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-rw-r--r--Lib/test/test_mailbox.py31
1 files changed, 31 insertions, 0 deletions
diff --git a/Lib/test/test_mailbox.py b/Lib/test/test_mailbox.py
index 28b9322..655b639 100644
--- a/Lib/test/test_mailbox.py
+++ b/Lib/test/test_mailbox.py
@@ -740,6 +740,37 @@ class TestMaildir(TestMailbox):
perms = st.st_mode
self.assertFalse((perms & 0o111)) # Execute bits should all be off.
+ def test_reread(self):
+ # Wait for 2 seconds
+ time.sleep(2)
+
+ # Initially, the mailbox has not been read and the time is null.
+ assert getattr(self._box, '_last_read', None) is None
+
+ # Refresh mailbox; the times should now be set to something.
+ self._box._refresh()
+ assert getattr(self._box, '_last_read', None) is not None
+
+ # Try calling _refresh() again; the modification times shouldn't have
+ # changed, so the mailbox should not be re-reading. Re-reading causes
+ # the ._toc attribute to be assigned a new dictionary object, so
+ # we'll check that the ._toc attribute isn't a different object.
+ orig_toc = self._box._toc
+ def refreshed():
+ return self._box._toc is not orig_toc
+
+ time.sleep(1) # Wait 1sec to ensure time.time()'s value changes
+ self._box._refresh()
+ assert not refreshed()
+
+ # Now, write something into cur and remove it. This changes
+ # the mtime and should cause a re-read.
+ filename = os.path.join(self._path, 'cur', 'stray-file')
+ f = open(filename, 'w')
+ f.close()
+ os.unlink(filename)
+ self._box._refresh()
+ assert refreshed()
class _TestMboxMMDF(TestMailbox):