Merge branch 'ig/fix_mean_slice_calculation' of github.com:scverse/an…

…ndata into ig/fix_mean_slice_calculation

anndata/tests/test_backed_sparse.py

@@ -129,20 +129,20 @@ def make_randomized_mask(size: int) -> np.ndarray:
 
 
 # non-random indices, with alternating one false and n true
-def make_alternating_mask_10(size: int) -> np.ndarray:
-    mask_alternating = np.ones(size, dtype=bool)
-    for i in range(0, size, 10):  # 10 is enough to trigger new behavior
-        mask_alternating[i] = False
-    return mask_alternating
+from functools import partial
 
 
-def make_alternating_mask_5(size: int) -> np.ndarray:
+def make_alternating_mask(size: int, step: int) -> np.ndarray:
     mask_alternating = np.ones(size, dtype=bool)
-    for i in range(0, size, 5):  # 5 is too low to trigger new behavior
+    for i in range(0, size, step):  # 5 is too low to trigger new behavior
         mask_alternating[i] = False
     return mask_alternating
 
 
+make_alternating_mask_5 = partial(make_alternating_mask, step=5)
+make_alternating_mask_10 = partial(make_alternating_mask, step=10)
+
+
 def make_one_group_mask(size: int) -> np.ndarray:
     one_group_mask = np.zeros(size, dtype=bool)
     one_group_mask[size // 4 : size // 2] = True