def test_slice_bounds_empty(self):
# GH 14354
empty_idx = DatetimeIndex(freq='1H', periods=0, end='2015')
right = empty_idx._maybe_cast_slice_bound('2015-01-02', 'right', 'loc')
exp = Timestamp('2015-01-02 23:59:59.999999999')
assert right == exp
left = empty_idx._maybe_cast_slice_bound('2015-01-02', 'left', 'loc')
exp = Timestamp('2015-01-02 00:00:00')
assert left == exp
def test_maybe_cast_slice_duplicate_monotonic(self):
# https://github.com/pandas-dev/pandas/issues/16515
idx = DatetimeIndex(["2017", "2017"])
result = idx._maybe_cast_slice_bound("2017-01-01", "left", "loc")
expected = Timestamp("2017-01-01")
assert result == expected
