[3.11] gh-107888: Fix test_mmap.test_access_parameter() on macOS 14 (GH-109928) (#109930)

miss-islington · vstinner · web-flow · commit 88917ddf448d · 2023-09-26T22:51:34.000Z
gh-107888: Fix test_mmap.test_access_parameter() on macOS 14 (GH-109928) (cherry picked from commit 9dbfe2d) Co-authored-by: Victor Stinner <vstinner@python.org>
diff --git a/Lib/test/test_mmap.py b/Lib/test/test_mmap.py
@@ -255,10 +255,15 @@ def test_access_parameter(self):
             # Try writing with PROT_EXEC and without PROT_WRITE
             prot = mmap.PROT_READ | getattr(mmap, 'PROT_EXEC', 0)
             with open(TESTFN, "r+b") as f:
-                m = mmap.mmap(f.fileno(), mapsize, prot=prot)
-                self.assertRaises(TypeError, m.write, b"abcdef")
-                self.assertRaises(TypeError, m.write_byte, 0)
-                m.close()
+                try:
+                    m = mmap.mmap(f.fileno(), mapsize, prot=prot)
+                except PermissionError:
+                    # on macOS 14, PROT_READ | PROT_WRITE is not allowed
+                    pass
+                else:
+                    self.assertRaises(TypeError, m.write, b"abcdef")
+                    self.assertRaises(TypeError, m.write_byte, 0)
+                    m.close()
 
     def test_bad_file_desc(self):
         # Try opening a bad file descriptor...
