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Add tests to morse_code.py (#5337)
* Add tests to morse_code.py
@dhruvmanila @poyea Your reviews, please.
* updating DIRECTORY.md
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
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Christian Clauss
GitHub
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@ -53,6 +53,7 @@
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* [A1Z26](https://github.com/TheAlgorithms/Python/blob/master/ciphers/a1z26.py)
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* [Affine Cipher](https://github.com/TheAlgorithms/Python/blob/master/ciphers/affine_cipher.py)
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* [Atbash](https://github.com/TheAlgorithms/Python/blob/master/ciphers/atbash.py)
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* [Baconian Cipher](https://github.com/TheAlgorithms/Python/blob/master/ciphers/baconian_cipher.py)
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* [Base16](https://github.com/TheAlgorithms/Python/blob/master/ciphers/base16.py)
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* [Base32](https://github.com/TheAlgorithms/Python/blob/master/ciphers/base32.py)
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* [Base64 Encoding](https://github.com/TheAlgorithms/Python/blob/master/ciphers/base64_encoding.py)
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@ -70,7 +71,7 @@
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* [Hill Cipher](https://github.com/TheAlgorithms/Python/blob/master/ciphers/hill_cipher.py)
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* [Mixed Keyword Cypher](https://github.com/TheAlgorithms/Python/blob/master/ciphers/mixed_keyword_cypher.py)
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* [Mono Alphabetic Ciphers](https://github.com/TheAlgorithms/Python/blob/master/ciphers/mono_alphabetic_ciphers.py)
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* [Morse Code Implementation](https://github.com/TheAlgorithms/Python/blob/master/ciphers/morse_code_implementation.py)
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* [Morse Code](https://github.com/TheAlgorithms/Python/blob/master/ciphers/morse_code.py)
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* [Onepad Cipher](https://github.com/TheAlgorithms/Python/blob/master/ciphers/onepad_cipher.py)
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* [Playfair Cipher](https://github.com/TheAlgorithms/Python/blob/master/ciphers/playfair_cipher.py)
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* [Porta Cipher](https://github.com/TheAlgorithms/Python/blob/master/ciphers/porta_cipher.py)
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@ -328,10 +329,12 @@
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* [Graph Matrix](https://github.com/TheAlgorithms/Python/blob/master/graphs/graph_matrix.py)
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* [Graphs Floyd Warshall](https://github.com/TheAlgorithms/Python/blob/master/graphs/graphs_floyd_warshall.py)
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* [Greedy Best First](https://github.com/TheAlgorithms/Python/blob/master/graphs/greedy_best_first.py)
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* [Greedy Min Vertex Cover](https://github.com/TheAlgorithms/Python/blob/master/graphs/greedy_min_vertex_cover.py)
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* [Kahns Algorithm Long](https://github.com/TheAlgorithms/Python/blob/master/graphs/kahns_algorithm_long.py)
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* [Kahns Algorithm Topo](https://github.com/TheAlgorithms/Python/blob/master/graphs/kahns_algorithm_topo.py)
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* [Karger](https://github.com/TheAlgorithms/Python/blob/master/graphs/karger.py)
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* [Markov Chain](https://github.com/TheAlgorithms/Python/blob/master/graphs/markov_chain.py)
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* [Matching Min Vertex Cover](https://github.com/TheAlgorithms/Python/blob/master/graphs/matching_min_vertex_cover.py)
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* [Minimum Spanning Tree Boruvka](https://github.com/TheAlgorithms/Python/blob/master/graphs/minimum_spanning_tree_boruvka.py)
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* [Minimum Spanning Tree Kruskal](https://github.com/TheAlgorithms/Python/blob/master/graphs/minimum_spanning_tree_kruskal.py)
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* [Minimum Spanning Tree Kruskal2](https://github.com/TheAlgorithms/Python/blob/master/graphs/minimum_spanning_tree_kruskal2.py)
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@ -497,6 +500,7 @@
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* [Prime Numbers](https://github.com/TheAlgorithms/Python/blob/master/maths/prime_numbers.py)
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* [Prime Sieve Eratosthenes](https://github.com/TheAlgorithms/Python/blob/master/maths/prime_sieve_eratosthenes.py)
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* [Primelib](https://github.com/TheAlgorithms/Python/blob/master/maths/primelib.py)
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* [Proth Number](https://github.com/TheAlgorithms/Python/blob/master/maths/proth_number.py)
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* [Pythagoras](https://github.com/TheAlgorithms/Python/blob/master/maths/pythagoras.py)
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* [Qr Decomposition](https://github.com/TheAlgorithms/Python/blob/master/maths/qr_decomposition.py)
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* [Quadratic Equations Complex Numbers](https://github.com/TheAlgorithms/Python/blob/master/maths/quadratic_equations_complex_numbers.py)
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@ -951,6 +955,7 @@
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* [Current Stock Price](https://github.com/TheAlgorithms/Python/blob/master/web_programming/current_stock_price.py)
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* [Current Weather](https://github.com/TheAlgorithms/Python/blob/master/web_programming/current_weather.py)
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* [Daily Horoscope](https://github.com/TheAlgorithms/Python/blob/master/web_programming/daily_horoscope.py)
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* [Download Images From Google Query](https://github.com/TheAlgorithms/Python/blob/master/web_programming/download_images_from_google_query.py)
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* [Emails From Url](https://github.com/TheAlgorithms/Python/blob/master/web_programming/emails_from_url.py)
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* [Fetch Bbc News](https://github.com/TheAlgorithms/Python/blob/master/web_programming/fetch_bbc_news.py)
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* [Fetch Github Info](https://github.com/TheAlgorithms/Python/blob/master/web_programming/fetch_github_info.py)
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58
ciphers/morse_code.py
Normal file
58
ciphers/morse_code.py
Normal file
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@ -0,0 +1,58 @@
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#!/usr/bin/env python3
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"""
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Python program to translate to and from Morse code.
