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The initial technique to implement `record_on_exception=False` was to not emptying the generator returned by `CassetteContextDecorator._patch_generator` when an exception happens to skip the `cassette._save` call, however this had the side effect of not emptying the `ExitStack` created inside the generator which contains the `_patch.__exit__` calls to remove the patches. This was innocuous in CPython, which uses a reference counting garbage collector so the `ExitStack` was immediately collected after losing scope and therefore its `__exit__` method executed. Pypy, on the other hand, uses a generational garbage collector so its objects may survive more time, enough for the `ExitStack` not called until much later, which may cause the patches to live more than expected when `record_on_exception=False`. This was found because the test `test_nesting_context_managers_by_checking_references_of_http_connection` was failing because it was executed after `test_dont_record_on_exception`. Now the cassette instance is saved inside the `CassetteContextDecorator` instance to have better control on where to save the cassette, and moved the `cassette._save` call from the `_patch_generator` method to the `__exit__` method to be free to empty the generator and remove the patches always.
########### VCR.py 📼 ########### |PyPI| |Python versions| |Build Status| |CodeCov| |Gitter| |CodeStyleBlack| ---- .. image:: https://vcrpy.readthedocs.io/en/latest/_images/vcr.svg :alt: vcr.py logo This is a Python version of `Ruby's VCR library <https://github.com/vcr/vcr>`__. Source code https://github.com/kevin1024/vcrpy Documentation https://vcrpy.readthedocs.io/ Rationale --------- VCR.py simplifies and speeds up tests that make HTTP requests. The first time you run code that is inside a VCR.py context manager or decorated function, VCR.py records all HTTP interactions that take place through the libraries it supports and serializes and writes them to a flat file (in yaml format by default). This flat file is called a cassette. When the relevant piece of code is executed again, VCR.py will read the serialized requests and responses from the aforementioned cassette file, and intercept any HTTP requests that it recognizes from the original test run and return the responses that corresponded to those requests. This means that the requests will not actually result in HTTP traffic, which confers several benefits including: - The ability to work offline - Completely deterministic tests - Increased test execution speed If the server you are testing against ever changes its API, all you need to do is delete your existing cassette files, and run your tests again. VCR.py will detect the absence of a cassette file and once again record all HTTP interactions, which will update them to correspond to the new API. Usage with Pytest ----------------- There is a library to provide some pytest fixtures called pytest-recording https://github.com/kiwicom/pytest-recording License ------- This library uses the MIT license. See `LICENSE.txt <LICENSE.txt>`__ for more details .. |PyPI| image:: https://img.shields.io/pypi/v/vcrpy.svg :target: https://pypi.python.org/pypi/vcrpy .. |Python versions| image:: https://img.shields.io/pypi/pyversions/vcrpy.svg :target: https://pypi.python.org/pypi/vcrpy .. |Build Status| image:: https://github.com/kevin1024/vcrpy/actions/workflows/main.yml/badge.svg :target: https://github.com/kevin1024/vcrpy/actions .. |Gitter| image:: https://badges.gitter.im/Join%20Chat.svg :alt: Join the chat at https://gitter.im/kevin1024/vcrpy :target: https://gitter.im/kevin1024/vcrpy?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge .. |CodeCov| image:: https://codecov.io/gh/kevin1024/vcrpy/branch/master/graph/badge.svg :target: https://codecov.io/gh/kevin1024/vcrpy :alt: Code Coverage Status .. |CodeStyleBlack| image:: https://img.shields.io/badge/code%20style-black-000000.svg :target: https://github.com/psf/black :alt: Code Style: black