pytest.mark.asyncio with pytest.mark.parametrize may break async

[SamShao-crypto]

when i use pytest.mark.asyncio with pytest.mark.parametrize，the async logic break

[SamShao-crypto]

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[SamShao-crypto]

total exhaust 6 sec，but expected lower than 6 （which is the time spending for serial）

[seifertm]

This is the expected behavior. pytest-asyncio creates a synchronous wrapper function for each async test case. The tests do not run concurrently.

There's an existing feature request for tests that run concurrently. I'll close this in favor of #69. Feel free to continue the discussion there.