skip test if resizing is not supported

diff --git a/Lib/test/test_mmap.py b/Lib/test/test_mmap.py
index 037c4940cf283c29d2f56edad2ac4f0557f3fadf..961aae1f6e5af2d367a6b83dc0b8861689b1dbbc 100644 (file)
--- a/Lib/test/test_mmap.py
+++ b/Lib/test/test_mmap.py
@@ -656,9 +656,12 @@ class MmapTests(unittest.TestCase):
         m = mmap.mmap(-1, 8192)
         self.addCleanup(m.close)
         m.read(5000)
-        m.resize(4096)
+        try:
+            m.resize(4096)
+        except SystemError:
+            self.skipTest("resizing not supported")
         self.assertEqual(m.read(14), '')
-        self.assertRaises(ValueError, m.read_byte,)
+        self.assertRaises(ValueError, m.read_byte,1)
         self.assertRaises(ValueError, m.write_byte, 'b')
         self.assertRaises(ValueError, m.write, 'abc')