python - Wait-Until strategy in PyTest - Stack Overflow

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I'm testing asynchronous code using PyTest.

Can't find any existing libraries that provide simple function like "Await until" or "Polling":

operation.run_in_background()

await_until(lambda: operation.is_ready(), interval=1, timeout=10)

It's easy to implement such function, but I believe there is a ready library for this.

Thank you.

I'm testing asynchronous code using PyTest.

Can't find any existing libraries that provide simple function like "Await until" or "Polling":

operation.run_in_background()

await_until(lambda: operation.is_ready(), interval=1, timeout=10)

It's easy to implement such function, but I believe there is a ready library for this.

Thank you.

• python
• asynchronous
• pytest
• assert

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1 Answer 1

Sorted by: Reset to default 0

polling might be a good fit for you.

operation.run_in_background()
timeout_s = 10
interval_s = 1
try:
    polling.poll(
        lambda: operation.is_ready(),
        timeout=timeout_s,
        step=interval_s
    )
except polling.TimeoutException:
    pytest.fail(f"Operation could not be completed within {timeout_s}s.")

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