def colons_are_decoded(): assert_equal(":", decode_escape_sequences(r"\:"))
def backslashes_are_decoded(): assert_equal("\\", decode_escape_sequences(r"\\"))
def carriage_returns_are_decoded(): assert_equal("\r", decode_escape_sequences(r"\r"))
def tabs_are_decoded(): assert_equal("\t", decode_escape_sequences(r"\t"))
def line_feeds_are_decoded(): assert_equal("\n", decode_escape_sequences(r"\n"))