# HG changeset patch
# User Matt Mackall <mpm@selenic.com>
# Date 2011-10-31 20:41:39
# Node ID d7bfbc92a1c0b5d878febf44e1a1f1dc83b1259a
# Parent  a5a6a9b7f3b92225512d277505bd49e2a32cd2b8

util: add a doctest for empty sha() calls

diff --git a/hgext/largefiles/lfutil.py b/hgext/largefiles/lfutil.py
--- a/hgext/largefiles/lfutil.py
+++ b/hgext/largefiles/lfutil.py
@@ -443,7 +443,7 @@ def mkstemp(repo, prefix):
     '''Returns a file descriptor and a filename corresponding to a temporary
     file in the repo's largefiles store.'''
     path = repo.join(longname)
-    util.makedirs(repo.join(path))
+    util.makedirs(path)
     return tempfile.mkstemp(prefix=prefix, dir=path)
 
 class storeprotonotcapable(Exception):
diff --git a/mercurial/util.py b/mercurial/util.py
--- a/mercurial/util.py
+++ b/mercurial/util.py
@@ -74,6 +74,16 @@ username = platform.username
 # Python compatibility
 
 def sha1(s=''):
+    '''
+    Low-overhead wrapper around Python's SHA support
+
+    >>> f = _fastsha1
+    >>> a = sha1()
+    >>> a = f()
+    >>> a.hexdigest()
+    'da39a3ee5e6b4b0d3255bfef95601890afd80709'
+    '''
+
     return _fastsha1(s)
 
 _notset = object()
diff --git a/tests/test-doctest.py b/tests/test-doctest.py
--- a/tests/test-doctest.py
+++ b/tests/test-doctest.py
@@ -4,6 +4,9 @@ if 'TERM' in os.environ:
     del os.environ['TERM']
 import doctest
 
+import mercurial.util
+doctest.testmod(mercurial.util)
+
 import mercurial.changelog
 doctest.testmod(mercurial.changelog)
 
@@ -22,9 +25,6 @@ doctest.testmod(mercurial.ui)
 import mercurial.url
 doctest.testmod(mercurial.url)
 
-import mercurial.util
-doctest.testmod(mercurial.util)
-
 import mercurial.encoding
 doctest.testmod(mercurial.encoding)