comments updated

Author: auderson

pandas/tests/window/test_rolling.py

@@ -1867,22 +1867,19 @@ def test_step_not_positive_raises():
     ],
 )
 def test_rolling_var_same_value_count_logic(values, window, min_periods, expected):
-    """
-    For GH 42064.
-
-    With new algo implemented, result will be set to .0 in rolling var
-    if sufficient amount of consecutively same values are found.
-
-    Below, use `assert_series_equal` twice to check for equality,
-    because `check_exact=True` will fail in 32-bit tests due to
-    precision loss.
-
-    """
+    # GH 42064.
 
     expected = Series(expected)
-
     sr = Series(values)
+
+    # With new algo implemented, result will be set to .0 in rolling var
+    # if sufficient amount of consecutively same values are found.
     result_var = sr.rolling(window, min_periods=min_periods).var()
+
+    # use `assert_series_equal` twice to check for equality,
+    # because `check_exact=True` will fail in 32-bit tests due to
+    # precision loss.
+
     # 1. result should be close to correct value
     # non-zero values can still differ slightly from "truth"
     # as the result of online algorithm