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content/blog/tox.md

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+---
+title: "Tox"
+date: 2020-02-21T22:34:19-05:00
+draft: false
+tags: [ "python", "testing" ]
+---
+
+[Tox](https://tox.readthedocs.io/en/latest/) is a great project where you can automate your testing using virtual environments.
+
+First install tox
+```bash
+pip install tox
+```
+
+I like to write my tests in Python's native [`unittest`](https://docs.python.org/3/library/unittest.html) format. Tests should be stored in a `tests` directory.
+
+I then combine it with the `coverage` library to tell me how much of my code that my test cases cover. To quickly insert my personal opinion, I never aim for 100% test coverage since there's typically overhead in maintaining that. 
+
+This all gets described in a `tox.ini` file. This file should live in the same directory as your `setup.py`
+
+```ini
+[tox]
+envlist =
+    py38
+
+[testenv]
+deps = coverage
+commands =
+    coverage run --source=tests,library -m unittest discover tests
+    coverage report -m
+```
+