CLN: tseries/offsets base tests (#49017)

Author: mroeschke

pandas/tests/tseries/offsets/common.py

@@ -5,25 +5,16 @@
 
 from datetime import datetime
 
-from dateutil.tz.tz import tzlocal
-import pytest
-
-from pandas._libs.tslibs import (
-    OutOfBoundsDatetime,
-    Timestamp,
-)
+from pandas._libs.tslibs import Timestamp
 from pandas._libs.tslibs.offsets import (
     FY5253,
     BaseOffset,
-    BusinessHour,
-    CustomBusinessHour,
     DateOffset,
     FY5253Quarter,
     LastWeekOfMonth,
     Week,
     WeekOfMonth,
 )
-from pandas.compat import IS64
 
 
 def assert_offset_equal(offset, base, expected):
@@ -63,15 +54,6 @@ class Base:
     _offset: type[BaseOffset] | None = None
     d = Timestamp(datetime(2008, 1, 2))
 
-    timezones = [
-        None,
-        "UTC",
-        "Asia/Tokyo",
-        "US/Eastern",
-        "dateutil/Asia/Tokyo",
-        "dateutil/US/Pacific",
-    ]
-
     def _get_offset(self, klass, value=1, normalize=False):
         # create instance from offset class
         if klass is FY5253:
@@ -102,106 +84,3 @@ def _get_offset(self, klass, value=1, normalize=False):
         else:
             klass = klass(value, normalize=normalize)
         return klass
-
-    def test_apply_out_of_range(self, request, tz_naive_fixture):
-        tz = tz_naive_fixture
-        if self._offset is None:
-            return
-
-        # try to create an out-of-bounds result timestamp; if we can't create
-        # the offset skip
-        try:
-            if self._offset in (BusinessHour, CustomBusinessHour):
-                # Using 10000 in BusinessHour fails in tz check because of DST
-                # difference
-                offset = self._get_offset(self._offset, value=100000)
-            else:
-                offset = self._get_offset(self._offset, value=10000)
-
-            result = Timestamp("20080101") + offset
-            assert isinstance(result, datetime)
-            assert result.tzinfo is None
-
-            # Check tz is preserved
-            t = Timestamp("20080101", tz=tz)
-            result = t + offset
-            assert isinstance(result, datetime)
-
-            if isinstance(tz, tzlocal) and not IS64:
-                # If we hit OutOfBoundsDatetime on non-64 bit machines
-                # we'll drop out of the try clause before the next test
-                request.node.add_marker(
-                    pytest.mark.xfail(reason="OverflowError inside tzlocal past 2038")
-                )
-            assert t.tzinfo == result.tzinfo
-
-        except OutOfBoundsDatetime:
-            pass
-        except (ValueError, KeyError):
-            # we are creating an invalid offset
-            # so ignore
-            pass
-
-    def test_offsets_compare_equal(self):
-        # root cause of GH#456: __ne__ was not implemented
-        if self._offset is None:
-            return
-        offset1 = self._offset()
-        offset2 = self._offset()
-        assert not offset1 != offset2
-        assert offset1 == offset2
-
-    def test_rsub(self):
-        if self._offset is None or not hasattr(self, "offset2"):
-            # i.e. skip for TestCommon and YQM subclasses that do not have
-            # offset2 attr
-            return
-        assert self.d - self.offset2 == (-self.offset2)._apply(self.d)
-
-    def test_radd(self):
-        if self._offset is None or not hasattr(self, "offset2"):
-            # i.e. skip for TestCommon and YQM subclasses that do not have
-            # offset2 attr
-            return
-        assert self.d + self.offset2 == self.offset2 + self.d
-
-    def test_sub(self):
-        if self._offset is None or not hasattr(self, "offset2"):
-            # i.e. skip for TestCommon and YQM subclasses that do not have
-            # offset2 attr
-            return
-        off = self.offset2
-        msg = "Cannot subtract datetime from offset"
-        with pytest.raises(TypeError, match=msg):
-            off - self.d
-
-        assert 2 * off - off == off
-        assert self.d - self.offset2 == self.d + self._offset(-2)
-        assert self.d - self.offset2 == self.d - (2 * off - off)
-
-    def testMult1(self):
-        if self._offset is None or not hasattr(self, "offset1"):
-            # i.e. skip for TestCommon and YQM subclasses that do not have
-            # offset1 attr
-            return
-        assert self.d + 10 * self.offset1 == self.d + self._offset(10)
-        assert self.d + 5 * self.offset1 == self.d + self._offset(5)
-
-    def testMult2(self):
-        if self._offset is None:
-            return
-        assert self.d + (-5 * self._offset(-10)) == self.d + self._offset(50)
-        assert self.d + (-3 * self._offset(-2)) == self.d + self._offset(6)
-
-    def test_compare_str(self):
-        # GH#23524
-        # comparing to strings that cannot be cast to DateOffsets should
-        #  not raise for __eq__ or __ne__
-        if self._offset is None:
-            return
-        off = self._get_offset(self._offset)
-
-        assert not off == "infer"
-        assert off != "foo"
-        # Note: inequalities are only implemented for Tick subclasses;
-        #  tests for this are in test_ticks