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TST/CLN: Parameterize test in sparse/test_indexing #23213

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Oct 18, 2018
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TST/CLN: Parameterize test in sparse/test_indexing #23213

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61 changes: 29 additions & 32 deletions pandas/tests/sparse/test_indexing.py
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Original file line number Diff line number Diff line change
Expand Up @@ -424,38 +424,35 @@ def test_reindex_nearest(self):
expected = pd.Series([0, np.nan, np.nan, 2], target).to_sparse()
tm.assert_sp_series_equal(expected, actual)

def tests_indexing_with_sparse(self):
# GH 13985

for kind in ['integer', 'block']:
for fill in [True, False, np.nan]:
arr = pd.SparseArray([1, 2, 3], kind=kind)
indexer = pd.SparseArray([True, False, True], fill_value=fill,
dtype=bool)

tm.assert_sp_array_equal(pd.SparseArray([1, 3], kind=kind),
arr[indexer],)

s = pd.SparseSeries(arr, index=['a', 'b', 'c'],
dtype=np.float64)

exp = pd.SparseSeries(
[1, 3], index=['a', 'c'],
dtype=SparseDtype(np.float64, s.fill_value),
kind=kind
)
tm.assert_sp_series_equal(s[indexer], exp)
tm.assert_sp_series_equal(s.loc[indexer], exp)
tm.assert_sp_series_equal(s.iloc[indexer], exp)

indexer = pd.SparseSeries(indexer, index=['a', 'b', 'c'])
tm.assert_sp_series_equal(s[indexer], exp)
tm.assert_sp_series_equal(s.loc[indexer], exp)

msg = ("iLocation based boolean indexing cannot use an "
"indexable as a mask")
with tm.assert_raises_regex(ValueError, msg):
s.iloc[indexer]
@pytest.mark.parametrize("kind", ["integer", "block"])
@pytest.mark.parametrize("fill", [True, False, np.nan])
def tests_indexing_with_sparse(self, kind, fill):
# see gh-13985
arr = pd.SparseArray([1, 2, 3], kind=kind)
indexer = pd.SparseArray([True, False, True],
fill_value=fill,
dtype=bool)

expected = arr[indexer]
result = pd.SparseArray([1, 3], kind=kind)
tm.assert_sp_array_equal(result, expected)

s = pd.SparseSeries(arr, index=["a", "b", "c"], dtype=np.float64)
expected = pd.SparseSeries([1, 3], index=["a", "c"], kind=kind,
dtype=SparseDtype(np.float64, s.fill_value))

tm.assert_sp_series_equal(s[indexer], expected)
tm.assert_sp_series_equal(s.loc[indexer], expected)
tm.assert_sp_series_equal(s.iloc[indexer], expected)

indexer = pd.SparseSeries(indexer, index=["a", "b", "c"])
tm.assert_sp_series_equal(s[indexer], expected)
tm.assert_sp_series_equal(s.loc[indexer], expected)

msg = ("iLocation based boolean indexing cannot "
"use an indexable as a mask")
with tm.assert_raises_regex(ValueError, msg):
s.iloc[indexer]


class TestSparseSeriesMultiIndexing(TestSparseSeriesIndexing):
Expand Down