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-rw-r--r--Lib/test/output/test_mmap1
-rw-r--r--Lib/test/test_mmap.py8
2 files changed, 9 insertions, 0 deletions
diff --git a/Lib/test/output/test_mmap b/Lib/test/output/test_mmap
index 02b24bc..1ce4943 100644
--- a/Lib/test/output/test_mmap
+++ b/Lib/test/output/test_mmap
@@ -31,6 +31,7 @@ test_mmap
Modifying copy-on-write memory map.
Ensuring copy-on-write maps cannot be resized.
Ensuring invalid access parameter raises exception.
+ Try opening a bad file descriptor...
Ensuring that passing 0 as map length sets map size to current file size.
Ensuring that passing 0 as map length sets map size to current file size.
Test passed
diff --git a/Lib/test/test_mmap.py b/Lib/test/test_mmap.py
index 849f170..6930317 100644
--- a/Lib/test/test_mmap.py
+++ b/Lib/test/test_mmap.py
@@ -281,6 +281,14 @@ def test_both():
except OSError:
pass
+ print ' Try opening a bad file descriptor...'
+ try:
+ mmap.mmap(-1, 4096)
+ except mmap.error:
+ pass
+ else:
+ verify(0, 'expected a mmap.error but did not get it')
+
# Do a tougher .find() test. SF bug 515943 pointed out that, in 2.2,
# searching for data with embedded \0 bytes didn't work.
f = open(TESTFN, 'w+')