cuda_core/tests/test_event.py::test_timing_success with generous_tolerance if platform_is_wsl (#740)

Author: rwgk

cuda_core/tests/test_event.py

@@ -3,6 +3,7 @@
 
 import os
 import pathlib
+import platform
 import time
 
 import numpy as np
@@ -21,6 +22,10 @@
 )
 
 
+def platform_is_wsl():
+    return platform.system() == "Linux" and "microsoft" in pathlib.Path("/proc/version").read_text().lower()
+
+
 def test_event_init_disabled():
     with pytest.raises(RuntimeError, match=r"^Event objects cannot be instantiated directly\."):
         cuda.core.experimental._event.Event()  # Ensure back door is locked.
@@ -40,7 +45,7 @@ def test_timing_success(init_cuda):
     # We only want to exercise the __sub__ method, this test is not meant
     # to stress-test the CUDA driver or time.sleep().
     delay_ms = delay_seconds * 1000
-    if os.name == "nt":  # noqa: SIM108
+    if os.name == "nt" or platform_is_wsl():  # noqa: SIM108
         # For Python <=3.10, the Windows timer resolution is typically limited to 15.6 ms by default.
         generous_tolerance = 100
     else: