From 4a52a71956a8d46fcb7294ac71734504bb09bcc2 Mon Sep 17 00:00:00 2001
From: S. Solomon Darnell
Date: Fri, 28 Mar 2025 21:52:21 -0500
Subject: two version of R2R are here

---
 .../greenlet/tests/fail_slp_switch.py              | 29 ++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 .venv/lib/python3.12/site-packages/greenlet/tests/fail_slp_switch.py

(limited to '.venv/lib/python3.12/site-packages/greenlet/tests/fail_slp_switch.py')

diff --git a/.venv/lib/python3.12/site-packages/greenlet/tests/fail_slp_switch.py b/.venv/lib/python3.12/site-packages/greenlet/tests/fail_slp_switch.py
new file mode 100644
index 00000000..09905269
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/greenlet/tests/fail_slp_switch.py
@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+"""
+A test helper for seeing what happens when slp_switch()
+fails.
+"""
+# pragma: no cover
+
+import greenlet
+
+
+print('fail_slp_switch is running', flush=True)
+
+runs = []
+def func():
+    runs.append(1)
+    greenlet.getcurrent().parent.switch()
+    runs.append(2)
+    greenlet.getcurrent().parent.switch()
+    runs.append(3)
+
+g = greenlet._greenlet.UnswitchableGreenlet(func)
+g.switch()
+assert runs == [1]
+g.switch()
+assert runs == [1, 2]
+g.force_slp_switch_error = True
+
+# This should crash.
+g.switch()
-- 
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