def METHOD_NAME(self):
    """Tests that things keep working with empty entries"""
    minipo = 'msgid "Source"\nmsgstr ""\n\nmsgid ""\nmsgstr ""'
    csvfile = self.po2csv(minipo)
    assert csvfile.findunit("Source") is not None
    assert csvfile.findunit("Source").target == ""
    assert headerless_len(csvfile.units) == 1