Implement reverse mangling of svn properties.

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 55 matching lines @@
     self.assertEquals(1, len(patches.patches))
     obj = patches.patches[0]
     self.assertEquals(patch.FilePatchDiff, obj.__class__)
     self.assertEquals('file_a', obj.filename)
     self.assertEquals([], obj.svn_properties)
     self.assertEquals(False, obj.is_git_diff)
     self.assertEquals(0, obj.patchlevel)
     # This is because Rietveld._send() always returns the same buffer.
     self.assertEquals(output, obj.get())
 
+  def testSvnProperties(self):
+    # Line too long (N/80)
+    # pylint: disable=C0301
+
+    # To test one of these, run something like
+    # import json, pprint, urllib
+    # url = 'http://codereview.chromium.org/api/202046/1'
+    # pprint.pprint(json.load(urllib.urlopen(url))['files'])
+
+    # svn:mergeinfo across branches:
+    # http://codereview.chromium.org/202046/diff/1/third_party/libxml/xmlcatalog_dummy.cc
+    self.assertEquals(
+        [('svn:eol-style', 'LF')],
+        rietveld.Rietveld.parse_svn_properties(
+          u'\nAdded: svn:eol-style\n   + LF\n', 'foo'))
+
+    # svn:eol-style property that is lost in the diff
+    # http://codereview.chromium.org/202046/diff/1/third_party/libxml/xmllint_dummy.cc
+    self.assertEquals(
+        [],
+        rietveld.Rietveld.parse_svn_properties(
+          u'\nAdded: svn:mergeinfo\n'
+          '   Merged /branches/chrome_webkit_merge_branch/third_party/'
+          'libxml/xmldummy_mac.cc:r69-2775\n',
+          'foo'))
+
+    self.assertEquals(
+        [],
+        rietveld.Rietveld.parse_svn_properties(u'', 'foo'))
+
+    try:
+      rietveld.Rietveld.parse_svn_properties(u'\n', 'foo')
+      self.fail()
+    except rietveld.patch.UnsupportedPatchFormat, e:
+      self.assertEquals('foo', e.filename)
+    # TODO(maruel): Change with no diff, only svn property change:
+    # http://codereview.chromium.org/6462019/
 
 
 if __name__ == '__main__':
   logging.basicConfig(level=logging.ERROR)
   unittest.main()