Pytest vs Unittest

When comparing unittest vs pytest, the community recommends pytest for most people. The most important reason people chose pytest is:

The idioms that pytest first introduced brought a change in the Python community because they made it possible for test suites to be written in a very compact style, or at least far more compact than was ever possible before. — Slant community

Pytest

Pros

• Allows for compact test suites
• Fixtures are simple and easy to use
• Minimal boilerplate
• Very pretty and useful failure information
• Tests parametrization
• Extensible (many of plugins are available)
• Pdb jus works
• Provides special routines to make testing easier
• Test discovery by file-path

Cons

• Compatibility issues with other testing frameworks

Unittest

Pros

• Part of the Python standard library
• Flexible test case execution
• Promotes grouping related tests into common test suites
• Very fast test collection
• Easy to use for people who are comfortable with testing in other languages
• Very precise test duration reports

Cons

• camelCase naming
• No color output
• Verbose

References

• Pytest vs unittest

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