CLN: test_ewm_rolling_consistency.py (pandas-dev#37951)

Author: mroeschke

pandas/tests/window/common.py

@@ -10,6 +10,7 @@
 
 @pytest.fixture(params=[True, False])
 def raw(request):
+    """raw keyword argument for rolling.apply"""
     return request.param
 
 
@@ -274,43 +275,22 @@ def consistency_data(request):
     return request.param
 
 
-def _create_arr():
-    """Internal function to mock an array."""
+def _create_series():
+    """Internal function to mock Series."""
     arr = np.random.randn(100)
     locs = np.arange(20, 40)
     arr[locs] = np.NaN
-    return arr
-
-
-def _create_rng():
-    """Internal function to mock date range."""
-    rng = bdate_range(datetime(2009, 1, 1), periods=100)
-    return rng
-
-
-def _create_series():
-    """Internal function to mock Series."""
-    arr = _create_arr()
-    series = Series(arr.copy(), index=_create_rng())
+    series = Series(arr, index=bdate_range(datetime(2009, 1, 1), periods=100))
     return series
 
 
 def _create_frame():
     """Internal function to mock DataFrame."""
-    rng = _create_rng()
-    return DataFrame(np.random.randn(100, 10), index=rng, columns=np.arange(10))
-
-
-@pytest.fixture
-def nan_locs():
-    """Make a range as loc fixture."""
-    return np.arange(20, 40)
-
-
-@pytest.fixture
-def arr():
-    """Make an array as fixture."""
-    return _create_arr()
+    return DataFrame(
+        np.random.randn(100, 10),
+        index=bdate_range(datetime(2009, 1, 1), periods=100),
+        columns=np.arange(10),
+    )
 
 
 @pytest.fixture