Update test_resource.py

Author: Shrey-N

Lib/test/test_resource.py

@@ -57,24 +57,26 @@ def test_fsize_enforced(self):
 
         if max_lim != resource.RLIM_INFINITY and max_lim < 1025:
             self.skipTest(f"system RLIMIT_FSIZE hard limit ({max_lim}) is too small for this test")
-
         try:
-            with open(os_helper.TESTFN, "wb") as f:
-                resource.setrlimit(resource.RLIMIT_FSIZE, (1024, max_lim))
-
-                f.write(b"X" * 1024)
-                # This should raise OSError because it exceeds the 1024 byte limit
-                with self.assertRaises(OSError, msg="f.write() did not raise OSError when exceeding RLIMIT_FSIZE"):
-                    f.write(b"Y")
-                    f.flush()
-                    # On some systems (e.g., Ubuntu on hppa) the flush()
-                    # doesn't always cause the exception, but the close()
-                    # does eventually.  Try flushing several times in
-                    # an attempt to ensure the file is really synced and
-                    # the exception raised.
-                    for i in range(5):
-                        time.sleep(.1)
+            try:
+                with open(os_helper.TESTFN, "wb") as f:
+                    resource.setrlimit(resource.RLIMIT_FSIZE, (1024, max_lim))
+                    f.write(b"X" * 1024)
+                    with self.assertRaises(OSError, msg="f.write() did not raise OSError when exceeding RLIMIT_FSIZE"):
+                        f.write(b"Y")
                         f.flush()
+                        # On some systems (e.g., Ubuntu on hppa) the flush()
+                        # doesn't always cause the exception, but the close()
+                        # does eventually.  Try flushing several times in
+                        # an attempt to ensure the file is really synced and
+                        # the exception raised.
+                        for i in range(5):
+                            time.sleep(.1)
+                            f.flush()
+            except OSError as e:
+                if e.errno == errno.EFBIG:
+                    self.skipTest(f"ASAN/OS raised EFBIG prematurely on open/setup: {e}")
+                raise
         finally:
             resource.setrlimit(resource.RLIMIT_FSIZE, (cur, max_lim))