datetime(2008, 12, 31): datetime(2006, 12, 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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(YearEnd(), datetime(2007, 12, 31), True),
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(YearEnd(), datetime(2008, 1, 1), False),
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(YearEnd(), datetime(2006, 12, 31), True),
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(YearEnd(), datetime(2006, 12, 29), False),
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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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class TestYearEndDiffMonth(Base):
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offset_cases = []
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offset_cases.append(
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(
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YearEnd(month=3),
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{
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datetime(2008, 1, 1): datetime(2008, 3, 31),
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datetime(2008, 2, 15): datetime(2008, 3, 31),
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datetime(2008, 3, 31): datetime(2009, 3, 31),
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datetime(2008, 3, 30): datetime(2008, 3, 31),
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datetime(2005, 3, 31): datetime(2006, 3, 31),
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datetime(2006, 7, 30): datetime(2007, 3, 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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YearEnd(0, month=3),
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{
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datetime(2008, 1, 1): datetime(2008, 3, 31),
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datetime(2008, 2, 28): datetime(2008, 3, 31),
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datetime(2008, 3, 31): datetime(2008, 3, 31),
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datetime(2005, 3, 30): datetime(2005, 3, 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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YearEnd(-1, month=3),
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{
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datetime(2007, 1, 1): datetime(2006, 3, 31),
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datetime(2008, 2, 28): datetime(2007, 3, 31),
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datetime(2008, 3, 31): datetime(2007, 3, 31),
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datetime(2006, 3, 29): datetime(2005, 3, 31),
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datetime(2006, 3, 30): datetime(2005, 3, 31),
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datetime(2007, 3, 1): datetime(2006, 3, 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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YearEnd(-2, month=3),
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{
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datetime(2007, 1, 1): datetime(2005, 3, 31),
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datetime(2008, 6, 30): datetime(2007, 3, 31),
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datetime(2008, 3, 31): datetime(2006, 3, 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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(YearEnd(month=3), datetime(2007, 3, 31), True),
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(YearEnd(month=3), datetime(2008, 1, 1), False),
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(YearEnd(month=3), datetime(2006, 3, 31), True),
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(YearEnd(month=3), datetime(2006, 3, 29), False),
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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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