diff --git a/python/scrabble-score/.exercism/metadata.json b/python/scrabble-score/.exercism/metadata.json new file mode 100644 index 0000000..cf7d8df --- /dev/null +++ b/python/scrabble-score/.exercism/metadata.json @@ -0,0 +1 @@ +{"track":"python","exercise":"scrabble-score","id":"047f7e0f63664072b45c1f57ef807e01","url":"https://exercism.io/my/solutions/047f7e0f63664072b45c1f57ef807e01","handle":"DmitryKokorin","is_requester":true,"auto_approve":false} \ No newline at end of file diff --git a/python/scrabble-score/README.md b/python/scrabble-score/README.md new file mode 100644 index 0000000..8292eb9 --- /dev/null +++ b/python/scrabble-score/README.md @@ -0,0 +1,87 @@ +# Scrabble Score + +Given a word, compute the scrabble score for that word. + +## Letter Values + +You'll need these: + +```text +Letter Value +A, E, I, O, U, L, N, R, S, T 1 +D, G 2 +B, C, M, P 3 +F, H, V, W, Y 4 +K 5 +J, X 8 +Q, Z 10 +``` + +## Examples + +"cabbage" should be scored as worth 14 points: + +- 3 points for C +- 1 point for A, twice +- 3 points for B, twice +- 2 points for G +- 1 point for E + +And to total: + +- `3 + 2*1 + 2*3 + 2 + 1` +- = `3 + 2 + 6 + 3` +- = `5 + 9` +- = 14 + +## Extensions + +- You can play a double or a triple letter. +- You can play a double or a triple word. + + +## Exception messages + +Sometimes it is necessary to raise an exception. When you do this, you should include a meaningful error message to +indicate what the source of the error is. This makes your code more readable and helps significantly with debugging. Not +every exercise will require you to raise an exception, but for those that do, the tests will only pass if you include +a message. + +To raise a message with an exception, just write it as an argument to the exception type. For example, instead of +`raise Exception`, you should write: + +```python +raise Exception("Meaningful message indicating the source of the error") +``` + +## Running the tests + +To run the tests, run `pytest scrabble_score_test.py` + +Alternatively, you can tell Python to run the pytest module: +`python -m pytest scrabble_score_test.py` + +### Common `pytest` options + +- `-v` : enable verbose output +- `-x` : stop running tests on first failure +- `--ff` : run failures from previous test before running other test cases + +For other options, see `python -m pytest -h` + +## Submitting Exercises + +Note that, when trying to submit an exercise, make sure the solution is in the `$EXERCISM_WORKSPACE/python/scrabble-score` directory. + +You can find your Exercism workspace by running `exercism debug` and looking for the line that starts with `Workspace`. + +For more detailed information about running tests, code style and linting, +please see [Running the Tests](http://exercism.io/tracks/python/tests). + +## Source + +Inspired by the Extreme Startup game [https://github.com/rchatley/extreme_startup](https://github.com/rchatley/extreme_startup) + +## Submitting Incomplete Solutions + +It's possible to submit an incomplete solution so you can see how others have completed the exercise. diff --git a/python/scrabble-score/scrabble_score.py b/python/scrabble-score/scrabble_score.py new file mode 100644 index 0000000..b9feefe --- /dev/null +++ b/python/scrabble-score/scrabble_score.py @@ -0,0 +1,12 @@ +SCORES = {'A': 1, 'E': 1, 'I': 1, 'O': 1, 'U': 1, 'L': 1, 'N': 1, 'R': 1, + 'S': 1, 'T': 1, + 'D': 2, 'G': 2, + 'B': 3, 'C': 3, 'M': 3, 'P': 3, + 'F': 4, 'H': 4, 'V': 4, 'W': 4, 'Y': 4, + 'K': 5, + 'J': 8, 'X': 8, + 'Q': 10, 'Z': 10} + + +def score(word): + return sum(SCORES[ch.upper()] for ch in word) diff --git a/python/scrabble-score/scrabble_score_test.py b/python/scrabble-score/scrabble_score_test.py new file mode 100644 index 0000000..f3bce4f --- /dev/null +++ b/python/scrabble-score/scrabble_score_test.py @@ -0,0 +1,44 @@ +import unittest + +from scrabble_score import score + +# Tests adapted from `problem-specifications//canonical-data.json` + + +class ScrabbleScoreTest(unittest.TestCase): + def test_lowercase_letter(self): + self.assertEqual(score("a"), 1) + + def test_uppercase_letter(self): + self.assertEqual(score("A"), 1) + + def test_valuable_letter(self): + self.assertEqual(score("f"), 4) + + def test_short_word(self): + self.assertEqual(score("at"), 2) + + def test_short_valuable_word(self): + self.assertEqual(score("zoo"), 12) + + def test_medium_word(self): + self.assertEqual(score("street"), 6) + + def test_medium_valuable_word(self): + self.assertEqual(score("quirky"), 22) + + def test_long_mixed_case_word(self): + self.assertEqual(score("OxyphenButazone"), 41) + + def test_english_like_word(self): + self.assertEqual(score("pinata"), 8) + + def test_empty_input(self): + self.assertEqual(score(""), 0) + + def test_entire_alphabet_available(self): + self.assertEqual(score("abcdefghijklmnopqrstuvwxyz"), 87) + + +if __name__ == "__main__": + unittest.main()