fix: drop asynctest

[dbluhm]

I felt like doing something tedious and mind-numbing (only mostly joking; macros and :bufdo/:cfdo combined with ruff made this go pretty quick) so I took a stab at removing asynctest and replacing it with the IsolatedAsyncioTestCase and AsyncMock objects now included in the builtin unittest package.

Fixes #1717

Given that there are other PRs currently open (and others in the works, I'm sure), I'll describe the general process I followed (updated):

• For all files using CoroutineMock, import it from aries_cloudagent.tests.mock instead of unittest.mock or asynctest.mock.
• For all files containing AsyncTest:
  • Replace AsyncTest in the class bases with IsolatedAsyncioTestCase
  • Replace async def setUp to async def asyncSetUp
• Watch the warnings printed by pytest carefully to see if the updated tests emit a "such_and_such" was never awaited warning. This should be fixed:
  • Enable tracemalloc (I added -e PYTHONTRACEMALLOC=5 to the command in scripts/run_tests)
  • Using the traceback, locate the coroutine that wasn't awaited. Usually this is the result of a wonky mock. More completely mocking and setting the return values of async mocks should help.

There's a relatively small number of failing tests right now so opening as draft but I wanted to put this on the radar. No failing tests but still working through warnings.

[dbluhm]

Hiccup: AsyncMock returns AsyncMocks when called. CoroutineMock behaved more like an AsyncMock that returns MagicMocks. I'll see if I can provide a simple adapter since this has pretty drastic effects on some tests.

[dbluhm]

I'm discovering a frightening number of tests that were silently broken. I think the AsyncMock update is making this particular category of issue more obvious thanks to warnings it will emit when the coroutine isn't awaited. I'll continue to work through those warnings.

[dbluhm]

This PR is now ready for review. It is obviously a big change but the changes should be straightforward enough to follow. In reviewing these changes, I recommend checking out individual commits rather than viewing all files changed at once.

Given the size and the fact that this touches basically every single test module in ACA-Py, I'm more than happy to provide support to the authors of pending PRs to guide them through necessary changes or resolving conflicts.

[swcurran]

Yeoman work, @dbluhm — thank you. That was clearly a lot!

[swcurran]

BTW — it appears in a quick glance that there is a single non-test update — made to this file: aries_cloudagent/protocols/discovery/v1_0/manager.py

That was intended, I assume?

[dbluhm]

BTW — it appears in a quick glance that there is a single non-test update — made to this file: aries_cloudagent/protocols/discovery/v1_0/manager.py

That was intended, I assume?

It was an intentional change but in retrospect, it probably would have been better to leave it off this PR. The change shouldn't affect anything but better type hints within the changed method. I'll see about striking that change from my commits, just for the sake of keeping everything in this PR strictly about the tests.

[dbluhm]

I did a spot of history rewriting and reverted the change to the discovery v1 manager. This PR should now be exclusively test changes and fixes.

[dbluhm]

Doing one last step: removing asynctest as a dependency. Testing locally. I'll push once I've validated that everything looks good.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

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[usingtechnology]

incredible work! i know you don't use the devcontainer, so I will file a follow up ticket to make the tests work within the devcontainer. it's a ruff thing and I just need to figure out the path configuration.

Run: poetry run pytest

see messages like: FAILED aries_cloudagent/wallet/tests/test_util.py::ruff - FileNotFoundError: /home/vscode/.local/bin/ruff

In the devcontainer ruff is located:

/usr/local/lib/python3.9/site-packages/ruff
/usr/local/bin/ruff

Run: ./scripts/run_tests works perfectly. Awesome work. Great knowing that all the tests are properly executing.

[usingtechnology]

👏 - awesome.
Left a comment about a follow-up devcontainer only ticket but don't feel like that should hold up this PR.