def METHOD_NAME(self):
    import unicodedata
    text = 'Hyv\xe4'
    assert_equal(safe_str(unicodedata.normalize('NFC', text)), text)
    # In Mac filesystem umlaut characters are presented in NFD-format.
    # This is to check that unic normalizes all strings to NFC
    assert_equal(safe_str(unicodedata.normalize('NFD', text)), text)