[3.12] gh-111347: Remove wrong assertion in test_sendfile (GH-111377) (#111461)

miss-islington · zcxsythenew · web-flow · commit 0681b4c82c98 · 2023-10-29T10:29:29.000-07:00
gh-111347: Remove wrong assertion in test_sendfile (GH-111377) Windows is different. (cherry picked from commit fa35b9e) Co-authored-by: zcxsythenew <30565051+zcxsythenew@users.noreply.github.com>
diff --git a/Lib/test/test_asyncio/test_sendfile.py b/Lib/test/test_asyncio/test_sendfile.py
@@ -470,8 +470,11 @@ def test_sendfile_close_peer_in_the_middle_of_receiving(self):
 
         self.assertTrue(1024 <= srv_proto.nbytes < len(self.DATA),
                         srv_proto.nbytes)
-        self.assertTrue(1024 <= self.file.tell() < len(self.DATA),
-                        self.file.tell())
+        if not (sys.platform == 'win32'
+                and isinstance(self.loop, asyncio.ProactorEventLoop)):
+            # On Windows, Proactor uses transmitFile, which does not update tell()
+            self.assertTrue(1024 <= self.file.tell() < len(self.DATA),
+                            self.file.tell())
         self.assertTrue(cli_proto.transport.is_closing())
 
     def test_sendfile_fallback_close_peer_in_the_middle_of_receiving(self):
