Python: scrabble_score

python/scrabble-score/.exercism/metadata.json

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+{"track":"python","exercise":"scrabble-score","id":"047f7e0f63664072b45c1f57ef807e01","url":"https://exercism.io/my/solutions/047f7e0f63664072b45c1f57ef807e01","handle":"DmitryKokorin","is_requester":true,"auto_approve":false}

python/scrabble-score/README.md

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+# 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.

python/scrabble-score/scrabble_score.py

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+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)

python/scrabble-score/scrabble_score_test.py

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+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()