primeiro commit com exercicios de Exercism realizados até esta data
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{
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"authors": [
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"betegelse"
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],
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"contributors": [
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"behrtam",
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"cmccandless",
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"crsmi",
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"Dog",
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"Grociu",
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"ikhadykin",
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"kytrinyx",
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"N-Parsons",
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"pheanex",
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"sjakobi",
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"sjwarner-bp",
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"subkrish",
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"tqa236",
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"yawpitch"
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],
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"files": {
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"solution": [
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"secret_handshake.py"
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],
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"test": [
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"secret_handshake_test.py"
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],
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"example": [
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".meta/example.py"
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]
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},
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"blurb": "Given a decimal number, convert it to the appropriate sequence of events for a secret handshake.",
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"source": "Bert, in Mary Poppins",
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"source_url": "https://www.imdb.com/title/tt0058331/quotes/?item=qt0437047"
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}
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{"track":"python","exercise":"secret-handshake","id":"f1f23c6106f44f09b72e6154c72317d7","url":"https://exercism.org/tracks/python/exercises/secret-handshake","handle":"sanctushck","is_requester":true,"auto_approve":false}
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# Help
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## Running the tests
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We use [pytest][pytest: Getting Started Guide] as our website test runner.
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You will need to install `pytest` on your development machine if you want to run tests for the Python track locally.
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You should also install the following `pytest` plugins:
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- [pytest-cache][pytest-cache]
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- [pytest-subtests][pytest-subtests]
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Extended information can be found in our website [Python testing guide][Python track tests page].
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### Running Tests
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To run the included tests, navigate to the folder where the exercise is stored using `cd` in your terminal (_replace `{exercise-folder-location}` below with your path_).
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Test files usually end in `_test.py`, and are the same tests that run on the website when a solution is uploaded.
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Linux/MacOS
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```bash
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$ cd {path/to/exercise-folder-location}
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```
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Windows
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```powershell
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PS C:\Users\foobar> cd {path\to\exercise-folder-location}
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```
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<br>
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Next, run the `pytest` command in your terminal, replacing `{exercise_test.py}` with the name of the test file:
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Linux/MacOS
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```bash
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$ python3 -m pytest -o markers=task {exercise_test.py}
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==================== 7 passed in 0.08s ====================
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```
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Windows
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```powershell
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PS C:\Users\foobar> py -m pytest -o markers=task {exercise_test.py}
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==================== 7 passed in 0.08s ====================
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```
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### Common options
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- `-o` : override default `pytest.ini` (_you can use this to avoid marker warnings_)
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- `-v` : enable verbose output.
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- `-x` : stop running tests on first failure.
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- `--ff` : run failures from previous test before running other test cases.
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For additional options, use `python3 -m pytest -h` or `py -m pytest -h`.
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### Fixing warnings
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If you do not use `pytest -o markers=task` when invoking `pytest`, you might receive a `PytestUnknownMarkWarning` for tests that use our new syntax:
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```bash
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PytestUnknownMarkWarning: Unknown pytest.mark.task - is this a typo? You can register custom marks to avoid this warning - for details, see https://docs.pytest.org/en/stable/mark.html
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```
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To avoid typing `pytest -o markers=task` for every test you run, you can use a `pytest.ini` configuration file.
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We have made one that can be downloaded from the top level of the Python track directory: [pytest.ini][pytest.ini].
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You can also create your own `pytest.ini` file with the following content:
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```ini
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[pytest]
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markers =
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task: A concept exercise task.
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```
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Placing the `pytest.ini` file in the _root_ or _working_ directory for your Python track exercises will register the marks and stop the warnings.
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More information on pytest marks can be found in the `pytest` documentation on [marking test functions][pytest: marking test functions with attributes] and the `pytest` documentation on [working with custom markers][pytest: working with custom markers].
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Information on customizing pytest configurations can be found in the `pytest` documentation on [configuration file formats][pytest: configuration file formats].
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### Extending your IDE or Code Editor
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Many IDEs and code editors have built-in support for using `pytest` and other code quality tools.
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Some community-sourced options can be found on our [Python track tools page][Python track tools page].
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[Pytest: Getting Started Guide]: https://docs.pytest.org/en/latest/getting-started.html
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[Python track tools page]: https://exercism.org/docs/tracks/python/tools
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[Python track tests page]: https://exercism.org/docs/tracks/python/tests
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[pytest-cache]:http://pythonhosted.org/pytest-cache/
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[pytest-subtests]:https://github.com/pytest-dev/pytest-subtests
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[pytest.ini]: https://github.com/exercism/python/blob/main/pytest.ini
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[pytest: configuration file formats]: https://docs.pytest.org/en/6.2.x/customize.html#configuration-file-formats
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[pytest: marking test functions with attributes]: https://docs.pytest.org/en/6.2.x/mark.html#raising-errors-on-unknown-marks
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[pytest: working with custom markers]: https://docs.pytest.org/en/6.2.x/example/markers.html#working-with-custom-markers
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## Submitting your solution
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You can submit your solution using the `exercism submit secret_handshake.py` command.
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This command will upload your solution to the Exercism website and print the solution page's URL.
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It's possible to submit an incomplete solution which allows you to:
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- See how others have completed the exercise
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- Request help from a mentor
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## Need to get help?
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If you'd like help solving the exercise, check the following pages:
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- The [Python track's documentation](https://exercism.org/docs/tracks/python)
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- The [Python track's programming category on the forum](https://forum.exercism.org/c/programming/python)
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- [Exercism's programming category on the forum](https://forum.exercism.org/c/programming/5)
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- The [Frequently Asked Questions](https://exercism.org/docs/using/faqs)
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Should those resources not suffice, you could submit your (incomplete) solution to request mentoring.
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Below are some resources for getting help if you run into trouble:
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- [The PSF](https://www.python.org) hosts Python downloads, documentation, and community resources.
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- [The Exercism Community on Discord](https://exercism.org/r/discord)
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- [Python Community on Discord](https://pythondiscord.com/) is a very helpful and active community.
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- [/r/learnpython/](https://www.reddit.com/r/learnpython/) is a subreddit designed for Python learners.
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- [#python on Libera.chat](https://www.python.org/community/irc/) this is where the core developers for the language hang out and get work done.
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- [Python Community Forums](https://discuss.python.org/)
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- [Free Code Camp Community Forums](https://forum.freecodecamp.org/)
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- [CodeNewbie Community Help Tag](https://community.codenewbie.org/t/help)
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- [Pythontutor](http://pythontutor.com/) for stepping through small code snippets visually.
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Additionally, [StackOverflow](http://stackoverflow.com/questions/tagged/python) is a good spot to search for your problem/question to see if it has been answered already.
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If not - you can always [ask](https://stackoverflow.com/help/how-to-ask) or [answer](https://stackoverflow.com/help/how-to-answer) someone else's question.
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# Secret Handshake
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Welcome to Secret Handshake on Exercism's Python Track.
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If you need help running the tests or submitting your code, check out `HELP.md`.
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## Introduction
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You are starting a secret coding club with some friends and friends-of-friends.
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Not everyone knows each other, so you and your friends have decided to create a secret handshake that you can use to recognize that someone is a member.
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You don't want anyone who isn't in the know to be able to crack the code.
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You've designed the code so that one person says a number between 1 and 31, and the other person turns it into a series of actions.
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## Instructions
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Your task is to convert a number between 1 and 31 to a sequence of actions in the secret handshake.
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The sequence of actions is chosen by looking at the rightmost five digits of the number once it's been converted to binary.
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Start at the right-most digit and move left.
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The actions for each number place are:
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```plaintext
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00001 = wink
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00010 = double blink
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00100 = close your eyes
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01000 = jump
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10000 = Reverse the order of the operations in the secret handshake.
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```
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Let's use the number `9` as an example:
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- 9 in binary is `1001`.
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- The digit that is farthest to the right is 1, so the first action is `wink`.
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- Going left, the next digit is 0, so there is no double-blink.
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- Going left again, the next digit is 0, so you leave your eyes open.
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- Going left again, the next digit is 1, so you jump.
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That was the last digit, so the final code is:
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```plaintext
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wink, jump
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```
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Given the number 26, which is `11010` in binary, we get the following actions:
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- double blink
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- jump
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- reverse actions
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The secret handshake for 26 is therefore:
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```plaintext
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jump, double blink
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```
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~~~~exercism/note
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If you aren't sure what binary is or how it works, check out [this binary tutorial][intro-to-binary].
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[intro-to-binary]: https://medium.com/basecs/bits-bytes-building-with-binary-13cb4289aafa
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~~~~
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To keep things simple (and to let you focus on the important part of this exercise), your function will receive its inputs as binary strings:
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```
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>>> commands("00011")
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["wink", "double blink"]
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```
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## Source
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### Created by
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- @betegelse
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### Contributed to by
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- @behrtam
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- @cmccandless
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- @crsmi
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- @Dog
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- @Grociu
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- @ikhadykin
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- @kytrinyx
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- @N-Parsons
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- @pheanex
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- @sjakobi
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- @sjwarner-bp
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- @subkrish
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- @tqa236
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- @yawpitch
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### Based on
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Bert, in Mary Poppins - https://www.imdb.com/title/tt0058331/quotes/?item=qt0437047
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Binary file not shown.
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BIN
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BIN
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def commands(binary_str):
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list_of_commands: list = [
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0,
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"jump",
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"close your eyes",
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"double blink",
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"wink",
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]
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order_of_commands: list = []
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reverse_flag: bool = False
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for index, code in enumerate(binary_str):
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# if code is a '1', append the corresponded command to the order_of_commands
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# unless the index is 0: in that case set the reverse_flag to True
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# keep in mind i am searching for commands from left to right, so the order
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# of commands is already reversed
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if code == "1":
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if index == 0:
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reverse_flag = True
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else:
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order_of_commands.append(list_of_commands[index])
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# do i want to keep it reversed?
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if not reverse_flag:
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order_of_commands.reverse()
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return order_of_commands
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# These tests are auto-generated with test data from:
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# https://github.com/exercism/problem-specifications/tree/main/exercises/secret-handshake/canonical-data.json
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# File last updated on 2023-07-19
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import unittest
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from secret_handshake import (
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commands,
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)
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class SecretHandshakeTest(unittest.TestCase):
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def test_wink_for_1(self):
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self.assertEqual(commands("00001"), ["wink"])
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def test_double_blink_for_10(self):
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self.assertEqual(commands("00010"), ["double blink"])
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def test_close_your_eyes_for_100(self):
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self.assertEqual(commands("00100"), ["close your eyes"])
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def test_jump_for_1000(self):
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self.assertEqual(commands("01000"), ["jump"])
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def test_combine_two_actions(self):
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self.assertEqual(commands("00011"), ["wink", "double blink"])
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def test_reverse_two_actions(self):
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self.assertEqual(commands("10011"), ["double blink", "wink"])
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def test_reversing_one_action_gives_the_same_action(self):
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self.assertEqual(commands("11000"), ["jump"])
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def test_reversing_no_actions_still_gives_no_actions(self):
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self.assertEqual(commands("10000"), [])
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def test_all_possible_actions(self):
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self.assertEqual(
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commands("01111"), ["wink", "double blink", "close your eyes", "jump"]
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)
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def test_reverse_all_possible_actions(self):
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self.assertEqual(
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commands("11111"), ["jump", "close your eyes", "double blink", "wink"]
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)
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def test_do_nothing_for_zero(self):
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self.assertEqual(commands("00000"), [])
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