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# -*- coding: utf-8 -*-
from time import sleep
from unittest.mock import Mock
from pyee.executor import ExecutorEventEmitter
class PyeeTestError(Exception):
pass
def test_executor_emit():
"""Test that ExecutorEventEmitters can emit events."""
with ExecutorEventEmitter() as ee:
should_call = Mock()
@ee.on("event")
def event_handler():
should_call(True)
ee.emit("event")
sleep(0.1)
should_call.assert_called_once()
def test_executor_once():
"""Test that ExecutorEventEmitters also emit events for once."""
with ExecutorEventEmitter() as ee:
should_call = Mock()
@ee.once("event")
def event_handler():
should_call(True)
ee.emit("event")
sleep(0.1)
should_call.assert_called_once()
def test_executor_error():
"""Test that ExecutorEventEmitters handle errors."""
with ExecutorEventEmitter() as ee:
should_call = Mock()
@ee.on("event")
def event_handler():
raise PyeeTestError()
@ee.on("error")
def handle_error(e):
should_call(e)
ee.emit("event")
sleep(0.1)
should_call.assert_called_once()
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