[drchickensalad]

How do you add a side effect and still call the original in pytest? This is easy in rspec but everywhere I google people say there's no good way.

For example, you're calling code which internally does Too().bar() and you want to advance your time mock after it's called.

[masklinn]

That… has nothing to do with pytest?

You’d probably use something like `wraps` or `side_effect` in `unittest.mock` to delegate to the original with some extra behaviours.

And / or use freezegun’s tick features, when you’re specifically dealing with time.

[bb88]

Replace the original function with a wrapper that calls the function then does the side effect.

This could effectively be something like a decorator.

As far as mocking time objects, look into pytest.freezegun. You should be able to control the date and time as you move forward.

I was able to mock out the datetime.now() at some point in the past. It wasn't with freezegun...

[simonw]

There are lots of good mocking fixtures available for pytest. I've used this one for clock stuff in the past: https://github.com/adamchainz/time-machine#pytest-plugin