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-rw-r--r--Lib/test/test_mmap.py8
1 files changed, 8 insertions, 0 deletions
diff --git a/Lib/test/test_mmap.py b/Lib/test/test_mmap.py
index cbef374..9b7100d 100644
--- a/Lib/test/test_mmap.py
+++ b/Lib/test/test_mmap.py
@@ -234,6 +234,14 @@ class MmapTests(unittest.TestCase):
flags=mmap.MAP_PRIVATE,
prot=mmap.PROT_READ, access=mmap.ACCESS_WRITE)
+ # 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()
+
def test_bad_file_desc(self):
# Try opening a bad file descriptor...
self.assertRaises(mmap.error, mmap.mmap, -2, 4096)