Fix deleted empty files.

tests/rietveld_test.py

 #!/usr/bin/env python
 # Copyright (c) 2011 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Unit tests for rietveld.py."""
 
 import logging
 import os
 import sys
@@ skipping 170 matching lines @@
         is_new=True)
 
   def test_delete(self):
     name = 'tools/clang_check/README.chromium'
     self.requests = [
         ('/api/123/456', _api({name: _file('D')})),
         ('/download/issue123_456_789.diff', RAW.DELETE),
     ]
     patches = self.rietveld.get_patch(123, 456)
     self.assertEquals(1, len(patches.patches))
-    self._check_patch(patches.patches[0], name, None, is_delete=True)
+    self._check_patch(patches.patches[0], name, RAW.DELETE, is_delete=True)
+
+  def test_delete_empty(self):
+    name = 'tests/__init__.py'
+    self.requests = [
+        ('/api/123/456', _api({name: _file('D')})),
+        ('/download/issue123_456_789.diff', GIT.DELETE_EMPTY),
+    ]
+    patches = self.rietveld.get_patch(123, 456)
+    self.assertEquals(1, len(patches.patches))
+    self._check_patch(
+        patches.patches[0],
+        name,
+        GIT.DELETE_EMPTY,
+        is_delete=True,
+        is_git_diff=True,
+        patchlevel=1)
 
   def test_m_plus(self):
     properties = '\nAdded: svn:eol-style\n   + LF\n'
     self.requests = [
         ('/api/123/456',
           _api({'chrome/file.cc': _file('M+', property_changes=properties)})),
         ('/download/issue123_456_789.diff', RAW.PATCH),
     ]
     patches = self.rietveld.get_patch(123, 456)
     self.assertEquals(1, len(patches.patches))
@@ skipping 139 matching lines @@
         {'foo': 'bar'},
         {'foo': 'baz'},
         {'foo': 'prout'},
     ]
     for i in self.rietveld.search(base='base'):
       self.assertEquals(expected.pop(0), i)
     self.assertEquals([], expected)
 
 
 if __name__ == '__main__':
-  logging.basicConfig(level=logging.ERROR)
+  logging.basicConfig(level=[
+    logging.ERROR, logging.INFO, logging.DEBUG][min(2, sys.argv.count('-v'))])
   unittest.main()