call site 17 for path.svnwc.write
path/svn/testing/test_wccommand.py - line 97
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   def test_status_unknown(self):
       t1 = self.root.join('un1')
       try:
->         t1.write('test')
           s = self.root.status()
           # Comparing just the file names, because paths are unpredictable
           # on Windows. (long vs. 8.3 paths)
           assert t1.basename in [item.basename for item in s.unknown]
       finally:
           t1.localpath.remove()