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Merged
michcio1234 merged 1 commit into from
Jul 12, 2019
Merged

Bugfix/76 getitem empty frame - just add test #83

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10 changes: 10 additions & 0 deletions sparsity/test/test_sparse_frame.py
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Original file line number Diff line number Diff line change
Expand Up @@ -604,6 +604,16 @@ def test_getitem():
pdt.assert_index_equal(idx, sf[idx.values].columns)


def test_getitem_empty():
df = pd.DataFrame([], columns=list('abcdefghij'), dtype=float)
sf = SparseFrame(df)

assert sf['a'].empty
assert sf['a'].columns.tolist() == ['a']
assert sf[['a', 'b']].empty
assert sf[['a', 'b']].columns.tolist() == ['a', 'b']


def test_vstack():
frames = []
data = []
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