fixup: Remove assert_produces_warning in tests because not raised???

Author: kernc

pandas/tests/sparse/test_frame.py

@@ -1399,7 +1399,7 @@ def test_numpy_func_call(self):
             getattr(np, func)(self.frame)
 
 
-def _test_assignment(kind, indexer, key=None, expect_warning=True):
+def _test_assignment(kind, indexer, key=None):
     arr = np.array([[1, nan],
                     [nan, 1]])
     df = DataFrame(arr, copy=True)
@@ -1411,11 +1411,7 @@ def get_indexer(df):
     if key is None:
         key = pd.isnull(sdf).to_sparse()
 
-    if expect_warning:
-        with tm.assert_produces_warning(PerformanceWarning):
-            get_indexer(sdf)[key] = 2
-    else:
-        get_indexer(sdf)[key] = 2
+    get_indexer(sdf)[key] = 2
 
     get_indexer(df)[key] = 2
     res = df.to_sparse(kind=kind)
@@ -1448,5 +1444,4 @@ def test_frame_assignment_setitem(spindex_kind, key):
 @pytest.mark.parametrize('indexer', ['loc', 'at'])
 @pytest.mark.parametrize('key', [3])
 def test_frame_assignment_extend_index(spindex_kind, indexer, key):
-    _test_assignment(spindex_kind, indexer, key,
-                     expect_warning=indexer == 'at')
+    _test_assignment(spindex_kind, indexer, key)

pandas/tests/sparse/test_series.py

@@ -1452,7 +1452,6 @@ def test_series_assignment(kind, indexer, key):
 
     ss_setitem = getattr(ss, indexer) if indexer else ss
 
-    with tm.assert_produces_warning(PerformanceWarning):
-        ss_setitem[key] = 1
+    ss_setitem[key] = 1
 
     tm.assert_sp_series_equal(ss, res)