You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
83 lines
2.6 KiB
Python
83 lines
2.6 KiB
Python
import numpy as np
|
|
import pytest
|
|
|
|
import pandas as pd
|
|
import pandas._testing as tm
|
|
|
|
pytestmark = pytest.mark.filterwarnings(
|
|
"ignore:Passing a BlockManager|Passing a SingleBlockManager:DeprecationWarning"
|
|
)
|
|
|
|
|
|
class TestSeriesSubclassing:
|
|
@pytest.mark.parametrize(
|
|
"idx_method, indexer, exp_data, exp_idx",
|
|
[
|
|
["loc", ["a", "b"], [1, 2], "ab"],
|
|
["iloc", [2, 3], [3, 4], "cd"],
|
|
],
|
|
)
|
|
def test_indexing_sliced(self, idx_method, indexer, exp_data, exp_idx):
|
|
s = tm.SubclassedSeries([1, 2, 3, 4], index=list("abcd"))
|
|
res = getattr(s, idx_method)[indexer]
|
|
exp = tm.SubclassedSeries(exp_data, index=list(exp_idx))
|
|
tm.assert_series_equal(res, exp)
|
|
|
|
def test_to_frame(self):
|
|
s = tm.SubclassedSeries([1, 2, 3, 4], index=list("abcd"), name="xxx")
|
|
res = s.to_frame()
|
|
exp = tm.SubclassedDataFrame({"xxx": [1, 2, 3, 4]}, index=list("abcd"))
|
|
tm.assert_frame_equal(res, exp)
|
|
|
|
def test_subclass_unstack(self):
|
|
# GH 15564
|
|
s = tm.SubclassedSeries([1, 2, 3, 4], index=[list("aabb"), list("xyxy")])
|
|
|
|
res = s.unstack()
|
|
exp = tm.SubclassedDataFrame({"x": [1, 3], "y": [2, 4]}, index=["a", "b"])
|
|
|
|
tm.assert_frame_equal(res, exp)
|
|
|
|
def test_subclass_empty_repr(self):
|
|
sub_series = tm.SubclassedSeries()
|
|
assert "SubclassedSeries" in repr(sub_series)
|
|
|
|
def test_asof(self):
|
|
N = 3
|
|
rng = pd.date_range("1/1/1990", periods=N, freq="53s")
|
|
s = tm.SubclassedSeries({"A": [np.nan, np.nan, np.nan]}, index=rng)
|
|
|
|
result = s.asof(rng[-2:])
|
|
assert isinstance(result, tm.SubclassedSeries)
|
|
|
|
def test_explode(self):
|
|
s = tm.SubclassedSeries([[1, 2, 3], "foo", [], [3, 4]])
|
|
result = s.explode()
|
|
assert isinstance(result, tm.SubclassedSeries)
|
|
|
|
def test_equals(self):
|
|
# https://github.com/pandas-dev/pandas/pull/34402
|
|
# allow subclass in both directions
|
|
s1 = pd.Series([1, 2, 3])
|
|
s2 = tm.SubclassedSeries([1, 2, 3])
|
|
assert s1.equals(s2)
|
|
assert s2.equals(s1)
|
|
|
|
|
|
class SubclassedSeries(pd.Series):
|
|
@property
|
|
def _constructor(self):
|
|
def _new(*args, **kwargs):
|
|
# some constructor logic that accesses the Series' name
|
|
if self.name == "test":
|
|
return pd.Series(*args, **kwargs)
|
|
return SubclassedSeries(*args, **kwargs)
|
|
|
|
return _new
|
|
|
|
|
|
def test_constructor_from_dict():
|
|
# https://github.com/pandas-dev/pandas/issues/52445
|
|
result = SubclassedSeries({"a": 1, "b": 2, "c": 3})
|
|
assert isinstance(result, SubclassedSeries)
|