FM / methods

/usr/local/lib64/python3.6/site-packages/pandas/tests/series/methods/

/usr/local/lib64/python3.6/site-packages/pandas/tests/series/methods

Name	Size	Mode	Actions
__pycache__/	-	0755	rm
test_align.py	5359	0644	edit dl rm
test_append.py	9600	0644	edit dl rm
test_argsort.py	2249	0644	edit dl rm
test_asfreq.py	3616	0644	edit dl rm
test_asof.py	5515	0644	edit dl rm
test_astype.py	2628	0644	edit dl rm
test_at_time.py	2629	0644	edit dl rm
test_autocorr.py	999	0644	edit dl rm
test_between.py	1197	0644	edit dl rm
test_between_time.py	5086	0644	edit dl rm
test_clip.py	3384	0644	edit dl rm
test_combine.py	627	0644	edit dl rm
test_combine_first.py	3411	0644	edit dl rm
test_compare.py	3734	0644	edit dl rm
test_convert_dtypes.py	9914	0644	edit dl rm
test_count.py	1123	0644	edit dl rm
test_cov_corr.py	5215	0644	edit dl rm
test_describe.py	4640	0644	edit dl rm
test_diff.py	2331	0644	edit dl rm
test_drop.py	2986	0644	edit dl rm
test_droplevel.py	629	0644	edit dl rm
test_drop_duplicates.py	6850	0644	edit dl rm
test_duplicated.py	996	0644	edit dl rm
test_equals.py	1295	0644	edit dl rm
test_explode.py	3538	0644	edit dl rm
test_fillna.py	6513	0644	edit dl rm
test_first_and_last.py	2042	0644	edit dl rm
test_head_tail.py	343	0644	edit dl rm
test_interpolate.py	27757	0644	edit dl rm
test_isin.py	3445	0644	edit dl rm
test_nlargest.py	7121	0644	edit dl rm
test_pct_change.py	2968	0644	edit dl rm
test_quantile.py	6810	0644	edit dl rm
test_rank.py	20287	0644	edit dl rm
test_reindex_like.py	1245	0644	edit dl rm
test_rename.py	3378	0644	edit dl rm
test_rename_axis.py	1503	0644	edit dl rm
test_replace.py	15559	0644	edit dl rm
test_reset_index.py	4636	0644	edit dl rm
test_round.py	1970	0644	edit dl rm
test_searchsorted.py	2121	0644	edit dl rm
test_shift.py	12595	0644	edit dl rm
test_sort_index.py	12277	0644	edit dl rm
test_sort_values.py	7981	0644	edit dl rm
test_to_dict.py	742	0644	edit dl rm
test_to_period.py	1755	0644	edit dl rm
test_to_timestamp.py	2616	0644	edit dl rm
test_truncate.py	5557	0644	edit dl rm
test_tz_convert.py	1008	0644	edit dl rm
test_tz_localize.py	3108	0644	edit dl rm
test_unstack.py	4208	0644	edit dl rm
test_update.py	4213	0644	edit dl rm
test_value_counts.py	8136	0644	edit dl rm
__init__.py	225	0644	edit dl rm

Edit: /usr/local/lib64/python3.6/site-packages/pandas/tests/series/methods/test_pct_change.py (2968B)

import numpy as np
import pytest

from pandas import Series, date_range
import pandas._testing as tm

class TestSeriesPctChange:
    def test_pct_change(self, datetime_series):
        rs = datetime_series.pct_change(fill_method=None)
        tm.assert_series_equal(rs, datetime_series / datetime_series.shift(1) - 1)

rs = datetime_series.pct_change(2)
        filled = datetime_series.fillna(method="pad")
        tm.assert_series_equal(rs, filled / filled.shift(2) - 1)

rs = datetime_series.pct_change(fill_method="bfill", limit=1)
        filled = datetime_series.fillna(method="bfill", limit=1)
        tm.assert_series_equal(rs, filled / filled.shift(1) - 1)

rs = datetime_series.pct_change(freq="5D")
        filled = datetime_series.fillna(method="pad")
        tm.assert_series_equal(
            rs, (filled / filled.shift(freq="5D") - 1).reindex_like(filled)
        )

def test_pct_change_with_duplicate_axis(self):
        # GH#28664
        common_idx = date_range("2019-11-14", periods=5, freq="D")
        result = Series(range(5), common_idx).pct_change(freq="B")

# the reason that the expected should be like this is documented at PR 28681
        expected = Series([np.NaN, np.inf, np.NaN, np.NaN, 3.0], common_idx)

tm.assert_series_equal(result, expected)

def test_pct_change_shift_over_nas(self):
        s = Series([1.0, 1.5, np.nan, 2.5, 3.0])

chg = s.pct_change()
        expected = Series([np.nan, 0.5, 0.0, 2.5 / 1.5 - 1, 0.2])
        tm.assert_series_equal(chg, expected)

@pytest.mark.parametrize(
        "freq, periods, fill_method, limit",
        [
            ("5B", 5, None, None),
            ("3B", 3, None, None),
            ("3B", 3, "bfill", None),
            ("7B", 7, "pad", 1),
            ("7B", 7, "bfill", 3),
            ("14B", 14, None, None),
        ],
    )
    def test_pct_change_periods_freq(
        self, freq, periods, fill_method, limit, datetime_series
    ):
        # GH#7292
        rs_freq = datetime_series.pct_change(
            freq=freq, fill_method=fill_method, limit=limit
        )
        rs_periods = datetime_series.pct_change(
            periods, fill_method=fill_method, limit=limit
        )
        tm.assert_series_equal(rs_freq, rs_periods)

empty_ts = Series(index=datetime_series.index, dtype=object)
        rs_freq = empty_ts.pct_change(freq=freq, fill_method=fill_method, limit=limit)
        rs_periods = empty_ts.pct_change(periods, fill_method=fill_method, limit=limit)
        tm.assert_series_equal(rs_freq, rs_periods)

@pytest.mark.parametrize("fill_method", ["pad", "ffill", None])
def test_pct_change_with_duplicated_indices(fill_method):
    # GH30463
    s = Series([np.nan, 1, 2, 3, 9, 18], index=["a", "b"] * 3)
    result = s.pct_change(fill_method=fill_method)
    expected = Series([np.nan, np.nan, 1.0, 0.5, 2.0, 1.0], index=["a", "b"] * 3)
    tm.assert_series_equal(result, expected)

cmd: