primeiro commit com exercicios de Exercism realizados até esta data
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{
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"authors": [],
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"contributors": [
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"behrtam",
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"BethanyG",
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"cmccandless",
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"Dog",
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"ikhadykin",
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"kytrinyx",
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"lowks",
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"mpatibandla",
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"N-Parsons",
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"Nishant23",
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"pheanex",
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"rozuur",
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"sjakobi",
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"Stigjb",
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"tqa236",
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"xitanggg",
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"YuriyCherniy"
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],
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"files": {
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"solution": [
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"triangle.py"
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],
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"test": [
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"triangle_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": "Determine if a triangle is equilateral, isosceles, or scalene.",
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"source": "The Ruby Koans triangle project, parts 1 & 2",
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"source_url": "https://web.archive.org/web/20220831105330/http://rubykoans.com"
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}
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{"track":"python","exercise":"triangle","id":"fe581408dd64463f956ee1f7a6d7cc57","url":"https://exercism.org/tracks/python/exercises/triangle","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 triangle.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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# Triangle
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Welcome to Triangle 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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## Instructions
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Determine if a triangle is equilateral, isosceles, or scalene.
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An _equilateral_ triangle has all three sides the same length.
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An _isosceles_ triangle has at least two sides the same length.
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(It is sometimes specified as having exactly two sides the same length, but for the purposes of this exercise we'll say at least two.)
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A _scalene_ triangle has all sides of different lengths.
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## Note
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For a shape to be a triangle at all, all sides have to be of length > 0, and the sum of the lengths of any two sides must be greater than or equal to the length of the third side.
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In equations:
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Let `a`, `b`, and `c` be sides of the triangle.
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Then all three of the following expressions must be true:
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```text
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a + b ≥ c
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b + c ≥ a
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a + c ≥ b
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```
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See [Triangle Inequality][triangle-inequality]
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[triangle-inequality]: https://en.wikipedia.org/wiki/Triangle_inequality
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## Source
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### Contributed to by
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- @behrtam
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- @BethanyG
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- @cmccandless
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- @Dog
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- @ikhadykin
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- @kytrinyx
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- @lowks
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- @mpatibandla
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- @N-Parsons
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- @Nishant23
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- @pheanex
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- @rozuur
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- @sjakobi
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- @Stigjb
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- @tqa236
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- @xitanggg
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- @YuriyCherniy
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### Based on
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The Ruby Koans triangle project, parts 1 & 2 - https://web.archive.org/web/20220831105330/http://rubykoans.com
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def equilateral(sides):
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for side in sides:
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if side == 0:
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return False
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return (sides[0] == sides[1]) and (sides[0] == sides[2]) and (sides[1] == sides[2])
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def isosceles(sides):
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for side in sides:
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if side == 0:
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return False
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if (
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(sides[0] + sides[1] < sides[2])
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or (sides[1] + sides[2] < sides[0])
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or (sides[2] + sides[0] < sides[1])
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):
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return False
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return (sides[0] == sides[1]) or (sides[0] == sides[2]) or (sides[1] == sides[2])
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def scalene(sides):
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for side in sides:
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if side == 0:
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return False
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if (
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(sides[0] + sides[1] < sides[2])
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or (sides[1] + sides[2] < sides[0])
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or (sides[2] + sides[0] < sides[1])
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):
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return False
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return (sides[0] != sides[1]) and (sides[0] != sides[2]) and (sides[1] != sides[2])
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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/triangle/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 triangle import (
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equilateral,
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isosceles,
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scalene,
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)
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class EquilateralTriangleTest(unittest.TestCase):
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def test_all_sides_are_equal(self):
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self.assertIs(equilateral([2, 2, 2]), True)
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def test_any_side_is_unequal(self):
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self.assertIs(equilateral([2, 3, 2]), False)
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def test_no_sides_are_equal(self):
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self.assertIs(equilateral([5, 4, 6]), False)
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def test_all_zero_sides_is_not_a_triangle(self):
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self.assertIs(equilateral([0, 0, 0]), False)
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def test_sides_may_be_floats(self):
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self.assertIs(equilateral([0.5, 0.5, 0.5]), True)
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class IsoscelesTriangleTest(unittest.TestCase):
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def test_last_two_sides_are_equal(self):
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self.assertIs(isosceles([3, 4, 4]), True)
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def test_first_two_sides_are_equal(self):
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self.assertIs(isosceles([4, 4, 3]), True)
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def test_first_and_last_sides_are_equal(self):
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self.assertIs(isosceles([4, 3, 4]), True)
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def test_equilateral_triangles_are_also_isosceles(self):
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self.assertIs(isosceles([4, 4, 4]), True)
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def test_no_sides_are_equal(self):
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self.assertIs(isosceles([2, 3, 4]), False)
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def test_first_triangle_inequality_violation(self):
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self.assertIs(isosceles([1, 1, 3]), False)
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def test_second_triangle_inequality_violation(self):
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self.assertIs(isosceles([1, 3, 1]), False)
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def test_third_triangle_inequality_violation(self):
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self.assertIs(isosceles([3, 1, 1]), False)
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def test_sides_may_be_floats(self):
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self.assertIs(isosceles([0.5, 0.4, 0.5]), True)
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class ScaleneTriangleTest(unittest.TestCase):
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def test_no_sides_are_equal(self):
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self.assertIs(scalene([5, 4, 6]), True)
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def test_all_sides_are_equal(self):
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self.assertIs(scalene([4, 4, 4]), False)
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def test_first_and_second_sides_are_equal(self):
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self.assertIs(scalene([4, 4, 3]), False)
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def test_first_and_third_sides_are_equal(self):
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self.assertIs(scalene([3, 4, 3]), False)
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def test_second_and_third_sides_are_equal(self):
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self.assertIs(scalene([4, 3, 3]), False)
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def test_may_not_violate_triangle_inequality(self):
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self.assertIs(scalene([7, 3, 2]), False)
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def test_sides_may_be_floats(self):
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self.assertIs(scalene([0.5, 0.4, 0.6]), True)
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