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ByteSized: Testing your Python code

December 15, 2022 • RSE

This last episode of ByteSized RSE before the end of 2022 is about testing your Python code.
Testing is an essential part of software development, and a lot of what we cover in this episode applies to any programming and scripting language.

For Python, the two big frameworks being used are unittest and PyTest. Unittest is built into Python, whereas PyTest is a module you would need to install extra.

https://docs.python.org/3/library/unittest.html the built in unit testing framework of Python
- https://docs.python.org/3/library/unittest.mock.html mock testing in the unittest framework
- https://docs.python.org/3/library/unittest.html#class-and-module-fixtures fixtures for classes and modules
https://docs.pytest.org/en/7.2.x/ the popular PyTest framework
- Mocking can be done with monkeypatch in PyTest https://docs.pytest.org/en/7.1.x/how-to/monkeypatch.html#
- Fixtures in PyTest: https://docs.pytest.org/en/7.2.x/reference/fixtures.html

Books mentioned

Working effectively with legacy code, Michael Feathers, ISBN: 9780131177055, Pearson's, 2004
Refactoring: Improving the Design of Existing Code, Martin Fowler, ISBN: 9780134757681, 2nd edition, Addison-Wesley Professional

Byte-sized RSE is presented in collaboration with the UNIVERSE-HPC project.

https://www.imperial.ac.uk/computational-methods/rse/events/byte-sized-rse/ ByteSized RSE link to Imperial College

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