From fbb5e78176ecc6f9ba4c27e50b5a67d3b9d5d119 Mon Sep 17 00:00:00 2001
From: Jeong YunWon <jeong@youknowone.org>
Date: Fri, 24 Feb 2023 15:44:22 +0900
Subject: [PATCH 1/2] double windows sleep for syntax_async

---
 extra_tests/snippets/syntax_async.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/extra_tests/snippets/syntax_async.py b/extra_tests/snippets/syntax_async.py
index a817a61a3f..064dadc7f4 100644
--- a/extra_tests/snippets/syntax_async.py
+++ b/extra_tests/snippets/syntax_async.py
@@ -34,7 +34,7 @@ async def __anext__(self):
 
 
 if sys.platform.startswith("win"):
-    SLEEP_UNIT = 0.5
+    SLEEP_UNIT = 1.0
 else:
     SLEEP_UNIT = 0.1
 

From ae3de43a62036e84dbb304f362cbed6303044020 Mon Sep 17 00:00:00 2001
From: Jeong YunWon <jeong@youknowone.org>
Date: Fri, 24 Feb 2023 21:44:10 +0900
Subject: [PATCH 2/2] retry 10times in windows

---
 extra_tests/snippets/syntax_async.py | 33 ++++++++++++++++++----------
 1 file changed, 21 insertions(+), 12 deletions(-)

diff --git a/extra_tests/snippets/syntax_async.py b/extra_tests/snippets/syntax_async.py
index 064dadc7f4..011182cce7 100644
--- a/extra_tests/snippets/syntax_async.py
+++ b/extra_tests/snippets/syntax_async.py
@@ -32,11 +32,7 @@ async def __anext__(self):
             raise StopAsyncIteration
         return value
 
-
-if sys.platform.startswith("win"):
-    SLEEP_UNIT = 1.0
-else:
-    SLEEP_UNIT = 0.1
+SLEEP_UNIT = 0.1
 
 async def a(s, m):
     async with ContextManager() as b:
@@ -48,19 +44,14 @@ async def a(s, m):
         await asyncio.sleep(SLEEP_UNIT)
 
 
-
-async def main():
+async def run():
     tasks = [
         asyncio.create_task(c)
         for c in [a(SLEEP_UNIT * 0, "hello1"), a(SLEEP_UNIT * 1, "hello2"), a(SLEEP_UNIT * 2, "hello3"), a(SLEEP_UNIT * 3, "hello4")]
     ]
     await asyncio.wait(tasks)
 
-
-ls = []
-asyncio.run(main(), debug=True)
-
-assert ls == [
+expected = [
     1,
     3,
     1,
@@ -78,6 +69,24 @@ async def main():
     "hello3",
     "hello4",
 ]
+ls = []
+
+def test():
+    global SLEEP_UNIT
+    if sys.platform.startswith("win"):
+        SLEEP_UNIT *= 2
+    ls.clear()
+    asyncio.run(run(), debug=True)
+    assert ls == expected
+
+
+for i in reversed(range(10)):
+    try:
+        test()
+        break
+    except AssertionError:
+        if i == 0:
+            raise
 
 
 if sys.version_info < (3, 11, 0):