VCR.py
Automatically mock your HTTP interactions to simplify and speed up testing (by kevin1024)
freezegun
Let your Python tests travel through time (by spulec)
Our great sponsors
| VCR.py | freezegun | |
|---|---|---|
| 6 | 9 | |
| 2,610 | 3,970 | |
| - | - | |
| 8.9 | 6.7 | |
| 7 days ago | 5 days ago | |
| Python | Python | |
| MIT License | Apache License 2.0 |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
VCR.py
Posts with mentions or reviews of VCR.py.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-05-16.
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Please recommend a good API Mocking tool
I made a library for this: https://github.com/kevin1024/vcrpy
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3 Ways to Unit Test REST APIs in Python
Now it’s finally the time to discuss our last option. I have only found about it quite recently, frankly. I’ve been using mocks for a long time and always had some problem with them. VCR.py is a library that simplifies a lot the tests that make HTTP requests.
- My Python testing style guide – Stargirl (Thea) Flowers
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Two Methods for Testing HTTPS API Calls with Python and pytest and also Communicating with the In-laws
Unfortunately, VCR.py only supports a certain number of HTTP client libraries. Thankfully, some very popular implementations are included: the Python built-in urllib and http.client, as well as requests, urllib3, and aiohttp. And, while it may not be listed in the docs at the time of this writing, the changelog notes that HTTPX is also supported. Sadly, pycurl is not supported.
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Magic numbers for Verify?
I don't normally work in Python, so I'm not used to writing mocks. You should be able to mock the client, but if that is too much you might look into something like VCR.py which records underlying HTTP interactions and then plays them back in further tests. (Make sure to redact any API keys from the cassettes though.)
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playback-proxy - record communication between client and server and play it back later during testing
https://betamax.readthedocs.io/en/latest/ https://github.com/kevin1024/vcrpy
freezegun
Posts with mentions or reviews of freezegun.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-12-19.
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About time: how to unit test code that depends on time
* in C++.
On Python, just use freezegun to inject controllable timestamps in response to calls to time methods.
https://github.com/spulec/freezegun
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How to simulate a delay in a test?
I had much fun with https://github.com/spulec/freezegun
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Unnecessary unit-test mocking?
If you're ever in Python-land, freezegun is a super neat library that snags all the time/date related functions and lets you control time from code.
- Microsoft Exchange stops passing mail due to bug on 1/1/22
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Python: Please stop screwing over Linux distros
For example, freezegun which is a common testing utility.
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Mocking Python datetime In Tests With FreezeGun
FreezeGun is a library that helps with mocking out the datetime.datetime.now function. It is a very useful tool for testing code that uses the datetime library.
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Introduction to Flaky Tests by Example
Another way of doing so would be to inject the value directly to the method. Python has a very good library to sandbox the tests when using the built-in datetime objects: freezegun. Once again, and unfortunately for us, the project was using arrow so this was not a possibility.
- FreezeGun: Let your Python tests travel through time
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As a beginner to testing, what is the best and fastest way to create testing cases?
If you do time sensitive tests, use freeze gun to make them reproducible https://github.com/spulec/freezegun
What are some alternatives?
When comparing VCR.py and freezegun you can also consider the following projects:
responses - A utility for mocking out the Python Requests library.
time-machine - Travel through time in your tests.
mock - The Python mock library
python-libfaketime - A fast time mocking alternative to freezegun that wraps libfaketime.
betamax - A VCR imitation designed only for python-requests.
Moto - A library that allows you to easily mock out tests based on AWS infrastructure.
httpretty - Intercept HTTP requests at the Python socket level. Fakes the whole socket module
httmock - A mocking library for requests
doublex