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Testing Your Python Code Base: Unit vs. Integration | Real Python Podcast

What goes into creating automated tests for your Python code? Should you focus on testing the individual code sections or on how the entire system runs? Christopher Trudeau is back on the show this week, bringing another batch of PyCoder's Weekly articles and projects. 👉 Links from the show: https://realpython.com/podcasts/rpp/237/ We discuss a recent article from Semaphore about unit testing vs. integration testing. Christopher shares his experiences setting up automated tests for his own smaller projects. He also answers questions about building tests in an existing codebase and integrating tests across systems. We also share several other articles and projects from the Python community, including a news roundup, improving default line charts to journal-quality infographics, why `hash(-1) == hash(-2)` in Python, data cleaning in data science, ways to work with large files in Python, a lightweight CLI viewer for log files, and a tool for mocking the `datetime` module for testing. This episode is sponsored by Postman. Topics: 00:00:00 -- Introduction 00:02:28 -- Python news and releases 00:04:02 -- From Default Line Charts to Journal-Quality Infographics 00:07:25 -- PyViz: Python Tools for Data Visualization 00:09:25 -- Why Is hash(-1) == hash(-2) in Python? 00:12:40 -- Sponsor: Postman 00:13:32 -- Data Cleaning in Data Science 00:19:29 -- 10 Ways to Work With Large Files in Python 00:23:40 -- Unit Testing vs. Integration Testing 00:29:17 -- Does university curriculum cover this? 00:31:22 -- Building tests into smaller projects 00:36:04 -- Video Course Spotlight 00:37:30 -- How does the approach differ with clients or larger-scale projects? 00:40:45 -- How do tests act as documentation? 00:42:02 -- Difficulties in building integration tests 00:45:24 -- How do you limit the results of tests? 00:47:52 -- klp: Lightweight CLI Viewer for Log Files 00:50:54 -- freezegun: Mocks the datetime Module for Testing 00:53:11 -- Thanks and goodbye 👉 Links from the show: https://realpython.com/podcasts/rpp/237/