Add tests for ai/export.py

[ahuang11]

A bit more test coverage.

Bases off #727 because of dep warnings which turn into errors in tests

[codecov]

Codecov Report

Attention: Patch coverage is 89.89899% with 10 lines in your changes missing coverage. Please review.

Project coverage is 62.00%. Comparing base (73fda79) to head (98d47f7).

Files with missing lines	Patch %	Lines
lumen/tests/ai/test_export.py	89.24%	10 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #729      +/-   ##
==========================================
+ Coverage   60.82%   62.00%   +1.17%     
==========================================
  Files         100      101       +1     
  Lines       12402    12500      +98     
==========================================
+ Hits         7543     7750     +207     
+ Misses       4859     4750     -109     

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[philippjfr]

Not sure this is quite right, I think there's ways to configure pytest-asyncio to create the loop.

[ahuang11]

Have you seen this traceback before?

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
.pixi\envs\test-310\lib\site-packages\_pytest\runner.py:242: in <lambda>
    lambda: runtest_hook(item=item, **kwds), when=when, reraise=reraise
.pixi\envs\test-310\lib\site-packages\pluggy\_hooks.py:513: in __call__
    return self._hookexec(self.name, self._hookimpls.copy(), kwargs, firstresult)
.pixi\envs\test-310\lib\site-packages\pluggy\_manager.py:120: in _hookexec
    return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
.pixi\envs\test-310\lib\site-packages\_pytest\threadexception.py:97: in pytest_runtest_teardown
    yield from thread_exception_runtest_hook()
.pixi\envs\test-310\lib\site-packages\_pytest\threadexception.py:68: in thread_exception_runtest_hook
    yield
.pixi\envs\test-310\lib\site-packages\_pytest\unraisableexception.py:100: in pytest_runtest_teardown
    yield from unraisable_exception_runtest_hook()
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

    def unraisable_exception_runtest_hook() -> Generator[None]:
        with catch_unraisable_exception() as cm:
            try:
                yield
            finally:
                if cm.unraisable:
                    if cm.unraisable.err_msg is not None:
                        err_msg = cm.unraisable.err_msg
                    else:
                        err_msg = "Exception ignored in"
                    msg = f"{err_msg}: {cm.unraisable.object!r}\n\n"
                    msg += "".join(
                        traceback.format_exception(
                            cm.unraisable.exc_type,
                            cm.unraisable.exc_value,
                            cm.unraisable.exc_traceback,
                        )
                    )
>                   warnings.warn(pytest.PytestUnraisableExceptionWarning(msg))
E                   pytest.PytestUnraisableExceptionWarning: Exception ignored in: <coroutine object SelectorThread.__init__.<locals>.thread_manager_anext at 0x0000020605801AF0>
E                   
E                   Traceback (most recent call last):
E                     File "D:\a\lumen\lumen\.pixi\envs\test-310\lib\warnings.py", line 506, in _warn_unawaited_coroutine
E                       warn(msg, category=RuntimeWarning, stacklevel=2, source=coro)
E                   RuntimeWarning: coroutine 'SelectorThread.__init__.<locals>.thread_manager_anext' was never awaited

Not sure how to fix the windows tests.