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testing case sort_index with pd.set_option('use_inf_as_na', True) #38542

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testing case sort_index with pd.set_option('use_inf_as_na', True) #38542

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20 changes: 20 additions & 0 deletions pandas/tests/frame/methods/test_sort_index.py
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Original file line number Diff line number Diff line change
Expand Up @@ -857,3 +857,23 @@ def test_sort_index_multiindex_sparse_column(self):
result = expected.sort_index(level=0)

tm.assert_frame_equal(result, expected)

def test_sort_index_mode_true(self):
d = {'col1': [1, 2, 3], 'col2': [3, 4, 5]}
df = pd.DataFrame(data=d)
now = pd.Timestamp.now()
df.index = [now, now - pd.Timedelta('1m'), now + pd.Timedelta('2m')]

try:
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please use pytest.raises here

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(this specific bit doesn't raise so this is a general pointer)

df1 = df.sort_index()
except Exception as ex:
print('test 1 failed: ', ex)

pd.set_option('use_inf_as_na', True)

try:
df2 = df.sort_index()
except Exception as ex:
print('test 2 failed: ', ex)