Modern Python Projects Transcripts
Chapter: Testing code
Lecture: Extending pytest with plugins
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We saw that pytest offers a lot of functionality out of the box. But if something is not there,
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there is a huge chance that there is a plugin that you can use.
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There is the website called pytest plugins compatibility that gathers all the projects from pypi that matches the pytest-in the name,
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which are considered pytest plugins, so you can see there are over 800 plugins but a lot of them are no longer maintained.
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There are version 0.1 and they don't even support Python 3.6. But there are still plenty of very useful plugins,
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and in the next lesson, I will show you some of them. To add other plugin to pytest. You need to install it in the same virtual environment
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as pytest is installed. So let me show you how to add a plugin. I found the silly pytest plugin called pytest-emoji that basically adds emoji to the
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test reports. So let's copy this. Here I have the pytest chapter virtual environment with pytest installed.
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Go to add our plugin, we have to install it in the same environment, and now we can run pytest with the --emoji flag.
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So let's see how the output looks without the flag. I still have this one test failing because I'm using lower case foo, while my test
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is expecting uppercase foo. And what happens if we run it with emoji flag? Tadah, the boring docs has been changed to emojis.
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Well, it's a funny plugin. It's not the most useful one, so let's actually check out the useful plugins for pytest.