commit 3cdd5cb959672ce24dcf8132f3e9bbe27f908dc7
author Hirokazu Yamamoto <ocean-city@m2.ccsnet.ne.jp> Thu Nov 04 12:09:08 2010 +0000
committer Hirokazu Yamamoto <ocean-city@m2.ccsnet.ne.jp> Thu Nov 04 12:09:08 2010 +0000
tree 0cae2e90e716369ea660d7e00d9ad266f0454970
parent 95c0700effc69b6b41a4a4ca104ee6b65a42be23

Issue #5391: mmap.read_byte() should return unsigned value [0, 255]
instead of signed value [-127, 128].

Lib/test/test_mmap.py

diff --git a/Lib/test/test_mmap.py b/Lib/test/test_mmap.py
index 54a43f9..f78fed9 100644
--- a/Lib/test/test_mmap.py
+++ b/Lib/test/test_mmap.py
@@ -534,6 +534,15 @@
         m.seek(8)
         self.assertRaises(ValueError, m.write, b"bar")
 
+    def test_non_ascii_byte(self):
+        for b in (129, 200, 255): # > 128
+            m = mmap.mmap(-1, 1)
+            m.write_byte(b)
+            self.assertEquals(m[0], b)
+            m.seek(0)
+            self.assertEquals(m.read_byte(), b)
+            m.close()
+
     if os.name == 'nt':
         def test_tagname(self):
             data1 = b"0123456789"