Fancier thread manipulation

tests/unit_tests/test_main.py

@@ -2,6 +2,7 @@
 
 import threading
 from collections import Counter
+from itertools import product
 
 import pytest
 
@@ -124,11 +125,8 @@ def access() -> None:
         threading.Thread(target=access) for _ in range(num_threads)
     ]
 
-    for thread in threads:
-        thread.start()
-
-    for thread in threads:
-        thread.join()
+    for cb, thread in product((threading.Thread.start, threading.Thread.join), threads):
+        cb(thread)
 
     assert sum(call_counts.values()) == 1
 
@@ -158,11 +156,8 @@ def access() -> None:
         threading.Thread(target=access) for _ in range(num_threads)
     ]
 
-    for thread in threads:
-        thread.start()
-
-    for thread in threads:
-        thread.join()
+    for cb, thread in product((threading.Thread.start, threading.Thread.join), threads):
+        cb(thread)
 
     assert set(call_counts.values()) == {1}