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https://en.wikipedia.org/wiki/Morse_code
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"""
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# fmt: off
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MORSE_CODE_DICT = {
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"A": ".-", "B": "-...", "C": "-.-.", "D": "-..", "E": ".", "F": "..-.", "G": "--.",
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"H": "....", "I": "..", "J": ".---", "K": "-.-", "L": ".-..", "M": "--", "N": "-.",
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"O": "---", "P": ".--.", "Q": "--.-", "R": ".-.", "S": "...", "T": "-", "U": "..-",
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"V": "...-", "W": ".--", "X": "-..-", "Y": "-.--", "Z": "--..", "1": ".----",
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"2": "..---", "3": "...--", "4": "....-", "5": ".....", "6": "-....", "7": "--...",
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"8": "---..", "9": "----.", "0": "-----", "&": ".-...", "@": ".--.-.",
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":": "---...", ",": "--..--", ".": ".-.-.-", "'": ".----.", '"': ".-..-.",
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"?": "..--..", "/": "-..-.", "=": "-...-", "+": ".-.-.", "-": "-....-",
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"(": "-.--.", ")": "-.--.-", "!": "-.-.--", " ": "/"
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} # Exclamation mark is not in ITU-R recommendation
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# fmt: on
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REVERSE_DICT = {value: key for key, value in MORSE_CODE_DICT.items()}
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def encrypt(message: str) -> str:
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"""
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>>> encrypt("Sos!")
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'... --- ... -.-.--'
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>>> encrypt("SOS!") == encrypt("sos!")
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True
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"""
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return " ".join(MORSE_CODE_DICT[char] for char in message.upper())
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def decrypt(message: str) -> str:
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"""
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>>> decrypt('... --- ... -.-.--')
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'SOS!'
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"""
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return "".join(REVERSE_DICT[char] for char in message.split())
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def main() -> None:
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"""
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>>> s = "".join(MORSE_CODE_DICT)
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>>> decrypt(encrypt(s)) == s
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True
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"""
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message = "Morse code here!"
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print(message)
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message = encrypt(message)
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print(message)
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message = decrypt(message)
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print(message)
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if __name__ == "__main__":
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main()
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@ -1,97 +0,0 @@
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# Python program to implement Morse Code Translator
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# Dictionary representing the morse code chart
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MORSE_CODE_DICT = {
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"A": ".-",
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"B": "-...",
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"C": "-.-.",
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"D": "-..",
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"E": ".",
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"F": "..-.",
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"G": "--.",
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"H": "....",
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"I": "..",
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"J": ".---",
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"K": "-.-",
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"L": ".-..",
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"M": "--",
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"N": "-.",
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"O": "---",
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"P": ".--.",
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"Q": "--.-",
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"R": ".-.",
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"S": "...",
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"T": "-",
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"U": "..-",
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"V": "...-",
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"W": ".--",
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"X": "-..-",
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"Y": "-.--",
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"Z": "--..",
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"1": ".----",
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"2": "..---",
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"3": "...--",
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"4": "....-",
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"5": ".....",
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"6": "-....",
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"7": "--...",
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"8": "---..",
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"9": "----.",
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"0": "-----",
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"&": ".-...",
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"@": ".--.-.",
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":": "---...",
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",": "--..--",
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".": ".-.-.-",
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"'": ".----.",
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'"': ".-..-.",
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"?": "..--..",
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"/": "-..-.",
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"=": "-...-",
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"+": ".-.-.",
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"-": "-....-",
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"(": "-.--.",
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")": "-.--.-",
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# Exclamation mark is not in ITU-R recommendation
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"!": "-.-.--",
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}
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def encrypt(message: str) -> str:
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cipher = ""
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for letter in message:
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if letter != " ":
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cipher += MORSE_CODE_DICT[letter] + " "
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else:
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cipher += "/ "
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# Remove trailing space added on line 64
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return cipher[:-1]
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def decrypt(message: str) -> str:
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decipher = ""
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letters = message.split(" ")
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for letter in letters:
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if letter != "/":
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decipher += list(MORSE_CODE_DICT.keys())[
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list(MORSE_CODE_DICT.values()).index(letter)
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]
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else:
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decipher += " "
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return decipher
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def main() -> None:
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message = "Morse code here"
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result = encrypt(message.upper())
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print(result)
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message = result
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result = decrypt(message)
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print(result)
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if __name__ == "__main__":
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main()
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