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easy assertion with expected results saved to yaml files

Project description

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Easy assertion with expected results saved to yaml files.

Features

  • Creates yaml files for expected test results , a.k.a. tape.
  • Creates separate tape for each test file. Each tape stores results for all tests that have utilised tape fixture.
  • supports parametrized tests, as long as all parameters can be jsonified.
  • Hash functions are used to store and identify params.
  • Expected results are stored as dictionaries in yaml, so that they can be compared using tolerances.

Requirements

  • python >= 3.6

Installation

You can install “pytest-tape” via pip from PyPI:

$ pip install pytest-tape

Usage

Just use tape fixture in any of the tests and assert dictionary of results with it.

def test_correctness(tape):
    result_of_calc = {
    'a': [1,2,3], 'b':'Another_Random_Result', 'c': 45.99
    }
    assert tape == result_of_calc

First time the tests fails, tape writes to yaml file. Second and all subsequent times you run the test - it compares the result with what is on tape.

Contributing

Contributions are very welcome. Tests can be run with tox, please ensure the coverage at least stays the same before you submit a pull request.

License

Distributed under the terms of the MIT license, “pytest-tape” is free and open source software

Issues

If you encounter any problems, please file an issue along with a detailed description.

Acknowledgments

This pytest plugin was generated with Cookiecutter along with @hackebrot’s cookiecutter-pytest-plugin template.

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