Skip to main content

Easy and expressive busy-waiting for Python

Project description

Easy and expressive busy-waiting for Python

Intro

Although you wouldn't want to do much busy waiting in your production code, Testing is a different matter. When testing asynchronous systems, it's very helpful to wait for some scenario to finish its course. BusyPie will help you to do busy waiting easily and expressively.

Installation

To install it using pip

python -m pip install busypie

To include it in requirements.txt file add

busypie==0.2.1

Example

Most typical usage will be in test, when we have a scenario that require us to wait for something to happen.

def test_event_should_be_dispatched():
    dispatcher.dispatch(event)
    wait().at_most(2, SECONDS).until(event_dispatched)

Usage

Wait for a condition. Default wait time is 10 seconds.

wait().until(condiction_function)
wait().during(condition_function)

Specify maximum time to meet the condition

wait().at_most(FIVE_SECONDS).until(condition_function)
wait_at_most(FIVE_SECONDS).until(condition_function)
wait().at_most(10, SECOND).until(condition_function)
wait_at_most(10, SECONDS).until(condition_function)    

Ignoring exceptions thrown from a condition function

given().ignore_exceptions().wait().until(condiction_function)
wait().ignore_exceptions(ZeroDevisionError).until(condiction_function)

Changing poll interval

wait().poll_interval(FIVE_HUNDRED_MILLISECONDS).until(condiction_function)
wait().poll_interval(2, SECOND).until(condiction_function)

Changing polling delay

wait().poll_delay(SECOND).during(app_is_pending)

Credits

This project took a lot of inspiration from Awaitility

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Files for busypie, version 0.2.1
Filename, size File type Python version Upload date Hashes
Filename, size busypie-0.2.1-py3-none-any.whl (8.9 kB) File type Wheel Python version py3 Upload date Hashes View hashes
Filename, size busypie-0.2.1.tar.gz (4.1 kB) File type Source Python version None Upload date Hashes View hashes

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging AWS AWS Cloud computing DataDog DataDog Monitoring Fastly Fastly CDN DigiCert DigiCert EV certificate StatusPage StatusPage Status page